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Author Hippolyte LEURIDAN (based in LSCE, internship will be supervised both by LSCE - Michel RAMONET -, and IGE - Olivier MAGAND-, laboratories) openurl 
  Title Investigation of Radon measurements as a tracer of atmospheric mercury sources using Amsterdam Island records (Indian Ocean) Type Master 2
  Year 2021 Publication Internship from soac master (air quality thema) Abbreviated Journal  
  Volume Issue Pages  
  Keywords  
  Abstract Since The Signature Of The Minamata Convention On Mercury In 2017, National Regulation Coordinated At An International Level Will Come Into Force In Order To Limit Anthropogenic Emissions And Therefore Protect The Human Health And Ecosystem From This Highly Toxic Pollutant. One Need To Evaluate The Efficiency Of National Measures, And Long-term Monitoring Of Atmospheric Mercury (Hg) Is An Important Tool To Address The Changes Over Time Of Emission Sources, Transport, And Deposition Patterns.the Global Mercury Observation System (Gmos) Project Was Funded By The European Commission (Http://www.gmos.eu) And Started In November 2010 With The Overall Goal To Develop A Coordinated Global Observing System To Monitor Hg On A Global Scale, Including A Large Network Of Ground-based Monitoring Stations. To Date, More Than 40 Ground-based Monitoring Sites Constitute The Global Network Covering Many Regions Where Little To No Observational Data Were Available Before Gmos (Sprovieri Et Al., 2016). All Gmos Work Is Now Continued In The Framework Of The International Frame Work Of Gos4m (Global Observation System For Mercury – Http://www.gos4m.org)although Essential To Fully Understand The Cycling Of Mercury At The Global Scale, Mercury Species Records In The Southern Hemisphere Were Really Scarce Before Gmos. In This Context, An Atmospheric Mercury Monitoring Station Has Been Set Up On Amsterdam Island (37?48 S, 77?34 E) In The Remote Southern Indian Ocean In 2012. Since 2012, We Continuously Measured Gaseous Mercury Species With A 15 Min Frequency. Angot Et Al. (2014) Discussed The First Two Years Of This Record, Using Principally Wind Sector Analysis And Air Mass Back Trajectories. They Also Include In Their Analysis The Unique Continuous Record Of Radon 222 And 220 (Thoron) (Polian Et Al., 1986; Kritz Et Al., 1990). Radon 222 And 220 (Thoron) Activities Can Be Used To Distinguish Local Soil Outgassing From Remote Continental Source. Combined With Meteorological Data, The Change Of Activities Are Then Powerful Tool To Classify Air Mass Origin For The Atmospheric Gaseous Mercury Record. Rapid And Sharp Variations Of Radon 222 Activity, Referred To As &Ldquo;radonic Storms” (Lambert Et Al., 1970) And Ascribed To Strong Continental Air Mass Advection, Are Then Observed At Amsterdam Island. The Occurrence Of Radonic Storms Was Estimated To Be About 4 % In 2012 And 7 % In 2013. Considering The Works Realized In 2014, The Goal Of This Internship Is To Deeper Explore The Relationships Between The Collected Gaseous Elemental Mercury And Observed Radon (222rn / 220rn) Activities In The Entire Data Set. In Particular, We Will Study The Specific And Coupled Trend Of These Compounds, The Frequency And Intensity Of Radonic Storm Occurrence And Their Potential Link With The Gaseous Elemental Mercury Cycle. Local Meteorology Data As Well As Backtrajectories Simulation (Hysplit And/or Flexpart Model) Will Be Also Used.  
  Programme 1028  
  Campaign  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
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  ISSN ISBN (up) Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 8055  
Permanent link to this record
 

 
Author Cyrielle Solis (Based In Lsce, Internship Will Be Supervised Both By Lsce - Amaelle Landais, Françoise Vimeux -, And Ige - Olivier Magand-, Laboratories) openurl 
  Title Isotopic signature of atmospheric dynamics on the island of Amsterdam and link to large-scale moisture transport Type Master 2
  Year 2021 Publication Internship from man and biosphere master Abbreviated Journal  
  Volume Issue Pages  
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  Abstract Climate And Water Cycle Reconstruction Over The Last Centuries And Prediction Should Be Improved In The Southern Hemisphere (E.g. Last Ipcc Report). First, Direct Observations Are Scarce (E.g. In Antarctica, Mainly Basic Automatic Weather Station – Aws – Only Since The 50’s And Satellite Observations). As A Consequence, Climate And Water Cycle Reconstructions Are Largely Dependent On Proxy Measurements Such As Water Isotopes In Polar Ice Cores, Even Over The Last Century. Second, Climate And Water Cycle Reconstructions Using Models Should Be Improved. In Particular, Problems Have Been Identified For (1) Estimation Of Precipitation Amounts (Large Discrepancies Among Models Over The Austral Ocean And The Ice-sheet), (2) Description Of Particular Atmospheric Processes Associated With Cloud Microphysics And Exchanges Between Surface And Atmosphere In Polar Regions And (3) Seasonal To Interannual Evolution Of The Locations Of The Westerlies And Subtropical Jet And Associated Air Mass Trajectories. The Last Aspect Has Important Direct Consequences For The Atmospheric Dynamics In This Region But Also Indirect Consequences Such As The Links Between Westerlies, Co2 Outgassing And Sea Ice Extent In The Austral Ocean (Saunders Et Al. 2018; Menviel Et Al. 2018; Holland And Kwok, 2012). With The Objectives To Provide (1) A Better Description Of Water Cycle Dynamic In The Southern Ocean At Annual And Interannual Scales And (2) An Improved Transfer Function Between Climate / Water Cycle And Water Isotopes In This Region, A Bunch Of Instruments Measuring Continuously The Isotopic Composition Of Water In The Water Vapor And In The Precipitation Has Been Installed Over The Last Years Along A Transect From La Réunion To Antarctica.first Results From The Antarctic Instruments Reveal Clear Isotopic Signatures Of Large Scale Water Cycle Features Such As Atmospheric Rivers Dominating The Surface Mass Balance In Antarctica. In La Réunion, An Extensive Study Of The Drivers Of The Isotopic Composition Of The Water Vapor Showed That The Influence Of The Subtropical Westerly Jet Dominates The Water Isotopic Signal At Night. To Connect The Two Regions, An Instrument Is Running On Amsterdam Island Since November 2019 With First Results Showing A Clear Isotopic Signature During The High Pressure And Low Pressure Synoptic Events. Still, No In-depth Study Of The Data Trying To Connect The Isotopic Record In Amsterdam Island To Larger Scale Patterns Of The Water Cycle Has Been Initiated.the Goal Of This Internship Is To Provide The First Analyses Of The Isotopic (Water Vapor And Precipitation) Records On Amsterdam Island With A Comparison With Meteorological Data And Environmental Data Collected In Parallel On The Observatory Of Amsterdam Island (E.g. Gaseous Elemental Mercury). After These First Analyses Of The Data, Comparisons Will Be Performed With Water Isotopic Records In La Réunion Over Selected Events (Subtropical Jet Or Cold Fronts Intrusions). This Study Will Involve Analyses Of Meteorological Maps As Well As Backtrajectories.this Internship Requires Skills For (Python Or R Languages) And Involves Large Interactions Within A Large Research Team.  
  Programme 1028  
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  Corporate Author Thesis  
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  ISSN ISBN (up) Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 8056  
Permanent link to this record
 

 
Author doi  openurl
  Title Mercury in precipitated and surface snow at Dome C and a first estimate of mercury depositional fluxes during the Austral summer on the high Antarctic plateau Type Journal
  Year 2021 Publication Atmospheric Environment Abbreviated Journal  
  Volume 262 Issue Pages 118634  
  Keywords Atmospheric conditions High resolution sampling Snow scavenging factor Snow sublimation  
  Abstract  
  Programme 1028  
  Campaign  
  Address  
  Corporate Author Thesis  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1352-2310 ISBN (up) Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 8057  
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Author file  doi
openurl 
  Title Spatial segregation in a sexually dimorphic central place forager: Competitive exclusion or niche divergence? Type Journal
  Year 2021 Publication Journal of Animal Ecology Abbreviated Journal  
  Volume 90 Issue 10 Pages 2404-2420  
  Keywords bio-logging central place foraging ecological niche theory intraspecific competition kernel density estimates resource selection functions sexual segregation wandering albatross  
  Abstract  
  Programme 109,394  
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  Address  
  Corporate Author Thesis Bachelor's thesis  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1365-2656 ISBN (up) Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 8093  
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Author doi  openurl
  Title Biological invasions in France: Alarming costs and even more alarming knowledge gaps Type Journal
  Year 2021 Publication NeoBiota Abbreviated Journal  
  Volume 67 Issue Pages 191-224  
  Keywords  
  Abstract  
  Programme 136  
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  Corporate Author Thesis  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1314-2488 ISBN (up) Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 8094  
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Author doi  openurl
  Title Similar circling movements observed across marine megafauna taxa Type Journal
  Year 2021 Publication iScience Abbreviated Journal  
  Volume 24 Issue 4 Pages 102221  
  Keywords Animals Biological Sciences Ecology Ethology Zoology  
  Abstract Advances in biologging technology have enabled 3D dead-reckoning reconstruction of marine animal movements at spatiotemporal scales of meters and seconds. Examining high-resolution 3D movements of sharks (Galeocerdo cuvier, N = 4; Rhincodon typus, N = 1), sea turtles (Chelonia mydas, N = 3), penguins (Aptenodytes patagonicus, N = 6), and marine mammals (Arctocephalus gazella, N = 4; Ziphius cavirostris, N = 1), we report the discovery of circling events where animals consecutively circled more than twice at relatively constant angular speeds. Similar circling behaviors were observed across a wide variety of marine megafauna, suggesting these behaviors might serve several similar purposes across taxa including foraging, social interactions, and navigation.  
  Programme 394  
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  Corporate Author Thesis  
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  Series Volume Series Issue Edition  
  ISSN 2589-0042 ISBN (up) Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 8095  
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Author Buscetti, M. openurl 
  Title Influence of geomagnetic storms on seismometers Type Master 2
  Year 2021 Publication Eost, Strasbourg Abbreviated Journal  
  Volume Issue Pages  
  Keywords  
  Abstract  
  Programme 139  
  Campaign  
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  Corporate Author Thesis  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN (up) Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 8099  
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Author Alexandra Lavrillier, Semen Gabyshev doi  openurl
  Title An Indigenous science of the climate change impacts on landscape topography in Siberia Type Journal
  Year 2021 Publication Ambio Abbreviated Journal  
  Volume 50 Issue 11 Pages 1910-1925  
  Keywords  
  Abstract  
  Programme 1127  
  Campaign  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1654-7209 ISBN (up) Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 7627  
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Author Alexander L. Bond, Christopher Taylor, David Kinchin-Smith, Derren Fox, Emma Witcutt, Peter G. Ryan, Simon P. Loader, Henri Weimerskirch doi  openurl
  Title A juvenile Tristan albatross (Diomedea dabbenena) on land at the Crozet Islands Type Journal
  Year 2021 Publication Polar Biology Abbreviated Journal  
  Volume 44 Issue 1 Pages 229-233  
  Keywords  
  Abstract Albatrosses and other seabirds are generally highly philopatric, returning to natal colonies when they achieve breeding age. This is not universal, however, and cases of extraordinary vagrancy are rare. The Tristan Albatross (Diomedea dabbenena) breeds on Gough Island in the South Atlantic Ocean, with a small population on Inaccessible Island, Tristan da Cunha, ca 380 km away. In 2015, we observed an adult male albatross in Gonydale, Gough Island, which had been ringed on Ile de la Possession, Crozet Islands in 2009 when it was assumed to be an immature Wandering Albatross (D. exulans). We sequenced 1109 bp of the cytochrome b mitochondrial gene from this bird, and confirmed it to be a Tristan Albatross, meaning its presence on Crozet 6 years previous, and nearly 5000 km away, was a case of prospecting behaviour in a heterospecific colony. Given the challenges in identifying immature Diomedea albatrosses, such dispersal events may be more common than thought previously.  
  Programme 109  
  Campaign  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1432-2056 ISBN (up) Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 8083  
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Author Marina Renedo, Zoyne Pedrero, David Amouroux, Yves Cherel, Paco Bustamante doi  openurl
  Title Mercury isotopes of key tissues document mercury metabolic processes in seabirds Type Journal
  Year 2021 Publication Chemosphere Abbreviated Journal  
  Volume 263 Issue Pages 127777  
  Keywords Demethylation Detoxification Metabolism Methylmercury Moult  
  Abstract  
  Programme 109  
  Campaign  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0045-6535 ISBN (up) Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 8084  
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