Force, mass, and energy budgets of the Crary Ice Rise complex, Antarctica
The stress, mass, and energy-dissipation budgets of Crary Ice Rise are analyzed using field data collected during the 1983-1985 austral summers and in previous field programs. In addition, the net back pressure and ice-discharge rate along the grounding lines of ice streams are calculated to assess...
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| Format: | Other/Unknown Material |
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1987
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| Online Access: | http://ntrs.nasa.gov/search.jsp?R=19900046266 |
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ftnasantrs:oai:casi.ntrs.nasa.gov:19900046266 |
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ftnasantrs:oai:casi.ntrs.nasa.gov:19900046266 2023-05-15T14:04:34+02:00 Force, mass, and energy budgets of the Crary Ice Rise complex, Antarctica Macayeal, D. R. Bindschadler, R. A. Stephenson, S. Shabtaie, S. Bentley, C. R. Unclassified, Unlimited, Publicly available JAN 1, 1987 http://ntrs.nasa.gov/search.jsp?R=19900046266 unknown http://ntrs.nasa.gov/search.jsp?R=19900046266 Accession ID: 90A33321 Copyright Other Sources 46 Journal of Glaciology; 33; 114,; 218-230 1987 ftnasantrs 2012-02-15T18:29:48Z The stress, mass, and energy-dissipation budgets of Crary Ice Rise are analyzed using field data collected during the 1983-1985 austral summers and in previous field programs. In addition, the net back pressure and ice-discharge rate along the grounding lines of ice streams are calculated to assess the effect of the ice rise on the surrounding flow. Comparison of the ice-rise budgets with the analysis of grounding-line data confirms the influence of the ice rise on ice-sheet stability, and suggests that Crary Ice Rise may have formed recently in response to an acceleration of one of the ice streams. It is concluded that feedback between ice-stream acceleration and ice-rise formation may control the future evolution of the above ice stream and promote long-term grounding-line stability in the face of strong natural fluctuations. Other/Unknown Material Antarc* Antarctica Ice Sheet NASA Technical Reports Server (NTRS) Austral Crary Ice Rise ENVELOPE(-172.500,-172.500,-82.933,-82.933) |
| institution |
Open Polar |
| collection |
NASA Technical Reports Server (NTRS) |
| op_collection_id |
ftnasantrs |
| language |
unknown |
| topic |
46 |
| spellingShingle |
46 Macayeal, D. R. Bindschadler, R. A. Stephenson, S. Shabtaie, S. Bentley, C. R. Force, mass, and energy budgets of the Crary Ice Rise complex, Antarctica |
| topic_facet |
46 |
| description |
The stress, mass, and energy-dissipation budgets of Crary Ice Rise are analyzed using field data collected during the 1983-1985 austral summers and in previous field programs. In addition, the net back pressure and ice-discharge rate along the grounding lines of ice streams are calculated to assess the effect of the ice rise on the surrounding flow. Comparison of the ice-rise budgets with the analysis of grounding-line data confirms the influence of the ice rise on ice-sheet stability, and suggests that Crary Ice Rise may have formed recently in response to an acceleration of one of the ice streams. It is concluded that feedback between ice-stream acceleration and ice-rise formation may control the future evolution of the above ice stream and promote long-term grounding-line stability in the face of strong natural fluctuations. |
| format |
Other/Unknown Material |
| author |
Macayeal, D. R. Bindschadler, R. A. Stephenson, S. Shabtaie, S. Bentley, C. R. |
| author_facet |
Macayeal, D. R. Bindschadler, R. A. Stephenson, S. Shabtaie, S. Bentley, C. R. |
| author_sort |
Macayeal, D. R. |
| title |
Force, mass, and energy budgets of the Crary Ice Rise complex, Antarctica |
| title_short |
Force, mass, and energy budgets of the Crary Ice Rise complex, Antarctica |
| title_full |
Force, mass, and energy budgets of the Crary Ice Rise complex, Antarctica |
| title_fullStr |
Force, mass, and energy budgets of the Crary Ice Rise complex, Antarctica |
| title_full_unstemmed |
Force, mass, and energy budgets of the Crary Ice Rise complex, Antarctica |
| title_sort |
force, mass, and energy budgets of the crary ice rise complex, antarctica |
| publishDate |
1987 |
| url |
http://ntrs.nasa.gov/search.jsp?R=19900046266 |
| op_coverage |
Unclassified, Unlimited, Publicly available |
| long_lat |
ENVELOPE(-172.500,-172.500,-82.933,-82.933) |
| geographic |
Austral Crary Ice Rise |
| geographic_facet |
Austral Crary Ice Rise |
| genre |
Antarc* Antarctica Ice Sheet |
| genre_facet |
Antarc* Antarctica Ice Sheet |
| op_source |
Other Sources |
| op_relation |
http://ntrs.nasa.gov/search.jsp?R=19900046266 Accession ID: 90A33321 |
| op_rights |
Copyright |
| _version_ |
1766275748453154816 |