Schlosser, Elisabeth; Reijmer, Carleen; Oerter, Hans; Graf, Wolfgang (2003): Isotope values of fresh snow samples and daily temperature from Neumayer station in the period 1981-2000. PANGAEA, https://doi.org/10.1594/PANGAEA.119750, Supplement to: Schlosser, E et al. (2004): The influence of origin of precipitation on the d18O-T relationship at Neumayer Station, Ekströmisen, Antarctica. Annals of Glaciology, 39, 41-48, https://doi.org/10.3189/172756404781814276
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The relationship between d18O and air temperature at Neumayer station, Ekströmisen, Antarctica, was investigated using fresh-snow samples from the time period 1981-2000. A trajectory model that calculated 5 day-backward trajectories was used to study the influence of different synoptic weather situations and thus of different moisture sources on this correlation. Generally a high correlation between air temperature and d18O was found, but the quality of the d18O-T relationship varied with the different trajectory classes. Additionally, the sea-ice coverage on the travel path of the moist air was considered. The amount of open ocean water underneath the trajectory has a large influence on the d18O-T relationship. For trajectories that lead completely above open water, no significant correlation between d18O and T was found, because mixing with air masses containing additionally evaporated water vapour from the ocean influences the isotope ratio of precipitation. A very high correlation, however, was found for transports over the completely ice-covered Weddell Sea.
Latitude: -70.650000 * Longitude: -8.250000
Date/Time Start: 1981-04-05T00:00:00 * Date/Time End: 2000-09-28T00:00:00
Minimum Elevation: -999.0 m * Maximum Elevation: 40.0 m
Isotope measurements 1981-1999 by GSF, 2000 by AWI.
|#||Name||Short Name||Unit||Principal Investigator||Method||Comment|
|2||δ Deuterium||δD||‰ SMOW||Oerter, Hans||accuracy = 1 per mil|
|3||δ18O, water||δ18O H2O||‰ SMOW||Oerter, Hans||accuracy = 0.1 per mil|
|4||Deuterium excess||d xs||‰||Oerter, Hans||Calculated||d=d2H - 8*d18O|
|5||Temperature, air||TTT||°C||Oerter, Hans||2 m above snow surface|
1342 data points