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Schlosser, Elisabeth; Reijmer, Carleen H; Oerter, Hans; Graf, Wolfgang (2003): Isotope values of fresh snow samples and daily temperature from Neumayer station in the period 1981-2000. PANGAEA,, 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,

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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.
Related to:
Schlosser, Elisabeth; Oerter, Hans; Masson-Delmotte, Valerie; Reijmer, Carleen H (2008): Atmospheric influence on the deuterium excess signal in polar firn: implications for ice core interpretation. Journal of Glaciology, 54(184), 117-124,
Glaciology @ AWI (AWI_Glac)
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
Neumayer (WMO89002) * Latitude: -70.650000 * Longitude: -8.250000 * Date/Time: 1993-01-01T00:00:00 * Elevation Start: 40.0 m * Elevation End: -999.0 m * Location: Dronning Maud Land, Antarctica * Campaign: Neumayer_based * Basis: NEUMAYER III * Method/Device: Research station (RS)
Isotope measurements 1981-1999 by GSF, 2000 by AWI.
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
2δ DeuteriumδD‰ SMOWOerter, Hansaccuracy = 1 per mil
3δ18O, waterδ18O H2O‰ SMOWOerter, Hansaccuracy = 0.1 per mil
4Deuterium excessd xsOerter, HansCalculatedd=d2H - 8*d18O
5Temperature, airTTT°COerter, Hans2 m above snow surface
1342 data points

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