Projected changes in Arctic Ocean freshwater budgets
Arctic Ocean freshwater budgets are examined from 10 models participating in the Intergovernmental Panel on Climate Change Fourth Assessment Report. This includes an analysis of sea ice transport and storage, ocean transport and storage, and net surface flux exchange. Simulated budgets for the late...
Published in: | Journal of Geophysical Research: Biogeosciences |
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Language: | English |
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American Geophysical Union
2007
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Online Access: | http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-292 https://doi.org/10.1029/2006JG000354 |
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ftncar:oai:drupal-site.org:articles_6950 2023-10-01T03:52:56+02:00 Projected changes in Arctic Ocean freshwater budgets Holland, Marika (author) Finnis, Joel (author) Barrett, Andrew (author) Serreze, Mark (author) 2007-10-26 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-292 https://doi.org/10.1029/2006JG000354 en eng American Geophysical Union Journal of Geophysical Research-Biogeosciences http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-292 doi:10.1029/2006JG000354 ark:/85065/d7d79bnb Copyright 2007 American Geophysical Union. Arctic change Text article 2007 ftncar https://doi.org/10.1029/2006JG000354 2023-09-04T18:22:01Z Arctic Ocean freshwater budgets are examined from 10 models participating in the Intergovernmental Panel on Climate Change Fourth Assessment Report. This includes an analysis of sea ice transport and storage, ocean transport and storage, and net surface flux exchange. Simulated budgets for the late 20th century are compared to available observations, followed by an analysis of simulated changes from 1950 to 2050. The consistent theme over this period is an acceleration of the Arctic hydrological cycle, which is expressed as an increase in the flux of water passing through the hydrologic elements. Increased freshwater inputs to the ocean from net precipitation, river runoff, and net ice melt result. While generally attended by a larger export of liquid freshwater to lower latitudes, primarily through Fram Strait, liquid freshwater storage in the Arctic Ocean increases. In contrast, the export and storage of freshwater in the form of sea ice decreases. The qualitative agreement between models for which the only common forcing is rising greenhouse gas concentrations implicates this greenhouse gas loading as the cause of the change. Although the models perform quite well in their simulations of net precipitation over the Arctic Ocean and terrestrial drainage, they differ significantly regarding the magnitude of the trends and their representation of contemporary mean ocean and sea ice budget terms. To reduce uncertainty in future projections of the Arctic freshwater cycle, the climate models as a group require considerable improvement in these aspects of their simulations. Article in Journal/Newspaper Arctic Arctic Ocean Climate change Fram Strait Sea ice OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Arctic Arctic Ocean Journal of Geophysical Research: Biogeosciences 112 G4 n/a n/a |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
topic |
Arctic change |
spellingShingle |
Arctic change Projected changes in Arctic Ocean freshwater budgets |
topic_facet |
Arctic change |
description |
Arctic Ocean freshwater budgets are examined from 10 models participating in the Intergovernmental Panel on Climate Change Fourth Assessment Report. This includes an analysis of sea ice transport and storage, ocean transport and storage, and net surface flux exchange. Simulated budgets for the late 20th century are compared to available observations, followed by an analysis of simulated changes from 1950 to 2050. The consistent theme over this period is an acceleration of the Arctic hydrological cycle, which is expressed as an increase in the flux of water passing through the hydrologic elements. Increased freshwater inputs to the ocean from net precipitation, river runoff, and net ice melt result. While generally attended by a larger export of liquid freshwater to lower latitudes, primarily through Fram Strait, liquid freshwater storage in the Arctic Ocean increases. In contrast, the export and storage of freshwater in the form of sea ice decreases. The qualitative agreement between models for which the only common forcing is rising greenhouse gas concentrations implicates this greenhouse gas loading as the cause of the change. Although the models perform quite well in their simulations of net precipitation over the Arctic Ocean and terrestrial drainage, they differ significantly regarding the magnitude of the trends and their representation of contemporary mean ocean and sea ice budget terms. To reduce uncertainty in future projections of the Arctic freshwater cycle, the climate models as a group require considerable improvement in these aspects of their simulations. |
author2 |
Holland, Marika (author) Finnis, Joel (author) Barrett, Andrew (author) Serreze, Mark (author) |
format |
Article in Journal/Newspaper |
title |
Projected changes in Arctic Ocean freshwater budgets |
title_short |
Projected changes in Arctic Ocean freshwater budgets |
title_full |
Projected changes in Arctic Ocean freshwater budgets |
title_fullStr |
Projected changes in Arctic Ocean freshwater budgets |
title_full_unstemmed |
Projected changes in Arctic Ocean freshwater budgets |
title_sort |
projected changes in arctic ocean freshwater budgets |
publisher |
American Geophysical Union |
publishDate |
2007 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-292 https://doi.org/10.1029/2006JG000354 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Climate change Fram Strait Sea ice |
genre_facet |
Arctic Arctic Ocean Climate change Fram Strait Sea ice |
op_relation |
Journal of Geophysical Research-Biogeosciences http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-292 doi:10.1029/2006JG000354 ark:/85065/d7d79bnb |
op_rights |
Copyright 2007 American Geophysical Union. |
op_doi |
https://doi.org/10.1029/2006JG000354 |
container_title |
Journal of Geophysical Research: Biogeosciences |
container_volume |
112 |
container_issue |
G4 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1778519199748980736 |