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description Publicationkeyboard_double_arrow_right Other literature type , Article 2016 United States, Switzerland, France, Finland, France, FinlandPublisher:American Association for the Advancement of Science (AAAS) Funded by:EC | nanoCAVa, AKA | Formation and growth of a..., AKA | ATMOSPHERIC SCIENCES - Pa... +16 projectsEC| nanoCAVa ,AKA| Formation and growth of atmospheric aerosol particles: from molecular to global scale ,AKA| ATMOSPHERIC SCIENCES - Particularly for determination of cluster and nanoaerosol composition ,AKA| Measurement of Nano-particle Nucelation in the Atmosphere via Cluster Ion Mass Spectrometry ,FCT| Collaboration in the CLOUD experiment ,SNSF| Investigation of new particle formation in the CLOUD chamber at CERN and the PSI smog chamber ,AKA| Nanoaerosol synthesis for bridging laboratory and field investigations of new particle formation and growth ,AKA| Formation and growth of atmospheric aerosol particles: from molecular to global scale ,FWF| Chemical Characterization of Organic Nanoparticles ,UKRI| E-Infrastructure Interconnectivity EPSRC - Chris Taylor ,AKA| Infrastructure of Environmental and Atmospheric Sciences (ATM-Science) ,SNSF| CLOUD ,SNSF| FORCE Proposal to Investigation of Secondary Organic Aerosol Formation in the PSI Smog Chamber and at CERN ,EC| ATMNUCLE ,AKA| Computational research chain from quantum chemistry to climate change / Consortium: ComQuaCC ,AKA| Nucleation of particles and ice in the atmosphere: from surface layer to upper troposphere ,SNSF| Investigation of Secondary Organic Aerosol Formation in the PSI Smog Chamber and at CERN ,UKRI| Global Aerosol Synthesis and Science Project (GASSP) to reduce the uncertainty in aerosol radiative forcing ,SNSF| Molecular Imaging of CNS-Immune System Interactions in Multiple SclerosisEimear M. Dunne; Hamish Gordon; Andreas Kürten; Joao Almeida; Jonathan Duplissy; Christina Williamson; Ismael K. Ortega; Kirsty J. Pringle; Alexey Adamov; Urs Baltensperger; Peter Barmet; Francois Benduhn; F. Bianchi; Martin Breitenlechner; Antony D. Clarke; Joachim Curtius; Josef Dommen; Neil M. Donahue; Sebastian Ehrhart; Richard C. Flagan; Alessandro Franchin; Roberto Guida; Jani Hakala; Armin Hansel; Martin Heinritzi; Tuija Jokinen; Juha Kangasluoma; Jasper Kirkby; Markku Kulmala; Agnieszka Kupc; Michael J. Lawler; Katrianne Lehtipalo; Vladimir Makhmutov; Graham Mann; Serge Mathot; Joonas Merikanto; Pasi Miettinen; Athanasios Nenes; Antti Onnela; Alexandru Rap; Carly Reddington; Francesco Riccobono; N. A. D. Richards; Matti P. Rissanen; Linda Rondo; Nina Sarnela; Siegfried Schobesberger; Kamalika Sengupta; Mario Simon; Mikko Sipilä; James N. Smith; Yuri Stozkhov; António Tomé; Jasmin Tröstl; Paul E. Wagner; Daniela Wimmer; Paul M. Winkler; Douglas R. Worsnop; Kenneth S. Carslaw;pmid: 27789796
New particle formation in the atmosphere produces around half of the cloud condensation nuclei that seed cloud droplets. Such particles have a pivotal role in determining the properties of clouds and the global radiation balance. Dunne et al. used the CLOUD (Cosmics Leaving Outdoor Droplets) chamber at CERN to construct a model of aerosol formation based on laboratory measured nucleation rates. They found that nearly all nucleation involves either ammonia or biogenic organic compounds. Furthermore in the present day atmosphere cosmic ray intensity cannot meaningfully affect climate via nucleation.Science this issue p. 1119Fundamental questions remain about the origin of newly formed atmospheric aerosol particles because data from laboratory measurements have been insufficient to build global models. In contrast gas phase chemistry models have been based on laboratory kinetics measurements for decades. We built a global model of aerosol formation by using extensive laboratory measurements of rates of nucleation involving sulfuric acid ammonia ions and organic compounds conducted in the CERN CLOUD (Cosmics Leaving Outdoor Droplets) chamber. The simulations and a comparison with atmospheric observations show that nearly all nucleation throughout the present day atmosphere involves ammonia or biogenic organic compounds in addition to sulfuric acid. A considerable fraction of nucleation involves ions but the relatively weak dependence on ion concentrations indicates that for the processes studied variations in cosmic ray intensity do not appreciably affect climate through nucleation in the present day atmosphere.U http://science.sciencemag.org/content/sci/354/6316/1119.full.pdf
Science arrow_drop_down ScienceOther literature type . Article . 2016 . Peer-reviewedCaltech AuthorsArticle . 2016 . Peer-reviewedFull-Text: https://authors.library.caltech.edu/71775/5/Global%20atmospheric%20particle%20formation.pdfData sources: Caltech AuthorsInfoscience - EPFL scientific publicationsOther literature typeData sources: Infoscience - EPFL scientific publicationsadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess Routesbronze 276 citations 276 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!visibility 34visibility views 34 download downloads 740 Powered bymore_vert Science arrow_drop_down ScienceOther literature type . Article . 2016 . Peer-reviewedCaltech AuthorsArticle . 2016 . Peer-reviewedFull-Text: https://authors.library.caltech.edu/71775/5/Global%20atmospheric%20particle%20formation.pdfData sources: Caltech AuthorsInfoscience - EPFL scientific publicationsOther literature typeData sources: Infoscience - EPFL scientific publicationsadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Preprint 2022 France, Finland, FrancePublisher:Copernicus GmbH Funded by:EC | PolarRES, AKA | The impact of Antarctic I...EC| PolarRES ,AKA| The impact of Antarctic Ice Sheet - Southern Ocean interactions on marine ice sheet stability and ocean circulation/ Consortium: COLDY. Nie; Y. Nie; Y. Nie; C. Li; M. Vancoppenolle; B. Cheng; F. Boeira Dias; X. Lv; X. Lv; P. Uotila;The seasonally dependent Antarctic sea ice concentration (SIC) budget is well observed and synthesizes many important air–sea–ice interaction processes. However, it is rarely well simulated in Earth system models, and means to tune the former are not well understood. In this study, we investigate the sensitivity of 18 key NEMO4.0-SI3 (Nucleus for European Modelling of the Ocean coupled with the Sea Ice Modelling Integrated Initiative) model parameters on modelled SIC and sea ice volume (SIV) budgets in the Southern Ocean based on a total of 449 model runs and two global sensitivity analysis methods. We found that the simulated SIC and SIV budgets are sensitive to ice strength, the thermal conductivity of snow, the number of ice categories, two parameters related to lateral melting, ice–ocean drag coefficient and air–ice drag coefficient. An optimized ice–ocean drag coefficient and air–ice drag coefficient can reduce the root-mean-square error between simulated and observed SIC budgets by about 10 %. This implies that a more accurate calculation of ice velocity is the key to optimizing the SIC budget simulation, which is unlikely to be achieved perfectly by simply tuning the model parameters in the presence of biased atmospheric forcing. Nevertheless, 10 combinations of NEMO4.0-SI3 model parameters were recommended, as they could yield better sea ice extent and SIC budgets than when using the standard values.
ZENODO; Geoscientifi... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2023 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiGeoscientific Model Development (GMD)Other literature type . 2022Data sources: Copernicus Publicationshttps://doi.org/10.5194/gmd-20...Preprint . 2022 . Peer-reviewedLicense: CC BYData sources: CrossrefGeoscientific Model Development (GMD)Other literature type . 2023Data sources: Copernicus Publicationsadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/gmd-2022-170&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesgold 2 citations 2 popularity Average influence Average impulse Average Powered by BIP!visibility 9visibility views 9 download downloads 22 Powered bymore_vert ZENODO; Geoscientifi... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2023 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiGeoscientific Model Development (GMD)Other literature type . 2022Data sources: Copernicus Publicationshttps://doi.org/10.5194/gmd-20...Preprint . 2022 . Peer-reviewedLicense: CC BYData sources: CrossrefGeoscientific Model Development (GMD)Other literature type . 2023Data sources: Copernicus Publicationsadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/gmd-2022-170&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2023 Finland, Sweden, France, Germany, SwedenPublisher:IOP Publishing Funded by:EC | GreenFeedBack, AKA | Atmosphere and Climate Co..., NSF | LTER: Comparative Study o... +1 projectsEC| GreenFeedBack ,AKA| Atmosphere and Climate Competence Center (ACCC) / Consortium: ACCC ,NSF| LTER: Comparative Study of a Suite of Lakes in Wisconsin ,AKA| Atmosphere and Climate Competence Center (ACCC) / Consortium: ACCCMalgorzata Golub; Nikaan Koupaei-Abyazani; Timo Vesala; Ivan Mammarella; Anne Ojala; Gil Bohrer; Gesa A Weyhenmeyer; Peter D Blanken; Werner Eugster; Franziska Koebsch; Jiquan Chen; Kevin Czajkowski; Chandrashekhar Deshmukh; Frederic Guérin; Jouni Heiskanen; Elyn Humphreys; Anders Jonsson; Jan Karlsson; George Kling; Xuhui Lee; Heping Liu; Annalea Lohila; Erik Lundin; Tim Morin; Eva Podgrajsek; Maria Provenzale; Anna Rutgersson; Torsten Sachs; Erik Sahlée; Dominique Serça; Changliang Shao; Christopher Spence; Ian B Strachan; Wei Xiao; Ankur R Desai;Accounting for temporal changes in carbon dioxide (CO2) effluxes from freshwaters remains a challenge for global and regional carbon budgets. Here, we synthesize 171 site-months of flux measurements of CO2 based on the eddy covariance method from 13 lakes and reservoirs in the Northern Hemisphere, and quantify dynamics at multiple temporal scales. We found pronounced sub-annual variability in CO2 flux at all sites. By accounting for diel variation, only 11% of site-months were net daily sinks of CO2. Annual CO2 emissions had an average of 25% (range 3%–58%) interannual variation. Similar to studies on streams, nighttime emissions regularly exceeded daytime emissions. Biophysical regulations of CO2 flux variability were delineated through mutual information analysis. Sample analysis of CO2 fluxes indicate the importance of continuous measurements. Better characterization of short- and long-term variability is necessary to understand and improve detection of temporal changes of CO2 fluxes in response to natural and anthropogenic drivers. Our results indicate that existing global lake carbon budgets relying primarily on daytime measurements yield underestimates of net emissions. Correction in: Environmental Research Letters, vol. 18, issue 10, article number 109501DOI: 10.1088/1748-9326/acfb97
Publikationer från U... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2023 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiGFZ German Research Centre for GeosciencesArticle . 2023License: CC BYData sources: GFZ German Research Centre for Geosciencesadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1088/1748-9326/acb834&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesgold 5 citations 5 popularity Top 10% influence Average impulse Average Powered by BIP!more_vert Publikationer från U... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2023 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiGFZ German Research Centre for GeosciencesArticle . 2023License: CC BYData sources: GFZ German Research Centre for Geosciencesadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1088/1748-9326/acb834&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2018 France, Finland, FrancePublisher:American Geophysical Union (AGU) Funded by:AKA | High-latitude ionospheric..., AKA | Finnish Centre of Excelle...AKA| High-latitude ionospheric electrodynamics studied by EISCAT and TomoScand / Consortium: EISCATTOMO ,AKA| Finnish Centre of Excellence in Research of Sustainable Space / Consortium: FORESAILMarchaudon, A.; Blelly, P.-L.; Grandin, M.; Aikio, A.; Kozlovsky, A.; Virtanen, I.;doi: 10.1029/2018ja025744
AbstractOur aim is to understand the effect of high‐speed stream events on the high‐latitude ionosphere and more specifically the decrease of the foF2 frequency during the entire day following the impact. First, we have selected one summertime event, for which a large data set was available: Super Dual Auroral Radar Network (SuperDARN) and European Incoherent SCATter (EISCAT) radars, Tromsø and Sodankylä ionosondes, and the CHAllenging Minisatellite Payload (CHAMP) satellite. We modeled with the IPIM model (IRAP Plasmasphere Ionosphere Model) the dynamics of the ionosphere at Tromsø and Sodankylä using inputs derived from the data. The simulations nicely match the measurements made by the EISCAT radar and the ionosondes, and we showed that the decrease of foF2 is associated with a transition from F2 to F1 layer resulting from a decrease of neutral atomic oxygen concentration. Modeling showed that electrodynamics can explain short‐term behavior on the scale of a few hours, but long‐term behavior on the scale of a few days results from the perturbation induced in the atmosphere. Enhancement of convection is responsible for a sharp increase of the ion temperature by Joule heating, leading through chemistry to an immediate reduction of the F2 layer. Then, ion drag on neutrals is responsible for a rapid heating and expansion of the thermosphere. This expansion affects atomic oxygen through nonthermal upward flow, which results in a decrease of its concentration and amplifies the decrease of [O]/[N2] ratio. This thermospheric change explains long‐term extinction of the F2 layer.
Journal of Geophysic... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2018 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiJournal of Geophysical Research Space PhysicsArticle . 2018 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1029/2018ja025744&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 6 citations 6 popularity Average influence Average impulse Average Powered by BIP!more_vert Journal of Geophysic... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2018 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiJournal of Geophysical Research Space PhysicsArticle . 2018 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1029/2018ja025744&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2021 United Kingdom, Belgium, France, ItalyPublisher:Springer Science and Business Media LLC Funded by:NSF | Using Remote Sensing and ..., AKA | Finnish Centre of Excelle..., EC | SolMAG +1 projectsNSF| Using Remote Sensing and In-situ Observations to Advance Numerical MagnetoHydroDynamic (MHD) Simulations of Coronal Mass Ejection Eruptions ,AKA| Finnish Centre of Excellence in Research of Sustainable Space / Consortium: FORESAIL ,EC| SolMAG ,AKA| Shocks and Magnetosheaths in the Heliosphere / Consortium: SMASHNariaki Nitta; Tamitha Mulligan; Emilia Kilpua; Benjamin J. Lynch; Marilena Mierla; Jennifer O'Kane; Paolo Pagano; Erika Palmerio; Jens Pomoell; Ian G. Richardson; Luciano Rodriguez; Alexis P. Rouillard; Suvadip Sinha; Nandita Srivastava; Dana-Camelia Talpeanu; Stephanie L. Yardley; Andrei Zhukov;Geomagnetic storms are an important aspect of space weather and can result in significant impacts on space- and ground-based assets. The majority of strong storms are associated with the passage of interplanetary coronal mass ejections (ICMEs) in the near-Earth environment. In many cases, these ICMEs can be traced back unambiguously to a specific coronal mass ejection (CME) and solar activity on the frontside of the Sun. Hence, predicting the arrival of ICMEs at Earth from routine observations of CMEs and solar activity currently makes a major contribution to the forecasting of geomagnetic storms. However, it is clear that some ICMEs, which may also cause enhanced geomagnetic activity, cannot be traced back to an observed CME, or, if the CME is identified, its origin may be elusive or ambiguous in coronal images. Such CMEs have been termed "stealth CMEs." In this review, we focus on these "problem" geomagnetic storms in the sense that the solar/CME precursors are enigmatic and stealthy. We start by reviewing evidence for stealth CMEs discussed in past studies. We then identify several moderate to strong geomagnetic storms (minimum Dst < -50 nT) in solar cycle 24 for which the related solar sources and/or CMEs are unclear and apparently stealthy. We discuss the solar and in situ circumstances of these events and identify several scenarios that may account for their elusive solar signatures. These range from observational limitations (e.g., a coronagraph near Earth may not detect an incoming CME if it is diffuse and not wide enough) to the possibility that there is a class of mass ejections from the Sun that have only weak or hard-to-observe coronal signatures. In particular, some of these sources are only clearly revealed by considering the evolution of coronal structures over longer time intervals than is usually considered. We also review a variety of numerical modelling approaches... 60 pages, 25 figures, 5 tables. Accepted for publication in Space Science Reviews
Space Science Review... arrow_drop_down Space Science ReviewsArticle . 2021Full-Text: http://europepmc.org/articles/PMC8566663Data sources: PubMed CentralSt Andrews Research RepositoryArticle . 2021 . Peer-reviewedData sources: St Andrews Research Repositoryhttps://doi.org/10.48550/arxiv...Article . 2021License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s11214-021-00857-0&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 24 citations 24 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 9visibility views 9 download downloads 4 Powered bymore_vert Space Science Review... arrow_drop_down Space Science ReviewsArticle . 2021Full-Text: http://europepmc.org/articles/PMC8566663Data sources: PubMed CentralSt Andrews Research RepositoryArticle . 2021 . Peer-reviewedData sources: St Andrews Research Repositoryhttps://doi.org/10.48550/arxiv...Article . 2021License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s11214-021-00857-0&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2022 Spain, France, Switzerland, Italy, United Kingdom, FinlandPublisher:Springer Science and Business Media LLC Funded by:AKA | Global health risks relat..., EC | EXHAUSTIONAKA| Global health risks related to atmospheric composition and weather / Consortium: GLORIA ,EC| EXHAUSTIONSchneider, Rochelle; Masselot, Pierre; Vicedo-Cabrera, Ana M; Sera, Francesco; Blangiardo, Marta; Forlani, Chiara; Douros, John; Jorba, Oriol; Adani, Mario; Kouznetsov, Rostislav; Couvidat, Florian; Arteta, Joaquim; Raux, Blandine; Guevara, Marc; Colette, Augustin; Barré, Jérôme; Peuch, Vincent-Henri; Gasparrini, Antonio;Previous studies have reported a decrease in air pollution levels following the enforcement of lockdown measures during the first wave of the COVID-19 pandemic. However, these investigations were mostly based on simple pre-post comparisons using past years as a reference and did not assess the role of different policy interventions. This study contributes to knowledge by quantifying the association between specific lockdown measures and the decrease in NO2, O3, PM2.5, and PM10 levels across 47 European cities. It also estimated the number of avoided deaths during the period. This paper used new modelled data from the Copernicus Atmosphere Monitoring Service (CAMS) to define business-as-usual and lockdown scenarios of daily air pollution trends. This study applies a spatio-temporal Bayesian non-linear mixed effect model to quantify the changes in pollutant concentrations associated with the stringency indices of individual policy measures. The results indicated non-linear associations with a stronger decrease in NO2 compared to PM2.5 and PM10 concentrations at very strict policy levels. Differences across interventions were also identified, specifically the strong effects of actions linked to school/workplace closure, limitations on gatherings, and stay-at-home requirements. Finally, the observed decrease in pollution potentially resulted in hundreds of avoided deaths across Europe. This research had free and open access to all data sources. The work described in this paper has received funding from European Centre for Medium-Range Weather Forecasts (ECMWF) on behalf the European Union through commercial contract Ref. CAMS_95p. Several CAMS Regional Models of the CAMS_50 Service contributed to the present work (CHIMERE, LOTOS-EUROS, MINNI, MOCAGE, MONARCH, SILAM) under CAMS_71 coordination. CAMS_COP066 service provided the lockdown emissions information. O.J. and M.G. thankfully acknowledge the computer resources at Marenostrum and the technical support provided by Barcelona Supercomputing Center (RES-AECT-2020-1-0007). SILAM model runs was also funded by Finnish Academy GLORIA project (No310372). The study was supported by the European Union’s Horizon 2020 Project Exhaustion (Grant ID: 820655). "Article signat per 18 autors/es: Rochelle Schneider, Pierre Masselot, Ana M. Vicedo-Cabrera, Francesco Sera, Marta Blangiardo, Chiara Forlani, John Douros, Oriol Jorba, Mario Adani, Rostislav Kouznetsov, Florian Couvidat, Joaquim Arteta, Blandine Raux, Marc Guevara, Augustin Colette, Jérôme Barré, Vincent-Henri Peuch & Antonio Gasparrini " Peer Reviewed
Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2022Full-Text: http://europepmc.org/articles/PMC8791935Data sources: PubMed CentralFlore (Florence Research Repository)Article . 2022Data sources: Flore (Florence Research Repository)UPCommons. Portal del coneixement obert de la UPCOther literature type . Article . 2022 . Peer-reviewedLicense: CC BYData sources: UPCommons. Portal del coneixement obert de la UPCSpiral - Imperial College Digital RepositoryArticle . 2021License: CC BYData sources: Spiral - Imperial College Digital RepositoryHELDA - Digital Repository of the University of HelsinkiArticle . 2022 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiFlore (Florence Research Repository)Article . 2022Data sources: Flore (Florence Research Repository)Bern Open Repository and Information System (BORIS)Article . 2022 . Peer-reviewedData sources: Bern Open Repository and Information System (BORIS)Recolector de Ciencia Abierta, RECOLECTAArticle . 2022 . Peer-reviewedLicense: CC BYData sources: Recolector de Ciencia Abierta, RECOLECTAadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1038/s41598-021-04277-6&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 16 citations 16 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 68visibility views 68 download downloads 42 Powered bymore_vert Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2022Full-Text: http://europepmc.org/articles/PMC8791935Data sources: PubMed CentralFlore (Florence Research Repository)Article . 2022Data sources: Flore (Florence Research Repository)UPCommons. Portal del coneixement obert de la UPCOther literature type . Article . 2022 . Peer-reviewedLicense: CC BYData sources: UPCommons. Portal del coneixement obert de la UPCSpiral - Imperial College Digital RepositoryArticle . 2021License: CC BYData sources: Spiral - Imperial College Digital RepositoryHELDA - Digital Repository of the University of HelsinkiArticle . 2022 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiFlore (Florence Research Repository)Article . 2022Data sources: Flore (Florence Research Repository)Bern Open Repository and Information System (BORIS)Article . 2022 . Peer-reviewedData sources: Bern Open Repository and Information System (BORIS)Recolector de Ciencia Abierta, RECOLECTAArticle . 2022 . Peer-reviewedLicense: CC BYData sources: Recolector de Ciencia Abierta, RECOLECTAadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Preprint 2012 France, FinlandPublisher:Copernicus GmbH Funded by:EC | NACLIM, EC | THOR, AKA | Heat and freshwater distr...EC| NACLIM ,EC| THOR ,AKA| Heat and freshwater distribution in the Arctic OceanM. Marnela; Bert Rudels; Marie-Noëlle Houssais; Agnieszka Beszczynska-Möller; Patrick B. Eriksson;Abstract. The volume, heat and freshwater transports in the Fram Strait are estimated from geostrophic computations based on summer hydrographic data from 1984, 1997, 2002 and 2004. In these years, in addition to the usually sampled section along 79° N, a section between Greenland and Svalbard was sampled further north. Quasi-closed boxes bounded by the two sections and Greenland and Svalbard can then be formed. Applying conservation constraints on these boxes provides barotropic reference velocities. The net volume flux is southward and varies between 2 and 4 Sv. The recirculation of Atlantic water is about 2 Sv. Heat is lost to the atmosphere and the heat loss from the area between the sections averaged over the four years is about 10 TW. The net heat (temperature) transport is 20 TW northward into the Arctic Ocean, with large interannual differences. The mean net freshwater added between the sections is 40 mSv and the mean freshwater transport southward across 79° N is less than 60 mSv, indicating that most of the liquid freshwater leaving the Arctic Ocean through Fram Strait in summer is derived from sea ice melt in the northern vicinity of the strait. In 1997, 2001 and 2003 meridional sections along 0° longitude were sampled and in 2003 two smaller boxes can be formed, and the recirculation of Atlantic water in the strait is estimated by geostrophic computations and continuity constraints. The recirculation is weaker close to 80° N than close to 78° N, indicating that the recirculation is mainly confined to the south of 80° N. This is supported by the observations in 1997 and 2001, when only the northern part of the meridional section, from 79° N to 80° N, can be computed with the constraints applied. The recirculation is found strongest close to 79° N.
Ocean Science arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2013 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiMémoires en Sciences de l'Information et de la Communication; HAL-CEA; HAL-IRD; HAL-UPMCArticle . 2013License: CC BYFull-Text: https://hal.science/hal-01491089/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess Routesgold 61 citations 61 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!visibility 19visibility views 19 download downloads 48 Powered bymore_vert Ocean Science arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2013 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiMémoires en Sciences de l'Information et de la Communication; HAL-CEA; HAL-IRD; HAL-UPMCArticle . 2013License: CC BYFull-Text: https://hal.science/hal-01491089/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2021 Finland, GermanyPublisher:Copernicus GmbH Funded by:UKRI | Improved Loss Modelling o..., AKA | Finnish Centre of Excelle..., EC | SolMAGUKRI| Improved Loss Modelling of SMC Components ,AKA| Finnish Centre of Excellence in Research of Sustainable Space / Consortium: FORESAIL ,EC| SolMAGI. A. Daglis; I. A. Daglis; L. C. Chang; S. Dasso; N. Gopalswamy; O. V. Khabarova; E. Kilpua; R. Lopez; D. Marsh; D. Marsh; K. Matthes; K. Matthes; D. Nandy; D. Nandy; A. Seppälä; K. Shiokawa; R. Thiéblemont; Q. Zong;Abstract. In October 2017, the Scientific Committee on Solar-Terrestrial Physics (SCOSTEP) Bureau established a committee for the design of SCOSTEP's Next Scientific Programme (NSP). The NSP committee members and authors of this paper decided from the very beginning of their deliberations that the predictability of the Sun–Earth System from a few hours to centuries is a timely scientific topic, combining the interests of different topical communities in a relevant way. Accordingly, the NSP was christened PRESTO – PREdictability of the variable Solar–Terrestrial cOupling. This paper presents a detailed account of PRESTO; we show the key milestones of the PRESTO roadmap for the next 5 years, review the current state of the art and discuss future studies required for the most effective development of solar–terrestrial physics.
CORE (RIOXX-UK Aggre... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2021 . Peer-reviewedData sources: HELDA - Digital Repository of the University of Helsinkiadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess Routesgold 10 citations 10 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 6visibility views 6 download downloads 27 Powered bymore_vert CORE (RIOXX-UK Aggre... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2021 . Peer-reviewedData sources: HELDA - Digital Repository of the University of Helsinkiadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Article 2023 Austria, Norway, France, Sweden, Finland, France, NetherlandsPublisher:Copernicus GmbH Funded by:AKA | Towards high resolution a..., EC | QUINCY, EC | VERIFY +5 projectsAKA| Towards high resolution atmospheric data-based greenhouse gas budgets by utilizing advances in supercomputing (GHGSUPER) ,EC| QUINCY ,EC| VERIFY ,EC| VISUALMEDIA ,EC| ESM2025 ,EC| CoCO2 ,EC| METLAKE ,AKA| Integrated Atmospheric and Earth System Science Research Infrastructure / Consortium: INAR RIA. M. R. Petrescu; C. Qiu; M. J. McGrath; P. Peylin; G. P. Peters; P. Ciais; R. L. Thompson; A. Tsuruta; D. Brunner; M. Kuhnert; B. Matthews; P. I. Palmer; O. Tarasova; P. Regnier; R. Lauerwald; D. Bastviken; L. Höglund-Isaksson; W. Winiwarter; W. Winiwarter; G. Etiope; T. Aalto; G. Balsamo; V. Bastrikov; A. Berchet; P. Brockmann; G. Ciotoli; G. Conchedda; M. Crippa; M. Crippa; F. Dentener; C. D. Groot Zwaaftink; D. Guizzardi; D. Günther; J.-M. Haussaire; S. Houweling; G. Janssens-Maenhout; M. Kouyate; A. Leip; A. Leip; A. Leppänen; E. Lugato; M. Maisonnier; A. J. Manning; T. Markkanen; J. McNorton; M. Muntean; G. D. Oreggioni; G. D. Oreggioni; P. K. Patra; L. Perugini; I. Pison; M. T. Raivonen; M. Saunois; A. J. Segers; P. Smith; E. Solazzo; H. Tian; F. N. Tubiello; T. Vesala; T. Vesala; G. R. van der Werf; C. Wilson; C. Wilson; S. Zaehle;Knowledge of the spatial distribution of the fluxes of greenhouse gases (GHGs) and their temporal variability as well as flux attribution to natural and anthropogenic processes is essential to monitoring the progress in mitigating anthropogenic emissions under the Paris Agreement and to inform its global stocktake. This study provides a consolidated synthesis of CH4 and N2O emissions using bottom-up (BU) and top-down (TD) approaches for the European Union and UK (EU27 + UK) and updates earlier syntheses (Petrescu et al., 2020, 2021). The work integrates updated emission inventory data, process-based model results, data-driven sector model results and inverse modeling estimates, and it extends the previous period of 1990-2017 to 2019. BU and TD products are compared with European national greenhouse gas inventories (NGHGIs) reported by parties under the United Nations Framework Convention on Climate Change (UNFCCC) in 2021. Uncertainties in NGHGIs, as reported to the UNFCCC by the EU and its member states, are also included in the synthesis. Variations in estimates produced with other methods, such as atmospheric inversion models (TD) or spatially disaggregated inventory datasets (BU), arise from diverse sources including within-model uncertainty related to parameterization as well as structural differences between models. By comparing NGHGIs with other approaches, the activities included are a key source of bias between estimates, e.g., anthropogenic and natural fluxes, which in atmospheric inversions are sensitive to the prior geospatial distribution of emissions. For CH4 emissions, over the updated 2015-2019 period, which covers a sufficiently robust number of overlapping estimates, and most importantly the NGHGIs, the anthropogenic BU approaches are directly comparable, accounting for mean emissions of 20.5 TgCH(4) yr(-1) (EDGARv6.0, last year 2018) and 18.4 TgCH(4) yr(-1) (GAINS, last year 2015), close to the NGHGI estimates of 17 :5 +/- 2 :1 TgCH(4) yr(-1). TD inversion estimates give higher emission estimates, as they also detect natural emissions. Over the same period, high-resolution regional TD inversions report a mean emission of 34 TgCH(4) yr(-1). Coarser-resolution global-scale TD inversions result in emission estimates of 23 and 24 TgCH(4) yr(-1) inferred from GOSAT and surface (SURF) network atmospheric measurements, respectively. The magnitude of natural peatland and mineral soil emissions from the JSBACH-HIMMELI model, natural rivers, lake and reservoir emissions, geological sources, and biomass burning together could account for the gap between NGHGI and inversions and account for 8 TgCH(4) yr(-1). For N2O emissions, over the 2015-2019 period, both BU products (EDGARv6.0 and GAINS) report a mean value of anthropogenic emissions of 0.9 TgN(2)Oyr(-1), close to the NGHGI data (0 :8 +/- 55% TgN(2)Oyr(-1)). Over the same period, the mean of TD global and regional inversions was 1.4 TgN(2)Oyr(-1) (excluding TOMCAT, which reported no data). The TD and BU comparison method defined in this study can be operationalized for future annual updates for the calculation of CH4 and N2O budgets at the national and EU27 C UK scales. Future comparability will be enhanced with further steps involving analysis at finer temporal resolutions and estimation of emissions over intra-annual timescales, which is of great importance for CH4 and N2O, and may help identify sector contributions to divergence between prior and posterior estimates at the annual and/or inter-annual scale. Even if currently comparison between CH4 and N2O inversion estimates and NGHGIs is highly uncertain because of the large spread in the inversion results, TD inversions inferred from atmospheric observations represent the most independent data against which inventory totals can be compared. With anticipated improvements in atmospheric modeling and observations, as well as modeling of natural fluxes, TD inversions may arguably emerge as the most powerful tool for verifying emission inventories for CH4, N2O and other GHGs. The referenced dataset srelated to figures are visualized at https://doi.org/10.5281/zenodo.7553800 (Petrescu et al., 2023). Funding Agencies|European Commission, Horizon 2020 Framework Programme (VER-IFY) [776810]; CLand Convergence Institute; Environment Research and Technology Development Fund of the Environmental Restoration and Conservation Agency of Japan [JP-MEERF20182002]; H2020 project ESM2025 - Earth System Models for the Future [101003536]; European Research Council (ERC) [725546]; European Union [958927]; Finnish Academy [351311, 345531]; ERC consolidator grant QUINCY [647204]
Earth System Science... arrow_drop_down Earth System Science Data (ESSD); Earth System Science DataArticle . 2023 . Peer-reviewedLicense: CC BYHELDA - Digital Repository of the University of HelsinkiArticle . 2023 . Peer-reviewedData sources: HELDA - Digital Repository of the University of Helsinkiadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 4 citations 4 popularity Top 10% influence Average impulse Average Powered by BIP!more_vert Earth System Science... arrow_drop_down Earth System Science Data (ESSD); Earth System Science DataArticle . 2023 . Peer-reviewedLicense: CC BYHELDA - Digital Repository of the University of HelsinkiArticle . 2023 . Peer-reviewedData sources: HELDA - Digital Repository of the University of Helsinkiadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/essd-15-1197-2023&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Article 2006 FinlandPublisher:Copernicus GmbH Funded by:AKA | Natural emissions of halo...AKA| Natural emissions of halogenated VOCs from the European boreal zoneHaapanala, Sami; Rinne, Janne; Pystynen, K.-H; Hellen, H; Hakola, H; Riutta, T;Fluxes of biogenic volatile organic compounds (VOC) and methane were measured above a boreal fen. Vegetation on the fen is dominated by Sphagnum mosses and sedges. A relaxed eddy accumulation (REA) system with dynamic deadband was designed and constructed for the measurements. Methane, C-2-C-6 hydrocarbons and some halogenated hydrocarbons were analysed from the samples by gas chromatographs equipped with FID and ECD. A significant flux of isoprene and methane was detected during the growing seasons. Isoprene emission was found to follow the common isoprene emission algorithm. Average standard emission potential of isoprene was 680 mu g m(-2) h(-1). Fluxes of other non-methane hydrocarbons were below detection limit. Fluxes of biogenic volatile organic compounds (VOC) and methane were measured above a boreal fen. Vegetation on the fen is dominated by Sphagnum mosses and sedges. A relaxed eddy accumulation (REA) system with dynamic deadband was designed and constructed for the measurements. Methane, C-2-C-6 hydrocarbons and some halogenated hydrocarbons were analysed from the samples by gas chromatographs equipped with FID and ECD. A significant flux of isoprene and methane was detected during the growing seasons. Isoprene emission was found to follow the common isoprene emission algorithm. Average standard emission potential of isoprene was 680 mu g m(-2) h(-1). Fluxes of other non-methane hydrocarbons were below detection limit. Fluxes of biogenic volatile organic compounds (VOC) and methane were measured above a boreal fen. Vegetation on the fen is dominated by Sphagnum mosses and sedges. A relaxed eddy accumulation (REA) system with dynamic deadband was designed and constructed for the measurements. Methane, C-2-C-6 hydrocarbons and some halogenated hydrocarbons were analysed from the samples by gas chromatographs equipped with FID and ECD. A significant flux of isoprene and methane was detected during the growing seasons. Isoprene emission was found to follow the common isoprene emission algorithm. Average standard emission potential of isoprene was 680 mu g m(-2) h(-1). Fluxes of other non-methane hydrocarbons were below detection limit. Peer reviewed
Hyper Article en Lig... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2006 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiMémoires en Sciences de l'Information et de la CommunicationArticle . 2006Full-Text: https://hal.science/hal-00297544/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess Routesgold 47 citations 47 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!more_vert Hyper Article en Lig... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2006 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiMémoires en Sciences de l'Information et de la CommunicationArticle . 2006Full-Text: https://hal.science/hal-00297544/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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description Publicationkeyboard_double_arrow_right Other literature type , Article 2016 United States, Switzerland, France, Finland, France, FinlandPublisher:American Association for the Advancement of Science (AAAS) Funded by:EC | nanoCAVa, AKA | Formation and growth of a..., AKA | ATMOSPHERIC SCIENCES - Pa... +16 projectsEC| nanoCAVa ,AKA| Formation and growth of atmospheric aerosol particles: from molecular to global scale ,AKA| ATMOSPHERIC SCIENCES - Particularly for determination of cluster and nanoaerosol composition ,AKA| Measurement of Nano-particle Nucelation in the Atmosphere via Cluster Ion Mass Spectrometry ,FCT| Collaboration in the CLOUD experiment ,SNSF| Investigation of new particle formation in the CLOUD chamber at CERN and the PSI smog chamber ,AKA| Nanoaerosol synthesis for bridging laboratory and field investigations of new particle formation and growth ,AKA| Formation and growth of atmospheric aerosol particles: from molecular to global scale ,FWF| Chemical Characterization of Organic Nanoparticles ,UKRI| E-Infrastructure Interconnectivity EPSRC - Chris Taylor ,AKA| Infrastructure of Environmental and Atmospheric Sciences (ATM-Science) ,SNSF| CLOUD ,SNSF| FORCE Proposal to Investigation of Secondary Organic Aerosol Formation in the PSI Smog Chamber and at CERN ,EC| ATMNUCLE ,AKA| Computational research chain from quantum chemistry to climate change / Consortium: ComQuaCC ,AKA| Nucleation of particles and ice in the atmosphere: from surface layer to upper troposphere ,SNSF| Investigation of Secondary Organic Aerosol Formation in the PSI Smog Chamber and at CERN ,UKRI| Global Aerosol Synthesis and Science Project (GASSP) to reduce the uncertainty in aerosol radiative forcing ,SNSF| Molecular Imaging of CNS-Immune System Interactions in Multiple SclerosisEimear M. Dunne; Hamish Gordon; Andreas Kürten; Joao Almeida; Jonathan Duplissy; Christina Williamson; Ismael K. Ortega; Kirsty J. Pringle; Alexey Adamov; Urs Baltensperger; Peter Barmet; Francois Benduhn; F. Bianchi; Martin Breitenlechner; Antony D. Clarke; Joachim Curtius; Josef Dommen; Neil M. Donahue; Sebastian Ehrhart; Richard C. Flagan; Alessandro Franchin; Roberto Guida; Jani Hakala; Armin Hansel; Martin Heinritzi; Tuija Jokinen; Juha Kangasluoma; Jasper Kirkby; Markku Kulmala; Agnieszka Kupc; Michael J. Lawler; Katrianne Lehtipalo; Vladimir Makhmutov; Graham Mann; Serge Mathot; Joonas Merikanto; Pasi Miettinen; Athanasios Nenes; Antti Onnela; Alexandru Rap; Carly Reddington; Francesco Riccobono; N. A. D. Richards; Matti P. Rissanen; Linda Rondo; Nina Sarnela; Siegfried Schobesberger; Kamalika Sengupta; Mario Simon; Mikko Sipilä; James N. Smith; Yuri Stozkhov; António Tomé; Jasmin Tröstl; Paul E. Wagner; Daniela Wimmer; Paul M. Winkler; Douglas R. Worsnop; Kenneth S. Carslaw;pmid: 27789796
New particle formation in the atmosphere produces around half of the cloud condensation nuclei that seed cloud droplets. Such particles have a pivotal role in determining the properties of clouds and the global radiation balance. Dunne et al. used the CLOUD (Cosmics Leaving Outdoor Droplets) chamber at CERN to construct a model of aerosol formation based on laboratory measured nucleation rates. They found that nearly all nucleation involves either ammonia or biogenic organic compounds. Furthermore in the present day atmosphere cosmic ray intensity cannot meaningfully affect climate via nucleation.Science this issue p. 1119Fundamental questions remain about the origin of newly formed atmospheric aerosol particles because data from laboratory measurements have been insufficient to build global models. In contrast gas phase chemistry models have been based on laboratory kinetics measurements for decades. We built a global model of aerosol formation by using extensive laboratory measurements of rates of nucleation involving sulfuric acid ammonia ions and organic compounds conducted in the CERN CLOUD (Cosmics Leaving Outdoor Droplets) chamber. The simulations and a comparison with atmospheric observations show that nearly all nucleation throughout the present day atmosphere involves ammonia or biogenic organic compounds in addition to sulfuric acid. A considerable fraction of nucleation involves ions but the relatively weak dependence on ion concentrations indicates that for the processes studied variations in cosmic ray intensity do not appreciably affect climate through nucleation in the present day atmosphere.U http://science.sciencemag.org/content/sci/354/6316/1119.full.pdf
Science arrow_drop_down ScienceOther literature type . Article . 2016 . Peer-reviewedCaltech AuthorsArticle . 2016 . Peer-reviewedFull-Text: https://authors.library.caltech.edu/71775/5/Global%20atmospheric%20particle%20formation.pdfData sources: Caltech AuthorsInfoscience - EPFL scientific publicationsOther literature typeData sources: Infoscience - EPFL scientific publicationsadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess Routesbronze 276 citations 276 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!visibility 34visibility views 34 download downloads 740 Powered bymore_vert Science arrow_drop_down ScienceOther literature type . Article . 2016 . Peer-reviewedCaltech AuthorsArticle . 2016 . Peer-reviewedFull-Text: https://authors.library.caltech.edu/71775/5/Global%20atmospheric%20particle%20formation.pdfData sources: Caltech AuthorsInfoscience - EPFL scientific publicationsOther literature typeData sources: Infoscience - EPFL scientific publicationsadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1126/science.aaf2649&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Preprint 2022 France, Finland, FrancePublisher:Copernicus GmbH Funded by:EC | PolarRES, AKA | The impact of Antarctic I...EC| PolarRES ,AKA| The impact of Antarctic Ice Sheet - Southern Ocean interactions on marine ice sheet stability and ocean circulation/ Consortium: COLDY. Nie; Y. Nie; Y. Nie; C. Li; M. Vancoppenolle; B. Cheng; F. Boeira Dias; X. Lv; X. Lv; P. Uotila;The seasonally dependent Antarctic sea ice concentration (SIC) budget is well observed and synthesizes many important air–sea–ice interaction processes. However, it is rarely well simulated in Earth system models, and means to tune the former are not well understood. In this study, we investigate the sensitivity of 18 key NEMO4.0-SI3 (Nucleus for European Modelling of the Ocean coupled with the Sea Ice Modelling Integrated Initiative) model parameters on modelled SIC and sea ice volume (SIV) budgets in the Southern Ocean based on a total of 449 model runs and two global sensitivity analysis methods. We found that the simulated SIC and SIV budgets are sensitive to ice strength, the thermal conductivity of snow, the number of ice categories, two parameters related to lateral melting, ice–ocean drag coefficient and air–ice drag coefficient. An optimized ice–ocean drag coefficient and air–ice drag coefficient can reduce the root-mean-square error between simulated and observed SIC budgets by about 10 %. This implies that a more accurate calculation of ice velocity is the key to optimizing the SIC budget simulation, which is unlikely to be achieved perfectly by simply tuning the model parameters in the presence of biased atmospheric forcing. Nevertheless, 10 combinations of NEMO4.0-SI3 model parameters were recommended, as they could yield better sea ice extent and SIC budgets than when using the standard values.
ZENODO; Geoscientifi... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2023 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiGeoscientific Model Development (GMD)Other literature type . 2022Data sources: Copernicus Publicationshttps://doi.org/10.5194/gmd-20...Preprint . 2022 . Peer-reviewedLicense: CC BYData sources: CrossrefGeoscientific Model Development (GMD)Other literature type . 2023Data sources: Copernicus Publicationsadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/gmd-2022-170&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesgold 2 citations 2 popularity Average influence Average impulse Average Powered by BIP!visibility 9visibility views 9 download downloads 22 Powered bymore_vert ZENODO; Geoscientifi... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2023 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiGeoscientific Model Development (GMD)Other literature type . 2022Data sources: Copernicus Publicationshttps://doi.org/10.5194/gmd-20...Preprint . 2022 . Peer-reviewedLicense: CC BYData sources: CrossrefGeoscientific Model Development (GMD)Other literature type . 2023Data sources: Copernicus Publicationsadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/gmd-2022-170&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2023 Finland, Sweden, France, Germany, SwedenPublisher:IOP Publishing Funded by:EC | GreenFeedBack, AKA | Atmosphere and Climate Co..., NSF | LTER: Comparative Study o... +1 projectsEC| GreenFeedBack ,AKA| Atmosphere and Climate Competence Center (ACCC) / Consortium: ACCC ,NSF| LTER: Comparative Study of a Suite of Lakes in Wisconsin ,AKA| Atmosphere and Climate Competence Center (ACCC) / Consortium: ACCCMalgorzata Golub; Nikaan Koupaei-Abyazani; Timo Vesala; Ivan Mammarella; Anne Ojala; Gil Bohrer; Gesa A Weyhenmeyer; Peter D Blanken; Werner Eugster; Franziska Koebsch; Jiquan Chen; Kevin Czajkowski; Chandrashekhar Deshmukh; Frederic Guérin; Jouni Heiskanen; Elyn Humphreys; Anders Jonsson; Jan Karlsson; George Kling; Xuhui Lee; Heping Liu; Annalea Lohila; Erik Lundin; Tim Morin; Eva Podgrajsek; Maria Provenzale; Anna Rutgersson; Torsten Sachs; Erik Sahlée; Dominique Serça; Changliang Shao; Christopher Spence; Ian B Strachan; Wei Xiao; Ankur R Desai;Accounting for temporal changes in carbon dioxide (CO2) effluxes from freshwaters remains a challenge for global and regional carbon budgets. Here, we synthesize 171 site-months of flux measurements of CO2 based on the eddy covariance method from 13 lakes and reservoirs in the Northern Hemisphere, and quantify dynamics at multiple temporal scales. We found pronounced sub-annual variability in CO2 flux at all sites. By accounting for diel variation, only 11% of site-months were net daily sinks of CO2. Annual CO2 emissions had an average of 25% (range 3%–58%) interannual variation. Similar to studies on streams, nighttime emissions regularly exceeded daytime emissions. Biophysical regulations of CO2 flux variability were delineated through mutual information analysis. Sample analysis of CO2 fluxes indicate the importance of continuous measurements. Better characterization of short- and long-term variability is necessary to understand and improve detection of temporal changes of CO2 fluxes in response to natural and anthropogenic drivers. Our results indicate that existing global lake carbon budgets relying primarily on daytime measurements yield underestimates of net emissions. Correction in: Environmental Research Letters, vol. 18, issue 10, article number 109501DOI: 10.1088/1748-9326/acfb97
Publikationer från U... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2023 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiGFZ German Research Centre for GeosciencesArticle . 2023License: CC BYData sources: GFZ German Research Centre for Geosciencesadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1088/1748-9326/acb834&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesgold 5 citations 5 popularity Top 10% influence Average impulse Average Powered by BIP!more_vert Publikationer från U... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2023 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiGFZ German Research Centre for GeosciencesArticle . 2023License: CC BYData sources: GFZ German Research Centre for Geosciencesadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1088/1748-9326/acb834&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2018 France, Finland, FrancePublisher:American Geophysical Union (AGU) Funded by:AKA | High-latitude ionospheric..., AKA | Finnish Centre of Excelle...AKA| High-latitude ionospheric electrodynamics studied by EISCAT and TomoScand / Consortium: EISCATTOMO ,AKA| Finnish Centre of Excellence in Research of Sustainable Space / Consortium: FORESAILMarchaudon, A.; Blelly, P.-L.; Grandin, M.; Aikio, A.; Kozlovsky, A.; Virtanen, I.;doi: 10.1029/2018ja025744
AbstractOur aim is to understand the effect of high‐speed stream events on the high‐latitude ionosphere and more specifically the decrease of the foF2 frequency during the entire day following the impact. First, we have selected one summertime event, for which a large data set was available: Super Dual Auroral Radar Network (SuperDARN) and European Incoherent SCATter (EISCAT) radars, Tromsø and Sodankylä ionosondes, and the CHAllenging Minisatellite Payload (CHAMP) satellite. We modeled with the IPIM model (IRAP Plasmasphere Ionosphere Model) the dynamics of the ionosphere at Tromsø and Sodankylä using inputs derived from the data. The simulations nicely match the measurements made by the EISCAT radar and the ionosondes, and we showed that the decrease of foF2 is associated with a transition from F2 to F1 layer resulting from a decrease of neutral atomic oxygen concentration. Modeling showed that electrodynamics can explain short‐term behavior on the scale of a few hours, but long‐term behavior on the scale of a few days results from the perturbation induced in the atmosphere. Enhancement of convection is responsible for a sharp increase of the ion temperature by Joule heating, leading through chemistry to an immediate reduction of the F2 layer. Then, ion drag on neutrals is responsible for a rapid heating and expansion of the thermosphere. This expansion affects atomic oxygen through nonthermal upward flow, which results in a decrease of its concentration and amplifies the decrease of [O]/[N2] ratio. This thermospheric change explains long‐term extinction of the F2 layer.
Journal of Geophysic... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2018 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiJournal of Geophysical Research Space PhysicsArticle . 2018 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1029/2018ja025744&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 6 citations 6 popularity Average influence Average impulse Average Powered by BIP!more_vert Journal of Geophysic... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2018 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiJournal of Geophysical Research Space PhysicsArticle . 2018 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1029/2018ja025744&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2021 United Kingdom, Belgium, France, ItalyPublisher:Springer Science and Business Media LLC Funded by:NSF | Using Remote Sensing and ..., AKA | Finnish Centre of Excelle..., EC | SolMAG +1 projectsNSF| Using Remote Sensing and In-situ Observations to Advance Numerical MagnetoHydroDynamic (MHD) Simulations of Coronal Mass Ejection Eruptions ,AKA| Finnish Centre of Excellence in Research of Sustainable Space / Consortium: FORESAIL ,EC| SolMAG ,AKA| Shocks and Magnetosheaths in the Heliosphere / Consortium: SMASHNariaki Nitta; Tamitha Mulligan; Emilia Kilpua; Benjamin J. Lynch; Marilena Mierla; Jennifer O'Kane; Paolo Pagano; Erika Palmerio; Jens Pomoell; Ian G. Richardson; Luciano Rodriguez; Alexis P. Rouillard; Suvadip Sinha; Nandita Srivastava; Dana-Camelia Talpeanu; Stephanie L. Yardley; Andrei Zhukov;Geomagnetic storms are an important aspect of space weather and can result in significant impacts on space- and ground-based assets. The majority of strong storms are associated with the passage of interplanetary coronal mass ejections (ICMEs) in the near-Earth environment. In many cases, these ICMEs can be traced back unambiguously to a specific coronal mass ejection (CME) and solar activity on the frontside of the Sun. Hence, predicting the arrival of ICMEs at Earth from routine observations of CMEs and solar activity currently makes a major contribution to the forecasting of geomagnetic storms. However, it is clear that some ICMEs, which may also cause enhanced geomagnetic activity, cannot be traced back to an observed CME, or, if the CME is identified, its origin may be elusive or ambiguous in coronal images. Such CMEs have been termed "stealth CMEs." In this review, we focus on these "problem" geomagnetic storms in the sense that the solar/CME precursors are enigmatic and stealthy. We start by reviewing evidence for stealth CMEs discussed in past studies. We then identify several moderate to strong geomagnetic storms (minimum Dst < -50 nT) in solar cycle 24 for which the related solar sources and/or CMEs are unclear and apparently stealthy. We discuss the solar and in situ circumstances of these events and identify several scenarios that may account for their elusive solar signatures. These range from observational limitations (e.g., a coronagraph near Earth may not detect an incoming CME if it is diffuse and not wide enough) to the possibility that there is a class of mass ejections from the Sun that have only weak or hard-to-observe coronal signatures. In particular, some of these sources are only clearly revealed by considering the evolution of coronal structures over longer time intervals than is usually considered. We also review a variety of numerical modelling approaches... 60 pages, 25 figures, 5 tables. Accepted for publication in Space Science Reviews
Space Science Review... arrow_drop_down Space Science ReviewsArticle . 2021Full-Text: http://europepmc.org/articles/PMC8566663Data sources: PubMed CentralSt Andrews Research RepositoryArticle . 2021 . Peer-reviewedData sources: St Andrews Research Repositoryhttps://doi.org/10.48550/arxiv...Article . 2021License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s11214-021-00857-0&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 24 citations 24 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 9visibility views 9 download downloads 4 Powered bymore_vert Space Science Review... arrow_drop_down Space Science ReviewsArticle . 2021Full-Text: http://europepmc.org/articles/PMC8566663Data sources: PubMed CentralSt Andrews Research RepositoryArticle . 2021 . Peer-reviewedData sources: St Andrews Research Repositoryhttps://doi.org/10.48550/arxiv...Article . 2021License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s11214-021-00857-0&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2022 Spain, France, Switzerland, Italy, United Kingdom, FinlandPublisher:Springer Science and Business Media LLC Funded by:AKA | Global health risks relat..., EC | EXHAUSTIONAKA| Global health risks related to atmospheric composition and weather / Consortium: GLORIA ,EC| EXHAUSTIONSchneider, Rochelle; Masselot, Pierre; Vicedo-Cabrera, Ana M; Sera, Francesco; Blangiardo, Marta; Forlani, Chiara; Douros, John; Jorba, Oriol; Adani, Mario; Kouznetsov, Rostislav; Couvidat, Florian; Arteta, Joaquim; Raux, Blandine; Guevara, Marc; Colette, Augustin; Barré, Jérôme; Peuch, Vincent-Henri; Gasparrini, Antonio;Previous studies have reported a decrease in air pollution levels following the enforcement of lockdown measures during the first wave of the COVID-19 pandemic. However, these investigations were mostly based on simple pre-post comparisons using past years as a reference and did not assess the role of different policy interventions. This study contributes to knowledge by quantifying the association between specific lockdown measures and the decrease in NO2, O3, PM2.5, and PM10 levels across 47 European cities. It also estimated the number of avoided deaths during the period. This paper used new modelled data from the Copernicus Atmosphere Monitoring Service (CAMS) to define business-as-usual and lockdown scenarios of daily air pollution trends. This study applies a spatio-temporal Bayesian non-linear mixed effect model to quantify the changes in pollutant concentrations associated with the stringency indices of individual policy measures. The results indicated non-linear associations with a stronger decrease in NO2 compared to PM2.5 and PM10 concentrations at very strict policy levels. Differences across interventions were also identified, specifically the strong effects of actions linked to school/workplace closure, limitations on gatherings, and stay-at-home requirements. Finally, the observed decrease in pollution potentially resulted in hundreds of avoided deaths across Europe. This research had free and open access to all data sources. The work described in this paper has received funding from European Centre for Medium-Range Weather Forecasts (ECMWF) on behalf the European Union through commercial contract Ref. CAMS_95p. Several CAMS Regional Models of the CAMS_50 Service contributed to the present work (CHIMERE, LOTOS-EUROS, MINNI, MOCAGE, MONARCH, SILAM) under CAMS_71 coordination. CAMS_COP066 service provided the lockdown emissions information. O.J. and M.G. thankfully acknowledge the computer resources at Marenostrum and the technical support provided by Barcelona Supercomputing Center (RES-AECT-2020-1-0007). SILAM model runs was also funded by Finnish Academy GLORIA project (No310372). The study was supported by the European Union’s Horizon 2020 Project Exhaustion (Grant ID: 820655). "Article signat per 18 autors/es: Rochelle Schneider, Pierre Masselot, Ana M. Vicedo-Cabrera, Francesco Sera, Marta Blangiardo, Chiara Forlani, John Douros, Oriol Jorba, Mario Adani, Rostislav Kouznetsov, Florian Couvidat, Joaquim Arteta, Blandine Raux, Marc Guevara, Augustin Colette, Jérôme Barré, Vincent-Henri Peuch & Antonio Gasparrini " Peer Reviewed
Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2022Full-Text: http://europepmc.org/articles/PMC8791935Data sources: PubMed CentralFlore (Florence Research Repository)Article . 2022Data sources: Flore (Florence Research Repository)UPCommons. Portal del coneixement obert de la UPCOther literature type . Article . 2022 . Peer-reviewedLicense: CC BYData sources: UPCommons. Portal del coneixement obert de la UPCSpiral - Imperial College Digital RepositoryArticle . 2021License: CC BYData sources: Spiral - Imperial College Digital RepositoryHELDA - Digital Repository of the University of HelsinkiArticle . 2022 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiFlore (Florence Research Repository)Article . 2022Data sources: Flore (Florence Research Repository)Bern Open Repository and Information System (BORIS)Article . 2022 . Peer-reviewedData sources: Bern Open Repository and Information System (BORIS)Recolector de Ciencia Abierta, RECOLECTAArticle . 2022 . Peer-reviewedLicense: CC BYData sources: Recolector de Ciencia Abierta, RECOLECTAadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1038/s41598-021-04277-6&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 16 citations 16 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 68visibility views 68 download downloads 42 Powered bymore_vert Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2022Full-Text: http://europepmc.org/articles/PMC8791935Data sources: PubMed CentralFlore (Florence Research Repository)Article . 2022Data sources: Flore (Florence Research Repository)UPCommons. Portal del coneixement obert de la UPCOther literature type . Article . 2022 . Peer-reviewedLicense: CC BYData sources: UPCommons. Portal del coneixement obert de la UPCSpiral - Imperial College Digital RepositoryArticle . 2021License: CC BYData sources: Spiral - Imperial College Digital RepositoryHELDA - Digital Repository of the University of HelsinkiArticle . 2022 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiFlore (Florence Research Repository)Article . 2022Data sources: Flore (Florence Research Repository)Bern Open Repository and Information System (BORIS)Article . 2022 . Peer-reviewedData sources: Bern Open Repository and Information System (BORIS)Recolector de Ciencia Abierta, RECOLECTAArticle . 2022 . Peer-reviewedLicense: CC BYData sources: Recolector de Ciencia Abierta, RECOLECTAadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1038/s41598-021-04277-6&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Preprint 2012 France, FinlandPublisher:Copernicus GmbH Funded by:EC | NACLIM, EC | THOR, AKA | Heat and freshwater distr...EC| NACLIM ,EC| THOR ,AKA| Heat and freshwater distribution in the Arctic OceanM. Marnela; Bert Rudels; Marie-Noëlle Houssais; Agnieszka Beszczynska-Möller; Patrick B. Eriksson;Abstract. The volume, heat and freshwater transports in the Fram Strait are estimated from geostrophic computations based on summer hydrographic data from 1984, 1997, 2002 and 2004. In these years, in addition to the usually sampled section along 79° N, a section between Greenland and Svalbard was sampled further north. Quasi-closed boxes bounded by the two sections and Greenland and Svalbard can then be formed. Applying conservation constraints on these boxes provides barotropic reference velocities. The net volume flux is southward and varies between 2 and 4 Sv. The recirculation of Atlantic water is about 2 Sv. Heat is lost to the atmosphere and the heat loss from the area between the sections averaged over the four years is about 10 TW. The net heat (temperature) transport is 20 TW northward into the Arctic Ocean, with large interannual differences. The mean net freshwater added between the sections is 40 mSv and the mean freshwater transport southward across 79° N is less than 60 mSv, indicating that most of the liquid freshwater leaving the Arctic Ocean through Fram Strait in summer is derived from sea ice melt in the northern vicinity of the strait. In 1997, 2001 and 2003 meridional sections along 0° longitude were sampled and in 2003 two smaller boxes can be formed, and the recirculation of Atlantic water in the strait is estimated by geostrophic computations and continuity constraints. The recirculation is weaker close to 80° N than close to 78° N, indicating that the recirculation is mainly confined to the south of 80° N. This is supported by the observations in 1997 and 2001, when only the northern part of the meridional section, from 79° N to 80° N, can be computed with the constraints applied. The recirculation is found strongest close to 79° N.
Ocean Science arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2013 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiMémoires en Sciences de l'Information et de la Communication; HAL-CEA; HAL-IRD; HAL-UPMCArticle . 2013License: CC BYFull-Text: https://hal.science/hal-01491089/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/osd-9-3127-2012&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesgold 61 citations 61 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!visibility 19visibility views 19 download downloads 48 Powered bymore_vert Ocean Science arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2013 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiMémoires en Sciences de l'Information et de la Communication; HAL-CEA; HAL-IRD; HAL-UPMCArticle . 2013License: CC BYFull-Text: https://hal.science/hal-01491089/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/osd-9-3127-2012&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2021 Finland, GermanyPublisher:Copernicus GmbH Funded by:UKRI | Improved Loss Modelling o..., AKA | Finnish Centre of Excelle..., EC | SolMAGUKRI| Improved Loss Modelling of SMC Components ,AKA| Finnish Centre of Excellence in Research of Sustainable Space / Consortium: FORESAIL ,EC| SolMAGI. A. Daglis; I. A. Daglis; L. C. Chang; S. Dasso; N. Gopalswamy; O. V. Khabarova; E. Kilpua; R. Lopez; D. Marsh; D. Marsh; K. Matthes; K. Matthes; D. Nandy; D. Nandy; A. Seppälä; K. Shiokawa; R. Thiéblemont; Q. Zong;Abstract. In October 2017, the Scientific Committee on Solar-Terrestrial Physics (SCOSTEP) Bureau established a committee for the design of SCOSTEP's Next Scientific Programme (NSP). The NSP committee members and authors of this paper decided from the very beginning of their deliberations that the predictability of the Sun–Earth System from a few hours to centuries is a timely scientific topic, combining the interests of different topical communities in a relevant way. Accordingly, the NSP was christened PRESTO – PREdictability of the variable Solar–Terrestrial cOupling. This paper presents a detailed account of PRESTO; we show the key milestones of the PRESTO roadmap for the next 5 years, review the current state of the art and discuss future studies required for the most effective development of solar–terrestrial physics.
CORE (RIOXX-UK Aggre... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2021 . Peer-reviewedData sources: HELDA - Digital Repository of the University of Helsinkiadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess Routesgold 10 citations 10 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 6visibility views 6 download downloads 27 Powered bymore_vert CORE (RIOXX-UK Aggre... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2021 . Peer-reviewedData sources: HELDA - Digital Repository of the University of Helsinkiadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Article 2023 Austria, Norway, France, Sweden, Finland, France, NetherlandsPublisher:Copernicus GmbH Funded by:AKA | Towards high resolution a..., EC | QUINCY, EC | VERIFY +5 projectsAKA| Towards high resolution atmospheric data-based greenhouse gas budgets by utilizing advances in supercomputing (GHGSUPER) ,EC| QUINCY ,EC| VERIFY ,EC| VISUALMEDIA ,EC| ESM2025 ,EC| CoCO2 ,EC| METLAKE ,AKA| Integrated Atmospheric and Earth System Science Research Infrastructure / Consortium: INAR RIA. M. R. Petrescu; C. Qiu; M. J. McGrath; P. Peylin; G. P. Peters; P. Ciais; R. L. Thompson; A. Tsuruta; D. Brunner; M. Kuhnert; B. Matthews; P. I. Palmer; O. Tarasova; P. Regnier; R. Lauerwald; D. Bastviken; L. Höglund-Isaksson; W. Winiwarter; W. Winiwarter; G. Etiope; T. Aalto; G. Balsamo; V. Bastrikov; A. Berchet; P. Brockmann; G. Ciotoli; G. Conchedda; M. Crippa; M. Crippa; F. Dentener; C. D. Groot Zwaaftink; D. Guizzardi; D. Günther; J.-M. Haussaire; S. Houweling; G. Janssens-Maenhout; M. Kouyate; A. Leip; A. Leip; A. Leppänen; E. Lugato; M. Maisonnier; A. J. Manning; T. Markkanen; J. McNorton; M. Muntean; G. D. Oreggioni; G. D. Oreggioni; P. K. Patra; L. Perugini; I. Pison; M. T. Raivonen; M. Saunois; A. J. Segers; P. Smith; E. Solazzo; H. Tian; F. N. Tubiello; T. Vesala; T. Vesala; G. R. van der Werf; C. Wilson; C. Wilson; S. Zaehle;Knowledge of the spatial distribution of the fluxes of greenhouse gases (GHGs) and their temporal variability as well as flux attribution to natural and anthropogenic processes is essential to monitoring the progress in mitigating anthropogenic emissions under the Paris Agreement and to inform its global stocktake. This study provides a consolidated synthesis of CH4 and N2O emissions using bottom-up (BU) and top-down (TD) approaches for the European Union and UK (EU27 + UK) and updates earlier syntheses (Petrescu et al., 2020, 2021). The work integrates updated emission inventory data, process-based model results, data-driven sector model results and inverse modeling estimates, and it extends the previous period of 1990-2017 to 2019. BU and TD products are compared with European national greenhouse gas inventories (NGHGIs) reported by parties under the United Nations Framework Convention on Climate Change (UNFCCC) in 2021. Uncertainties in NGHGIs, as reported to the UNFCCC by the EU and its member states, are also included in the synthesis. Variations in estimates produced with other methods, such as atmospheric inversion models (TD) or spatially disaggregated inventory datasets (BU), arise from diverse sources including within-model uncertainty related to parameterization as well as structural differences between models. By comparing NGHGIs with other approaches, the activities included are a key source of bias between estimates, e.g., anthropogenic and natural fluxes, which in atmospheric inversions are sensitive to the prior geospatial distribution of emissions. For CH4 emissions, over the updated 2015-2019 period, which covers a sufficiently robust number of overlapping estimates, and most importantly the NGHGIs, the anthropogenic BU approaches are directly comparable, accounting for mean emissions of 20.5 TgCH(4) yr(-1) (EDGARv6.0, last year 2018) and 18.4 TgCH(4) yr(-1) (GAINS, last year 2015), close to the NGHGI estimates of 17 :5 +/- 2 :1 TgCH(4) yr(-1). TD inversion estimates give higher emission estimates, as they also detect natural emissions. Over the same period, high-resolution regional TD inversions report a mean emission of 34 TgCH(4) yr(-1). Coarser-resolution global-scale TD inversions result in emission estimates of 23 and 24 TgCH(4) yr(-1) inferred from GOSAT and surface (SURF) network atmospheric measurements, respectively. The magnitude of natural peatland and mineral soil emissions from the JSBACH-HIMMELI model, natural rivers, lake and reservoir emissions, geological sources, and biomass burning together could account for the gap between NGHGI and inversions and account for 8 TgCH(4) yr(-1). For N2O emissions, over the 2015-2019 period, both BU products (EDGARv6.0 and GAINS) report a mean value of anthropogenic emissions of 0.9 TgN(2)Oyr(-1), close to the NGHGI data (0 :8 +/- 55% TgN(2)Oyr(-1)). Over the same period, the mean of TD global and regional inversions was 1.4 TgN(2)Oyr(-1) (excluding TOMCAT, which reported no data). The TD and BU comparison method defined in this study can be operationalized for future annual updates for the calculation of CH4 and N2O budgets at the national and EU27 C UK scales. Future comparability will be enhanced with further steps involving analysis at finer temporal resolutions and estimation of emissions over intra-annual timescales, which is of great importance for CH4 and N2O, and may help identify sector contributions to divergence between prior and posterior estimates at the annual and/or inter-annual scale. Even if currently comparison between CH4 and N2O inversion estimates and NGHGIs is highly uncertain because of the large spread in the inversion results, TD inversions inferred from atmospheric observations represent the most independent data against which inventory totals can be compared. With anticipated improvements in atmospheric modeling and observations, as well as modeling of natural fluxes, TD inversions may arguably emerge as the most powerful tool for verifying emission inventories for CH4, N2O and other GHGs. The referenced dataset srelated to figures are visualized at https://doi.org/10.5281/zenodo.7553800 (Petrescu et al., 2023). Funding Agencies|European Commission, Horizon 2020 Framework Programme (VER-IFY) [776810]; CLand Convergence Institute; Environment Research and Technology Development Fund of the Environmental Restoration and Conservation Agency of Japan [JP-MEERF20182002]; H2020 project ESM2025 - Earth System Models for the Future [101003536]; European Research Council (ERC) [725546]; European Union [958927]; Finnish Academy [351311, 345531]; ERC consolidator grant QUINCY [647204]
Earth System Science... arrow_drop_down Earth System Science Data (ESSD); Earth System Science DataArticle . 2023 . Peer-reviewedLicense: CC BYHELDA - Digital Repository of the University of HelsinkiArticle . 2023 . Peer-reviewedData sources: HELDA - Digital Repository of the University of Helsinkiadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 4 citations 4 popularity Top 10% influence Average impulse Average Powered by BIP!more_vert Earth System Science... arrow_drop_down Earth System Science Data (ESSD); Earth System Science DataArticle . 2023 . Peer-reviewedLicense: CC BYHELDA - Digital Repository of the University of HelsinkiArticle . 2023 . Peer-reviewedData sources: HELDA - Digital Repository of the University of Helsinkiadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Article 2006 FinlandPublisher:Copernicus GmbH Funded by:AKA | Natural emissions of halo...AKA| Natural emissions of halogenated VOCs from the European boreal zoneHaapanala, Sami; Rinne, Janne; Pystynen, K.-H; Hellen, H; Hakola, H; Riutta, T;Fluxes of biogenic volatile organic compounds (VOC) and methane were measured above a boreal fen. Vegetation on the fen is dominated by Sphagnum mosses and sedges. A relaxed eddy accumulation (REA) system with dynamic deadband was designed and constructed for the measurements. Methane, C-2-C-6 hydrocarbons and some halogenated hydrocarbons were analysed from the samples by gas chromatographs equipped with FID and ECD. A significant flux of isoprene and methane was detected during the growing seasons. Isoprene emission was found to follow the common isoprene emission algorithm. Average standard emission potential of isoprene was 680 mu g m(-2) h(-1). Fluxes of other non-methane hydrocarbons were below detection limit. Fluxes of biogenic volatile organic compounds (VOC) and methane were measured above a boreal fen. Vegetation on the fen is dominated by Sphagnum mosses and sedges. A relaxed eddy accumulation (REA) system with dynamic deadband was designed and constructed for the measurements. Methane, C-2-C-6 hydrocarbons and some halogenated hydrocarbons were analysed from the samples by gas chromatographs equipped with FID and ECD. A significant flux of isoprene and methane was detected during the growing seasons. Isoprene emission was found to follow the common isoprene emission algorithm. Average standard emission potential of isoprene was 680 mu g m(-2) h(-1). Fluxes of other non-methane hydrocarbons were below detection limit. Fluxes of biogenic volatile organic compounds (VOC) and methane were measured above a boreal fen. Vegetation on the fen is dominated by Sphagnum mosses and sedges. A relaxed eddy accumulation (REA) system with dynamic deadband was designed and constructed for the measurements. Methane, C-2-C-6 hydrocarbons and some halogenated hydrocarbons were analysed from the samples by gas chromatographs equipped with FID and ECD. A significant flux of isoprene and methane was detected during the growing seasons. Isoprene emission was found to follow the common isoprene emission algorithm. Average standard emission potential of isoprene was 680 mu g m(-2) h(-1). Fluxes of other non-methane hydrocarbons were below detection limit. Peer reviewed
Hyper Article en Lig... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2006 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiMémoires en Sciences de l'Information et de la CommunicationArticle . 2006Full-Text: https://hal.science/hal-00297544/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/bg-3-103-2006&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesgold 47 citations 47 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!more_vert Hyper Article en Lig... arrow_drop_down HELDA - Digital Repository of the University of HelsinkiArticle . 2006 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiMémoires en Sciences de l'Information et de la CommunicationArticle . 2006Full-Text: https://hal.science/hal-00297544/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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