Sea level variability in the Arctic Ocean from AOMIP models
Author Posting. © American Geophysical Union, 2007. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research 112 (2007): C04S08, doi:10.1029/2006JC003916. Monthly sea leve...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/3673 2023-05-15T14:41:21+02:00 Sea level variability in the Arctic Ocean from AOMIP models Proshutinsky, Andrey Ashik, Igor M. Hakkinen, Sirpa M. A. Hunke, Elizabeth C. Krishfield, Richard A. Maltrud, Mathew E. Maslowski, Wieslaw Zhang, Jinlun 2007-04-26 application/pdf https://hdl.handle.net/1912/3673 en_US eng American Geophysical Union https://doi.org/10.1029/2006JC003916 Journal of Geophysical Research 112 (2007): C04S08 https://hdl.handle.net/1912/3673 doi:10.1029/2006JC003916 Journal of Geophysical Research 112 (2007): C04S08 doi:10.1029/2006JC003916 Arctic Ocean models Model validation Sea level variability Article 2007 ftwhoas https://doi.org/10.1029/2006JC003916 2022-05-28T22:58:02Z Author Posting. © American Geophysical Union, 2007. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research 112 (2007): C04S08, doi:10.1029/2006JC003916. Monthly sea levels from five Arctic Ocean Model Intercomparison Project (AOMIP) models are analyzed and validated against observations in the Arctic Ocean. The AOMIP models are able to simulate variability of sea level reasonably well, but several improvements are needed to reduce model errors. It is suggested that the models will improve if their domains have a minimum depth less than 10 m. It is also recommended to take into account forcing associated with atmospheric loading, fast ice, and volume water fluxes representing Bering Strait inflow and river runoff. Several aspects of sea level variability in the Arctic Ocean are investigated based on updated observed sea level time series. The observed rate of sea level rise corrected for the glacial isostatic adjustment at 9 stations in the Kara, Laptev, and East Siberian seas for 1954–2006 is estimated as 0.250 cm/yr. There is a well pronounced decadal variability in the observed sea level time series. The 5-year running mean sea level signal correlates well with the annual Arctic Oscillation (AO) index and the sea level atmospheric pressure (SLP) at coastal stations and the North Pole. For 1954–2000 all model results reflect this correlation very well, indicating that the long-term model forcing and model reaction to the forcing are correct. Consistent with the influences of AO-driven processes, the sea level in the Arctic Ocean dropped significantly after 1990 and increased after the circulation regime changed from cyclonic to anticyclonic in 1997. In contrast, from 2000 to 2006 the sea level rose despite the stabilization of the AO index at its lowest values after 2000. This research is supported by the National Science Foundation Office of Polar Programs (under cooperative ... Article in Journal/Newspaper Arctic Arctic Ocean Bering Strait Kara-Laptev laptev National Science Foundation Office of Polar Programs North Pole Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Arctic Arctic Ocean Bering Strait North Pole Journal of Geophysical Research 112 C4 |
institution |
Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
English |
topic |
Arctic Ocean models Model validation Sea level variability |
spellingShingle |
Arctic Ocean models Model validation Sea level variability Proshutinsky, Andrey Ashik, Igor M. Hakkinen, Sirpa M. A. Hunke, Elizabeth C. Krishfield, Richard A. Maltrud, Mathew E. Maslowski, Wieslaw Zhang, Jinlun Sea level variability in the Arctic Ocean from AOMIP models |
topic_facet |
Arctic Ocean models Model validation Sea level variability |
description |
Author Posting. © American Geophysical Union, 2007. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research 112 (2007): C04S08, doi:10.1029/2006JC003916. Monthly sea levels from five Arctic Ocean Model Intercomparison Project (AOMIP) models are analyzed and validated against observations in the Arctic Ocean. The AOMIP models are able to simulate variability of sea level reasonably well, but several improvements are needed to reduce model errors. It is suggested that the models will improve if their domains have a minimum depth less than 10 m. It is also recommended to take into account forcing associated with atmospheric loading, fast ice, and volume water fluxes representing Bering Strait inflow and river runoff. Several aspects of sea level variability in the Arctic Ocean are investigated based on updated observed sea level time series. The observed rate of sea level rise corrected for the glacial isostatic adjustment at 9 stations in the Kara, Laptev, and East Siberian seas for 1954–2006 is estimated as 0.250 cm/yr. There is a well pronounced decadal variability in the observed sea level time series. The 5-year running mean sea level signal correlates well with the annual Arctic Oscillation (AO) index and the sea level atmospheric pressure (SLP) at coastal stations and the North Pole. For 1954–2000 all model results reflect this correlation very well, indicating that the long-term model forcing and model reaction to the forcing are correct. Consistent with the influences of AO-driven processes, the sea level in the Arctic Ocean dropped significantly after 1990 and increased after the circulation regime changed from cyclonic to anticyclonic in 1997. In contrast, from 2000 to 2006 the sea level rose despite the stabilization of the AO index at its lowest values after 2000. This research is supported by the National Science Foundation Office of Polar Programs (under cooperative ... |
format |
Article in Journal/Newspaper |
author |
Proshutinsky, Andrey Ashik, Igor M. Hakkinen, Sirpa M. A. Hunke, Elizabeth C. Krishfield, Richard A. Maltrud, Mathew E. Maslowski, Wieslaw Zhang, Jinlun |
author_facet |
Proshutinsky, Andrey Ashik, Igor M. Hakkinen, Sirpa M. A. Hunke, Elizabeth C. Krishfield, Richard A. Maltrud, Mathew E. Maslowski, Wieslaw Zhang, Jinlun |
author_sort |
Proshutinsky, Andrey |
title |
Sea level variability in the Arctic Ocean from AOMIP models |
title_short |
Sea level variability in the Arctic Ocean from AOMIP models |
title_full |
Sea level variability in the Arctic Ocean from AOMIP models |
title_fullStr |
Sea level variability in the Arctic Ocean from AOMIP models |
title_full_unstemmed |
Sea level variability in the Arctic Ocean from AOMIP models |
title_sort |
sea level variability in the arctic ocean from aomip models |
publisher |
American Geophysical Union |
publishDate |
2007 |
url |
https://hdl.handle.net/1912/3673 |
geographic |
Arctic Arctic Ocean Bering Strait North Pole |
geographic_facet |
Arctic Arctic Ocean Bering Strait North Pole |
genre |
Arctic Arctic Ocean Bering Strait Kara-Laptev laptev National Science Foundation Office of Polar Programs North Pole |
genre_facet |
Arctic Arctic Ocean Bering Strait Kara-Laptev laptev National Science Foundation Office of Polar Programs North Pole |
op_source |
Journal of Geophysical Research 112 (2007): C04S08 doi:10.1029/2006JC003916 |
op_relation |
https://doi.org/10.1029/2006JC003916 Journal of Geophysical Research 112 (2007): C04S08 https://hdl.handle.net/1912/3673 doi:10.1029/2006JC003916 |
op_doi |
https://doi.org/10.1029/2006JC003916 |
container_title |
Journal of Geophysical Research |
container_volume |
112 |
container_issue |
C4 |
_version_ |
1766313145732694016 |