Citation:

epic.25953.d001

Name: Density, δ¹⁸O and accumulation rates from snow pits on the Filchner-Ronne Ice Shelf
Published: 1988
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Accumulation rates in the eastern part of Ronne Ice Shelf were determined by isotopic stratigraphy (18O). The samples were taken from snow-pits dug during the Filchner I and II operations in 1984 and 1986. In general, the accumulation rate decreases towards the south; the greatest decrease, from 21.3 to 13.3 g/cm**2/a, was observed between Filchner Station and measuring point 341, sited 270 km up-stream of the ice edge. The d18O values of the near-surface layers vary between -25 and -29 per mil. The 18O content in the more southerly part is progressively depleted in the direction of Möllereisstrom, paralleling a decrease in the accumulation rate. Near the ice edge the 18O content decreases to the west. A 100 m ice core drilled in 1984 at point 340, 22 km from the ice edge, probably goes back to A.D. 1460; it has been dated by isotopic stratigraphy.

The accumulation rate up-stream of the drilling site was deduced from the sequence of annual layers, using a simple ice-flow model. The accumulation shows strong variations over the last 200 years, which may be caused in part by local variations in the accumulation on Ronne Ice shelf.

Project(s):

Glaciology @ AWI (AWI_Glac)

Coverage:

Median Latitude: -78.111192 * Median Longitude: -54.839332 * South-bound Latitude: -78.946110 * West-bound Longitude: -58.776670 * North-bound Latitude: -76.993330 * East-bound Longitude: -50.501390

Date/Time Start: 1980-02-01T00:00:00 * Date/Time End: 1990-02-03T00:00:00

Event(s):

FRI01S84_141 (SS141_84 D141) * Latitude: -77.578610 * Longitude: -50.579440 * Date/Time: 1984-01-24T00:00:00 * Elevation: 58.0 m * Recovery: 2.8 m * Location: Filchner Ronne Ice Shelf * Campaign: (Filchner-Ronne-Ice-Shelf-Project) * Basis: Sampling/drilling ice * Method/Device: Snow pit (SNOWPIT) * Comment: sampling during ANT-II/4

FRI03S86_345 (SS345_86 D345) * Latitude: -78.871670 * Longitude: -53.403330 * Date/Time: 1986-01-28T00:00:00 * Recovery: 2.2 m * Location: Filchner Ronne Ice Shelf * Campaign: (Filchner-Ronne-Ice-Shelf-Project) * Basis: Sampling/drilling ice * Method/Device: Snow pit (SNOWPIT) * Comment: sampling during ANT-IV/3

FRI04S84_140 (SS140_84 D140) * Latitude: -77.129170 * Longitude: -50.501390 * Date/Time: 1984-01-22T00:00:00 * Elevation: 43.0 m * Recovery: 3 m * Location: Filchner Ronne Ice Shelf * Campaign: (Filchner-Ronne-Ice-Shelf-Project) * Basis: Sampling/drilling ice * Method/Device: Snow pit (SNOWPIT) * Comment: sampling during ANT-II/4

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

34 datasets

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Datasets listed in this publication series

Graf, W; Moser, H; Oerter, H et al. (1988): Annual means of density, δ¹⁸O, and accumulation rates of snow pit FRI01S84_141. https://doi.org/10.1594/PANGAEA.548926
Graf, W; Moser, H; Oerter, H et al. (1988): Density and δ¹⁸O of snow pit FRI01S84_141. https://doi.org/10.1594/PANGAEA.548909
Graf, W; Moser, H; Oerter, H et al. (1988): Annual means of density, δ¹⁸O, and accumulation rates of snow pit FRI03S86_345. https://doi.org/10.1594/PANGAEA.548927
Graf, W; Moser, H; Oerter, H et al. (1988): Density and δ¹⁸O of snow pit FRI03S86_345. https://doi.org/10.1594/PANGAEA.548910
Graf, W; Moser, H; Oerter, H et al. (1988): Annual means of density, δ¹⁸O, and accumulation rates of snow pit FRI04S84_140. https://doi.org/10.1594/PANGAEA.548928
Graf, W; Moser, H; Oerter, H et al. (1988): Density and δ¹⁸O of snow pit FRI04S84_140. https://doi.org/10.1594/PANGAEA.548911
Graf, W; Moser, H; Oerter, H et al. (1988): Annual means of density, δ¹⁸O, and accumulation rates of snow pit FRI05S84_240. https://doi.org/10.1594/PANGAEA.548929
Graf, W; Moser, H; Oerter, H et al. (1988): Density and δ¹⁸O of snow pit FRI05S84_240. https://doi.org/10.1594/PANGAEA.548912
Graf, W; Moser, H; Oerter, H et al. (1988): Annual means of density, δ¹⁸O, and accumulation rates of snow pit FRI05S86_240. https://doi.org/10.1594/PANGAEA.548930
Graf, W; Moser, H; Oerter, H et al. (1988): Density and δ¹⁸O of snow pit FRI05S86_240. https://doi.org/10.1594/PANGAEA.548913
Graf, W; Moser, H; Oerter, H et al. (1988): Annual means of density, δ¹⁸O, and accumulation rates of snow pit FRI06S84_241. https://doi.org/10.1594/PANGAEA.548932
Graf, W; Moser, H; Oerter, H et al. (1988): Density and δ¹⁸O of snow pit FRI06S84_241. https://doi.org/10.1594/PANGAEA.548915
Graf, W; Moser, H; Oerter, H et al. (1988): Annual means of density, δ¹⁸O, and accumulation rates of ice core FRI07C84_340. https://doi.org/10.1594/PANGAEA.549170
Graf, W; Moser, H; Oerter, H et al. (1988): High resolution δ¹⁸O of ice core FRI07C84_340. https://doi.org/10.1594/PANGAEA.549097
Graf, W; Moser, H; Oerter, H et al. (1988): Annual means of density, δ¹⁸O, and accumulation rates of snow pit FRI07S84_340. https://doi.org/10.1594/PANGAEA.548933
Graf, W; Moser, H; Oerter, H et al. (1988): Density and δ¹⁸O of snow pit FRI07S84_340. https://doi.org/10.1594/PANGAEA.548916
Graf, W; Moser, H; Oerter, H et al. (1988): Annual means of density, δ¹⁸O, and accumulation rates of snow pit FRI07S86_340. https://doi.org/10.1594/PANGAEA.548934
Graf, W; Moser, H; Oerter, H et al. (1988): Density and δ¹⁸O of snow pit FRI07S86_340. https://doi.org/10.1594/PANGAEA.548917
Graf, W; Moser, H; Oerter, H et al. (1988): Annual means of density, δ¹⁸O, and accumulation rates of snow pit FRI08S84_341. https://doi.org/10.1594/PANGAEA.548935
Graf, W; Moser, H; Oerter, H et al. (1988): Density and δ¹⁸O of snow pit FRI08S84_341. https://doi.org/10.1594/PANGAEA.548918
Graf, W; Moser, H; Oerter, H et al. (1988): Annual means of density, δ¹⁸O, and accumulation rates of snow pit FRI08S86_341. https://doi.org/10.1594/PANGAEA.548936
Graf, W; Moser, H; Oerter, H et al. (1988): Density and δ¹⁸O of snow pit FRI08S86_341. https://doi.org/10.1594/PANGAEA.548919
Graf, W; Moser, H; Oerter, H et al. (1988): Annual means of density, δ¹⁸O, and accumulation rates of snow pit FRI13S86_335. https://doi.org/10.1594/PANGAEA.548937
Graf, W; Moser, H; Oerter, H et al. (1988): Density and δ¹⁸O of snow pit FRI13S86_335. https://doi.org/10.1594/PANGAEA.548920
Graf, W; Moser, H; Oerter, H et al. (1988): Annual means of density, δ¹⁸O, and accumulation rates of snow pit FRI15S86_131. https://doi.org/10.1594/PANGAEA.548938
Graf, W; Moser, H; Oerter, H et al. (1988): Density and δ¹⁸O of snow pit FRI15S86_131. https://doi.org/10.1594/PANGAEA.548921
Graf, W; Moser, H; Oerter, H et al. (1988): Annual means of density, δ¹⁸O, and accumulation rates of snow pit FRI16S86_230. https://doi.org/10.1594/PANGAEA.548939
Graf, W; Moser, H; Oerter, H et al. (1988): Density and δ¹⁸O of snow pit FRI16S86_230. https://doi.org/10.1594/PANGAEA.548922
Graf, W; Moser, H; Oerter, H et al. (1988): Annual means of density, δ¹⁸O, and accumulation rates of snow pit FRI17S86_231. https://doi.org/10.1594/PANGAEA.548940
Graf, W; Moser, H; Oerter, H et al. (1988): Density and δ¹⁸O of snow pit FRI17S86_231. https://doi.org/10.1594/PANGAEA.548925
Graf, W; Moser, H; Oerter, H et al. (1988): Annual means of density, δ¹⁸O, and accumulation rates of snow pit FRI18S86_330. https://doi.org/10.1594/PANGAEA.548941
Graf, W; Moser, H; Oerter, H et al. (1988): Density and δ¹⁸O of snow pit FRI18S86_330. https://doi.org/10.1594/PANGAEA.548924
Graf, W; Moser, H; Oerter, H et al. (1988): Annual means of density, δ¹⁸O, and accumulation rates of snow pit FRI0686S_241. https://doi.org/10.1594/PANGAEA.548931
Graf, W; Moser, H; Oerter, H et al. (1988): Density and δ¹⁸O of snow pit FRI0686S_241. https://doi.org/10.1594/PANGAEA.548914