Numerical simulation of North Atlantic Sea ice variability, 1951 - 1980
A two-level dynamic-thermodynamic sea ice model is used to simulate the growth, drift and decay of sea ice in the Northern Hemisphere during a 30-year period, 1951 to 1980. The model is run with a daily timestep on a 222 km grid and is forced by interanually varying fields of geostrophic wind and te...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19850017729 2023-05-15T16:03:46+02:00 Numerical simulation of North Atlantic Sea ice variability, 1951 - 1980 Walsh, J. E. Unclassified, Unlimited, Publicly available Dec 1, 1984 http://ntrs.nasa.gov/search.jsp?R=19850017729 unknown http://ntrs.nasa.gov/search.jsp?R=19850017729 Accession ID: 85N26040 No Copyright CASI 48 NASA. Goddard Inst. for Space Studies North Atlantic Deep Water Formation; p 36-38 1984 ftnasantrs 2012-02-15T16:07:17Z A two-level dynamic-thermodynamic sea ice model is used to simulate the growth, drift and decay of sea ice in the Northern Hemisphere during a 30-year period, 1951 to 1980. The model is run with a daily timestep on a 222 km grid and is forced by interanually varying fields of geostrophic wind and temperature-derived thermodynamic fluxes. The objective is a quantitative description of large-scale sea ice variability in terms of the dynamic and thermodynamic processes responsible for the fluctuations, especially in the North Atlantic where sea ice represents a substantial input of fresh water. The fields of ice velocity and thickness contain strong seasonal as well as interannual variability. The mean drift pattern results in thicknesses of 4 to 5 m offshore of northern Canada and Greenland, while winter thicknesses of approximately 2 m are typical of Alaskan. Eurasian and East Greenland coastal waters. The 30-year mean fields are characterized by ecessive ice in the North Atlantic during winter and by a summer retreat that is more rapid than observed. Other/Unknown Material East Greenland Greenland North Atlantic Sea ice NASA Technical Reports Server (NTRS) Canada Greenland |
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NASA Technical Reports Server (NTRS) |
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ftnasantrs |
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48 |
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48 Walsh, J. E. Numerical simulation of North Atlantic Sea ice variability, 1951 - 1980 |
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48 |
description |
A two-level dynamic-thermodynamic sea ice model is used to simulate the growth, drift and decay of sea ice in the Northern Hemisphere during a 30-year period, 1951 to 1980. The model is run with a daily timestep on a 222 km grid and is forced by interanually varying fields of geostrophic wind and temperature-derived thermodynamic fluxes. The objective is a quantitative description of large-scale sea ice variability in terms of the dynamic and thermodynamic processes responsible for the fluctuations, especially in the North Atlantic where sea ice represents a substantial input of fresh water. The fields of ice velocity and thickness contain strong seasonal as well as interannual variability. The mean drift pattern results in thicknesses of 4 to 5 m offshore of northern Canada and Greenland, while winter thicknesses of approximately 2 m are typical of Alaskan. Eurasian and East Greenland coastal waters. The 30-year mean fields are characterized by ecessive ice in the North Atlantic during winter and by a summer retreat that is more rapid than observed. |
format |
Other/Unknown Material |
author |
Walsh, J. E. |
author_facet |
Walsh, J. E. |
author_sort |
Walsh, J. E. |
title |
Numerical simulation of North Atlantic Sea ice variability, 1951 - 1980 |
title_short |
Numerical simulation of North Atlantic Sea ice variability, 1951 - 1980 |
title_full |
Numerical simulation of North Atlantic Sea ice variability, 1951 - 1980 |
title_fullStr |
Numerical simulation of North Atlantic Sea ice variability, 1951 - 1980 |
title_full_unstemmed |
Numerical simulation of North Atlantic Sea ice variability, 1951 - 1980 |
title_sort |
numerical simulation of north atlantic sea ice variability, 1951 - 1980 |
publishDate |
1984 |
url |
http://ntrs.nasa.gov/search.jsp?R=19850017729 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Canada Greenland |
geographic_facet |
Canada Greenland |
genre |
East Greenland Greenland North Atlantic Sea ice |
genre_facet |
East Greenland Greenland North Atlantic Sea ice |
op_source |
CASI |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19850017729 Accession ID: 85N26040 |
op_rights |
No Copyright |
_version_ |
1766399461621235712 |