The large-scale energy budget of the Arctic
This paper synthesizes a variety of atmospheric and oceanic data to examine the large-scale energy budget of the Arctic. Assessment of the atmospheric budget relies primarily on the ERA-40 reanalysis. The seasonal cycles of vertically integrated atmospheric energy storage and the convergence of ener...
Published in: | Journal of Geophysical Research |
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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-000-000-004-084 https://doi.org/10.1029/2006JD008230 |
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ftncar:oai:drupal-site.org:articles_6780 2023-10-01T03:53:29+02:00 The large-scale energy budget of the Arctic Serreze, Mark (author) Barrett, Andrew (author) Slater, Andrew (author) Steele, Michael (author) Zhang, Jinlun (author) Trenberth, Kevin (author) 2007-06-14 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-084 https://doi.org/10.1029/2006JD008230 en eng American Geophysical Union Journal of Geophysical Research http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-084 doi:10.1029/2006JD008230 ark:/85065/d7c53m36 Copyright 2007 American Geophysical Union. Text article 2007 ftncar https://doi.org/10.1029/2006JD008230 2023-09-04T18:27:46Z This paper synthesizes a variety of atmospheric and oceanic data to examine the large-scale energy budget of the Arctic. Assessment of the atmospheric budget relies primarily on the ERA-40 reanalysis. The seasonal cycles of vertically integrated atmospheric energy storage and the convergence of energy transport from ERA-40, as evaluated for the polar cap (defined by the 70°N latitude circle), in general compare well with realizations from the National Centers for Environmental Prediction/National Center for Atmospheric Research reanalysis over the period 1979 - 2001. However, shortcomings in top of atmosphere radiation, as compared to satellite data, and the net surface flux, contribute to large energy budget residuals in ERA-40. The seasonal cycle of atmospheric energy storage is strongly modulated by the net surface flux, which is also the primary driver of seasonal changes in heat storage within the Arctic Ocean. Averaged for an Arctic Ocean domain, the July net surface flux from ERA-40 of -100 W m⁻² (i.e., into the ocean), associated with sea ice melt and oceanic sensible heat gain, exceeds the atmospheric energy transport convergence of 91 W m⁻². During winter (for which budget residuals are large), oceanic sensible heat loss and sea ice growth yield an upward surface flux of 50-60 W m⁻², complemented with an atmospheric energy convergence of 80-90 W m⁻² to provide a net radiation loss to space of 175-180 W m⁻². Article in Journal/Newspaper Arctic Arctic Ocean Sea ice OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Arctic Arctic Ocean Journal of Geophysical Research 112 D11 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
This paper synthesizes a variety of atmospheric and oceanic data to examine the large-scale energy budget of the Arctic. Assessment of the atmospheric budget relies primarily on the ERA-40 reanalysis. The seasonal cycles of vertically integrated atmospheric energy storage and the convergence of energy transport from ERA-40, as evaluated for the polar cap (defined by the 70°N latitude circle), in general compare well with realizations from the National Centers for Environmental Prediction/National Center for Atmospheric Research reanalysis over the period 1979 - 2001. However, shortcomings in top of atmosphere radiation, as compared to satellite data, and the net surface flux, contribute to large energy budget residuals in ERA-40. The seasonal cycle of atmospheric energy storage is strongly modulated by the net surface flux, which is also the primary driver of seasonal changes in heat storage within the Arctic Ocean. Averaged for an Arctic Ocean domain, the July net surface flux from ERA-40 of -100 W m⁻² (i.e., into the ocean), associated with sea ice melt and oceanic sensible heat gain, exceeds the atmospheric energy transport convergence of 91 W m⁻². During winter (for which budget residuals are large), oceanic sensible heat loss and sea ice growth yield an upward surface flux of 50-60 W m⁻², complemented with an atmospheric energy convergence of 80-90 W m⁻² to provide a net radiation loss to space of 175-180 W m⁻². |
author2 |
Serreze, Mark (author) Barrett, Andrew (author) Slater, Andrew (author) Steele, Michael (author) Zhang, Jinlun (author) Trenberth, Kevin (author) |
format |
Article in Journal/Newspaper |
title |
The large-scale energy budget of the Arctic |
spellingShingle |
The large-scale energy budget of the Arctic |
title_short |
The large-scale energy budget of the Arctic |
title_full |
The large-scale energy budget of the Arctic |
title_fullStr |
The large-scale energy budget of the Arctic |
title_full_unstemmed |
The large-scale energy budget of the Arctic |
title_sort |
large-scale energy budget of the arctic |
publisher |
American Geophysical Union |
publishDate |
2007 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-084 https://doi.org/10.1029/2006JD008230 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Sea ice |
genre_facet |
Arctic Arctic Ocean Sea ice |
op_relation |
Journal of Geophysical Research http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-084 doi:10.1029/2006JD008230 ark:/85065/d7c53m36 |
op_rights |
Copyright 2007 American Geophysical Union. |
op_doi |
https://doi.org/10.1029/2006JD008230 |
container_title |
Journal of Geophysical Research |
container_volume |
112 |
container_issue |
D11 |
_version_ |
1778520109481984000 |