Articles | Volume 10, issue 2
https://doi.org/10.5194/tc-10-837-2016
https://doi.org/10.5194/tc-10-837-2016
Research article
 | 
15 Apr 2016
Research article |  | 15 Apr 2016

Acquisition of isotopic composition for surface snow in East Antarctica and the links to climatic parameters

Alexandra Touzeau, Amaëlle Landais, Barbara Stenni, Ryu Uemura, Kotaro Fukui, Shuji Fujita, Sarah Guilbaud, Alexey Ekaykin, Mathieu Casado, Eugeni Barkan, Boaz Luz, Olivier Magand, Grégory Teste, Emmanuel Le Meur, Mélanie Baroni, Joël Savarino, Ilann Bourgeois, and Camille Risi

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Revised manuscript not accepted
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Cited articles

Altnau, S., Schlosser, E., Isaksson, E., and Divine, D.: Climatic signals from 76 shallow firn cores in Dronning Maud Land, East Antarctica, The Cryosphere, 9, 925–944, https://doi.org/10.5194/tc-9-925-2015, 2015.
Barkan, E. and Luz, B.: Diffusivity fractionations of H2 16O/H217O and H216O/H218O in air and their implications for isotope hydrology, Rapid Commun. Mass Spectrom., 21, 2999–3005, 2007.
Barkan, E. and Luz, B.: High precision measurements of 17O/16O and 18O/16O ratios in H2O, Rapid Commun. Mass Spectrom., 19, 3737–3742, 2005.
Becagli, S., Proposito, M., Benassai, S., Flora, O., Genoni, L., Gragnani, R., Largiuni, O., Pili, S. L., Severi, M., Stenni, B., Traversi, R., Udisti, R., and Frezzotti, M.: Chemical and isotopic snow variability in East Antarctica along the 2001/02 ITASE traverse, Ann. Glaciol., 39, 473–482, 2004.
Casado, M., Landais, A., Masson-Delmotte, V., Genthon, C., Kerstel, E., Kassi, S., Arnaud, L., Picard, G., Prie, F., Cattani, O., Steen-Larsen, H.-C., Vignon, E., and Cermak, P.: Continuous measurements of isotopic composition of water vapour on the East Antarctic Plateau, Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2016-8, in review, 2016.
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Short summary
The relationship between water isotope ratios and temperature is investigated in precipitation snow at Vostok and Dome C, as well as in surface snow along traverses. The temporal slope of the linear regression for the precipitation is smaller than the geographical slope. Thus, using the latter could lead to an underestimation of past temperature changes. The processes active at remote sites (best glacial analogs) are explored through a combination of water isotopes in short snow pits.