Band-pass-filtered ice-sheet surface elevation, thickness, velocity and derived data maps for the northern Greenland Ice Sheet
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| Main Authors: | , , , , , , |
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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2018
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| _version_ | 1867171008617644032 |
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| author | Bons, Paul D Kleiner, Thomas Llorens, Maria-Gema Prior, David J Sachau, Till Weikusat, Ilka Jansen, Daniela |
| author_facet | Bons, Paul D Kleiner, Thomas Llorens, Maria-Gema Prior, David J Sachau, Till Weikusat, Ilka Jansen, Daniela |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | In times of warming in polar regions, the prediction of ice sheet discharge is of utmost importance to society, because of its impact on sea level rise. In simulations the flow rate of ice is usually implemented as proportional to the differential stress to the power of the exponent n=3. This exponent influences the softness of the modeled ice, as higher values would produce faster flow under equal stress. We show that the stress exponent, which best fits the observed state of the Greenland Ice Sheet, equals n=4, Our results, which are not dependent on a possible basal sliding component of flow, indicate that most of the interior northern ice sheet is currently frozen to bedrock, except for the large ice streams and marginal ice. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_890558 |
| institution | PANGAEA |
| language | en |
| publishDate | 2018 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Band-pass-filtered ice-sheet surface elevation, thickness, velocity and derived data maps for the northern Greenland Ice Sheet Bons, Paul D Kleiner, Thomas Llorens, Maria-Gema Prior, David J Sachau, Till Weikusat, Ilka Jansen, Daniela File content; File format; File name; File size; MULT; Multiple investigations; Northern_Greenland_Ice_Sheet; Uniform resource locator/link to file In times of warming in polar regions, the prediction of ice sheet discharge is of utmost importance to society, because of its impact on sea level rise. In simulations the flow rate of ice is usually implemented as proportional to the differential stress to the power of the exponent n=3. This exponent influences the softness of the modeled ice, as higher values would produce faster flow under equal stress. We show that the stress exponent, which best fits the observed state of the Greenland Ice Sheet, equals n=4, Our results, which are not dependent on a possible basal sliding component of flow, indicate that most of the interior northern ice sheet is currently frozen to bedrock, except for the large ice streams and marginal ice. |
| title | Band-pass-filtered ice-sheet surface elevation, thickness, velocity and derived data maps for the northern Greenland Ice Sheet |
| topic | File content; File format; File name; File size; MULT; Multiple investigations; Northern_Greenland_Ice_Sheet; Uniform resource locator/link to file |
| url | https://doi.org/10.1594/PANGAEA.890558 |