Regionalnaya model dinamiki lda. Chast 2. Post-eksperimentalnaya obrabotka dannykh (in Russian: Regional ice-dynamic model. Part 2. Post-experimental processing of data)
In the paper we discuss a numerical experiment aiming at reconstruction of the ice-flow dynamics during the last 170 kyr around the drill site at Kohnen station, Dronning Maud Land, Antarctica. We focus at a 600×400 km nested domain of a regional model. The structure of the model and performance of...
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ftawi:oai:epic.awi.de:19699 2023-05-15T13:39:47+02:00 Regionalnaya model dinamiki lda. Chast 2. Post-eksperimentalnaya obrabotka dannykh (in Russian: Regional ice-dynamic model. Part 2. Post-experimental processing of data) Rybak, Oleg Huybrechts, Philippe Pattyn, F. Steinhage, Daniel 2007 application/pdf https://epic.awi.de/id/eprint/19699/ https://epic.awi.de/id/eprint/19699/1/Ryb2007c.pdf https://hdl.handle.net/10013/epic.31598 https://hdl.handle.net/10013/epic.31598.d001 unknown https://epic.awi.de/id/eprint/19699/1/Ryb2007c.pdf https://hdl.handle.net/10013/epic.31598.d001 Rybak, O. , Huybrechts, P. , Pattyn, F. and Steinhage, D. orcid:0000-0003-4737-9751 (2007) Regionalnaya model dinamiki lda. Chast 2. Post-eksperimentalnaya obrabotka dannykh (in Russian: Regional ice-dynamic model. Part 2. Post-experimental processing of data) , Materialy Glatsiologicheskikh issledovanii (Data of glaciological studies), 103 , pp. 3-10 . hdl:10013/epic.31598 EPIC3Materialy Glatsiologicheskikh issledovanii (Data of glaciological studies), 103, pp. 3-10 Article peerRev 2007 ftawi 2021-12-24T15:33:04Z In the paper we discuss a numerical experiment aiming at reconstruction of the ice-flow dynamics during the last 170 kyr around the drill site at Kohnen station, Dronning Maud Land, Antarctica. We focus at a 600×400 km nested domain of a regional model. The structure of the model and performance of the numerical experiment are described in detail in In the current research we employ a temperature record, which was reconstructed directly from the isotopical data derived from the Kohnen ice core, as a climatic forcing. Numerical experiment was carried out in several steps. On each step an innovation of forcing values was carried out. Non-climatic temperature biases were excluded from the forcing to derive pure climatic signal. These biases are explained by the local and by the upstream topographic effects.Post-processing of the experimental data was carried out by means of the Lagrangian backtracing method. Depth-age distribution in the ice core and places of origin of ice particles on the surface of the ice sheet were established. As a result of analysis of ice-particle trajectories, their velocities, and ice deformations we conclude that the flow was stable and that the stratigraphy of the upper 89%-layer was not disturbed. Article in Journal/Newspaper Antarc* Antarctica Dronning Maud Land ice core Ice Sheet Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Dronning Maud Land Kohnen ENVELOPE(0.000,0.000,-75.000,-75.000) Kohnen Station ENVELOPE(0.000,0.000,-75.000,-75.000) |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
In the paper we discuss a numerical experiment aiming at reconstruction of the ice-flow dynamics during the last 170 kyr around the drill site at Kohnen station, Dronning Maud Land, Antarctica. We focus at a 600×400 km nested domain of a regional model. The structure of the model and performance of the numerical experiment are described in detail in In the current research we employ a temperature record, which was reconstructed directly from the isotopical data derived from the Kohnen ice core, as a climatic forcing. Numerical experiment was carried out in several steps. On each step an innovation of forcing values was carried out. Non-climatic temperature biases were excluded from the forcing to derive pure climatic signal. These biases are explained by the local and by the upstream topographic effects.Post-processing of the experimental data was carried out by means of the Lagrangian backtracing method. Depth-age distribution in the ice core and places of origin of ice particles on the surface of the ice sheet were established. As a result of analysis of ice-particle trajectories, their velocities, and ice deformations we conclude that the flow was stable and that the stratigraphy of the upper 89%-layer was not disturbed. |
format |
Article in Journal/Newspaper |
author |
Rybak, Oleg Huybrechts, Philippe Pattyn, F. Steinhage, Daniel |
spellingShingle |
Rybak, Oleg Huybrechts, Philippe Pattyn, F. Steinhage, Daniel Regionalnaya model dinamiki lda. Chast 2. Post-eksperimentalnaya obrabotka dannykh (in Russian: Regional ice-dynamic model. Part 2. Post-experimental processing of data) |
author_facet |
Rybak, Oleg Huybrechts, Philippe Pattyn, F. Steinhage, Daniel |
author_sort |
Rybak, Oleg |
title |
Regionalnaya model dinamiki lda. Chast 2. Post-eksperimentalnaya obrabotka dannykh (in Russian: Regional ice-dynamic model. Part 2. Post-experimental processing of data) |
title_short |
Regionalnaya model dinamiki lda. Chast 2. Post-eksperimentalnaya obrabotka dannykh (in Russian: Regional ice-dynamic model. Part 2. Post-experimental processing of data) |
title_full |
Regionalnaya model dinamiki lda. Chast 2. Post-eksperimentalnaya obrabotka dannykh (in Russian: Regional ice-dynamic model. Part 2. Post-experimental processing of data) |
title_fullStr |
Regionalnaya model dinamiki lda. Chast 2. Post-eksperimentalnaya obrabotka dannykh (in Russian: Regional ice-dynamic model. Part 2. Post-experimental processing of data) |
title_full_unstemmed |
Regionalnaya model dinamiki lda. Chast 2. Post-eksperimentalnaya obrabotka dannykh (in Russian: Regional ice-dynamic model. Part 2. Post-experimental processing of data) |
title_sort |
regionalnaya model dinamiki lda. chast 2. post-eksperimentalnaya obrabotka dannykh (in russian: regional ice-dynamic model. part 2. post-experimental processing of data) |
publishDate |
2007 |
url |
https://epic.awi.de/id/eprint/19699/ https://epic.awi.de/id/eprint/19699/1/Ryb2007c.pdf https://hdl.handle.net/10013/epic.31598 https://hdl.handle.net/10013/epic.31598.d001 |
long_lat |
ENVELOPE(0.000,0.000,-75.000,-75.000) ENVELOPE(0.000,0.000,-75.000,-75.000) |
geographic |
Dronning Maud Land Kohnen Kohnen Station |
geographic_facet |
Dronning Maud Land Kohnen Kohnen Station |
genre |
Antarc* Antarctica Dronning Maud Land ice core Ice Sheet |
genre_facet |
Antarc* Antarctica Dronning Maud Land ice core Ice Sheet |
op_source |
EPIC3Materialy Glatsiologicheskikh issledovanii (Data of glaciological studies), 103, pp. 3-10 |
op_relation |
https://epic.awi.de/id/eprint/19699/1/Ryb2007c.pdf https://hdl.handle.net/10013/epic.31598.d001 Rybak, O. , Huybrechts, P. , Pattyn, F. and Steinhage, D. orcid:0000-0003-4737-9751 (2007) Regionalnaya model dinamiki lda. Chast 2. Post-eksperimentalnaya obrabotka dannykh (in Russian: Regional ice-dynamic model. Part 2. Post-experimental processing of data) , Materialy Glatsiologicheskikh issledovanii (Data of glaciological studies), 103 , pp. 3-10 . hdl:10013/epic.31598 |
_version_ |
1766124694265659392 |