The Role and Variability of Ocean Heat Content in the Arctic Ocean: 1948-2009
The observed rate of sea ice cover decline in the Arctic for the past decades is faster than those projected by the recent Coupled Model Intercomparison Project (CMIP5). I hypothesize that a critical source of energy in the Arctic Ocean, heat content accumulating below the surface mixed layer and ab...
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ftdtic:ADA607615 2023-05-15T14:32:32+02:00 The Role and Variability of Ocean Heat Content in the Arctic Ocean: 1948-2009 DiMaggio, Dominic F NAVAL POSTGRADUATE SCHOOL MONTEREY CA 2014-06 text/html http://www.dtic.mil/docs/citations/ADA607615 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA607615 en eng http://www.dtic.mil/docs/citations/ADA607615 Approved for public release; distribution is unlimited. DTIC Physical and Dynamic Oceanography Thermodynamics *ARCTIC OCEAN *OCEANOGRAPHY *TEMPERATURE ACCUMULATION ARCTIC REGIONS CLIMATE CONSISTENCY COUPLING(INTERACTION) FEEDBACK HEAT HIGH RESOLUTION ICE FORMATION LAYERS MIXING MODELS OCEANS PREDICTIONS RATES REDUCTION SOURCES THESES ARCTIC OCEANOGRAPHY OCEAN HEAT CONTENT CLIMATE CHANGE AND PREDICTION REGIONAL ARCTIC SYSTEM MODEL ICE-TETHERED PROFILER Text 2014 ftdtic 2016-02-24T15:59:27Z The observed rate of sea ice cover decline in the Arctic for the past decades is faster than those projected by the recent Coupled Model Intercomparison Project (CMIP5). I hypothesize that a critical source of energy in the Arctic Ocean, heat content accumulating below the surface mixed layer and above the halocline, has been increasing in magnitude and area, and may be contributing to the recent decline in the ice cover. Consistent with observations, model results from a subset of the Regional Arctic System Model (RASM) indicate that heat has been stored between the mixed layer and the halocline, and that it has increased during the period of 1948 to 2009. Ongoing analyses show that the total amount and rate of increase of heat content has been largest in the western Arctic, and there is a causal relationship between the accumulation of heat content and the reduction of sea ice volume. Future studies involving new observations of physical processes and feedbacks in the western Arctic Ocean, and higher resolution and coupled climate models with improved representation of such processes and feedbacks are needed to advance understanding, realistic modeling, and improved prediction of the Arctic System and its variability and change. Text Arctic Arctic Ocean Climate change Sea ice Defense Technical Information Center: DTIC Technical Reports database Arctic Arctic Ocean |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
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language |
English |
topic |
Physical and Dynamic Oceanography Thermodynamics *ARCTIC OCEAN *OCEANOGRAPHY *TEMPERATURE ACCUMULATION ARCTIC REGIONS CLIMATE CONSISTENCY COUPLING(INTERACTION) FEEDBACK HEAT HIGH RESOLUTION ICE FORMATION LAYERS MIXING MODELS OCEANS PREDICTIONS RATES REDUCTION SOURCES THESES ARCTIC OCEANOGRAPHY OCEAN HEAT CONTENT CLIMATE CHANGE AND PREDICTION REGIONAL ARCTIC SYSTEM MODEL ICE-TETHERED PROFILER |
spellingShingle |
Physical and Dynamic Oceanography Thermodynamics *ARCTIC OCEAN *OCEANOGRAPHY *TEMPERATURE ACCUMULATION ARCTIC REGIONS CLIMATE CONSISTENCY COUPLING(INTERACTION) FEEDBACK HEAT HIGH RESOLUTION ICE FORMATION LAYERS MIXING MODELS OCEANS PREDICTIONS RATES REDUCTION SOURCES THESES ARCTIC OCEANOGRAPHY OCEAN HEAT CONTENT CLIMATE CHANGE AND PREDICTION REGIONAL ARCTIC SYSTEM MODEL ICE-TETHERED PROFILER DiMaggio, Dominic F The Role and Variability of Ocean Heat Content in the Arctic Ocean: 1948-2009 |
topic_facet |
Physical and Dynamic Oceanography Thermodynamics *ARCTIC OCEAN *OCEANOGRAPHY *TEMPERATURE ACCUMULATION ARCTIC REGIONS CLIMATE CONSISTENCY COUPLING(INTERACTION) FEEDBACK HEAT HIGH RESOLUTION ICE FORMATION LAYERS MIXING MODELS OCEANS PREDICTIONS RATES REDUCTION SOURCES THESES ARCTIC OCEANOGRAPHY OCEAN HEAT CONTENT CLIMATE CHANGE AND PREDICTION REGIONAL ARCTIC SYSTEM MODEL ICE-TETHERED PROFILER |
description |
The observed rate of sea ice cover decline in the Arctic for the past decades is faster than those projected by the recent Coupled Model Intercomparison Project (CMIP5). I hypothesize that a critical source of energy in the Arctic Ocean, heat content accumulating below the surface mixed layer and above the halocline, has been increasing in magnitude and area, and may be contributing to the recent decline in the ice cover. Consistent with observations, model results from a subset of the Regional Arctic System Model (RASM) indicate that heat has been stored between the mixed layer and the halocline, and that it has increased during the period of 1948 to 2009. Ongoing analyses show that the total amount and rate of increase of heat content has been largest in the western Arctic, and there is a causal relationship between the accumulation of heat content and the reduction of sea ice volume. Future studies involving new observations of physical processes and feedbacks in the western Arctic Ocean, and higher resolution and coupled climate models with improved representation of such processes and feedbacks are needed to advance understanding, realistic modeling, and improved prediction of the Arctic System and its variability and change. |
author2 |
NAVAL POSTGRADUATE SCHOOL MONTEREY CA |
format |
Text |
author |
DiMaggio, Dominic F |
author_facet |
DiMaggio, Dominic F |
author_sort |
DiMaggio, Dominic F |
title |
The Role and Variability of Ocean Heat Content in the Arctic Ocean: 1948-2009 |
title_short |
The Role and Variability of Ocean Heat Content in the Arctic Ocean: 1948-2009 |
title_full |
The Role and Variability of Ocean Heat Content in the Arctic Ocean: 1948-2009 |
title_fullStr |
The Role and Variability of Ocean Heat Content in the Arctic Ocean: 1948-2009 |
title_full_unstemmed |
The Role and Variability of Ocean Heat Content in the Arctic Ocean: 1948-2009 |
title_sort |
role and variability of ocean heat content in the arctic ocean: 1948-2009 |
publishDate |
2014 |
url |
http://www.dtic.mil/docs/citations/ADA607615 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA607615 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Climate change Sea ice |
genre_facet |
Arctic Arctic Ocean Climate change Sea ice |
op_source |
DTIC |
op_relation |
http://www.dtic.mil/docs/citations/ADA607615 |
op_rights |
Approved for public release; distribution is unlimited. |
_version_ |
1766305926215630848 |