- home
- Search
- NEANIAS Atmospheric Research Community
- 2014-2023
- Publications
- Research software
- Other research products
- US
- Mémoires en Sciences de l'Informati...
- Hal-Diderot
- NEANIAS Atmospheric Research Community
- 2014-2023
- Publications
- Research software
- Other research products
- US
- Mémoires en Sciences de l'Informati...
- Hal-Diderot
Loading
description Publicationkeyboard_double_arrow_right Conference object 2016 FrancePublisher:Geological Society of America Bargar, John, R; Bone, Sharon; Boye, Kristin; Cardarelli, Emily; Janot, Noemie; Noël, Vincent; Williams, Kenneth; Francis, Chris; Fendorf, Scott;International audience; Organic-rich anoxic sediments at DOE’s Rifle, CO site contain relatively high concentrations of uranium. Based on sediment characteristics, we speculated that these ‘naturally reduced zones’ (NRZs) are common and accumulate uranium at similar contaminated sites across the upper Colorado River Basin (CRB). To test this hypothesis, we sampled NRZs at 4 additional sites along a 700 km north-south transect of the upper CRB: Grand Junction and Naturita, CO; Shiprock, NM; and Riverton, WY. This work confirmed our hypothesis and showed that NRZs are also important reservoirs for nutrients and biogeochemical critical elements (BCE), including C, N, S, and Fe. Sulfate-reducing conditions are required for uranium accumulation, suggesting at least a strong indirect control of sulfide on U(VI) reduction. Indeed, the nominal oxidation state of water-soluble soil organic carbon was found to be correlated to sediment sulfide concentration, suggesting that sulfide plays a major role in poising the redox conditions of NRZs regionally.To better understand molecular controls over uranium behavior in NRZs, we performed controlled microcosm experiments designed to mimic sulfate-reducing conditions in NRZs and to more clearly define the potential roles of organic functional groups as uranium binding sites. U(IV) was found to be dominantly associated with surfaces of particulate organic carbon and to exhibit local molecular structure consistent with sorbed complexes. An important implication of this finding is that U(IV) will be readily mobilized in the presence of complexing agents and oxidants. Such conditions are common in NRZ sediments, which experience large variations in saturation state and redox conditions throughout the annual winter (base flow) / summer (meltwater discharge) cycle within the upper CRB.In ensemble, these studies suggest new conceptual and process models for uranium and BCE biogeochemical behavior that are unprecedented in their regional scale, detail, and awareness of variable hydrologic conditions. By studying anoxic sediment systems from a regional perspective, we have gained important insights into the range and intensity of processes that are likely to be important at individual sites.
https://doi.org/10.1... arrow_drop_down add 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=10.1130/abs/2016am-284709&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert https://doi.org/10.1... arrow_drop_down add 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=10.1130/abs/2016am-284709&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2021 FrancePublisher:Elsevier BV Funded by:EC | JERICO-NEXTEC| JERICO-NEXTNicolas Dubosq; Sabine Schmidt; John P. Walsh; Antoine Grémare; Hervé Gillet; Pascal Lebleu; Dominique Poirier; Marie-Claire Perello; Bastien Lamarque; Bruno Deflandre;International audience; On the Bay of Biscay continental shelf, there are several mid-shelf mud patches including La Grande Vasière to the north, the West Gironde Mud Patch (WGMP) off the Gironde estuary and the Basque Mud Patch close to the Spanish border. In general, these deposits are several meters thick and cover coarser substrate. Questions remain about their storage capability for fine particles and carbon. This work investigates the sedimentation of the WGMP in order to develop a first estimate of organic carbon (OC) burial. Interface sediment cores were collected at nine stations along two cross-shelf transects in October-November 2016. X-radiograph imaging and grain-size analyses were used to characterize sedimentary structures. 210 Pb xs depth profiles were established to calculate sediment (SAR) and mass (MAR) accumulation rates. Sedimentary structures indicate episodic sandy inputs overlying older deposits at proximal sites, and relatively continuous sedimentation at seaward locations. On the outer-central portion of the northern transect, a maximum SAR (0.47 cm yr − 1) was observed, suggesting a depocenter. On the southern transect, excluding two stations where sedimentary inputs appear massive but sporadic, the SARs are lower (<0.3 cm yr − 1). Quantitative estimates of OC burial rates increase seaward with a maximum of 45 gC m − 2 yr − 1. To evaluate carbon loading independent of grain-size variability, OC values were normalized to surface area of sediments (SA). Interestingly, a qualitative comparison of OC burial efficiencies using the OC/SA ratio highlights three groups of sites (low, medium and relatively high OC burial efficiency) which are likely related both to different sedimentary environments and variable deposition conditions linked to local environmental conditions and depth. This work highlights the likely control of hydrodynamic intensity and sedimentary inputs on the amount of OC stored in the WGMP sediments.
Continental Shelf Re... arrow_drop_down ArchiMer - Institutional Archive of IfremerOther literature type . 2021Data sources: ArchiMer - Institutional Archive of IfremerContinental Shelf ResearchArticle . 2021 . Peer-reviewedLicense: Elsevier TDMData sources: CrossrefMémoires en Sciences de l'Information et de la CommunicationArticle . 2021License: CC BY NC NDFull-Text: https://hal.science/hal-03337113/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.csr.2021.104419&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routeshybrid 5 citations 5 popularity Top 10% influence Average impulse Average Powered by BIP!more_vert Continental Shelf Re... arrow_drop_down ArchiMer - Institutional Archive of IfremerOther literature type . 2021Data sources: ArchiMer - Institutional Archive of IfremerContinental Shelf ResearchArticle . 2021 . Peer-reviewedLicense: Elsevier TDMData sources: CrossrefMémoires en Sciences de l'Information et de la CommunicationArticle . 2021License: CC BY NC NDFull-Text: https://hal.science/hal-03337113/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.csr.2021.104419&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2014 FrancePublisher:Elsevier BV Authors: Antonio Pio Rinaldi; Jonny Rutqvist; Frédéric Cappa;Antonio Pio Rinaldi; Jonny Rutqvist; Frédéric Cappa;International audience; The importance of geomechanics--including the potential for faults to reactivate during large-scale geologic carbon sequestration operations--has recently become more widely recognized. However, notwithstanding the potential for triggering notable (felt) seismic events, the potential for buoyancy-driven CO2 to reach potable groundwater and the ground surface is actually more important from public safety and storage-efficiency perspectives. In this context, this work extends the previous studies on the geomechanical modeling of fault responses during underground carbon dioxide injection, focusing on the short-term integrity of the sealing caprock, and hence on the potential for leakage of either brine or CO2 to reach the shallow groundwater aquifers during active injection. We consider stress/strain-dependent permeability and study the leakage through the fault zone as its permeability changes during a reactivation, also causing seismicity. We analyze several scenarios related to the volume of CO2 injected (and hence as a function of the overpressure), involving both minor and major faults, and analyze the profile risks of leakage for different stress/strain-permeability coupling functions. We conclude that whereas it is very difficult to predict how much fault permeability could change upon reactivation, this process can have a significant impact on the leakage rate. Moreover, our analysis shows that induced seismicity associated with fault reactivation may not necessarily open up a new flow path for leakage. Results show a poor correlation between magnitude and amount of fluid leakage, meaning that a single event is generally not enough to substantially change the permeability along the entire fault length. Consequently, even if some changes in permeability occur, this does not mean that the CO2 will migrate up along the entire fault, breaking through the caprock to enter the overlying aquifer.
International Journa... arrow_drop_down HAL - UPEC / UPEM; HAL-Inserm; Hal-DiderotArticle . 2014International Journal of Greenhouse Gas ControlArticle . 2014 . 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=10.1016/j.ijggc.2013.11.001&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 126 citations 126 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!more_vert International Journa... arrow_drop_down HAL - UPEC / UPEM; HAL-Inserm; Hal-DiderotArticle . 2014International Journal of Greenhouse Gas ControlArticle . 2014 . 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=10.1016/j.ijggc.2013.11.001&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2014 FrancePublisher:Elsevier BV Authors: Martin Guitreau; Janne Blichert-Toft; Kjell Billström;Martin Guitreau; Janne Blichert-Toft; Kjell Billström;Abstract The Skellefte district is a seemingly juvenile and heavily mineralized crustal domain in northern Sweden that formed between 1.90 and 1.87 Ga. It is commonly interpreted as a volcanic arc deposited on a basement (known variously as the Bothnian or the Knaften-Barsele group) that could be represented by older rocks (1.96–1.94 Ga) found in the vicinity. In order to understand the potential genetic relationship between the arc and the basement, Hf and Pb isotopes in magmatic zircons from key lithologies were measured by solution multi-collector inductively coupled plasma mass spectrometry. It is shown that both geological groups display similar Hf isotope compositions, which translate into decreasing ɛ Hf with time. Overall, the data are compatible with reworking of the Knaften-Barsele arc to produce the Skellefte rocks over a short time interval from 1.90 to 1.87 Ga in a context of crustal extension with ongoing subduction. When the data presented here are integrated with general models of tectonic evolution of the Svecofennian orogen, they fit a scenario in which the juvenile Knaften-Barsele arc formed between 1.96 and 1.94 Ga and became accreted onto the Karelian continent located further north at about 1.92–1.91 Ga. Systematic north to south variations in Pb, Nd, and Hf isotope compositions throughout the Svecofennides, interpreted as resulting from an increase in Archean crust involvement toward the south, indicate a genetic link between the Proterozoic crustal domains of Sweden and Finland.
add 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=10.1016/j.precamres.2014.07.005&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu10 citations 10 popularity Top 10% influence Average impulse Average Powered by BIP!more_vert add 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=10.1016/j.precamres.2014.07.005&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2016 France, Italy, ItalyPublisher:EDP Sciences Funded by:EC | EARLYEC| EARLYGuaita, L.; Pentericci, L.; Grazian, A.; Vanzella, E.; Nonino, M.; Giavalisco, M.; Zamorani, G.; Bongiorno, A.; Cassata, P.; Castellano, M.; Garilli, B.; Gawiser, E.; Le Brun, V.; Le Fevre, O.; Lemaux, B. C.; Maccagni, D.; Merlin, E.; Santini, P.; Tasca, L. A. M.; Thomas, R.; Zucca, E.; De Barros, S.; Hathi, N. P.; Amorín, R.; Bardelli, S.; Fontana, A.;Aim: We aim to measure the LyC signal from a sample of sources in the Chandra deep field south. We collect star-forming galaxies (SFGs) and active galactic nuclei (AGN) with accurate spectroscopic redshifts, for which Hubble Space Telescope (HST) coverage and multi-wavelength photometry are available. Method: We selected a sample of about 200 sources at z~3. Taking advantage of HST resolution, we applied a careful cleaning procedure and rejected sources showing nearby clumps with different colours, which could be lower-z interlopers. Our clean sample consisted of 86 SFGs (including 19 narrow-band selected Lya emitters) and 8 AGN (including 6 detected in X-rays). We measured the LyC flux from aperture photometry in four narrow-band filters covering wavelengths below a 912 A rest frame (3.11
Astronomy and Astrop... arrow_drop_down OA@INAF - Istituto Nazionale di AstrofisicaArticle . 2016Data sources: OA@INAF - Istituto Nazionale di Astrofisicahttps://doi.org/10.48550/arxiv...Article . 2016License: arXiv Non-Exclusive DistributionData sources: DataciteAstronomy and AstrophysicsArticle . 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=10.1051/0004-6361/201527597&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 41 citations 41 popularity Top 10% influence Average impulse Top 10% Powered by BIP!more_vert Astronomy and Astrop... arrow_drop_down OA@INAF - Istituto Nazionale di AstrofisicaArticle . 2016Data sources: OA@INAF - Istituto Nazionale di Astrofisicahttps://doi.org/10.48550/arxiv...Article . 2016License: arXiv Non-Exclusive DistributionData sources: DataciteAstronomy and AstrophysicsArticle . 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=10.1051/0004-6361/201527597&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Article 2016 United States, Switzerland, France, Finland, France, FinlandPublisher:American Association for the Advancement of Science (AAAS) Funded by:EC | nanoCAVa, AKA | Formation and growth of a..., AKA | ATMOSPHERIC SCIENCES - Pa... +16 projectsEC| nanoCAVa ,AKA| Formation and growth of atmospheric aerosol particles: from molecular to global scale ,AKA| ATMOSPHERIC SCIENCES - Particularly for determination of cluster and nanoaerosol composition ,AKA| Measurement of Nano-particle Nucelation in the Atmosphere via Cluster Ion Mass Spectrometry ,FCT| Collaboration in the CLOUD experiment ,SNSF| Investigation of new particle formation in the CLOUD chamber at CERN and the PSI smog chamber ,AKA| Nanoaerosol synthesis for bridging laboratory and field investigations of new particle formation and growth ,AKA| Formation and growth of atmospheric aerosol particles: from molecular to global scale ,FWF| Chemical Characterization of Organic Nanoparticles ,UKRI| E-Infrastructure Interconnectivity EPSRC - Chris Taylor ,AKA| Infrastructure of Environmental and Atmospheric Sciences (ATM-Science) ,SNSF| CLOUD ,SNSF| FORCE Proposal to Investigation of Secondary Organic Aerosol Formation in the PSI Smog Chamber and at CERN ,EC| ATMNUCLE ,AKA| Computational research chain from quantum chemistry to climate change / Consortium: ComQuaCC ,AKA| Nucleation of particles and ice in the atmosphere: from surface layer to upper troposphere ,SNSF| Investigation of Secondary Organic Aerosol Formation in the PSI Smog Chamber and at CERN ,UKRI| Global Aerosol Synthesis and Science Project (GASSP) to reduce the uncertainty in aerosol radiative forcing ,SNSF| Molecular Imaging of CNS-Immune System Interactions in Multiple SclerosisEimear M. Dunne; Hamish Gordon; Andreas Kürten; Joao Almeida; Jonathan Duplissy; Christina Williamson; Ismael K. Ortega; Kirsty J. Pringle; Alexey Adamov; Urs Baltensperger; Peter Barmet; Francois Benduhn; F. Bianchi; Martin Breitenlechner; Antony D. Clarke; Joachim Curtius; Josef Dommen; Neil M. Donahue; Sebastian Ehrhart; Richard C. Flagan; Alessandro Franchin; Roberto Guida; Jani Hakala; Armin Hansel; Martin Heinritzi; Tuija Jokinen; Juha Kangasluoma; Jasper Kirkby; Markku Kulmala; Agnieszka Kupc; Michael J. Lawler; Katrianne Lehtipalo; Vladimir Makhmutov; Graham Mann; Serge Mathot; Joonas Merikanto; Pasi Miettinen; Athanasios Nenes; Antti Onnela; Alexandru Rap; Carly Reddington; Francesco Riccobono; N. A. D. Richards; Matti P. Rissanen; Linda Rondo; Nina Sarnela; Siegfried Schobesberger; Kamalika Sengupta; Mario Simon; Mikko Sipilä; James N. Smith; Yuri Stozkhov; António Tomé; Jasmin Tröstl; Paul E. Wagner; Daniela Wimmer; Paul M. Winkler; Douglas R. Worsnop; Kenneth S. Carslaw;pmid: 27789796
New particle formation in the atmosphere produces around half of the cloud condensation nuclei that seed cloud droplets. Such particles have a pivotal role in determining the properties of clouds and the global radiation balance. Dunne et al. used the CLOUD (Cosmics Leaving Outdoor Droplets) chamber at CERN to construct a model of aerosol formation based on laboratory measured nucleation rates. They found that nearly all nucleation involves either ammonia or biogenic organic compounds. Furthermore in the present day atmosphere cosmic ray intensity cannot meaningfully affect climate via nucleation.Science this issue p. 1119Fundamental questions remain about the origin of newly formed atmospheric aerosol particles because data from laboratory measurements have been insufficient to build global models. In contrast gas phase chemistry models have been based on laboratory kinetics measurements for decades. We built a global model of aerosol formation by using extensive laboratory measurements of rates of nucleation involving sulfuric acid ammonia ions and organic compounds conducted in the CERN CLOUD (Cosmics Leaving Outdoor Droplets) chamber. The simulations and a comparison with atmospheric observations show that nearly all nucleation throughout the present day atmosphere involves ammonia or biogenic organic compounds in addition to sulfuric acid. A considerable fraction of nucleation involves ions but the relatively weak dependence on ion concentrations indicates that for the processes studied variations in cosmic ray intensity do not appreciably affect climate through nucleation in the present day atmosphere.U http://science.sciencemag.org/content/sci/354/6316/1119.full.pdf
Science arrow_drop_down ScienceOther literature type . Article . 2016 . Peer-reviewedCaltech AuthorsArticle . 2016 . Peer-reviewedFull-Text: https://authors.library.caltech.edu/71775/5/Global%20atmospheric%20particle%20formation.pdfData sources: Caltech AuthorsInfoscience - EPFL scientific publicationsOther literature typeData sources: Infoscience - EPFL scientific publicationsadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1126/science.aaf2649&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 276 citations 276 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!visibility 34visibility views 34 download downloads 740 Powered bymore_vert Science arrow_drop_down ScienceOther literature type . Article . 2016 . Peer-reviewedCaltech AuthorsArticle . 2016 . Peer-reviewedFull-Text: https://authors.library.caltech.edu/71775/5/Global%20atmospheric%20particle%20formation.pdfData sources: Caltech AuthorsInfoscience - EPFL scientific publicationsOther literature typeData sources: Infoscience - EPFL scientific publicationsadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1126/science.aaf2649&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2018 FrancePublisher:American Association for the Advancement of Science (AAAS) Jan-Erik Wahlund; Michiko Morooka; Lina Hadid; A. M. Persoon; William M. Farrell; D. A. Gurnett; George Hospodarsky; William S. Kurth; Shengyi Ye; David Andrews; Niklas J. T. Edberg; Anders Eriksson; Erik Vigren;pmid: 29229651
Cassini enters Saturn's ionosphere The upper reaches of most planetary atmospheres contain a layer that is ionized by incoming solar radiation—the ionosphere. As it went through its final orbits around Saturn, the Cassini spacecraft dipped close enough to the planet to pass directly through the ionosphere. Wahlund et al. examined the plasma data collected in situ and found that Saturn's ionosphere is highly variable and interacts with the planet's inner ring. They also observed decreases in ionization within regions shaded from the Sun by the rings. Science , this issue p. 66
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1126/science.aao4134&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 40 citations 40 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1126/science.aao4134&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2018 FrancePublisher:Public Library of Science (PLoS) Di Cristofaro, Julie; Mazières, Stéphane; Tous, Audrey; Di Gaetano, Cornelia; Lin, Alice A.; Nebbia, Paul; Piazza, Alberto; King, Roy J.; Underhill, Peter; Chiaroni, Jacques;International audience; The rarity of human remains makes it difficult to apprehend the first settlements in Corsica. It is admitted that initial colonization could have occurred during the Mesolithic period when glaciations would have shortened the open water travel distance from the continent. Meso-lithic sites in Corsica show relatively short and irregular occupation, and suggest discontinu-ous settling of very mobile groups probably traveling by boat. Previous genetic studies on Corsican populations showed internal differentiation and a relatively poor genetic relationship with continental populations, despite intense historical contacts, however local Meso-lithic-based genetic inheritance has never been properly estimated. The aim of this study was to explore the Corsican genetic profile of Y-chromosomes in order to trace the genetic signatures back to the first migrations to Corsica. This study included 321 samples from men throughout Corsica; samples from Provence and Tuscany were added to the cohort. All samples were typed for 92 Y-SNPs, and Y-STRs were also analyzed. Results revealed highly differentiated haplogroup patterns among Corsican populations. Haplogroup G had the highest frequency in Corsica, mostly displaying a unique Y-STR profile. When compared with Provence and Tuscany, Corsican populations displayed limited genetic proximity. Cor-sican populations present a remarkable Y-chromosome genetic mixture. Although the Cor-sican Y-chromosome profile shows similarities with both Provence and to a lesser extent Tuscany, it mainly displays its own specificity. This study confirms the high level of genetic diversity in Corsican populations and backs genetic contributions from prehistoric migrations associated with the Mesolithic, Neolithic and Metal Age eras, rather than from historical movements to Corsica, respectively attested by frequencies and TMRCA of haplogroups G2a-L91 and G2a-P15, J2a-M241 and J2-DYS445 = 6, R1b-U152 and R1b-U106. These results suggest that marine routes to reach the Corsican coast in many different points may have led to such a genetic heterogeneity.
Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2018Full-Text: http://europepmc.org/articles/PMC6070208Data sources: PubMed CentralHAL AMU; Mémoires en Sciences de l'Information et de la CommunicationArticle . 2018License: CC BYFull-Text: https://hal.science/hal-01863090/documentHyper Article en Ligne - Sciences de l'Homme et de la Société; Hal-DiderotArticle . 2018License: CC BYadd 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.0200641&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 5 citations 5 popularity Average influence Average impulse Average Powered by BIP!more_vert Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2018Full-Text: http://europepmc.org/articles/PMC6070208Data sources: PubMed CentralHAL AMU; Mémoires en Sciences de l'Information et de la CommunicationArticle . 2018License: CC BYFull-Text: https://hal.science/hal-01863090/documentHyper Article en Ligne - Sciences de l'Homme et de la Société; Hal-DiderotArticle . 2018License: CC BYadd 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.0200641&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Article , Preprint 2022 Denmark, Germany, NetherlandsPublisher:Copernicus GmbH Funded by:ANR | RESTORE, EC | NunataryukANR| RESTORE ,EC| NunataryukM. Lizotte; B. Juhls; B. Juhls; B. Juhls; A. Matsuoka; A. Matsuoka; P. Massicotte; G. Mével; D. O. J. Anikina; S. Antonova; G. Bécu; M. Béguin; S. Bélanger; T. Bossé-Demers; T. Bossé-Demers; L. Bröder; F. Bruyant; G. Chaillou; J. Comte; R.-M. Couture; R.-M. Couture; E. Devred; G. Deslongchamps; T. Dezutter; M. Dillon; D. Doxaran; A. Flamand; F. Fell; J. Ferland; J. Ferland; M.-H. Forget; M. Fritz; T. J. Gordon; C. Guilmette; A. Hilborn; R. Hussherr; R. Hussherr; C. Irish; F. Joux; L. Kipp; A. Laberge-Carignan; A. Laberge-Carignan; H. Lantuit; E. Leymarie; A. Mannino; J. Maury; P. Overduin; L. Oziel; L. Oziel; C. Stedmon; C. Thomas; L. Tisserand; J.-É. Tremblay; J. Vonk; D. Whalen; M. Babin;Climate warming and related drivers of soil thermal change in the Arctic are expected to modify the distribution and dynamics of carbon contained in perennially frozen grounds. Thawing of permafrost in the Mackenzie Delta region of northwestern Canada, coupled with increases in river discharge and coastal erosion, trigger the release of terrestrial organic matter (OMt) from the largest Arctic drainage basin in North America into the Arctic Ocean. While this process is ongoing, well-established, and its rate is accelerating, the fate of the newly-mobilized organic matter, as it transits from the watershed through the delta and into the marine system, remains poorly understood. In the framework of the European Horizon 2020 Nunataryuk programme, and as part of the Work Package 4 (WP4) Coastal Waters theme, four field expeditions were conducted in the Mackenzie Delta region and southern Beaufort Sea from April to September 2019. The temporal sampling design allowed the survey of ambient conditions in the coastal waters under full ice cover prior to the spring freshet, during ice break-up in summer, as well as anterior to the freeze-up period in fall. To capture the fluvial-marine transition zone, and with distinct challenges related to shallow waters and changing seasonal and meteorological conditions, the field sampling was conducted in close partnership with members of the communities of Aklavik, Inuvik and Tuktoyaktuk, using several platforms: helicopters, snowmobiles and small boats. Water column profiles of physical and optical variables were measured in situ, while surface water, groundwater and sediment samples were collected and preserved for the determination of the composition and sources of OMt, including particulate and dissolved organic carbon (POC, DOC), and chromophoric dissolved organic matter (CDOM), as well as a suite of physical, chemical and biological variables. Here we present an overview of the standardized datasets, including hydrographic profiles, remote sensing reflectance, temperature and salinity, particle absorption, nutrients, dissolved organic carbon, particulate organic carbon, particulate organic nitrogen, colored dissolved organic matter absorption, fluorescent dissolved organic matter intensity, suspended particulate matter, total particulate carbon, total particulate nitrogen, stable water isotopes, radon in water, bacterial abundance, and a string of phytoplankton pigments including total chlorophyll. Datasets and related metadata can be found in Juhls et al. 2021. https://doi.pangaea.de/10.1594/PANGAEA.937587.
Earth System Science... arrow_drop_down https://doi.org/10.5194/essd-2...Preprint . 2022 . Peer-reviewedLicense: CC BYData sources: CrossrefElectronic Publication Information CenterArticle . 2023Data sources: Electronic Publication Information CenterOnline Research Database In TechnologyArticle . 2023Data sources: Online Research Database In TechnologyMémoires en Sciences de l'Information et de la CommunicationArticle . 2022License: CC BYFull-Text: https://hal.science/hal-03955929/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/essd-2022-163&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 2 citations 2 popularity Top 10% influence Average impulse Average Powered by BIP!more_vert Earth System Science... arrow_drop_down https://doi.org/10.5194/essd-2...Preprint . 2022 . Peer-reviewedLicense: CC BYData sources: CrossrefElectronic Publication Information CenterArticle . 2023Data sources: Electronic Publication Information CenterOnline Research Database In TechnologyArticle . 2023Data sources: Online Research Database In TechnologyMémoires en Sciences de l'Information et de la CommunicationArticle . 2022License: CC BYFull-Text: https://hal.science/hal-03955929/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/essd-2022-163&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2018 United KingdomPublisher:Elsevier BV Funded by:UKRI | Durham DiRAC-2 petascale ..., UKRI | Durham DiRAC-2 petascale ..., EC | COSMIWAY +3 projectsUKRI| Durham DiRAC-2 petascale facility ,UKRI| Durham DiRAC-2 petascale facility support ,EC| COSMIWAY ,UKRI| Durham Astronomy Consolidated Grant 2014-2017 ,UKRI| Quota Studentship 2012 ,UKRI| The Virgo consortium for cosmological supercomputer simulationsJohn Wilson; Vincent R. Eke; Richard Massey; Richard C. Elphic; William C. Feldman; Sylvestre Maurice; L. F. A. Teodoro;We present a map of the near subsurface hydrogen distribution on Mars, based on epithermal neutron data from the Mars Odyssey Neutron Spectrometer. The map's spatial resolution is approximately improved two-fold via a new form of the pixon image reconstruction technique. We discover hydrogen-rich mineralogy far from the poles, including ~10 wt. % water equivalent hydrogen (WEH) on the flanks of the Tharsis Montes and greater than 40 wt. % WEH at the Medusae Fossae Formation (MFF). The high WEH abundance at the MFF implies the presence of bulk water ice. This supports the hypothesis of recent periods of high orbital obliquity during which water ice was stable on the surface. We find the young undivided channel system material in southern Elysium Planitia to be distinct from its surroundings and exceptionally dry; there is no evidence of hydration at the location in Elysium Planitia suggested to contain a buried water ice sea. Finally, we find that the sites of recurring slope lineae (RSL) do not correlate with subsurface hydration. This implies that RSL are not fed by large, near-subsurface aquifers, but are instead the result of either small (less than 120 km diameter) aquifers, deliquescence of perchlorate and chlorate salts or dry, granular flows. Comment: Accepted for publication in Icarus, 16 pages, 12 figures
Durham Research Onli... arrow_drop_down Durham Research Online; IcarusArticle . 2018 . Peer-reviewedLicense: Elsevier TDMFull-Text: http://dro.dur.ac.uk/22714/1/22714.pdfhttps://doi.org/10.48550/arxiv...Article . 2017License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.icarus.2017.07.028&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 69 citations 69 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!more_vert Durham Research Onli... arrow_drop_down Durham Research Online; IcarusArticle . 2018 . Peer-reviewedLicense: Elsevier TDMFull-Text: http://dro.dur.ac.uk/22714/1/22714.pdfhttps://doi.org/10.48550/arxiv...Article . 2017License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.icarus.2017.07.028&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu
Loading
description Publicationkeyboard_double_arrow_right Conference object 2016 FrancePublisher:Geological Society of America Bargar, John, R; Bone, Sharon; Boye, Kristin; Cardarelli, Emily; Janot, Noemie; Noël, Vincent; Williams, Kenneth; Francis, Chris; Fendorf, Scott;International audience; Organic-rich anoxic sediments at DOE’s Rifle, CO site contain relatively high concentrations of uranium. Based on sediment characteristics, we speculated that these ‘naturally reduced zones’ (NRZs) are common and accumulate uranium at similar contaminated sites across the upper Colorado River Basin (CRB). To test this hypothesis, we sampled NRZs at 4 additional sites along a 700 km north-south transect of the upper CRB: Grand Junction and Naturita, CO; Shiprock, NM; and Riverton, WY. This work confirmed our hypothesis and showed that NRZs are also important reservoirs for nutrients and biogeochemical critical elements (BCE), including C, N, S, and Fe. Sulfate-reducing conditions are required for uranium accumulation, suggesting at least a strong indirect control of sulfide on U(VI) reduction. Indeed, the nominal oxidation state of water-soluble soil organic carbon was found to be correlated to sediment sulfide concentration, suggesting that sulfide plays a major role in poising the redox conditions of NRZs regionally.To better understand molecular controls over uranium behavior in NRZs, we performed controlled microcosm experiments designed to mimic sulfate-reducing conditions in NRZs and to more clearly define the potential roles of organic functional groups as uranium binding sites. U(IV) was found to be dominantly associated with surfaces of particulate organic carbon and to exhibit local molecular structure consistent with sorbed complexes. An important implication of this finding is that U(IV) will be readily mobilized in the presence of complexing agents and oxidants. Such conditions are common in NRZ sediments, which experience large variations in saturation state and redox conditions throughout the annual winter (base flow) / summer (meltwater discharge) cycle within the upper CRB.In ensemble, these studies suggest new conceptual and process models for uranium and BCE biogeochemical behavior that are unprecedented in their regional scale, detail, and awareness of variable hydrologic conditions. By studying anoxic sediment systems from a regional perspective, we have gained important insights into the range and intensity of processes that are likely to be important at individual sites.
https://doi.org/10.1... arrow_drop_down add 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=10.1130/abs/2016am-284709&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert https://doi.org/10.1... arrow_drop_down add 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=10.1130/abs/2016am-284709&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2021 FrancePublisher:Elsevier BV Funded by:EC | JERICO-NEXTEC| JERICO-NEXTNicolas Dubosq; Sabine Schmidt; John P. Walsh; Antoine Grémare; Hervé Gillet; Pascal Lebleu; Dominique Poirier; Marie-Claire Perello; Bastien Lamarque; Bruno Deflandre;International audience; On the Bay of Biscay continental shelf, there are several mid-shelf mud patches including La Grande Vasière to the north, the West Gironde Mud Patch (WGMP) off the Gironde estuary and the Basque Mud Patch close to the Spanish border. In general, these deposits are several meters thick and cover coarser substrate. Questions remain about their storage capability for fine particles and carbon. This work investigates the sedimentation of the WGMP in order to develop a first estimate of organic carbon (OC) burial. Interface sediment cores were collected at nine stations along two cross-shelf transects in October-November 2016. X-radiograph imaging and grain-size analyses were used to characterize sedimentary structures. 210 Pb xs depth profiles were established to calculate sediment (SAR) and mass (MAR) accumulation rates. Sedimentary structures indicate episodic sandy inputs overlying older deposits at proximal sites, and relatively continuous sedimentation at seaward locations. On the outer-central portion of the northern transect, a maximum SAR (0.47 cm yr − 1) was observed, suggesting a depocenter. On the southern transect, excluding two stations where sedimentary inputs appear massive but sporadic, the SARs are lower (<0.3 cm yr − 1). Quantitative estimates of OC burial rates increase seaward with a maximum of 45 gC m − 2 yr − 1. To evaluate carbon loading independent of grain-size variability, OC values were normalized to surface area of sediments (SA). Interestingly, a qualitative comparison of OC burial efficiencies using the OC/SA ratio highlights three groups of sites (low, medium and relatively high OC burial efficiency) which are likely related both to different sedimentary environments and variable deposition conditions linked to local environmental conditions and depth. This work highlights the likely control of hydrodynamic intensity and sedimentary inputs on the amount of OC stored in the WGMP sediments.
Continental Shelf Re... arrow_drop_down ArchiMer - Institutional Archive of IfremerOther literature type . 2021Data sources: ArchiMer - Institutional Archive of IfremerContinental Shelf ResearchArticle . 2021 . Peer-reviewedLicense: Elsevier TDMData sources: CrossrefMémoires en Sciences de l'Information et de la CommunicationArticle . 2021License: CC BY NC NDFull-Text: https://hal.science/hal-03337113/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.csr.2021.104419&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routeshybrid 5 citations 5 popularity Top 10% influence Average impulse Average Powered by BIP!more_vert Continental Shelf Re... arrow_drop_down ArchiMer - Institutional Archive of IfremerOther literature type . 2021Data sources: ArchiMer - Institutional Archive of IfremerContinental Shelf ResearchArticle . 2021 . Peer-reviewedLicense: Elsevier TDMData sources: CrossrefMémoires en Sciences de l'Information et de la CommunicationArticle . 2021License: CC BY NC NDFull-Text: https://hal.science/hal-03337113/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.csr.2021.104419&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2014 FrancePublisher:Elsevier BV Authors: Antonio Pio Rinaldi; Jonny Rutqvist; Frédéric Cappa;Antonio Pio Rinaldi; Jonny Rutqvist; Frédéric Cappa;International audience; The importance of geomechanics--including the potential for faults to reactivate during large-scale geologic carbon sequestration operations--has recently become more widely recognized. However, notwithstanding the potential for triggering notable (felt) seismic events, the potential for buoyancy-driven CO2 to reach potable groundwater and the ground surface is actually more important from public safety and storage-efficiency perspectives. In this context, this work extends the previous studies on the geomechanical modeling of fault responses during underground carbon dioxide injection, focusing on the short-term integrity of the sealing caprock, and hence on the potential for leakage of either brine or CO2 to reach the shallow groundwater aquifers during active injection. We consider stress/strain-dependent permeability and study the leakage through the fault zone as its permeability changes during a reactivation, also causing seismicity. We analyze several scenarios related to the volume of CO2 injected (and hence as a function of the overpressure), involving both minor and major faults, and analyze the profile risks of leakage for different stress/strain-permeability coupling functions. We conclude that whereas it is very difficult to predict how much fault permeability could change upon reactivation, this process can have a significant impact on the leakage rate. Moreover, our analysis shows that induced seismicity associated with fault reactivation may not necessarily open up a new flow path for leakage. Results show a poor correlation between magnitude and amount of fluid leakage, meaning that a single event is generally not enough to substantially change the permeability along the entire fault length. Consequently, even if some changes in permeability occur, this does not mean that the CO2 will migrate up along the entire fault, breaking through the caprock to enter the overlying aquifer.
International Journa... arrow_drop_down HAL - UPEC / UPEM; HAL-Inserm; Hal-DiderotArticle . 2014International Journal of Greenhouse Gas ControlArticle . 2014 . 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=10.1016/j.ijggc.2013.11.001&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 126 citations 126 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!more_vert International Journa... arrow_drop_down HAL - UPEC / UPEM; HAL-Inserm; Hal-DiderotArticle . 2014International Journal of Greenhouse Gas ControlArticle . 2014 . 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=10.1016/j.ijggc.2013.11.001&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2014 FrancePublisher:Elsevier BV Authors: Martin Guitreau; Janne Blichert-Toft; Kjell Billström;Martin Guitreau; Janne Blichert-Toft; Kjell Billström;Abstract The Skellefte district is a seemingly juvenile and heavily mineralized crustal domain in northern Sweden that formed between 1.90 and 1.87 Ga. It is commonly interpreted as a volcanic arc deposited on a basement (known variously as the Bothnian or the Knaften-Barsele group) that could be represented by older rocks (1.96–1.94 Ga) found in the vicinity. In order to understand the potential genetic relationship between the arc and the basement, Hf and Pb isotopes in magmatic zircons from key lithologies were measured by solution multi-collector inductively coupled plasma mass spectrometry. It is shown that both geological groups display similar Hf isotope compositions, which translate into decreasing ɛ Hf with time. Overall, the data are compatible with reworking of the Knaften-Barsele arc to produce the Skellefte rocks over a short time interval from 1.90 to 1.87 Ga in a context of crustal extension with ongoing subduction. When the data presented here are integrated with general models of tectonic evolution of the Svecofennian orogen, they fit a scenario in which the juvenile Knaften-Barsele arc formed between 1.96 and 1.94 Ga and became accreted onto the Karelian continent located further north at about 1.92–1.91 Ga. Systematic north to south variations in Pb, Nd, and Hf isotope compositions throughout the Svecofennides, interpreted as resulting from an increase in Archean crust involvement toward the south, indicate a genetic link between the Proterozoic crustal domains of Sweden and Finland.
add 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=10.1016/j.precamres.2014.07.005&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu10 citations 10 popularity Top 10% influence Average impulse Average Powered by BIP!more_vert add 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=10.1016/j.precamres.2014.07.005&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2016 France, Italy, ItalyPublisher:EDP Sciences Funded by:EC | EARLYEC| EARLYGuaita, L.; Pentericci, L.; Grazian, A.; Vanzella, E.; Nonino, M.; Giavalisco, M.; Zamorani, G.; Bongiorno, A.; Cassata, P.; Castellano, M.; Garilli, B.; Gawiser, E.; Le Brun, V.; Le Fevre, O.; Lemaux, B. C.; Maccagni, D.; Merlin, E.; Santini, P.; Tasca, L. A. M.; Thomas, R.; Zucca, E.; De Barros, S.; Hathi, N. P.; Amorín, R.; Bardelli, S.; Fontana, A.;Aim: We aim to measure the LyC signal from a sample of sources in the Chandra deep field south. We collect star-forming galaxies (SFGs) and active galactic nuclei (AGN) with accurate spectroscopic redshifts, for which Hubble Space Telescope (HST) coverage and multi-wavelength photometry are available. Method: We selected a sample of about 200 sources at z~3. Taking advantage of HST resolution, we applied a careful cleaning procedure and rejected sources showing nearby clumps with different colours, which could be lower-z interlopers. Our clean sample consisted of 86 SFGs (including 19 narrow-band selected Lya emitters) and 8 AGN (including 6 detected in X-rays). We measured the LyC flux from aperture photometry in four narrow-band filters covering wavelengths below a 912 A rest frame (3.11
Astronomy and Astrop... arrow_drop_down OA@INAF - Istituto Nazionale di AstrofisicaArticle . 2016Data sources: OA@INAF - Istituto Nazionale di Astrofisicahttps://doi.org/10.48550/arxiv...Article . 2016License: arXiv Non-Exclusive DistributionData sources: DataciteAstronomy and AstrophysicsArticle . 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=10.1051/0004-6361/201527597&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 41 citations 41 popularity Top 10% influence Average impulse Top 10% Powered by BIP!more_vert Astronomy and Astrop... arrow_drop_down OA@INAF - Istituto Nazionale di AstrofisicaArticle . 2016Data sources: OA@INAF - Istituto Nazionale di Astrofisicahttps://doi.org/10.48550/arxiv...Article . 2016License: arXiv Non-Exclusive DistributionData sources: DataciteAstronomy and AstrophysicsArticle . 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=10.1051/0004-6361/201527597&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Article 2016 United States, Switzerland, France, Finland, France, FinlandPublisher:American Association for the Advancement of Science (AAAS) Funded by:EC | nanoCAVa, AKA | Formation and growth of a..., AKA | ATMOSPHERIC SCIENCES - Pa... +16 projectsEC| nanoCAVa ,AKA| Formation and growth of atmospheric aerosol particles: from molecular to global scale ,AKA| ATMOSPHERIC SCIENCES - Particularly for determination of cluster and nanoaerosol composition ,AKA| Measurement of Nano-particle Nucelation in the Atmosphere via Cluster Ion Mass Spectrometry ,FCT| Collaboration in the CLOUD experiment ,SNSF| Investigation of new particle formation in the CLOUD chamber at CERN and the PSI smog chamber ,AKA| Nanoaerosol synthesis for bridging laboratory and field investigations of new particle formation and growth ,AKA| Formation and growth of atmospheric aerosol particles: from molecular to global scale ,FWF| Chemical Characterization of Organic Nanoparticles ,UKRI| E-Infrastructure Interconnectivity EPSRC - Chris Taylor ,AKA| Infrastructure of Environmental and Atmospheric Sciences (ATM-Science) ,SNSF| CLOUD ,SNSF| FORCE Proposal to Investigation of Secondary Organic Aerosol Formation in the PSI Smog Chamber and at CERN ,EC| ATMNUCLE ,AKA| Computational research chain from quantum chemistry to climate change / Consortium: ComQuaCC ,AKA| Nucleation of particles and ice in the atmosphere: from surface layer to upper troposphere ,SNSF| Investigation of Secondary Organic Aerosol Formation in the PSI Smog Chamber and at CERN ,UKRI| Global Aerosol Synthesis and Science Project (GASSP) to reduce the uncertainty in aerosol radiative forcing ,SNSF| Molecular Imaging of CNS-Immune System Interactions in Multiple SclerosisEimear M. Dunne; Hamish Gordon; Andreas Kürten; Joao Almeida; Jonathan Duplissy; Christina Williamson; Ismael K. Ortega; Kirsty J. Pringle; Alexey Adamov; Urs Baltensperger; Peter Barmet; Francois Benduhn; F. Bianchi; Martin Breitenlechner; Antony D. Clarke; Joachim Curtius; Josef Dommen; Neil M. Donahue; Sebastian Ehrhart; Richard C. Flagan; Alessandro Franchin; Roberto Guida; Jani Hakala; Armin Hansel; Martin Heinritzi; Tuija Jokinen; Juha Kangasluoma; Jasper Kirkby; Markku Kulmala; Agnieszka Kupc; Michael J. Lawler; Katrianne Lehtipalo; Vladimir Makhmutov; Graham Mann; Serge Mathot; Joonas Merikanto; Pasi Miettinen; Athanasios Nenes; Antti Onnela; Alexandru Rap; Carly Reddington; Francesco Riccobono; N. A. D. Richards; Matti P. Rissanen; Linda Rondo; Nina Sarnela; Siegfried Schobesberger; Kamalika Sengupta; Mario Simon; Mikko Sipilä; James N. Smith; Yuri Stozkhov; António Tomé; Jasmin Tröstl; Paul E. Wagner; Daniela Wimmer; Paul M. Winkler; Douglas R. Worsnop; Kenneth S. Carslaw;pmid: 27789796
New particle formation in the atmosphere produces around half of the cloud condensation nuclei that seed cloud droplets. Such particles have a pivotal role in determining the properties of clouds and the global radiation balance. Dunne et al. used the CLOUD (Cosmics Leaving Outdoor Droplets) chamber at CERN to construct a model of aerosol formation based on laboratory measured nucleation rates. They found that nearly all nucleation involves either ammonia or biogenic organic compounds. Furthermore in the present day atmosphere cosmic ray intensity cannot meaningfully affect climate via nucleation.Science this issue p. 1119Fundamental questions remain about the origin of newly formed atmospheric aerosol particles because data from laboratory measurements have been insufficient to build global models. In contrast gas phase chemistry models have been based on laboratory kinetics measurements for decades. We built a global model of aerosol formation by using extensive laboratory measurements of rates of nucleation involving sulfuric acid ammonia ions and organic compounds conducted in the CERN CLOUD (Cosmics Leaving Outdoor Droplets) chamber. The simulations and a comparison with atmospheric observations show that nearly all nucleation throughout the present day atmosphere involves ammonia or biogenic organic compounds in addition to sulfuric acid. A considerable fraction of nucleation involves ions but the relatively weak dependence on ion concentrations indicates that for the processes studied variations in cosmic ray intensity do not appreciably affect climate through nucleation in the present day atmosphere.U http://science.sciencemag.org/content/sci/354/6316/1119.full.pdf
Science arrow_drop_down ScienceOther literature type . Article . 2016 . Peer-reviewedCaltech AuthorsArticle . 2016 . Peer-reviewedFull-Text: https://authors.library.caltech.edu/71775/5/Global%20atmospheric%20particle%20formation.pdfData sources: Caltech AuthorsInfoscience - EPFL scientific publicationsOther literature typeData sources: Infoscience - EPFL scientific publicationsadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1126/science.aaf2649&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 276 citations 276 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!visibility 34visibility views 34 download downloads 740 Powered bymore_vert Science arrow_drop_down ScienceOther literature type . Article . 2016 . Peer-reviewedCaltech AuthorsArticle . 2016 . Peer-reviewedFull-Text: https://authors.library.caltech.edu/71775/5/Global%20atmospheric%20particle%20formation.pdfData sources: Caltech AuthorsInfoscience - EPFL scientific publicationsOther literature typeData sources: Infoscience - EPFL scientific publicationsadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1126/science.aaf2649&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2018 FrancePublisher:American Association for the Advancement of Science (AAAS) Jan-Erik Wahlund; Michiko Morooka; Lina Hadid; A. M. Persoon; William M. Farrell; D. A. Gurnett; George Hospodarsky; William S. Kurth; Shengyi Ye; David Andrews; Niklas J. T. Edberg; Anders Eriksson; Erik Vigren;pmid: 29229651
Cassini enters Saturn's ionosphere The upper reaches of most planetary atmospheres contain a layer that is ionized by incoming solar radiation—the ionosphere. As it went through its final orbits around Saturn, the Cassini spacecraft dipped close enough to the planet to pass directly through the ionosphere. Wahlund et al. examined the plasma data collected in situ and found that Saturn's ionosphere is highly variable and interacts with the planet's inner ring. They also observed decreases in ionization within regions shaded from the Sun by the rings. Science , this issue p. 66
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1126/science.aao4134&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 40 citations 40 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1126/science.aao4134&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2018 FrancePublisher:Public Library of Science (PLoS) Di Cristofaro, Julie; Mazières, Stéphane; Tous, Audrey; Di Gaetano, Cornelia; Lin, Alice A.; Nebbia, Paul; Piazza, Alberto; King, Roy J.; Underhill, Peter; Chiaroni, Jacques;International audience; The rarity of human remains makes it difficult to apprehend the first settlements in Corsica. It is admitted that initial colonization could have occurred during the Mesolithic period when glaciations would have shortened the open water travel distance from the continent. Meso-lithic sites in Corsica show relatively short and irregular occupation, and suggest discontinu-ous settling of very mobile groups probably traveling by boat. Previous genetic studies on Corsican populations showed internal differentiation and a relatively poor genetic relationship with continental populations, despite intense historical contacts, however local Meso-lithic-based genetic inheritance has never been properly estimated. The aim of this study was to explore the Corsican genetic profile of Y-chromosomes in order to trace the genetic signatures back to the first migrations to Corsica. This study included 321 samples from men throughout Corsica; samples from Provence and Tuscany were added to the cohort. All samples were typed for 92 Y-SNPs, and Y-STRs were also analyzed. Results revealed highly differentiated haplogroup patterns among Corsican populations. Haplogroup G had the highest frequency in Corsica, mostly displaying a unique Y-STR profile. When compared with Provence and Tuscany, Corsican populations displayed limited genetic proximity. Cor-sican populations present a remarkable Y-chromosome genetic mixture. Although the Cor-sican Y-chromosome profile shows similarities with both Provence and to a lesser extent Tuscany, it mainly displays its own specificity. This study confirms the high level of genetic diversity in Corsican populations and backs genetic contributions from prehistoric migrations associated with the Mesolithic, Neolithic and Metal Age eras, rather than from historical movements to Corsica, respectively attested by frequencies and TMRCA of haplogroups G2a-L91 and G2a-P15, J2a-M241 and J2-DYS445 = 6, R1b-U152 and R1b-U106. These results suggest that marine routes to reach the Corsican coast in many different points may have led to such a genetic heterogeneity.
Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2018Full-Text: http://europepmc.org/articles/PMC6070208Data sources: PubMed CentralHAL AMU; Mémoires en Sciences de l'Information et de la CommunicationArticle . 2018License: CC BYFull-Text: https://hal.science/hal-01863090/documentHyper Article en Ligne - Sciences de l'Homme et de la Société; Hal-DiderotArticle . 2018License: CC BYadd 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.0200641&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 5 citations 5 popularity Average influence Average impulse Average Powered by BIP!more_vert Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2018Full-Text: http://europepmc.org/articles/PMC6070208Data sources: PubMed CentralHAL AMU; Mémoires en Sciences de l'Information et de la CommunicationArticle . 2018License: CC BYFull-Text: https://hal.science/hal-01863090/documentHyper Article en Ligne - Sciences de l'Homme et de la Société; Hal-DiderotArticle . 2018License: CC BYadd 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.0200641&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Article , Preprint 2022 Denmark, Germany, NetherlandsPublisher:Copernicus GmbH Funded by:ANR | RESTORE, EC | NunataryukANR| RESTORE ,EC| NunataryukM. Lizotte; B. Juhls; B. Juhls; B. Juhls; A. Matsuoka; A. Matsuoka; P. Massicotte; G. Mével; D. O. J. Anikina; S. Antonova; G. Bécu; M. Béguin; S. Bélanger; T. Bossé-Demers; T. Bossé-Demers; L. Bröder; F. Bruyant; G. Chaillou; J. Comte; R.-M. Couture; R.-M. Couture; E. Devred; G. Deslongchamps; T. Dezutter; M. Dillon; D. Doxaran; A. Flamand; F. Fell; J. Ferland; J. Ferland; M.-H. Forget; M. Fritz; T. J. Gordon; C. Guilmette; A. Hilborn; R. Hussherr; R. Hussherr; C. Irish; F. Joux; L. Kipp; A. Laberge-Carignan; A. Laberge-Carignan; H. Lantuit; E. Leymarie; A. Mannino; J. Maury; P. Overduin; L. Oziel; L. Oziel; C. Stedmon; C. Thomas; L. Tisserand; J.-É. Tremblay; J. Vonk; D. Whalen; M. Babin;Climate warming and related drivers of soil thermal change in the Arctic are expected to modify the distribution and dynamics of carbon contained in perennially frozen grounds. Thawing of permafrost in the Mackenzie Delta region of northwestern Canada, coupled with increases in river discharge and coastal erosion, trigger the release of terrestrial organic matter (OMt) from the largest Arctic drainage basin in North America into the Arctic Ocean. While this process is ongoing, well-established, and its rate is accelerating, the fate of the newly-mobilized organic matter, as it transits from the watershed through the delta and into the marine system, remains poorly understood. In the framework of the European Horizon 2020 Nunataryuk programme, and as part of the Work Package 4 (WP4) Coastal Waters theme, four field expeditions were conducted in the Mackenzie Delta region and southern Beaufort Sea from April to September 2019. The temporal sampling design allowed the survey of ambient conditions in the coastal waters under full ice cover prior to the spring freshet, during ice break-up in summer, as well as anterior to the freeze-up period in fall. To capture the fluvial-marine transition zone, and with distinct challenges related to shallow waters and changing seasonal and meteorological conditions, the field sampling was conducted in close partnership with members of the communities of Aklavik, Inuvik and Tuktoyaktuk, using several platforms: helicopters, snowmobiles and small boats. Water column profiles of physical and optical variables were measured in situ, while surface water, groundwater and sediment samples were collected and preserved for the determination of the composition and sources of OMt, including particulate and dissolved organic carbon (POC, DOC), and chromophoric dissolved organic matter (CDOM), as well as a suite of physical, chemical and biological variables. Here we present an overview of the standardized datasets, including hydrographic profiles, remote sensing reflectance, temperature and salinity, particle absorption, nutrients, dissolved organic carbon, particulate organic carbon, particulate organic nitrogen, colored dissolved organic matter absorption, fluorescent dissolved organic matter intensity, suspended particulate matter, total particulate carbon, total particulate nitrogen, stable water isotopes, radon in water, bacterial abundance, and a string of phytoplankton pigments including total chlorophyll. Datasets and related metadata can be found in Juhls et al. 2021. https://doi.pangaea.de/10.1594/PANGAEA.937587.
Earth System Science... arrow_drop_down https://doi.org/10.5194/essd-2...Preprint . 2022 . Peer-reviewedLicense: CC BYData sources: CrossrefElectronic Publication Information CenterArticle . 2023Data sources: Electronic Publication Information CenterOnline Research Database In TechnologyArticle . 2023Data sources: Online Research Database In TechnologyMémoires en Sciences de l'Information et de la CommunicationArticle . 2022License: CC BYFull-Text: https://hal.science/hal-03955929/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/essd-2022-163&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 2 citations 2 popularity Top 10% influence Average impulse Average Powered by BIP!more_vert Earth System Science... arrow_drop_down https://doi.org/10.5194/essd-2...Preprint . 2022 . Peer-reviewedLicense: CC BYData sources: CrossrefElectronic Publication Information CenterArticle . 2023Data sources: Electronic Publication Information CenterOnline Research Database In TechnologyArticle . 2023Data sources: Online Research Database In TechnologyMémoires en Sciences de l'Information et de la CommunicationArticle . 2022License: CC BYFull-Text: https://hal.science/hal-03955929/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/essd-2022-163&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2018 United KingdomPublisher:Elsevier BV Funded by:UKRI | Durham DiRAC-2 petascale ..., UKRI | Durham DiRAC-2 petascale ..., EC | COSMIWAY +3 projectsUKRI| Durham DiRAC-2 petascale facility ,UKRI| Durham DiRAC-2 petascale facility support ,EC| COSMIWAY ,UKRI| Durham Astronomy Consolidated Grant 2014-2017 ,UKRI| Quota Studentship 2012 ,UKRI| The Virgo consortium for cosmological supercomputer simulationsJohn Wilson; Vincent R. Eke; Richard Massey; Richard C. Elphic; William C. Feldman; Sylvestre Maurice; L. F. A. Teodoro;We present a map of the near subsurface hydrogen distribution on Mars, based on epithermal neutron data from the Mars Odyssey Neutron Spectrometer. The map's spatial resolution is approximately improved two-fold via a new form of the pixon image reconstruction technique. We discover hydrogen-rich mineralogy far from the poles, including ~10 wt. % water equivalent hydrogen (WEH) on the flanks of the Tharsis Montes and greater than 40 wt. % WEH at the Medusae Fossae Formation (MFF). The high WEH abundance at the MFF implies the presence of bulk water ice. This supports the hypothesis of recent periods of high orbital obliquity during which water ice was stable on the surface. We find the young undivided channel system material in southern Elysium Planitia to be distinct from its surroundings and exceptionally dry; there is no evidence of hydration at the location in Elysium Planitia suggested to contain a buried water ice sea. Finally, we find that the sites of recurring slope lineae (RSL) do not correlate with subsurface hydration. This implies that RSL are not fed by large, near-subsurface aquifers, but are instead the result of either small (less than 120 km diameter) aquifers, deliquescence of perchlorate and chlorate salts or dry, granular flows. Comment: Accepted for publication in Icarus, 16 pages, 12 figures
Durham Research Onli... arrow_drop_down Durham Research Online; IcarusArticle . 2018 . Peer-reviewedLicense: Elsevier TDMFull-Text: http://dro.dur.ac.uk/22714/1/22714.pdfhttps://doi.org/10.48550/arxiv...Article . 2017License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.icarus.2017.07.028&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 69 citations 69 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!more_vert Durham Research Onli... arrow_drop_down Durham Research Online; IcarusArticle . 2018 . Peer-reviewedLicense: Elsevier TDMFull-Text: http://dro.dur.ac.uk/22714/1/22714.pdfhttps://doi.org/10.48550/arxiv...Article . 2017License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.icarus.2017.07.028&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu