Simulation of the Antarctic ice sheet with a three-dimensional polythermal ice-sheet model, in support of the EPICA project. II. Nested high-resolution treatment of Dronning Maud Land, Antarctica
The modern dynamic and thermodynamic state of the entire Antarctic ice sheet is computed for a 242 200 year paleoclimatic simulation with the three-dimensional polythermal ice-sheet model SICOPOLIS. The simulation is driven by a climate history derived from the Vostok ice core and the SPECMAP sea-le...
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/34636 2023-05-15T13:29:11+02:00 Simulation of the Antarctic ice sheet with a three-dimensional polythermal ice-sheet model, in support of the EPICA project. II. Nested high-resolution treatment of Dronning Maud Land, Antarctica Savvin, Alexey Greve, Ralf Calov, Reinhard Mügge, Bernd Hutter, Kolumban http://hdl.handle.net/2115/34636 https://doi.org/10.3189/172756400781820831 eng eng International Glaciological Society http://www.igsoc.org/ http://hdl.handle.net/2115/34636 Annals of Glaciology, 30: 69-75 http://dx.doi.org/10.3189/172756400781820831 © 2000 International Glaciological Society Antarctic ice sheet Dronning Maud Land EPICA Ice core Simulation 452 article fthokunivhus https://doi.org/10.3189/172756400781820831 2022-11-18T01:01:37Z The modern dynamic and thermodynamic state of the entire Antarctic ice sheet is computed for a 242 200 year paleoclimatic simulation with the three-dimensional polythermal ice-sheet model SICOPOLIS. The simulation is driven by a climate history derived from the Vostok ice core and the SPECMAP sea-level record. In a 872 km x 436 km region in western Dronning Maud Land (DML), where a deep ice core is planned for EPICA, new high-resolution ice-thickness data are used to compute an improved bedrock topography and a locally refined numerical grid is applied which extends earlier work (Calov and others, 1998). The computed fields of basal temperature, age and shear deformation, together with the measured accumulation rates, give valuable information for the selection of a drill site suitable for obtaining a high-resolution climate record for the last glacial cycle. Based on these results, a possible drill site at 73° 59' S, 00° 00' E is discussed, for which the computed depth profiles of temperature, age, velocity and shear deformation are presented. The geographic origin of the ice column at this position extends 320 km upstream and therefore does not leave the DML region. Article in Journal/Newspaper Annals of Glaciology Antarc* Antarctic Antarctica DML Dronning Maud Land EPICA ice core Ice Sheet Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Antarctic The Antarctic Dronning Maud Land Annals of Glaciology 30 69 75 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
Antarctic ice sheet Dronning Maud Land EPICA Ice core Simulation 452 |
spellingShingle |
Antarctic ice sheet Dronning Maud Land EPICA Ice core Simulation 452 Savvin, Alexey Greve, Ralf Calov, Reinhard Mügge, Bernd Hutter, Kolumban Simulation of the Antarctic ice sheet with a three-dimensional polythermal ice-sheet model, in support of the EPICA project. II. Nested high-resolution treatment of Dronning Maud Land, Antarctica |
topic_facet |
Antarctic ice sheet Dronning Maud Land EPICA Ice core Simulation 452 |
description |
The modern dynamic and thermodynamic state of the entire Antarctic ice sheet is computed for a 242 200 year paleoclimatic simulation with the three-dimensional polythermal ice-sheet model SICOPOLIS. The simulation is driven by a climate history derived from the Vostok ice core and the SPECMAP sea-level record. In a 872 km x 436 km region in western Dronning Maud Land (DML), where a deep ice core is planned for EPICA, new high-resolution ice-thickness data are used to compute an improved bedrock topography and a locally refined numerical grid is applied which extends earlier work (Calov and others, 1998). The computed fields of basal temperature, age and shear deformation, together with the measured accumulation rates, give valuable information for the selection of a drill site suitable for obtaining a high-resolution climate record for the last glacial cycle. Based on these results, a possible drill site at 73° 59' S, 00° 00' E is discussed, for which the computed depth profiles of temperature, age, velocity and shear deformation are presented. The geographic origin of the ice column at this position extends 320 km upstream and therefore does not leave the DML region. |
format |
Article in Journal/Newspaper |
author |
Savvin, Alexey Greve, Ralf Calov, Reinhard Mügge, Bernd Hutter, Kolumban |
author_facet |
Savvin, Alexey Greve, Ralf Calov, Reinhard Mügge, Bernd Hutter, Kolumban |
author_sort |
Savvin, Alexey |
title |
Simulation of the Antarctic ice sheet with a three-dimensional polythermal ice-sheet model, in support of the EPICA project. II. Nested high-resolution treatment of Dronning Maud Land, Antarctica |
title_short |
Simulation of the Antarctic ice sheet with a three-dimensional polythermal ice-sheet model, in support of the EPICA project. II. Nested high-resolution treatment of Dronning Maud Land, Antarctica |
title_full |
Simulation of the Antarctic ice sheet with a three-dimensional polythermal ice-sheet model, in support of the EPICA project. II. Nested high-resolution treatment of Dronning Maud Land, Antarctica |
title_fullStr |
Simulation of the Antarctic ice sheet with a three-dimensional polythermal ice-sheet model, in support of the EPICA project. II. Nested high-resolution treatment of Dronning Maud Land, Antarctica |
title_full_unstemmed |
Simulation of the Antarctic ice sheet with a three-dimensional polythermal ice-sheet model, in support of the EPICA project. II. Nested high-resolution treatment of Dronning Maud Land, Antarctica |
title_sort |
simulation of the antarctic ice sheet with a three-dimensional polythermal ice-sheet model, in support of the epica project. ii. nested high-resolution treatment of dronning maud land, antarctica |
publisher |
International Glaciological Society |
url |
http://hdl.handle.net/2115/34636 https://doi.org/10.3189/172756400781820831 |
geographic |
Antarctic The Antarctic Dronning Maud Land |
geographic_facet |
Antarctic The Antarctic Dronning Maud Land |
genre |
Annals of Glaciology Antarc* Antarctic Antarctica DML Dronning Maud Land EPICA ice core Ice Sheet |
genre_facet |
Annals of Glaciology Antarc* Antarctic Antarctica DML Dronning Maud Land EPICA ice core Ice Sheet |
op_relation |
http://www.igsoc.org/ http://hdl.handle.net/2115/34636 Annals of Glaciology, 30: 69-75 http://dx.doi.org/10.3189/172756400781820831 |
op_rights |
© 2000 International Glaciological Society |
op_doi |
https://doi.org/10.3189/172756400781820831 |
container_title |
Annals of Glaciology |
container_volume |
30 |
container_start_page |
69 |
op_container_end_page |
75 |
_version_ |
1765999121558142976 |