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Schlosser, Elisabeth; Oerter, Hans (2002): Comparison of accumulation rates and stable isotope ratios [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.690398, Supplement to: Schlosser, E; Oerter, H (2002): Shallow firn cores from Neumayer, Ekströmisen, Antarctica: a comparison of accumulation rates and stable-isotope ratios. Annals of Glaciology, 35, 91-96, https://doi.org/10.3189/172756402781816915

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Abstract:
Since 1979/80, glaciological studies have been carried out at Ekströmisen, Antarctica, including accumulation-stake measurements, snow-pit and shallow-firn-core studies. Snowstratigraphy, chemical properties and stable-isotope ratios (d18O) were investigated. This study focuses on three cores taken between 1982 and 1998. The 1998 core was dated using dielectric profiling, d18O profiles and stake measurements. Accumulation rates showhigh interannual and spatial variability due to the extreme wind influence. No significant trend was found for the last 50 years; during the first half of the 20th century, accumulation decreased. The high spatial and interannual variability, however, means that trends must be interpreted with care. In spite of the highly irregular accumulation distribution, stable-isotope ratios show little spatial variability. The mean annual d18O values of cores B04 and FB0198 agree fairly well for the time period 1955-82 covered by both cores. d18O values have increased during most of the 20th century; since the late 1980s a decrease is observed. This change is not related to air temperature, since mean annual air temperatures at Neumayer show no significant trend over the last two decades.
Project(s):
Glaciology @ AWI (AWI_Glac)
Coverage:
Median Latitude: -70.735078 * Median Longitude: -8.357300 * South-bound Latitude: -71.166667 * West-bound Longitude: -8.426667 * North-bound Latitude: -70.616700 * East-bound Longitude: -8.252500
Date/Time Start: 1982-02-26T00:00:00 * Date/Time End: 2000-12-24T00:00:00
Event(s):
NM01C82_04 (B04) * Latitude: -70.616700 * Longitude: -8.366700 * Date/Time: 1982-02-26T00:00:00 * Elevation: 28.0 m * Recovery: 51.65 m * Location: Dronning Maud Land, Antarctica * Campaign: Neumayer_based * Basis: NEUMAYER III * Method/Device: Ice drill (ICEDRILL) * Comment: Drilling started at the ground level of "Fahrzeughalle" of the Georg-von-Neumayer station
NM02A92_00 * Latitude: -71.166667 * Longitude: -8.400000 * Date/Time Start: 1992-03-08T00:00:00 * Date/Time End: 2000-12-24T00:00:00 * Elevation: 28.0 m * Location: Dronning Maud Land, Antarctica * Campaign: Neumayer_based * Basis: NEUMAYER III * Method/Device: Stake (STAKE)
NM02C89_01 (FB0189) * Latitude: -70.658610 * Longitude: -8.252500 * Date/Time: 1989-12-27T00:00:00 * Elevation: 28.0 m * Recovery: 9.98 m * Location: Dronning Maud Land, Antarctica * Campaign: Neumayer_based * Basis: NEUMAYER III * Method/Device: Firn auger (FIRN)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
8 datasets

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Datasets listed in this publication series

  1. Schlosser, E; Oerter, H; Graf, W (2002): Deuterium, δ¹⁸O, and tritium of ice core NM01C82_04. https://doi.org/10.1594/PANGAEA.690381
  2. Schlosser, E; Oerter, H; Graf, W (2002): Annual mean values of δ¹⁸O, deuterium, and tritium of ice core NM01C82_04. https://doi.org/10.1594/PANGAEA.690380
  3. Schlosser, E; Oerter, H (2002): Accumulation of snow from stake array at Neumayer Station, Antarctica. https://doi.org/10.1594/PANGAEA.690394
  4. Schlosser, E; Oerter, H (2002): Annual mean values of δ¹⁸O of firn core NM02C89_01. https://doi.org/10.1594/PANGAEA.690383
  5. Schlosser, E; Oerter, H (2002): Density and δ¹⁸O of firn core NM02C89_01. https://doi.org/10.1594/PANGAEA.690382
  6. Schlosser, E; Oerter, H (2002): Accumulation of snow from stake array south at Neumayer Station, Antarctica. https://doi.org/10.1594/PANGAEA.690395
  7. Schlosser, E; Oerter, H (2002): d180 of ice core NM03C98_01. https://doi.org/10.1594/PANGAEA.690396
  8. Schlosser, E; Oerter, H (2002): Annual mean values of d180 and accumulation rate of ice core NM03C98_01. https://doi.org/10.1594/PANGAEA.690397