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description Publicationkeyboard_double_arrow_right Article 2018Publisher:MDPI AG Funded by:FCT | LA 1, UKRI | National Centre for Nucle...FCT| LA 1 ,UKRI| National Centre for Nuclear Robotics (NCNR)Crompton, Anita J.; Gamage, Kelum A.A.; Bell, Steven; Wilson, Andrew P.; Jenkins, Alex W.; Trivedi, Divyesh;In many field applications where alpha-induced radioluminescence (or so-called UV fluorescence) could potentially be used for stand-off detection of alpha-emitting materials, it may not be possible to create a fully purged gas atmosphere. Hence, an alternative gas delivery method to utilise the radioluminescence enhancing properties of gases has been investigated, with the novel results from this presented herewithin. A solar blind ultraviolet C (UVC) sensor (UVTron R9533, Hamamatsu, Japan) has been used to detect changes in the signal in the UVC wavelength range (180&ndash 280 nm), where gases of Ar, Xe, Ne, N2, Kr, and P-10 were flowed over a 6.95 MBq 210Po source using a narrow diameter pipe close to the source. In comparison with an air atmosphere, there was an increase in signal in all instances, the greatest being the flow of Xe, which in one instance greater than doubled the average counts per second. This increase in signal could prove beneficial in the design of a stand-off alpha detector to detect the very small UVC radioluminescence signals from alpha-emitting materials found in nuclear decommissioning environments.
Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2018Full-Text: http://europepmc.org/articles/PMC6022125Data sources: PubMed CentralSensorsOther literature type . Article . 2018 . Peer-reviewedLicense: CC BYFull-Text: http://www.mdpi.com/1424-8220/18/6/1842/pdfadd 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=10.3390/s18061842&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 11 citations 11 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!download 11download downloads 11 Powered bymore_vert Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2018Full-Text: http://europepmc.org/articles/PMC6022125Data sources: PubMed CentralSensorsOther literature type . Article . 2018 . Peer-reviewedLicense: CC BYFull-Text: http://www.mdpi.com/1424-8220/18/6/1842/pdfadd 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=10.3390/s18061842&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2016 France, France, United States, Finland, FinlandPublisher:Proceedings of the National Academy of Sciences Funded by:FCT | Collaboration in the CLOU..., AKA | ATMOSPHERIC SCIENCES - Pa..., AKA | Measurement of Nano-parti... +23 projectsFCT| Collaboration in the CLOUD experiment ,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 ,AKA| Formation and growth of atmospheric aerosol particles: from molecular to global scale ,SNSF| Investigation of new particle formation in the CLOUD chamber at CERN and the PSI smog chamber ,EC| CLOUD-TRAIN ,EC| CERN-COFUND-2012 ,AKA| Long-term Observation of Ambient Nanoclusters and targeted laboratory experiments ¿ bridging the gap between the particle and gas phase ¿LOAN¿ ,NSF| Coupling of Gas-Phase Radical Oxidation Chemistry and Organic-Aerosol Formation ,EC| NANODYNAMITE ,AKA| Infrastructure of Environmental and Atmospheric Sciences (ATM-Science) ,SNSF| Buffer-Capacity-based Livelihood Resilience to Stressors - an Early Warning Tool and its Application in Makueni County, Kenya ,EC| nanoCAVa ,SNSF| CLOUD ,ANR| Cappa ,SNSF| Edition critique des écrits économiques et de la correspondance scientifique de Sismondi ,FWF| A Multi-Channel Expansion Type Condensation Particle Counter ,NSF| SAVI: CLOUD Virtual Institute and Chemical Physics of Atmospheric New-Particle Formation ,AKA| Formation and growth of atmospheric aerosol particles: from molecular to global scale ,NSF| Mixing Thermodynamics in Atmospherically Relevant Organic Aerosol Systems ,AKA| Computational research chain from quantum chemistry to climate change / Consortium: ComQuaCC ,NSF| Constraining the Role of Gas-Phase Organic Oxidation in New-Particle Formation ,EC| ATMNUCLE ,AKA| Nucleation of particles and ice in the atmosphere: from surface layer to upper troposphere ,SNSF| CLOUD ,UKRI| Developing a framework to test the sensitivity of atmospheric composition simulated by ESMs to changing climate and emissionsHamish Gordon; Kamalika Sengupta; Alexandru Rap; Jonathan Duplissy; Carla Frege; Christina Williamson; Martin Heinritzi; Mario Simon; Chao Yan; Joao Almeida; Jasmin Tröstl; Tuomo Nieminen; Ismael K. Ortega; Robert Wagner; Eimear M. Dunne; Alexey Adamov; António Amorim; Anne-Kathrin Bernhammer; F. Bianchi; Martin Breitenlechner; Sophia Brilke; Xuemeng Chen; J. S. Craven; Antonio Dias; Sebastian Ehrhart; Lukas Fischer; Richard C. Flagan; Alessandro Franchin; Claudia Fuchs; Roberto Guida; Jani Hakala; Christopher R. Hoyle; Tuija Jokinen; Heikki Junninen; Juha Kangasluoma; Jaeseok Kim; Jasper Kirkby; Manuel Krapf; Andreas Kürten; Ari Laaksonen; Katrianne Lehtipalo; Vladimir Makhmutov; Serge Mathot; Ugo Molteni; S. A. Monks; Antti Onnela; Otso Peräkylä; Felix Piel; Tuukka Petäjä; Arnaud P. Praplan; Kirsty J. Pringle; N. A. D. Richards; Matti P. Rissanen; Linda Rondo; Nina Sarnela; Siegfried Schobesberger; Catherine E. Scott; John H. Seinfeld; Sangeeta Sharma; Mikko Sipilä; Gerhard Steiner; Yuri Stozhkov; Frank Stratmann; António Tomé; Annele Virtanen; Alexander L. Vogel; Andrea Christine Wagner; Paul E. Wagner; Ernest Weingartner; Daniela Wimmer; Paul M. Winkler; Penglin Ye; Xuan Zhang; Armin Hansel; Josef Dommen; Neil M. Donahue; Douglas R. Worsnop; Urs Baltensperger; Markku Kulmala; Joachim Curtius; Kenneth S. Carslaw;International audience; The magnitude of aerosol radiative forcing caused by anthropogenic emissions depends on the baseline state of the atmosphere under Q:11 pristine preindustrial conditions. Measurements in the European Organisation for Nuclear Research (CERN) CLOUD chamber show that particle formation in atmospheric conditions can occur solely from Q:12 biogenic vapors. Here, we evaluate the potential effect of this source of particles on preindustrial cloud condensation nucleus (CCN) concentrations and aerosol cloud radiative forcing over the industrial period.Model simulations show that the pure biogenic particle formation mechanism has a much larger relative effect on CCN concentrations in the preindustrial atmosphere than in the present atmosphere because of the lower aerosol concentrations. Consequently, preindustrial cloud albedo is increased more than under present day conditions, and therefore, the cooling forcing of anthropogenic aerosols is reduced. Q:13 The mechanism increases CCN concentrations by 20–100% over a large fraction of the preindustrial lower atmosphere, and the magnitude of annual global mean radiative forcing caused by changes of cloud albedo since 1750 is reduced by 0.22 W m−² (27%) to −0.60 W m−².Model uncertainties, relatively slow formation rates, and limited available ambient measurements make it difficult to establish the significance of a mechanism that has its dominant effect under preindustrial conditions. Our simulations predict more particle formation in the Amazon than is observed. However, the first observation of pure organic nucleation has now been reported for the free troposphere. Given the potentially significant effect on anthropogenic forcing, effort should be made to better understand such naturally driven aerosol processes.
Caltech Authors arrow_drop_down Proceedings of the National Academy of SciencesOther literature type . Article . 2016 . Peer-reviewedadd 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=10.1073/pnas.1602360113&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 103 citations 103 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!visibility 8visibility views 8 download downloads 29 Powered bymore_vert Caltech Authors arrow_drop_down Proceedings of the National Academy of SciencesOther literature type . Article . 2016 . Peer-reviewedadd 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=10.1073/pnas.1602360113&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2015 Germany, United States, United KingdomPublisher:Springer Science and Business Media LLC Funded by:FCT | LA 1, FWF | The role of biogenic orga..., UKRI | RootDetect: Remote Detect...FCT| LA 1 ,FWF| The role of biogenic organic compounds in SOA formation ,UKRI| RootDetect: Remote Detection and Precision Management of Root HealthPawel K. Misztal; C. N. Hewitt; Jürgen Wildt; James D. Blande; Allyson S. D. Eller; Silvano Fares; Drew R. Gentner; Jessica B. Gilman; Martin Graus; Jim Greenberg; Alex Guenther; Armin Hansel; Peter Harley; M. Huang; Kolby J. Jardine; Thomas Karl; Lisa Kaser; Frank N. Keutsch; Astrid Kiendler-Scharr; Einhard Kleist; Brian M. Lerner; Tao Li; John E. Mak; A. C. Nölscher; R. Schnitzhofer; Vinayak Sinha; Brenda Thornton; Carsten Warneke; Frederik Wegener; Christiane Werner; Jonathan Williams; David R. Worton; Noureddine Yassaa; Allen H. Goldstein;AbstractDespite the known biochemical production of a range of aromatic compounds by plants and the presence of benzenoids in floral scents, the emissions of only a few benzenoid compounds have been reported from the biosphere to the atmosphere. Here, using evidence from measurements at aircraft, ecosystem, tree, branch and leaf scales, with complementary isotopic labeling experiments, we show that vegetation (leaves, flowers and phytoplankton) emits a wide variety of benzenoid compounds to the atmosphere at substantial rates. Controlled environment experiments show that plants are able to alter their metabolism to produce and release many benzenoids under stress conditions. The functions of these compounds remain unclear but may be related to chemical communication and protection against stress. We estimate the total global secondary organic aerosol potential from biogenic benzenoids to be similar to that from anthropogenic benzenoids (~10 Tg y−1), pointing to the importance of these natural emissions in atmospheric physics and chemistry.
Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2015Full-Text: http://europepmc.org/articles/PMC4499884Data sources: PubMed CentraleScholarship - University of CaliforniaArticle . 2015Data sources: eScholarship - University of Californiaadd 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/srep12064&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 103 citations 103 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!visibility 2visibility views 2 download downloads 104 Powered bymore_vert Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2015Full-Text: http://europepmc.org/articles/PMC4499884Data sources: PubMed CentraleScholarship - University of CaliforniaArticle . 2015Data sources: eScholarship - University of Californiaadd 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/srep12064&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2019 United Kingdom, United StatesPublisher:Springer Science and Business Media LLC Publicly fundedFunded by:FCT | LA 1FCT| LA 1Christopher M. Clark; Samuel M. Simkin; Edith B. Allen; William D. Bowman; Jayne Belnap; Matthew L. Brooks; Scott L. Collins; Linda H. Geiser; Frank S. Gilliam; Sarah E. Jovan; Linda H. Pardo; Bethany K. Schulz; Carly J. Stevens; Katharine N. Suding; Heather L. Throop; Donald M. Waller;Atmospheric nitrogen and sulfur pollution increased over much of the United States during the twentieth century from fossil fuel combustion and industrial agriculture. Despite recent declines, nitrogen and sulfur deposition continue to affect many plant communities in the United States, although which species are at risk remains uncertain. We used species composition data from >14,000 survey sites across the contiguous United States to evaluate the association between nitrogen and sulfur deposition and the probability of occurrence for 348 herbaceous species. We found that the probability of occurrence for 70% of species was negatively associated with nitrogen or sulfur deposition somewhere in the contiguous United States (56% for N, 51% for S). Of the species, 15% and 51% potentially decreased at all nitrogen and sulfur deposition rates, respectively, suggesting thresholds below the minimum deposition they receive. Although more species potentially increased than decreased with nitrogen deposition, increasers tended to be introduced and decreasers tended to be higher-value native species. More vulnerable species tended to be shorter with lower tissue nitrogen and magnesium. These relationships constitute predictive equations to estimate critical loads. These results demonstrate that many herbaceous species may be at risk from atmospheric deposition and can inform improvements to air quality policies in the United States and globally.
Nature Plants; Lanca... arrow_drop_down eScholarship - University of CaliforniaArticle . 2019Data sources: eScholarship - University of Californiaadd 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/s41477-019-0442-8&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 51 citations 51 popularity Top 10% influence Top 10% impulse Top 1% Powered by BIP!visibility 4visibility views 4 download downloads 66 Powered bymore_vert Nature Plants; Lanca... arrow_drop_down eScholarship - University of CaliforniaArticle . 2019Data sources: eScholarship - University of Californiaadd 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/s41477-019-0442-8&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2016 Austria, United States, Finland, Finland, United States, Germany, FinlandPublisher:Springer Science and Business Media LLC Funded by:SNSF | Investigation of new part..., EC | PEGASOS, SNSF | Molecular Imaging of CNS-... +17 projectsSNSF| Investigation of new particle formation in the CLOUD chamber at CERN and the PSI smog chamber ,EC| PEGASOS ,SNSF| Molecular Imaging of CNS-Immune System Interactions in Multiple Sclerosis ,SNSF| Precise and accurate dating of periods of biotic crisis and recovery in the Earth's history using zircon U-Pb dating of volcanic ash beds. ,FCT| Collaboration in the CLOUD experiment ,NSF| Coupling of Gas-Phase Radical Oxidation Chemistry and Organic-Aerosol Formation ,EC| CLOUD-TRAIN ,SNSF| CLOUD ,EC| NANODYNAMITE ,FWF| A Multi-Channel Expansion Type Condensation Particle Counter ,EC| CLOUD-ITN ,EC| MOCAPAF ,FWF| Nucleation on charged and uncharged nanoclusters ,NSF| Mixing Thermodynamics in Atmospherically Relevant Organic Aerosol Systems ,AKA| ‘Centre of Excellence in Atmospheric Science - From Molecular and Biolocigal processes to The Global Climate’ ,AKA| Nanoaerosol synthesis for bridging laboratory and field investigations of new particle formation and growth ,AKA| Nucleation of particles and ice in the atmosphere: from surface layer to upper troposphere ,EC| ATMOGAIN ,EC| nanoCAVa ,EC| ATMNUCLEKatrianne Lehtipalo; Linda Rondo; Jenni Kontkanen; Siegfried Schobesberger; Tuija Jokinen; Nina Sarnela; Andreas Kürten; Sebastian Ehrhart; Alessandro Franchin; Tuomo Nieminen; Francesco Riccobono; Mikko Sipilä; Taina Yli-Juuti; Jonathan Duplissy; Alexey Adamov; Lars Ahlm; Joao Almeida; António Amorim; F. Bianchi; Martin Breitenlechner; Josef Dommen; Andrew J. Downard; Eimear M. Dunne; Richard C. Flagan; Roberto Guida; Jani Hakala; Armin Hansel; Werner Jud; Juha Kangasluoma; Veli-Matti Kerminen; Helmi Keskinen; Jaeseok Kim; Jasper Kirkby; Agnieszka Kupc; Oona Kupiainen-Määttä; Ari Laaksonen; Michael J. Lawler; Markus Leiminger; Serge Mathot; Tinja Olenius; Ismael K. Ortega; Antti Onnela; Tuukka Petäjä; Arnaud P. Praplan; Matti P. Rissanen; Taina Ruuskanen; Filipe Duarte Santos; Simon Schallhart; R. Schnitzhofer; Mario Simon; James N. Smith; Jasmin Tröstl; Georgios Tsagkogeorgas; António Tomé; Petri Vaattovaara; Hanna Vehkamäki; Aron Vrtala; Paul E. Wagner; Christina Williamson; Daniela Wimmer; Paul M. Winkler; Annele Virtanen; Neil M. Donahue; Kenneth S. Carslaw; Urs Baltensperger; Ilona Riipinen; Joachim Curtius; Douglas R. Worsnop; Markku Kulmala;The growth of freshly formed aerosol particles can be the bottleneck in their survival to cloud condensation nuclei. It is therefore crucial to understand how particles grow in the atmosphere. Insufficient experimental data has impeded a profound understanding of nano-particle growth under atmospheric conditions. Here we study nano-particle growth in the CLOUD (Cosmics Leaving OUtdoors Droplets) chamber, starting from the formation of molecular clusters. We present measured growth rates at sub-3 nm sizes with different atmospherically relevant concentrations of sulphuric acid, water, ammonia and dimethylamine. We find that atmospheric ions and small acid-base clusters, which are not generally accounted for in the measurement of sulphuric acid vapour, can participate in the growth process, leading to enhanced growth rates. The availability of compounds capable of stabilizing sulphuric acid clusters governs the magnitude of these effects and thus the exact growth mechanism. We bring these observations into a coherent framework and discuss their significance in the atmosphere. The growth rates of freshly formed aerosol particles influence what fraction of these can reach sizes large enough to affect cloud formation and climate. Here, the authors show that the nano-particle growth in a sulphuric acid containing system can be enhanced by the presence of ions or small acid-base clusters.
Permanent Hosting, A... arrow_drop_down Permanent Hosting, Archiving and Indexing of Digital Resources and Assets; Nature CommunicationsOther literature type . Article . 2016 . Peer-reviewedLicense: CC BYEurope PubMed CentralArticle . 2016Full-Text: http://europepmc.org/articles/PMC4876472Data sources: PubMed CentralHELDA - Digital Repository of the University of HelsinkiArticle . 2016 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiHochschulschriftenserver - Universität Frankfurt am MainArticle . 2016Data sources: Hochschulschriftenserver - Universität Frankfurt am MaineScholarship - University of CaliforniaArticle . 2016Data sources: eScholarship - University of CaliforniaeScholarship - University of CaliforniaArticle . 2016Data sources: eScholarship - University of Californiaadd 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/ncomms11594&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 126 citations 126 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!visibility 5visibility views 5 download downloads 6 Powered bymore_vert Permanent Hosting, A... arrow_drop_down Permanent Hosting, Archiving and Indexing of Digital Resources and Assets; Nature CommunicationsOther literature type . Article . 2016 . Peer-reviewedLicense: CC BYEurope PubMed CentralArticle . 2016Full-Text: http://europepmc.org/articles/PMC4876472Data sources: PubMed CentralHELDA - Digital Repository of the University of HelsinkiArticle . 2016 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiHochschulschriftenserver - Universität Frankfurt am MainArticle . 2016Data sources: Hochschulschriftenserver - Universität Frankfurt am MaineScholarship - University of CaliforniaArticle . 2016Data sources: eScholarship - University of CaliforniaeScholarship - University of CaliforniaArticle . 2016Data sources: eScholarship - University of Californiaadd 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/ncomms11594&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2012 Australia, AustriaPublisher:Public Library of Science (PLoS) Funded by:NSF | The Role of Resource Lega..., FCT | AMOX - Relative importanc..., NSF | Collaborative Research: B... +2 projectsNSF| The Role of Resource Legacy on Contemporary Linkages Between Biodiversity and Ecosystem Processes in a Cold Desert Ecosystem: The McMurdo Dry Valley LTER Program ,FCT| AMOX - Relative importance of archaeal and bacterial ammonia oxidizers in estuarine ecosystem function: role of environmental controls ,NSF| Collaborative Research: Biogeochemistry of Cyanobactrial Mats and Hyporheic Zone Microbes in McMurdo Dry Valley Glacial Meltwater Streams ,FCT| SFRH/BPD/76989/2011 ,NSF| Increased Connectivity in a Polar Desert Resulting from Climate Warming: McMurdo Dry Valley LTER ProgramCatarina Magalhães; Mark I. Stevens; S. Craig Cary; Becky A. Ball; Bryan C. Storey; Diana H. Wall; Roman Türk; Ulrike Ruprecht;Multitrophic communities that maintain the functionality of the extreme Antarctic terrestrial ecosystems, while the simplest of any natural community, are still challenging our knowledge about the limits to life on earth. In this study, we describe and interpret the linkage between the diversity of different trophic level communities to the geological morphology and soil geochemistry in the remote Transantarctic Mountains (Darwin Mountains, 80S). We examined the distribution and diversity of biota (bacteria, cyanobacteria, lichens, algae, invertebrates) with respect to elevation, age of glacial drift sheets, and soil physicochemistry. Results showed an abiotic spatial gradient with respect to the diversity of the organisms across different trophic levels. More complex communities, in terms of trophic level diversity, were related to the weakly developed younger drifts (Hatherton and Britannia) with higher soil C/N ratio and lower total soluble salts content (thus lower conductivity). Our results indicate that an increase of ion concentration from younger to older drift regions drives a succession of complex to more simple communities, in terms of number of trophic levels and diversity within each group of organisms analysed. This study revealed that integrating diversity across multi-trophic levels of biotic communities with abiotic spatial heterogeneity and geological history is fundamental to understand environmental constraints influencing biological distribution in Antarctic soil ecosystems. (VLID)1649015
Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2012Full-Text: http://europepmc.org/articles/PMC3446939Data sources: PubMed Centraladd 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=10.1371/journal.pone.0044578&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 60 citations 60 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!more_vert Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2012Full-Text: http://europepmc.org/articles/PMC3446939Data sources: PubMed Centraladd 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=10.1371/journal.pone.0044578&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2018 United KingdomPublisher:Springer Science and Business Media LLC Funded by:FCT | LA 1FCT| LA 1Rebecca Kate Burns; Peter M. Wynn; Philip A. Barker; Niall P. McNamara; Simon Oakley; Nick Ostle; Andrew W. Stott; Hugh Tuffen; Zheng Zhou; Fiona S. Tweed; Aaron Chesler; Micha Stuart;AbstractThe base of glaciers and ice sheets provide environments suitable for the production of methane. High pressure conditions beneath the impermeable ‘cap’ of overlying ice promote entrapment of methane reserves that can be released to the atmosphere during ice thinning and meltwater evacuation. However, contemporary glaciers and ice sheets are rarely accounted for as methane contributors through field measurements. Here, we present direct field-based evidence of methane production and release from beneath the Icelandic glacier Sólheimajökull, where geothermal activity creates sub-oxic conditions suited to methane production and preservation along the meltwater flow path. Methane production at the glacier bed (48 tonnes per day, or 39 mM CH4 m−2 day−1), and evasion to the atmosphere from the proglacial stream (41 tonnes per day, or 32 M CH4 m−2 day−1) indicates considerable production and release to the atmosphere during the summer melt season. Isotopic signatures (−60.2‰ to −7.6‰ for δ13Cch4 and −324.3‰ to +161.1‰ for Dch4), support a biogenic signature within waters emerging from the subglacial environment. Temperate glacial methane production and release may thus be a significant and hitherto unresolved contributor of a potent greenhouse gas to the atmosphere.
Scientific Reports; ... arrow_drop_down Europe PubMed CentralArticle . 2018Full-Text: http://europepmc.org/articles/PMC6244297Data sources: PubMed Centraladd 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/s41598-018-35253-2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 17 citations 17 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 15visibility views 15 download downloads 82 Powered bymore_vert Scientific Reports; ... arrow_drop_down Europe PubMed CentralArticle . 2018Full-Text: http://europepmc.org/articles/PMC6244297Data sources: PubMed Centraladd 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/s41598-018-35253-2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2020 United States, Brazil, SpainPublisher:Proceedings of the National Academy of Sciences Funded by:NSF | Collaborative Research: P..., FCT | D4NSF| Collaborative Research: P2C2--Cave Climate Histories of East/Central Asia: Deeper in Time, Wider Geographically, New Analytical Approaches, and New Tests of Climate Interpretations ,FCT| D4Hai Cheng; Haiwei Zhang; Christoph Spötl; Jonathan Baker; Ashish Sinha; Hanying Li; Miguel Bartolomé; Ana Moreno; Gayatri Kathayat; Jingyao Zhao; Xiyu Dong; Youwei Li; Youfeng Ning; Xue Jia; Baoyun Zong; Yassine Ait Brahim; Carlos Pérez-Mejías; Yanjun Cai; Valdir F. Novello; Francisco W. Cruz; Jeffrey P. Severinghaus; Zhisheng An; R. Lawrence Edwards;handle: 10261/240073
pmc: PMC7519346 , PMC7848538 , PMC7848605
The Younger Dryas (YD), arguably the most widely studied millennialscale extreme climate event, was characterized by diverse hydroclimate shifts globally and severe cooling at high northern latitudes that abruptly punctuated the warming trend from the last glacial to the present interglacial. To date, a precise understanding of its trigger, propagation, and termination remains elusive. Here, we present speleothem oxygen-isotope data that, in concert with other proxy records, allow us to quantify the timing of the YD onset and termination at an unprecedented subcentennial temporal precision across the North Atlantic, Asian Monsoon-Westerlies, and South American Monsoon regions. Our analysis suggests that the onsets of YD in the North Atlantic (12,870 ± 30 B.P.) and the Asian Monsoon- Westerlies region are essentially synchronous within a few decades and lead the onset in Antarctica, implying a north-to-south climate signal propagation via both atmospheric (decadal-time scale) and oceanic (centennial-time scale) processes, similar to the Dansgaard- Oeschger events during the last glacial period. In contrast, the YD termination may have started first in Antarctica at ~11,900 B.P., or perhaps even earlier in the western tropical Pacific, followed by the North Atlantic between ~11,700 ± 40 and 11,610 ± 40 B.P. These observations suggest that the initial YD termination might have originated in the Southern Hemisphere and/or the tropical Pacific, indicating a Southern Hemisphere/tropics to North Atlantic-Asian Monsoon-Westerlies directionality of climatic recovery. This work was supported by grants from National Nature Science Foundation of China (NSFC 41888101 and 41731174 to H.C.) and US NSF Grant (1702816 to R.L.E. and H.C.)
Proceedings of the N... arrow_drop_down Proceedings of the National Academy of SciencesArticle . 2020Full-Text: http://europepmc.org/articles/PMC7519346Data sources: PubMed CentraleScholarship - University of CaliforniaArticle . 2020Data sources: eScholarship - University of CaliforniaRepositório Institucional da USP (Biblioteca Digital da Produção Intelectual) - Universidade de São Paulo (USP); Proceedings of the National Academy of SciencesArticle . 2020 . Peer-reviewedLicense: CC BYRecolector de Ciencia Abierta, RECOLECTAArticle . 2020Data sources: Recolector de Ciencia Abierta, RECOLECTAProceedings of the National Academy of SciencesArticle . 2021 . Peer-reviewedData sources: CrossrefProceedings of the National Academy of SciencesArticle . 2021 . Peer-reviewedData 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.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 107 citations 107 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!visibility 29visibility views 29 download downloads 64 Powered bymore_vert Proceedings of the N... arrow_drop_down Proceedings of the National Academy of SciencesArticle . 2020Full-Text: http://europepmc.org/articles/PMC7519346Data sources: PubMed CentraleScholarship - University of CaliforniaArticle . 2020Data sources: eScholarship - University of CaliforniaRepositório Institucional da USP (Biblioteca Digital da Produção Intelectual) - Universidade de São Paulo (USP); Proceedings of the National Academy of SciencesArticle . 2020 . Peer-reviewedLicense: CC BYRecolector de Ciencia Abierta, RECOLECTAArticle . 2020Data sources: Recolector de Ciencia Abierta, RECOLECTAProceedings of the National Academy of SciencesArticle . 2021 . Peer-reviewedData sources: CrossrefProceedings of the National Academy of SciencesArticle . 2021 . Peer-reviewedData 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=10.1073/pnas.2007869117&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2019 GermanyPublisher:The Royal Society Funded by:UKRI | RootDetect: Remote Detect..., FCT | LA 1, UKRI | Space and Planetary Resea... +2 projectsUKRI| RootDetect: Remote Detection and Precision Management of Root Health ,FCT| LA 1 ,UKRI| Space and Planetary Research at Lancaster University ,UKRI| A Consolidated Grant Proposal for Solar System Research at the University of Leicester (2016-2019) ,UKRI| ASTIlluminating Solar-Planetary InteractionsStallard, Tom S.; Baines, Kevin H.; Melin, Henrik; Bradley, Thomas J.; Moore, Luke; O'Donoghue, James; Miller, Steve; Chowdhury, Mohammad N.; Badman, Sarah V.; Allison, Hayley J.; Roussos, Elias;Accepted: 2019-06-19 資料番号: SA1190089000 著者人数: 11名
Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2019Full-Text: http://europepmc.org/articles/PMC6710899Data sources: PubMed CentralGFZ German Research Centre for GeosciencesArticle . 2019License: CC BYData sources: GFZ German Research Centre for GeosciencesPhilosophical Transactions of the Royal Society A Mathematical Physical and Engineering SciencesArticleLicense: CC BYData sources: UnpayWallPhilosophical Transactions of the Royal Society A Mathematical Physical and Engineering SciencesArticle . 2019 . Peer-reviewedLicense: Royal Society Data Sharing and AccessibilityData sources: CrossrefPhilosophical Transactions of the Royal Society A Mathematical Physical and Engineering SciencesArticle . 2019Data sources: JAIROadd 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=10.1098/rsta.2018.0405&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routeshybrid 13 citations 13 popularity Top 10% influence Average impulse Top 10% Powered by BIP!more_vert Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2019Full-Text: http://europepmc.org/articles/PMC6710899Data sources: PubMed CentralGFZ German Research Centre for GeosciencesArticle . 2019License: CC BYData sources: GFZ German Research Centre for GeosciencesPhilosophical Transactions of the Royal Society A Mathematical Physical and Engineering SciencesArticleLicense: CC BYData sources: UnpayWallPhilosophical Transactions of the Royal Society A Mathematical Physical and Engineering SciencesArticle . 2019 . Peer-reviewedLicense: Royal Society Data Sharing and AccessibilityData sources: CrossrefPhilosophical Transactions of the Royal Society A Mathematical Physical and Engineering SciencesArticle . 2019Data sources: JAIROadd 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=10.1098/rsta.2018.0405&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2019 Portugal, Switzerland, SpainPublisher:American Geophysical Union (AGU) Funded by:FCT | Centre of Marine Sciences, UKRI | IODP Survey of the "..., SNSF | TEMPORAL RELATIONSHIPS AM...FCT| Centre of Marine Sciences ,UKRI| IODP Survey of the "Shackleton sites" on the Southwest Iberian Margin ,SNSF| TEMPORAL RELATIONSHIPS AMONG PROXY SIGNALS IN MARINE SEDIMENTS (TRAMPOLINE)Blanca Ausín; Negar Haghipour; Lukas Wacker; Antje H L Voelker; David A. Hodell; Clayton R. Magill; Nathan Looser; Stefano M. Bernasconi; Timothy I. Eglinton;This study identifies temporal biases in the radiocarbon ages of the planktonic foraminifera species Globigerina bulloides and Globigerinoides ruber (white) in a sediment core from the SW Iberian margin (so‐called Shackleton site). Leaching of the outer shell and measurement of the radiocarbon content of both the leachate and leached sample enabled us to identify surface contamination of the tests and its impact on their 14C ages. Incorporation of younger radiocarbon on the outer shell affected both species and had a larger impact downcore. Interspecies comparison of the 14C ages of the leached samples reveal systematic offsets with 14C ages for G. ruber being younger than G. bulloides ages during the last deglaciation and part of the Early and mid‐Holocene. The greatest offsets (up to 1,030 years) were found during Heinrich Stadial 1, the Younger Dryas, and part of the Holocene. The potential factors differentially affecting these two planktonic species were assessed by complementary 14C, oxygen and carbon isotopes, and species abundance determinations. The coupled effect of bioturbation with changes in the abundance of G. ruber is invoked to account for the large age offsets. Our results highlight that 14C ages of planktonic foraminifera might be largely compromised even in settings characterized by high sediment accumulation rates. Thus, a careful assessment of potential temporal biases must be performed prior to using 14C ages for paleoclimate investigations or radiocarbon calibrations (e.g., marine calibration curve Marine13, Reimer et al., 2013 Paleoceanography and Paleoclimatology, 34 (1) ISSN:2572-4517 ISSN:2572-4525
Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2019Full-Text: http://europepmc.org/articles/PMC6392128Data sources: PubMed CentralPaleoceanography and PaleoclimatologyArticle . 2019 . Peer-reviewedLicense: CC BY NC NDData sources: CrossrefSapientia Repositório da Universidade do AlgarveArticle . 2019License: CC BYData sources: Sapientia Repositório da Universidade do Algarveadd 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=10.1029/2018pa003490&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 15 citations 15 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 131visibility views 131 download downloads 108 Powered bymore_vert Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2019Full-Text: http://europepmc.org/articles/PMC6392128Data sources: PubMed CentralPaleoceanography and PaleoclimatologyArticle . 2019 . Peer-reviewedLicense: CC BY NC NDData sources: CrossrefSapientia Repositório da Universidade do AlgarveArticle . 2019License: CC BYData sources: Sapientia Repositório da Universidade do Algarveadd 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=10.1029/2018pa003490&type=result"></script>'); --> </script>
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description Publicationkeyboard_double_arrow_right Article 2018Publisher:MDPI AG Funded by:FCT | LA 1, UKRI | National Centre for Nucle...FCT| LA 1 ,UKRI| National Centre for Nuclear Robotics (NCNR)Crompton, Anita J.; Gamage, Kelum A.A.; Bell, Steven; Wilson, Andrew P.; Jenkins, Alex W.; Trivedi, Divyesh;In many field applications where alpha-induced radioluminescence (or so-called UV fluorescence) could potentially be used for stand-off detection of alpha-emitting materials, it may not be possible to create a fully purged gas atmosphere. Hence, an alternative gas delivery method to utilise the radioluminescence enhancing properties of gases has been investigated, with the novel results from this presented herewithin. A solar blind ultraviolet C (UVC) sensor (UVTron R9533, Hamamatsu, Japan) has been used to detect changes in the signal in the UVC wavelength range (180&ndash 280 nm), where gases of Ar, Xe, Ne, N2, Kr, and P-10 were flowed over a 6.95 MBq 210Po source using a narrow diameter pipe close to the source. In comparison with an air atmosphere, there was an increase in signal in all instances, the greatest being the flow of Xe, which in one instance greater than doubled the average counts per second. This increase in signal could prove beneficial in the design of a stand-off alpha detector to detect the very small UVC radioluminescence signals from alpha-emitting materials found in nuclear decommissioning environments.
Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2018Full-Text: http://europepmc.org/articles/PMC6022125Data sources: PubMed CentralSensorsOther literature type . Article . 2018 . Peer-reviewedLicense: CC BYFull-Text: http://www.mdpi.com/1424-8220/18/6/1842/pdfadd 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=10.3390/s18061842&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 11 citations 11 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!download 11download downloads 11 Powered bymore_vert Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2018Full-Text: http://europepmc.org/articles/PMC6022125Data sources: PubMed CentralSensorsOther literature type . Article . 2018 . Peer-reviewedLicense: CC BYFull-Text: http://www.mdpi.com/1424-8220/18/6/1842/pdfadd 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=10.3390/s18061842&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2016 France, France, United States, Finland, FinlandPublisher:Proceedings of the National Academy of Sciences Funded by:FCT | Collaboration in the CLOU..., AKA | ATMOSPHERIC SCIENCES - Pa..., AKA | Measurement of Nano-parti... +23 projectsFCT| Collaboration in the CLOUD experiment ,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 ,AKA| Formation and growth of atmospheric aerosol particles: from molecular to global scale ,SNSF| Investigation of new particle formation in the CLOUD chamber at CERN and the PSI smog chamber ,EC| CLOUD-TRAIN ,EC| CERN-COFUND-2012 ,AKA| Long-term Observation of Ambient Nanoclusters and targeted laboratory experiments ¿ bridging the gap between the particle and gas phase ¿LOAN¿ ,NSF| Coupling of Gas-Phase Radical Oxidation Chemistry and Organic-Aerosol Formation ,EC| NANODYNAMITE ,AKA| Infrastructure of Environmental and Atmospheric Sciences (ATM-Science) ,SNSF| Buffer-Capacity-based Livelihood Resilience to Stressors - an Early Warning Tool and its Application in Makueni County, Kenya ,EC| nanoCAVa ,SNSF| CLOUD ,ANR| Cappa ,SNSF| Edition critique des écrits économiques et de la correspondance scientifique de Sismondi ,FWF| A Multi-Channel Expansion Type Condensation Particle Counter ,NSF| SAVI: CLOUD Virtual Institute and Chemical Physics of Atmospheric New-Particle Formation ,AKA| Formation and growth of atmospheric aerosol particles: from molecular to global scale ,NSF| Mixing Thermodynamics in Atmospherically Relevant Organic Aerosol Systems ,AKA| Computational research chain from quantum chemistry to climate change / Consortium: ComQuaCC ,NSF| Constraining the Role of Gas-Phase Organic Oxidation in New-Particle Formation ,EC| ATMNUCLE ,AKA| Nucleation of particles and ice in the atmosphere: from surface layer to upper troposphere ,SNSF| CLOUD ,UKRI| Developing a framework to test the sensitivity of atmospheric composition simulated by ESMs to changing climate and emissionsHamish Gordon; Kamalika Sengupta; Alexandru Rap; Jonathan Duplissy; Carla Frege; Christina Williamson; Martin Heinritzi; Mario Simon; Chao Yan; Joao Almeida; Jasmin Tröstl; Tuomo Nieminen; Ismael K. Ortega; Robert Wagner; Eimear M. Dunne; Alexey Adamov; António Amorim; Anne-Kathrin Bernhammer; F. Bianchi; Martin Breitenlechner; Sophia Brilke; Xuemeng Chen; J. S. Craven; Antonio Dias; Sebastian Ehrhart; Lukas Fischer; Richard C. Flagan; Alessandro Franchin; Claudia Fuchs; Roberto Guida; Jani Hakala; Christopher R. Hoyle; Tuija Jokinen; Heikki Junninen; Juha Kangasluoma; Jaeseok Kim; Jasper Kirkby; Manuel Krapf; Andreas Kürten; Ari Laaksonen; Katrianne Lehtipalo; Vladimir Makhmutov; Serge Mathot; Ugo Molteni; S. A. Monks; Antti Onnela; Otso Peräkylä; Felix Piel; Tuukka Petäjä; Arnaud P. Praplan; Kirsty J. Pringle; N. A. D. Richards; Matti P. Rissanen; Linda Rondo; Nina Sarnela; Siegfried Schobesberger; Catherine E. Scott; John H. Seinfeld; Sangeeta Sharma; Mikko Sipilä; Gerhard Steiner; Yuri Stozhkov; Frank Stratmann; António Tomé; Annele Virtanen; Alexander L. Vogel; Andrea Christine Wagner; Paul E. Wagner; Ernest Weingartner; Daniela Wimmer; Paul M. Winkler; Penglin Ye; Xuan Zhang; Armin Hansel; Josef Dommen; Neil M. Donahue; Douglas R. Worsnop; Urs Baltensperger; Markku Kulmala; Joachim Curtius; Kenneth S. Carslaw;International audience; The magnitude of aerosol radiative forcing caused by anthropogenic emissions depends on the baseline state of the atmosphere under Q:11 pristine preindustrial conditions. Measurements in the European Organisation for Nuclear Research (CERN) CLOUD chamber show that particle formation in atmospheric conditions can occur solely from Q:12 biogenic vapors. Here, we evaluate the potential effect of this source of particles on preindustrial cloud condensation nucleus (CCN) concentrations and aerosol cloud radiative forcing over the industrial period.Model simulations show that the pure biogenic particle formation mechanism has a much larger relative effect on CCN concentrations in the preindustrial atmosphere than in the present atmosphere because of the lower aerosol concentrations. Consequently, preindustrial cloud albedo is increased more than under present day conditions, and therefore, the cooling forcing of anthropogenic aerosols is reduced. Q:13 The mechanism increases CCN concentrations by 20–100% over a large fraction of the preindustrial lower atmosphere, and the magnitude of annual global mean radiative forcing caused by changes of cloud albedo since 1750 is reduced by 0.22 W m−² (27%) to −0.60 W m−².Model uncertainties, relatively slow formation rates, and limited available ambient measurements make it difficult to establish the significance of a mechanism that has its dominant effect under preindustrial conditions. Our simulations predict more particle formation in the Amazon than is observed. However, the first observation of pure organic nucleation has now been reported for the free troposphere. Given the potentially significant effect on anthropogenic forcing, effort should be made to better understand such naturally driven aerosol processes.
Caltech Authors arrow_drop_down Proceedings of the National Academy of SciencesOther literature type . Article . 2016 . Peer-reviewedadd 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=10.1073/pnas.1602360113&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 103 citations 103 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!visibility 8visibility views 8 download downloads 29 Powered bymore_vert Caltech Authors arrow_drop_down Proceedings of the National Academy of SciencesOther literature type . Article . 2016 . Peer-reviewedadd 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=10.1073/pnas.1602360113&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2015 Germany, United States, United KingdomPublisher:Springer Science and Business Media LLC Funded by:FCT | LA 1, FWF | The role of biogenic orga..., UKRI | RootDetect: Remote Detect...FCT| LA 1 ,FWF| The role of biogenic organic compounds in SOA formation ,UKRI| RootDetect: Remote Detection and Precision Management of Root HealthPawel K. Misztal; C. N. Hewitt; Jürgen Wildt; James D. Blande; Allyson S. D. Eller; Silvano Fares; Drew R. Gentner; Jessica B. Gilman; Martin Graus; Jim Greenberg; Alex Guenther; Armin Hansel; Peter Harley; M. Huang; Kolby J. Jardine; Thomas Karl; Lisa Kaser; Frank N. Keutsch; Astrid Kiendler-Scharr; Einhard Kleist; Brian M. Lerner; Tao Li; John E. Mak; A. C. Nölscher; R. Schnitzhofer; Vinayak Sinha; Brenda Thornton; Carsten Warneke; Frederik Wegener; Christiane Werner; Jonathan Williams; David R. Worton; Noureddine Yassaa; Allen H. Goldstein;AbstractDespite the known biochemical production of a range of aromatic compounds by plants and the presence of benzenoids in floral scents, the emissions of only a few benzenoid compounds have been reported from the biosphere to the atmosphere. Here, using evidence from measurements at aircraft, ecosystem, tree, branch and leaf scales, with complementary isotopic labeling experiments, we show that vegetation (leaves, flowers and phytoplankton) emits a wide variety of benzenoid compounds to the atmosphere at substantial rates. Controlled environment experiments show that plants are able to alter their metabolism to produce and release many benzenoids under stress conditions. The functions of these compounds remain unclear but may be related to chemical communication and protection against stress. We estimate the total global secondary organic aerosol potential from biogenic benzenoids to be similar to that from anthropogenic benzenoids (~10 Tg y−1), pointing to the importance of these natural emissions in atmospheric physics and chemistry.
Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2015Full-Text: http://europepmc.org/articles/PMC4499884Data sources: PubMed CentraleScholarship - University of CaliforniaArticle . 2015Data sources: eScholarship - University of Californiaadd 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/srep12064&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 103 citations 103 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!visibility 2visibility views 2 download downloads 104 Powered bymore_vert Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2015Full-Text: http://europepmc.org/articles/PMC4499884Data sources: PubMed CentraleScholarship - University of CaliforniaArticle . 2015Data sources: eScholarship - University of Californiaadd 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/srep12064&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2019 United Kingdom, United StatesPublisher:Springer Science and Business Media LLC Publicly fundedFunded by:FCT | LA 1FCT| LA 1Christopher M. Clark; Samuel M. Simkin; Edith B. Allen; William D. Bowman; Jayne Belnap; Matthew L. Brooks; Scott L. Collins; Linda H. Geiser; Frank S. Gilliam; Sarah E. Jovan; Linda H. Pardo; Bethany K. Schulz; Carly J. Stevens; Katharine N. Suding; Heather L. Throop; Donald M. Waller;Atmospheric nitrogen and sulfur pollution increased over much of the United States during the twentieth century from fossil fuel combustion and industrial agriculture. Despite recent declines, nitrogen and sulfur deposition continue to affect many plant communities in the United States, although which species are at risk remains uncertain. We used species composition data from >14,000 survey sites across the contiguous United States to evaluate the association between nitrogen and sulfur deposition and the probability of occurrence for 348 herbaceous species. We found that the probability of occurrence for 70% of species was negatively associated with nitrogen or sulfur deposition somewhere in the contiguous United States (56% for N, 51% for S). Of the species, 15% and 51% potentially decreased at all nitrogen and sulfur deposition rates, respectively, suggesting thresholds below the minimum deposition they receive. Although more species potentially increased than decreased with nitrogen deposition, increasers tended to be introduced and decreasers tended to be higher-value native species. More vulnerable species tended to be shorter with lower tissue nitrogen and magnesium. These relationships constitute predictive equations to estimate critical loads. These results demonstrate that many herbaceous species may be at risk from atmospheric deposition and can inform improvements to air quality policies in the United States and globally.
Nature Plants; Lanca... arrow_drop_down eScholarship - University of CaliforniaArticle . 2019Data sources: eScholarship - University of Californiaadd 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/s41477-019-0442-8&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 51 citations 51 popularity Top 10% influence Top 10% impulse Top 1% Powered by BIP!visibility 4visibility views 4 download downloads 66 Powered bymore_vert Nature Plants; Lanca... arrow_drop_down eScholarship - University of CaliforniaArticle . 2019Data sources: eScholarship - University of Californiaadd 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/s41477-019-0442-8&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2016 Austria, United States, Finland, Finland, United States, Germany, FinlandPublisher:Springer Science and Business Media LLC Funded by:SNSF | Investigation of new part..., EC | PEGASOS, SNSF | Molecular Imaging of CNS-... +17 projectsSNSF| Investigation of new particle formation in the CLOUD chamber at CERN and the PSI smog chamber ,EC| PEGASOS ,SNSF| Molecular Imaging of CNS-Immune System Interactions in Multiple Sclerosis ,SNSF| Precise and accurate dating of periods of biotic crisis and recovery in the Earth's history using zircon U-Pb dating of volcanic ash beds. ,FCT| Collaboration in the CLOUD experiment ,NSF| Coupling of Gas-Phase Radical Oxidation Chemistry and Organic-Aerosol Formation ,EC| CLOUD-TRAIN ,SNSF| CLOUD ,EC| NANODYNAMITE ,FWF| A Multi-Channel Expansion Type Condensation Particle Counter ,EC| CLOUD-ITN ,EC| MOCAPAF ,FWF| Nucleation on charged and uncharged nanoclusters ,NSF| Mixing Thermodynamics in Atmospherically Relevant Organic Aerosol Systems ,AKA| ‘Centre of Excellence in Atmospheric Science - From Molecular and Biolocigal processes to The Global Climate’ ,AKA| Nanoaerosol synthesis for bridging laboratory and field investigations of new particle formation and growth ,AKA| Nucleation of particles and ice in the atmosphere: from surface layer to upper troposphere ,EC| ATMOGAIN ,EC| nanoCAVa ,EC| ATMNUCLEKatrianne Lehtipalo; Linda Rondo; Jenni Kontkanen; Siegfried Schobesberger; Tuija Jokinen; Nina Sarnela; Andreas Kürten; Sebastian Ehrhart; Alessandro Franchin; Tuomo Nieminen; Francesco Riccobono; Mikko Sipilä; Taina Yli-Juuti; Jonathan Duplissy; Alexey Adamov; Lars Ahlm; Joao Almeida; António Amorim; F. Bianchi; Martin Breitenlechner; Josef Dommen; Andrew J. Downard; Eimear M. Dunne; Richard C. Flagan; Roberto Guida; Jani Hakala; Armin Hansel; Werner Jud; Juha Kangasluoma; Veli-Matti Kerminen; Helmi Keskinen; Jaeseok Kim; Jasper Kirkby; Agnieszka Kupc; Oona Kupiainen-Määttä; Ari Laaksonen; Michael J. Lawler; Markus Leiminger; Serge Mathot; Tinja Olenius; Ismael K. Ortega; Antti Onnela; Tuukka Petäjä; Arnaud P. Praplan; Matti P. Rissanen; Taina Ruuskanen; Filipe Duarte Santos; Simon Schallhart; R. Schnitzhofer; Mario Simon; James N. Smith; Jasmin Tröstl; Georgios Tsagkogeorgas; António Tomé; Petri Vaattovaara; Hanna Vehkamäki; Aron Vrtala; Paul E. Wagner; Christina Williamson; Daniela Wimmer; Paul M. Winkler; Annele Virtanen; Neil M. Donahue; Kenneth S. Carslaw; Urs Baltensperger; Ilona Riipinen; Joachim Curtius; Douglas R. Worsnop; Markku Kulmala;The growth of freshly formed aerosol particles can be the bottleneck in their survival to cloud condensation nuclei. It is therefore crucial to understand how particles grow in the atmosphere. Insufficient experimental data has impeded a profound understanding of nano-particle growth under atmospheric conditions. Here we study nano-particle growth in the CLOUD (Cosmics Leaving OUtdoors Droplets) chamber, starting from the formation of molecular clusters. We present measured growth rates at sub-3 nm sizes with different atmospherically relevant concentrations of sulphuric acid, water, ammonia and dimethylamine. We find that atmospheric ions and small acid-base clusters, which are not generally accounted for in the measurement of sulphuric acid vapour, can participate in the growth process, leading to enhanced growth rates. The availability of compounds capable of stabilizing sulphuric acid clusters governs the magnitude of these effects and thus the exact growth mechanism. We bring these observations into a coherent framework and discuss their significance in the atmosphere. The growth rates of freshly formed aerosol particles influence what fraction of these can reach sizes large enough to affect cloud formation and climate. Here, the authors show that the nano-particle growth in a sulphuric acid containing system can be enhanced by the presence of ions or small acid-base clusters.
Permanent Hosting, A... arrow_drop_down Permanent Hosting, Archiving and Indexing of Digital Resources and Assets; Nature CommunicationsOther literature type . Article . 2016 . Peer-reviewedLicense: CC BYEurope PubMed CentralArticle . 2016Full-Text: http://europepmc.org/articles/PMC4876472Data sources: PubMed CentralHELDA - Digital Repository of the University of HelsinkiArticle . 2016 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiHochschulschriftenserver - Universität Frankfurt am MainArticle . 2016Data sources: Hochschulschriftenserver - Universität Frankfurt am MaineScholarship - University of CaliforniaArticle . 2016Data sources: eScholarship - University of CaliforniaeScholarship - University of CaliforniaArticle . 2016Data sources: eScholarship - University of Californiaadd 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/ncomms11594&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 126 citations 126 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!visibility 5visibility views 5 download downloads 6 Powered bymore_vert Permanent Hosting, A... arrow_drop_down Permanent Hosting, Archiving and Indexing of Digital Resources and Assets; Nature CommunicationsOther literature type . Article . 2016 . Peer-reviewedLicense: CC BYEurope PubMed CentralArticle . 2016Full-Text: http://europepmc.org/articles/PMC4876472Data sources: PubMed CentralHELDA - Digital Repository of the University of HelsinkiArticle . 2016 . Peer-reviewedData sources: HELDA - Digital Repository of the University of HelsinkiHochschulschriftenserver - Universität Frankfurt am MainArticle . 2016Data sources: Hochschulschriftenserver - Universität Frankfurt am MaineScholarship - University of CaliforniaArticle . 2016Data sources: eScholarship - University of CaliforniaeScholarship - University of CaliforniaArticle . 2016Data sources: eScholarship - University of Californiaadd 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/ncomms11594&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2012 Australia, AustriaPublisher:Public Library of Science (PLoS) Funded by:NSF | The Role of Resource Lega..., FCT | AMOX - Relative importanc..., NSF | Collaborative Research: B... +2 projectsNSF| The Role of Resource Legacy on Contemporary Linkages Between Biodiversity and Ecosystem Processes in a Cold Desert Ecosystem: The McMurdo Dry Valley LTER Program ,FCT| AMOX - Relative importance of archaeal and bacterial ammonia oxidizers in estuarine ecosystem function: role of environmental controls ,NSF| Collaborative Research: Biogeochemistry of Cyanobactrial Mats and Hyporheic Zone Microbes in McMurdo Dry Valley Glacial Meltwater Streams ,FCT| SFRH/BPD/76989/2011 ,NSF| Increased Connectivity in a Polar Desert Resulting from Climate Warming: McMurdo Dry Valley LTER ProgramCatarina Magalhães; Mark I. Stevens; S. Craig Cary; Becky A. Ball; Bryan C. Storey; Diana H. Wall; Roman Türk; Ulrike Ruprecht;Multitrophic communities that maintain the functionality of the extreme Antarctic terrestrial ecosystems, while the simplest of any natural community, are still challenging our knowledge about the limits to life on earth. In this study, we describe and interpret the linkage between the diversity of different trophic level communities to the geological morphology and soil geochemistry in the remote Transantarctic Mountains (Darwin Mountains, 80S). We examined the distribution and diversity of biota (bacteria, cyanobacteria, lichens, algae, invertebrates) with respect to elevation, age of glacial drift sheets, and soil physicochemistry. Results showed an abiotic spatial gradient with respect to the diversity of the organisms across different trophic levels. More complex communities, in terms of trophic level diversity, were related to the weakly developed younger drifts (Hatherton and Britannia) with higher soil C/N ratio and lower total soluble salts content (thus lower conductivity). Our results indicate that an increase of ion concentration from younger to older drift regions drives a succession of complex to more simple communities, in terms of number of trophic levels and diversity within each group of organisms analysed. This study revealed that integrating diversity across multi-trophic levels of biotic communities with abiotic spatial heterogeneity and geological history is fundamental to understand environmental constraints influencing biological distribution in Antarctic soil ecosystems. (VLID)1649015
Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2012Full-Text: http://europepmc.org/articles/PMC3446939Data sources: PubMed Centraladd 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=10.1371/journal.pone.0044578&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 60 citations 60 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!more_vert Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2012Full-Text: http://europepmc.org/articles/PMC3446939Data sources: PubMed Centraladd 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=10.1371/journal.pone.0044578&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2018 United KingdomPublisher:Springer Science and Business Media LLC Funded by:FCT | LA 1FCT| LA 1Rebecca Kate Burns; Peter M. Wynn; Philip A. Barker; Niall P. McNamara; Simon Oakley; Nick Ostle; Andrew W. Stott; Hugh Tuffen; Zheng Zhou; Fiona S. Tweed; Aaron Chesler; Micha Stuart;AbstractThe base of glaciers and ice sheets provide environments suitable for the production of methane. High pressure conditions beneath the impermeable ‘cap’ of overlying ice promote entrapment of methane reserves that can be released to the atmosphere during ice thinning and meltwater evacuation. However, contemporary glaciers and ice sheets are rarely accounted for as methane contributors through field measurements. Here, we present direct field-based evidence of methane production and release from beneath the Icelandic glacier Sólheimajökull, where geothermal activity creates sub-oxic conditions suited to methane production and preservation along the meltwater flow path. Methane production at the glacier bed (48 tonnes per day, or 39 mM CH4 m−2 day−1), and evasion to the atmosphere from the proglacial stream (41 tonnes per day, or 32 M CH4 m−2 day−1) indicates considerable production and release to the atmosphere during the summer melt season. Isotopic signatures (−60.2‰ to −7.6‰ for δ13Cch4 and −324.3‰ to +161.1‰ for Dch4), support a biogenic signature within waters emerging from the subglacial environment. Temperate glacial methane production and release may thus be a significant and hitherto unresolved contributor of a potent greenhouse gas to the atmosphere.
Scientific Reports; ... arrow_drop_down Europe PubMed CentralArticle . 2018Full-Text: http://europepmc.org/articles/PMC6244297Data sources: PubMed Centraladd 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/s41598-018-35253-2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 17 citations 17 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 15visibility views 15 download downloads 82 Powered bymore_vert Scientific Reports; ... arrow_drop_down Europe PubMed CentralArticle . 2018Full-Text: http://europepmc.org/articles/PMC6244297Data sources: PubMed Centraladd 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/s41598-018-35253-2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2020 United States, Brazil, SpainPublisher:Proceedings of the National Academy of Sciences Funded by:NSF | Collaborative Research: P..., FCT | D4NSF| Collaborative Research: P2C2--Cave Climate Histories of East/Central Asia: Deeper in Time, Wider Geographically, New Analytical Approaches, and New Tests of Climate Interpretations ,FCT| D4Hai Cheng; Haiwei Zhang; Christoph Spötl; Jonathan Baker; Ashish Sinha; Hanying Li; Miguel Bartolomé; Ana Moreno; Gayatri Kathayat; Jingyao Zhao; Xiyu Dong; Youwei Li; Youfeng Ning; Xue Jia; Baoyun Zong; Yassine Ait Brahim; Carlos Pérez-Mejías; Yanjun Cai; Valdir F. Novello; Francisco W. Cruz; Jeffrey P. Severinghaus; Zhisheng An; R. Lawrence Edwards;handle: 10261/240073
pmc: PMC7519346 , PMC7848538 , PMC7848605
The Younger Dryas (YD), arguably the most widely studied millennialscale extreme climate event, was characterized by diverse hydroclimate shifts globally and severe cooling at high northern latitudes that abruptly punctuated the warming trend from the last glacial to the present interglacial. To date, a precise understanding of its trigger, propagation, and termination remains elusive. Here, we present speleothem oxygen-isotope data that, in concert with other proxy records, allow us to quantify the timing of the YD onset and termination at an unprecedented subcentennial temporal precision across the North Atlantic, Asian Monsoon-Westerlies, and South American Monsoon regions. Our analysis suggests that the onsets of YD in the North Atlantic (12,870 ± 30 B.P.) and the Asian Monsoon- Westerlies region are essentially synchronous within a few decades and lead the onset in Antarctica, implying a north-to-south climate signal propagation via both atmospheric (decadal-time scale) and oceanic (centennial-time scale) processes, similar to the Dansgaard- Oeschger events during the last glacial period. In contrast, the YD termination may have started first in Antarctica at ~11,900 B.P., or perhaps even earlier in the western tropical Pacific, followed by the North Atlantic between ~11,700 ± 40 and 11,610 ± 40 B.P. These observations suggest that the initial YD termination might have originated in the Southern Hemisphere and/or the tropical Pacific, indicating a Southern Hemisphere/tropics to North Atlantic-Asian Monsoon-Westerlies directionality of climatic recovery. This work was supported by grants from National Nature Science Foundation of China (NSFC 41888101 and 41731174 to H.C.) and US NSF Grant (1702816 to R.L.E. and H.C.)
Proceedings of the N... arrow_drop_down Proceedings of the National Academy of SciencesArticle . 2020Full-Text: http://europepmc.org/articles/PMC7519346Data sources: PubMed CentraleScholarship - University of CaliforniaArticle . 2020Data sources: eScholarship - University of CaliforniaRepositório Institucional da USP (Biblioteca Digital da Produção Intelectual) - Universidade de São Paulo (USP); Proceedings of the National Academy of SciencesArticle . 2020 . Peer-reviewedLicense: CC BYRecolector de Ciencia Abierta, RECOLECTAArticle . 2020Data sources: Recolector de Ciencia Abierta, RECOLECTAProceedings of the National Academy of SciencesArticle . 2021 . Peer-reviewedData sources: CrossrefProceedings of the National Academy of SciencesArticle . 2021 . Peer-reviewedData 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=10.1073/pnas.2007869117&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 107 citations 107 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!visibility 29visibility views 29 download downloads 64 Powered bymore_vert Proceedings of the N... arrow_drop_down Proceedings of the National Academy of SciencesArticle . 2020Full-Text: http://europepmc.org/articles/PMC7519346Data sources: PubMed CentraleScholarship - University of CaliforniaArticle . 2020Data sources: eScholarship - University of CaliforniaRepositório Institucional da USP (Biblioteca Digital da Produção Intelectual) - Universidade de São Paulo (USP); Proceedings of the National Academy of SciencesArticle . 2020 . Peer-reviewedLicense: CC BYRecolector de Ciencia Abierta, RECOLECTAArticle . 2020Data sources: Recolector de Ciencia Abierta, RECOLECTAProceedings of the National Academy of SciencesArticle . 2021 . Peer-reviewedData sources: CrossrefProceedings of the National Academy of SciencesArticle . 2021 . Peer-reviewedData 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=10.1073/pnas.2007869117&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2019 GermanyPublisher:The Royal Society Funded by:UKRI | RootDetect: Remote Detect..., FCT | LA 1, UKRI | Space and Planetary Resea... +2 projectsUKRI| RootDetect: Remote Detection and Precision Management of Root Health ,FCT| LA 1 ,UKRI| Space and Planetary Research at Lancaster University ,UKRI| A Consolidated Grant Proposal for Solar System Research at the University of Leicester (2016-2019) ,UKRI| ASTIlluminating Solar-Planetary InteractionsStallard, Tom S.; Baines, Kevin H.; Melin, Henrik; Bradley, Thomas J.; Moore, Luke; O'Donoghue, James; Miller, Steve; Chowdhury, Mohammad N.; Badman, Sarah V.; Allison, Hayley J.; Roussos, Elias;Accepted: 2019-06-19 資料番号: SA1190089000 著者人数: 11名
Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2019Full-Text: http://europepmc.org/articles/PMC6710899Data sources: PubMed CentralGFZ German Research Centre for GeosciencesArticle . 2019License: CC BYData sources: GFZ German Research Centre for GeosciencesPhilosophical Transactions of the Royal Society A Mathematical Physical and Engineering SciencesArticleLicense: CC BYData sources: UnpayWallPhilosophical Transactions of the Royal Society A Mathematical Physical and Engineering SciencesArticle . 2019 . Peer-reviewedLicense: Royal Society Data Sharing and AccessibilityData sources: CrossrefPhilosophical Transactions of the Royal Society A Mathematical Physical and Engineering SciencesArticle . 2019Data sources: JAIROadd 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=10.1098/rsta.2018.0405&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routeshybrid 13 citations 13 popularity Top 10% influence Average impulse Top 10% Powered by BIP!more_vert Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2019Full-Text: http://europepmc.org/articles/PMC6710899Data sources: PubMed CentralGFZ German Research Centre for GeosciencesArticle . 2019License: CC BYData sources: GFZ German Research Centre for GeosciencesPhilosophical Transactions of the Royal Society A Mathematical Physical and Engineering SciencesArticleLicense: CC BYData sources: UnpayWallPhilosophical Transactions of the Royal Society A Mathematical Physical and Engineering SciencesArticle . 2019 . Peer-reviewedLicense: Royal Society Data Sharing and AccessibilityData sources: CrossrefPhilosophical Transactions of the Royal Society A Mathematical Physical and Engineering SciencesArticle . 2019Data sources: JAIROadd 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 2019 Portugal, Switzerland, SpainPublisher:American Geophysical Union (AGU) Funded by:FCT | Centre of Marine Sciences, UKRI | IODP Survey of the "..., SNSF | TEMPORAL RELATIONSHIPS AM...FCT| Centre of Marine Sciences ,UKRI| IODP Survey of the "Shackleton sites" on the Southwest Iberian Margin ,SNSF| TEMPORAL RELATIONSHIPS AMONG PROXY SIGNALS IN MARINE SEDIMENTS (TRAMPOLINE)Blanca Ausín; Negar Haghipour; Lukas Wacker; Antje H L Voelker; David A. Hodell; Clayton R. Magill; Nathan Looser; Stefano M. Bernasconi; Timothy I. Eglinton;This study identifies temporal biases in the radiocarbon ages of the planktonic foraminifera species Globigerina bulloides and Globigerinoides ruber (white) in a sediment core from the SW Iberian margin (so‐called Shackleton site). Leaching of the outer shell and measurement of the radiocarbon content of both the leachate and leached sample enabled us to identify surface contamination of the tests and its impact on their 14C ages. Incorporation of younger radiocarbon on the outer shell affected both species and had a larger impact downcore. Interspecies comparison of the 14C ages of the leached samples reveal systematic offsets with 14C ages for G. ruber being younger than G. bulloides ages during the last deglaciation and part of the Early and mid‐Holocene. The greatest offsets (up to 1,030 years) were found during Heinrich Stadial 1, the Younger Dryas, and part of the Holocene. The potential factors differentially affecting these two planktonic species were assessed by complementary 14C, oxygen and carbon isotopes, and species abundance determinations. The coupled effect of bioturbation with changes in the abundance of G. ruber is invoked to account for the large age offsets. Our results highlight that 14C ages of planktonic foraminifera might be largely compromised even in settings characterized by high sediment accumulation rates. Thus, a careful assessment of potential temporal biases must be performed prior to using 14C ages for paleoclimate investigations or radiocarbon calibrations (e.g., marine calibration curve Marine13, Reimer et al., 2013 Paleoceanography and Paleoclimatology, 34 (1) ISSN:2572-4517 ISSN:2572-4525
Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2019Full-Text: http://europepmc.org/articles/PMC6392128Data sources: PubMed CentralPaleoceanography and PaleoclimatologyArticle . 2019 . Peer-reviewedLicense: CC BY NC NDData sources: CrossrefSapientia Repositório da Universidade do AlgarveArticle . 2019License: CC BYData sources: Sapientia Repositório da Universidade do Algarveadd 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=10.1029/2018pa003490&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 15 citations 15 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 131visibility views 131 download downloads 108 Powered bymore_vert Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2019Full-Text: http://europepmc.org/articles/PMC6392128Data sources: PubMed CentralPaleoceanography and PaleoclimatologyArticle . 2019 . Peer-reviewedLicense: CC BY NC NDData sources: CrossrefSapientia Repositório da Universidade do AlgarveArticle . 2019License: CC BYData sources: Sapientia Repositório da Universidade do Algarveadd 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=10.1029/2018pa003490&type=result"></script>'); --> </script>
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