@misc{goursaud2018ttws, author={Sentia {Goursaud} and Valerie {Masson-Delmotte} and Vincent {Favier} and Suzanne {Preunkert} and Michel R {Legrand} and B\'{e}n\'{e}dicte {Minster}}, title={{The TA192A water stable isotope and chemical firn core records , Ad\'{e}lie Land, Antarctica}}, year={2018}, doi={10.1594/PANGAEA.896623}, url={https://doi.org/10.1594/PANGAEA.896623}, note={Supplement to: Goursaud, Sentia; Masson-Delmotte, Valerie; Favier, Vincent; Preunkert, Suzanne; Legrand, Michel; Minster, B\'{e}n\'{e}dicte; Werner, Martin (2019): Challenges associated with the climatic interpretation of water stable isotope records from a highly resolved firn core from Ad\'{e}lie Land, coastal Antarctica. The Cryosphere, 13(4), 1297-1324, https://doi.org/10.5194/tc-13-1297-2019}, abstract={A new 21.3m firn core was drilled in 2015 at a coastal Antarctic high accumulation site in Ad\'{e}lie Land (66.78{\textdegree}S; 139.56{\textdegree}E, 602ma.s.l.). The core was dated by annual layers counting based on non-sea-salt sulfate and methanesulfonate summer peaks, refined by a comparison between the reconstructed surface mass balance (hereafter, SMB) and the closest available stake data. The mean reconstructed SMB of 75.2 $\pm$ 15.0cmw.e. y-1 is consistent with local stake data, and remarkably high for coastal East Antarctica. The resulting inter-annual and sub-annual variations in isotopic records ($\delta$18O and deuterium excess, hereafter d-excess) are explored for 1998{\textendash}2014 and are systematically compared with a couple of climatic time series: an updated database of Antarctic surface snow isotopic composition, SMB stake data, meteorological observations from Dumont d{\textquotesingle}Urville station, sea-ice concentration based on passive microwave satellite data, precipitation outputs of atmospheric reanalyses, climate and water stable isotope outputs from the atmospheric general circulation model ECHAM5-wiso, as well as air mass origins diagnosed using 5-days back-trajectories.\\ \\ The mean isotopic values (-19.3 $\pm$ 3.1{\textperthousand} for $\delta$18O and 5.4 $\pm$ 2.2{\textperthousand} for d-excess) are consistent with other coastal Antarctic values. No significant isotope-temperature relationship can be evidenced at any timescale, ruling out a simple interpretation of in terms of local temperature. An observed asymmetry in the $\delta$18O seasonal cycle may be explained by the precipitation of air masses coming from Indian and Pacific/West Antarctic Ice Sheet sectors in autumn and winter times, recorded in the d-excess signal showing outstanding values in austral spring versus autumn. Significant positive trends are observed in the annual d-excess record and local sea-ice extent (135{\textdegree}E{\textendash}145{\textdegree}E) over the period 1998{\textendash}2014.\\ \\ However, processes studies focusing on resulting isotopic compositions and particularly the d-excess-$\delta$18O relationship, evidenced as a potential fingerprint of moisture origins, as well as the collection of more isotopic measurements in Ad\'{e}lie Land are needed for an accurate interpretation of our signals.}, type={data set}, publisher={PANGAEA} }