Sea Ice Simulations Performed with Forcing Fields Specified from a General Circulation Model as a Step Toward Modeling the Climate System in Total.
As a first step in the development of a fully coupled atmospheric ice model including ice dynamics, an Interannual simulation of the Arctic ice cover with GCM simulated surface fluxes and winds is compared to a Control equilibrium simulation using observed atmospheric forcing. For the simulated forc...
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ftdtic:ADA182889 2023-05-15T14:54:23+02:00 Sea Ice Simulations Performed with Forcing Fields Specified from a General Circulation Model as a Step Toward Modeling the Climate System in Total. Loewe,Peter MAX-PLANCK-INST FUER METEOROLOGIE HAMBURG (GERMANY F R) 1987-06-26 text/html http://www.dtic.mil/docs/citations/ADA182889 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA182889 en eng http://www.dtic.mil/docs/citations/ADA182889 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Snow Ice and Permafrost Meteorology *CLIMATE *SEA ICE MEAN THICKNESS ARCTIC OCEAN TEMPERATURE CONTROL EQUILIBRIUM(GENERAL) COMPUTERIZED SIMULATION DAILY OCCURRENCE VARIATIONS ARCTIC REGIONS COVERINGS ICE CYCLES ATMOSPHERE MODELS COUPLING(INTERACTION) DRIFT DIURNAL VARIATIONS AMPLITUDE AREA COVERAGE ATMOSPHERIC TEMPERATURE AIR WATER INTERACTIONS SPATIAL DISTRIBUTION MASS RADIATION WIND SIMULATION SEASONAL VARIATIONS CLOUD COVER SURFACES SUMMER CIRCULATION MATHEMATICAL MODELS DYNAMICS VARIABLES LOW RESOLUTION BUDGETS OCEAN SURFACE SURFACE TEMPERATURE THERMODYNAMICS WINTER *Ice Cover *Air Ice Interactions GCM(General Circulation Model) Atmospheric Circulation Climat modeling Forcing Functions ASH57 PE61102A Text 1987 ftdtic 2016-02-19T09:53:33Z As a first step in the development of a fully coupled atmospheric ice model including ice dynamics, an Interannual simulation of the Arctic ice cover with GCM simulated surface fluxes and winds is compared to a Control equilibrium simulation using observed atmospheric forcing. For the simulated forcing results form a coarse resolution GCM with specified sea surface temperatures and ice extents, but simulated cloud cover, are used. For the observed data, climatological temperatures and winds (with daily fluctuations added) are employed. Results from a thermodynamic sea ice model subjected to the simulated forcing are also reported for comparison. Main fields as ice thickness, compactness, and drift was well as radiative and wind forcing are analyzed, both in terms of the seasonal cycle and in terms of interannual variability. An analysis of regional mass budget and longitudinal variability of key variables is presented in addition to results covering the full spatial domain. Amplitude and phase of simulated annual cycles of total ice mass and extent are in good agreement with those of the Control cycles; the annual mean thickness being about 2.5m and ice extent in summer being about 50% of the extent in winter. The simulated spatial distribution of ice is however considerably distorted. Large portions of the Arctic Ocean become ice free each summer while marginal seas stay ice covered. This is caused by a wind forcing that is generally simulated too stationary and too strong on account of the GCM's low resolution. Text Arctic Arctic Ocean Ice permafrost Sea ice Defense Technical Information Center: DTIC Technical Reports database Arctic Arctic Ocean |
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Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
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ftdtic |
language |
English |
topic |
Snow Ice and Permafrost Meteorology *CLIMATE *SEA ICE MEAN THICKNESS ARCTIC OCEAN TEMPERATURE CONTROL EQUILIBRIUM(GENERAL) COMPUTERIZED SIMULATION DAILY OCCURRENCE VARIATIONS ARCTIC REGIONS COVERINGS ICE CYCLES ATMOSPHERE MODELS COUPLING(INTERACTION) DRIFT DIURNAL VARIATIONS AMPLITUDE AREA COVERAGE ATMOSPHERIC TEMPERATURE AIR WATER INTERACTIONS SPATIAL DISTRIBUTION MASS RADIATION WIND SIMULATION SEASONAL VARIATIONS CLOUD COVER SURFACES SUMMER CIRCULATION MATHEMATICAL MODELS DYNAMICS VARIABLES LOW RESOLUTION BUDGETS OCEAN SURFACE SURFACE TEMPERATURE THERMODYNAMICS WINTER *Ice Cover *Air Ice Interactions GCM(General Circulation Model) Atmospheric Circulation Climat modeling Forcing Functions ASH57 PE61102A |
spellingShingle |
Snow Ice and Permafrost Meteorology *CLIMATE *SEA ICE MEAN THICKNESS ARCTIC OCEAN TEMPERATURE CONTROL EQUILIBRIUM(GENERAL) COMPUTERIZED SIMULATION DAILY OCCURRENCE VARIATIONS ARCTIC REGIONS COVERINGS ICE CYCLES ATMOSPHERE MODELS COUPLING(INTERACTION) DRIFT DIURNAL VARIATIONS AMPLITUDE AREA COVERAGE ATMOSPHERIC TEMPERATURE AIR WATER INTERACTIONS SPATIAL DISTRIBUTION MASS RADIATION WIND SIMULATION SEASONAL VARIATIONS CLOUD COVER SURFACES SUMMER CIRCULATION MATHEMATICAL MODELS DYNAMICS VARIABLES LOW RESOLUTION BUDGETS OCEAN SURFACE SURFACE TEMPERATURE THERMODYNAMICS WINTER *Ice Cover *Air Ice Interactions GCM(General Circulation Model) Atmospheric Circulation Climat modeling Forcing Functions ASH57 PE61102A Loewe,Peter Sea Ice Simulations Performed with Forcing Fields Specified from a General Circulation Model as a Step Toward Modeling the Climate System in Total. |
topic_facet |
Snow Ice and Permafrost Meteorology *CLIMATE *SEA ICE MEAN THICKNESS ARCTIC OCEAN TEMPERATURE CONTROL EQUILIBRIUM(GENERAL) COMPUTERIZED SIMULATION DAILY OCCURRENCE VARIATIONS ARCTIC REGIONS COVERINGS ICE CYCLES ATMOSPHERE MODELS COUPLING(INTERACTION) DRIFT DIURNAL VARIATIONS AMPLITUDE AREA COVERAGE ATMOSPHERIC TEMPERATURE AIR WATER INTERACTIONS SPATIAL DISTRIBUTION MASS RADIATION WIND SIMULATION SEASONAL VARIATIONS CLOUD COVER SURFACES SUMMER CIRCULATION MATHEMATICAL MODELS DYNAMICS VARIABLES LOW RESOLUTION BUDGETS OCEAN SURFACE SURFACE TEMPERATURE THERMODYNAMICS WINTER *Ice Cover *Air Ice Interactions GCM(General Circulation Model) Atmospheric Circulation Climat modeling Forcing Functions ASH57 PE61102A |
description |
As a first step in the development of a fully coupled atmospheric ice model including ice dynamics, an Interannual simulation of the Arctic ice cover with GCM simulated surface fluxes and winds is compared to a Control equilibrium simulation using observed atmospheric forcing. For the simulated forcing results form a coarse resolution GCM with specified sea surface temperatures and ice extents, but simulated cloud cover, are used. For the observed data, climatological temperatures and winds (with daily fluctuations added) are employed. Results from a thermodynamic sea ice model subjected to the simulated forcing are also reported for comparison. Main fields as ice thickness, compactness, and drift was well as radiative and wind forcing are analyzed, both in terms of the seasonal cycle and in terms of interannual variability. An analysis of regional mass budget and longitudinal variability of key variables is presented in addition to results covering the full spatial domain. Amplitude and phase of simulated annual cycles of total ice mass and extent are in good agreement with those of the Control cycles; the annual mean thickness being about 2.5m and ice extent in summer being about 50% of the extent in winter. The simulated spatial distribution of ice is however considerably distorted. Large portions of the Arctic Ocean become ice free each summer while marginal seas stay ice covered. This is caused by a wind forcing that is generally simulated too stationary and too strong on account of the GCM's low resolution. |
author2 |
MAX-PLANCK-INST FUER METEOROLOGIE HAMBURG (GERMANY F R) |
format |
Text |
author |
Loewe,Peter |
author_facet |
Loewe,Peter |
author_sort |
Loewe,Peter |
title |
Sea Ice Simulations Performed with Forcing Fields Specified from a General Circulation Model as a Step Toward Modeling the Climate System in Total. |
title_short |
Sea Ice Simulations Performed with Forcing Fields Specified from a General Circulation Model as a Step Toward Modeling the Climate System in Total. |
title_full |
Sea Ice Simulations Performed with Forcing Fields Specified from a General Circulation Model as a Step Toward Modeling the Climate System in Total. |
title_fullStr |
Sea Ice Simulations Performed with Forcing Fields Specified from a General Circulation Model as a Step Toward Modeling the Climate System in Total. |
title_full_unstemmed |
Sea Ice Simulations Performed with Forcing Fields Specified from a General Circulation Model as a Step Toward Modeling the Climate System in Total. |
title_sort |
sea ice simulations performed with forcing fields specified from a general circulation model as a step toward modeling the climate system in total. |
publishDate |
1987 |
url |
http://www.dtic.mil/docs/citations/ADA182889 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA182889 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Ice permafrost Sea ice |
genre_facet |
Arctic Arctic Ocean Ice permafrost Sea ice |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA182889 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766326103731863552 |