Numerical simulation of the Weddell Sea pack ice
In order to determine the degree to which a coupled dynamic thermodynamic model can reproduce the seasonal cycle of the Antarctic Sea ice in the Weddell Sea, a series of two-year simulations of the Weddell Sea ice pack were carried out. The simulations employed Hibler's (1979) model and used a...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19830045131 2023-05-15T13:35:32+02:00 Numerical simulation of the Weddell Sea pack ice Hibler, W. D., III Ackley, S. F. Unclassified, Unlimited, Publicly available Mar 30, 1983 http://ntrs.nasa.gov/search.jsp?R=19830045131 unknown http://ntrs.nasa.gov/search.jsp?R=19830045131 Accession ID: 83A26349 Copyright Other Sources 48 Journal of Geophysical Research; 88; Mar. 30 1983 ftnasantrs 2012-02-15T15:27:29Z In order to determine the degree to which a coupled dynamic thermodynamic model can reproduce the seasonal cycle of the Antarctic Sea ice in the Weddell Sea, a series of two-year simulations of the Weddell Sea ice pack were carried out. The simulations employed Hibler's (1979) model and used a one-day time step on an 18 x 15 grid with a resolution of 222 km. Daily atmospheric data from 1979 were used to drive the simulations. The simulations yielded a seasonal cycle of ice with maximum and minimum extents close to that observed. Except for portions of the western Weddell, the advance of the ice is found to be primarily thermodynamic in nature, while the rapid decay depends critically on the presence of both leads and lateral ice advection. In early summer the ice motion causes a residual tongue of ice to extend eastward from the Antarctic Peninsula in agreement with observations. Mean ice thicknesses are consistent with observations, as are the mean drift rates of about 5 km/day. Other/Unknown Material Antarc* Antarctic Antarctic Peninsula ice pack Sea ice Weddell Sea NASA Technical Reports Server (NTRS) Antarctic The Antarctic Antarctic Peninsula Weddell Sea Weddell |
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NASA Technical Reports Server (NTRS) |
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ftnasantrs |
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48 |
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48 Hibler, W. D., III Ackley, S. F. Numerical simulation of the Weddell Sea pack ice |
topic_facet |
48 |
description |
In order to determine the degree to which a coupled dynamic thermodynamic model can reproduce the seasonal cycle of the Antarctic Sea ice in the Weddell Sea, a series of two-year simulations of the Weddell Sea ice pack were carried out. The simulations employed Hibler's (1979) model and used a one-day time step on an 18 x 15 grid with a resolution of 222 km. Daily atmospheric data from 1979 were used to drive the simulations. The simulations yielded a seasonal cycle of ice with maximum and minimum extents close to that observed. Except for portions of the western Weddell, the advance of the ice is found to be primarily thermodynamic in nature, while the rapid decay depends critically on the presence of both leads and lateral ice advection. In early summer the ice motion causes a residual tongue of ice to extend eastward from the Antarctic Peninsula in agreement with observations. Mean ice thicknesses are consistent with observations, as are the mean drift rates of about 5 km/day. |
format |
Other/Unknown Material |
author |
Hibler, W. D., III Ackley, S. F. |
author_facet |
Hibler, W. D., III Ackley, S. F. |
author_sort |
Hibler, W. D., III |
title |
Numerical simulation of the Weddell Sea pack ice |
title_short |
Numerical simulation of the Weddell Sea pack ice |
title_full |
Numerical simulation of the Weddell Sea pack ice |
title_fullStr |
Numerical simulation of the Weddell Sea pack ice |
title_full_unstemmed |
Numerical simulation of the Weddell Sea pack ice |
title_sort |
numerical simulation of the weddell sea pack ice |
publishDate |
1983 |
url |
http://ntrs.nasa.gov/search.jsp?R=19830045131 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic The Antarctic Antarctic Peninsula Weddell Sea Weddell |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Weddell Sea Weddell |
genre |
Antarc* Antarctic Antarctic Peninsula ice pack Sea ice Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Peninsula ice pack Sea ice Weddell Sea |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19830045131 Accession ID: 83A26349 |
op_rights |
Copyright |
_version_ |
1766066892477300736 |