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openurl 
  Title Ecological Dynamics Across the Arctic Associated with Recent Climate Change Type Journal
  Year 2009 Publication Science Abbreviated Journal  
  Volume 325 Issue (down) 5946 Pages 1355-1358  
  Keywords  
  Abstract At the close of the Fourth International Polar Year, we take stock of the ecological consequences of recent climate change in the Arctic, focusing on effects at population, community, and ecosystem scales. Despite the buffering effect of landscape heterogeneity, Arctic ecosystems and the trophic relationships that structure them have been severely perturbed. These rapid changes may be a bellwether of changes to come at lower latitudes and have the potential to affect ecosystem services related to natural resources, food production, climate regulation, and cultural integrity. We highlight areas of ecological research that deserve priority as the Arctic continues to warm.  
  Programme 1036  
  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 0036-8075, 1095-9203 ISBN 0036-8075, 1095-9203 Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 7250  
Permanent link to this record
 
 
Author Morin, S.; Savarino, J.; Frey, M.M.; Yan, N.; Bekki, S.; Bottenheim, J.W.; Martins, J.M.F. url  openurl
  Title Tracing the Origin and Fate of NOx in the Arctic Atmosphere Using Stable Isotopes in Nitrate Type Journal Article
  Year 2008 Publication Science Abbreviated Journal Science  
  Volume 322 Issue (down) 5902 Pages 730-732  
  Keywords  
  Abstract Atmospheric nitrogen oxides (NOx =NO+ NO2) play a pivotal role in the cycling of reactive nitrogen (ultimately deposited as nitrate) and the oxidative capacity of the atmosphere. Combined measurements of nitrogen and oxygen stable isotope ratios of nitrate collected in the Arctic atmosphere were used to infer the origin and fate of NOx and nitrate on a seasonal basis. In spring, photochemically driven emissions of reactive nitrogen from the snowpack into the atmosphere make local oxidation of NOx by bromine oxide the major contributor to the nitrate budget. The comprehensive isotopic composition of nitrate provides strong constraints on the relative importance of the key atmospheric oxidants in the present atmosphere, with the potential for extension into the past using ice cores.  
  Programme 1011  
  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 0036-8075 ISBN Medium  
  Area Expedition Conference  
  Notes 10.1126/science.1161910 Approved yes  
  Call Number IPEV @ Thierry.Lemaire @ Serial 5513  
Permanent link to this record
 
 
Author Gerday C., Aittaleb M., Arpigny J.L., Baise E., Chessa J.P., Francois J.M., Garsoux G., Petrescu I. & Feller G. openurl 
  Title Type Journal Article
  Year 1997 Publication Chimie nouvelle Abbreviated Journal  
  Volume 15 Issue (down) 59 Pages 1811-1817  
  Keywords  
  Abstract  
  Programme 165  
  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 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 2039  
Permanent link to this record
 
 
Author Steffensen, J.P.; Andersen, K.K.; Bigler, M.; Clausen, H.B.; Dahl-Jensen, D.; Fischer, H.; Goto-Azuma, K.; Hansson, M.; Johnsen, S.J.; Jouzel, J.; Masson-Delmotte, V.; Popp, T.; Rasmussen, S.O.; Rothlisberger, R.; Ruth, U.; Stauffer, B.; Siggaard-Andersen, M.-L.; Sveinbjornsdottir, A.E.; Svensson, A.; White, J.W.C. url  openurl
  Title High-Resolution Greenland Ice Core Data Show Abrupt Climate Change Happens in Few Years Type Journal Article
  Year 2008 Publication Science Abbreviated Journal Science  
  Volume 321 Issue (down) 5889 Pages 680-684  
  Keywords  
  Abstract The last two abrupt warmings at the onset of our present warm interglacial period, interrupted by the Younger Dryas cooling event, were investigated at high temporal resolution from the North Greenland Ice Core Project ice core. The deuterium excess, a proxy of Greenland precipitation moisture source, switched mode within 1 to 3 years over these transitions and initiated a more gradual change (over 50 years) of the Greenland air temperature, as recorded by stable water isotopes. The onsets of both abrupt Greenland warmings were slightly preceded by decreasing Greenland dust deposition, reflecting the wetting of Asian deserts. A northern shift of the Intertropical Convergence Zone could be the trigger of these abrupt shifts of Northern Hemisphere atmospheric circulation, resulting in changes of 2 to 4 kelvin in Greenland moisture source temperature from one year to the next.  
  Programme 458  
  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 0036-8075 ISBN Medium  
  Area Expedition Conference  
  Notes 10.1126/science.1157707 Approved yes  
  Call Number IPEV @ Thierry.Lemaire @ Serial 5524  
Permanent link to this record
 
 
Author Stephens, B.B.; Gurney, K.R.; Tans, P.P.; Sweeney, C.; Peters, W.; Bruhwiler, L.; Ciais, P.; Ramonet, M.; Bousquet, P.; Nakazawa, T.; Aoki, S.; Machida, T.; Inoue, G.; Vinnichenko, N.; Lloyd, J.; Jordan, A.; Heimann, M.; Shibistova, O.; Langenfelds, R.L.; Steele, L.P.; Francey, R.J.; Denning, A.S. url  openurl
  Title Weak Northern and Strong Tropical Land Carbon Uptake from Vertical Profiles of Atmospheric CO2 Type Journal Article
  Year 2007 Publication Science Abbreviated Journal Science  
  Volume 316 Issue (down) 5832 Pages 1732-1735  
  Keywords  
  Abstract Measurements of midday vertical atmospheric CO2 distributions reveal annual-mean vertical CO2 gradients that are inconsistent with atmospheric models that estimate a large transfer of terrestrial carbon from tropical to northern latitudes. The three models that most closely reproduce the observed annual-mean vertical CO2 gradients estimate weaker northern uptake of -1.5 petagrams of carbon per year (Pg C year-1) and weaker tropical emission of +0.1 Pg C year-1 compared with previous consensus estimates of -2.4 and +1.8 Pg C year-1, respectively. This suggests that northern terrestrial uptake of industrial CO2 emissions plays a smaller role than previously thought and that, after subtracting land-use emissions, tropical ecosystems may currently be strong sinks for CO2.  
  Programme 416  
  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 0036-8075 ISBN Medium  
  Area Expedition Conference  
  Notes 10.1126/science.1137004 Approved yes  
  Call Number IPEV @ Thierry.Lemaire @ Serial 5525  
Permanent link to this record
 
 
Author Le Quere, C.; Rodenbeck, C.; Buitenhuis, E.T.; Conway, T.J.; Langenfelds, R.; Gomez, A.; Labuschagne, C.; Ramonet, M.; Nakazawa, T.; Metzl, N.; Gillett, N.; Heimann, M. url  doi
openurl 
  Title Saturation of the Southern Ocean CO2 Sink Due to Recent Climate Change Type Book Chapter
  Year 2007 Publication Science Abbreviated Journal Science  
  Volume Issue (down) 5832 Pages 1735-1738  
  Keywords  
  Abstract Based on observed atmospheric CO2 concentration and an inverse method, we estimate that the Southern Ocean sink of CO2 has weakened between 1981 and 2004 by 0.08 PgC/y per decade relative to the trend expected from the large increase in atmospheric CO2. This weakening is attributed to the observed increase in Southern Ocean winds resulting from human activities and projected to continue in the future. Consequences include a reduction in the efficiency of the Southern Ocean sink of CO2 in the short term (~25 years) and possibly a higher level of stabilization of atmospheric CO2 on a multicentury time scale.  
  Programme 416;439  
  Campaign  
  Address  
  Corporate Author Thesis Bachelor's thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0036-8075 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number IPEV @ Thierry.Lemaire @ Serial 5586  
Permanent link to this record
 
 
Author Baroni, M.; Thiemens, M.H.; Delmas, R.J.; Savarino, J. url  openurl
  Title Mass-Independent Sulfur Isotopic Compositions in Stratospheric Volcanic Eruptions Type Journal Article
  Year 2007 Publication Science Abbreviated Journal Science  
  Volume 315 Issue (down) 5808 Pages 84-87  
  Keywords  
  Abstract The observed mass-independent sulfur isotopic composition ({Delta}33S) of volcanic sulfate from the Agung (March 1963) and Pinatubo (June 1991) eruptions recorded in the Antarctic snow provides a mechanism for documenting stratospheric events. The sign of {Delta}33S changes over time from an initial positive component to a negative value. {Delta}33S is created during photochemical oxidation of sulfur dioxide to sulfuric acid on a monthly time scale, which indicates a fast process. The reproducibility of the results reveals that {Delta}33S is a reliable tracer to chemically identify atmospheric processes involved during stratospheric volcanism.  
  Programme 457;1011  
  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 0036-8075 ISBN Medium  
  Area Expedition Conference  
  Notes 10.1126/science.1131754 Approved yes  
  Call Number IPEV @ Thierry.Lemaire @ Serial 5612  
Permanent link to this record
 
 
Author BellotHerve, TrouvilliezAlexandre, Naaim-BouvetFlorence, GenthonChristophe, GalleeHubert, doi  openurl
  Title Present weather-sensor tests for measuring drifting snow Type Journal Article
  Year 2011 Publication ANNALS OF GLACIOLOGY Abbreviated Journal  
  Volume 52 Issue (down) 58 Pages 176-184  
  Keywords  
  Abstract In Antarctica, blowing snow accounts for a major component of the surface mass balance near the coast. Measurements of precipitation and blowing snow are scarce, and therefore collected data would allow testing of numerical models of mass flux over this region. A present weather station (PWS), Biral VPF730, was set up on the coast at Cap Prud'homme station, 5 km from Dumont d'Urville (DDU), principally to quantify precipitation. Since we expected to be able to determine blowing-snow fluxes from the PWS data, we tested this device first on our experimental site, the Lac Blanc pass. An empirical calibration was made with a snow particle counter. Although the physics of the phenomenon was not well captured, the flux outputs were better than those from FlowCapts. The first data from Antarctica were reanalyzed. The new calibration seems to be accurate for estimating the high blowing-snow flux with an interrogation of the precipitation effects.
 
  Programme 1013  
  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 0260-3055 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 3424  
Permanent link to this record
 
 
Author doi  openurl
  Title Present weather-sensor tests for measuring drifting snow Type Journal Article
  Year 2011 Publication Annals of Glaciology Abbreviated Journal 0260-3055  
  Volume 52 Issue (down) 58 Pages 176-184  
  Keywords  
  Abstract In Antarctica, blowing snow accounts for a major component of the surface mass balance near the coast. Measurements of precipitation and blowing snow are scarce, and therefore collected data would allow testing of numerical models of mass flux over this region. A present weather station (PWS), Biral VPF730, was set up on the coast at Cap Prud'homme station, 5 km from Dumont d'Urville (DDU), principally to quantify precipitation. Since we expected to be able to determine blowing-snow fluxes from the PWS data, we tested this device first on our experimental site, the Lac Blanc pass. An empirical calibration was made with a snow particle counter. Although the physics of the phenomenon was not well captured, the flux outputs were better than those from FlowCapts. The first data from Antarctica were reanalyzed. The new calibration seems to be accurate for estimating the high blowingsnow flux with an interrogation of the precipitation effects.  
  Programme 411  
  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 0260-3055 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 4231  
Permanent link to this record
 
 
Author Masson-Delmotte, V.; Jouzel, J.; Landais, A.; Stievenard, M.; Johnsen, S.J.; White, J.W.C.; Werner, M.; Sveinbjornsdottir, A.; Fuhrer, K. url  openurl
  Title GRIP Deuterium Excess Reveals Rapid and Orbital-Scale Changes in Greenland Moisture Origin Type Journal Article
  Year 2005 Publication Science Abbreviated Journal Science  
  Volume 309 Issue (down) 5731 Pages 118-121  
  Keywords  
  Abstract The Northern Hemisphere hydrological cycle is a key factor coupling ice sheets, ocean circulation, and polar amplification of climate change. Here we present a Northern Hemisphere deuterium excess profile covering one climatic cycle, constructed with the use of {delta}18O and {delta}D Greenland Ice Core Project (GRIP) records. Past changes in Greenland source and site temperatures are quantified with precipitation seasonality taken into account. The imprint of obliquity is evidenced in the site-to-source temperature gradient at orbital scale. At the millennial time scale, GRIP source temperature changes reflect southward shifts of the geographical locations of moisture sources during cold events, and these rapid shifts are associated with large-scale changes in atmospheric circulation.  
  Programme 458  
  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 0036-8075 ISBN Medium  
  Area Expedition Conference  
  Notes 10.1126/science.1108575 Approved yes  
  Call Number IPEV @ Thierry.Lemaire @ Serial 5507  
Permanent link to this record
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