Storm-driven mixing and potential impact on the Arctic Ocean
Author Posting. © American Geophysical Union, 2004. 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 109 (2004): C04008, doi:10.1029/2001JC001248. Observations of...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/3789 2023-05-15T14:50:10+02:00 Storm-driven mixing and potential impact on the Arctic Ocean Yang, Jiayan Comiso, Josefino C. Walsh, David Krishfield, Richard A. Honjo, Susumu 2004-04-09 application/pdf https://hdl.handle.net/1912/3789 en_US eng American Geophysical Union https://doi.org/10.1029/2001JC001248 Journal of Geophysical Research 109 (2004): C04008 https://hdl.handle.net/1912/3789 Journal of Geophysical Research 109 (2004): C04008 Arctic Ocean Mixing Storm Upper ocean Article 2004 ftwhoas https://doi.org/10.1029/2001JC001248 2022-05-28T22:58:04Z Author Posting. © American Geophysical Union, 2004. 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 109 (2004): C04008, doi:10.1029/2001JC001248. Observations of the ocean, atmosphere, and ice made by Ice-Ocean Environmental Buoys indicate that mixing events reaching the depth of the halocline have occurred in various regions in the Arctic Ocean. Our analysis suggests that these mixing events were mechanically forced by intense storms moving across the buoy sites. In this study, we analyzed these mixing events in the context of storm developments that occurred in the Beaufort Sea and in the general area just north of Fram Strait, two areas with quite different hydrographic structures. The Beaufort Sea is strongly influenced by inflow of Pacific water through Bering Strait, while the area north of Fram Strait is directly affected by the inflow of warm and salty North Atlantic water. Our analyses of the basin-wide evolution of the surface pressure and geostrophic wind fields indicate that the characteristics of the storms could be very different. The buoy-observed mixing occurred only in the spring and winter seasons when the stratification was relatively weak. This indicates the importance of stratification, although the mixing itself was mechanically driven. We also analyze the distribution of storms, both the long-term climatology and the patterns for each year in the past 2 decades. The frequency of storms is also shown to be correlated (but not strongly) to Arctic Oscillation indices. This study indicates that the formation of new ice that leads to brine rejection is unlikely the mechanism that results in the type of mixing that could overturn the halocline. On the other hand, synoptic-scale storms can force mixing deep enough to the halocline and thermocline layer. Despite a very stable stratification associated with the Arctic halocline, the warm subsurface thermocline ... Article in Journal/Newspaper Arctic Arctic Ocean Beaufort Sea Bering Strait Fram Strait North Atlantic Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Arctic Arctic Ocean Bering Strait Pacific Journal of Geophysical Research 109 C4 |
institution |
Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
English |
topic |
Arctic Ocean Mixing Storm Upper ocean |
spellingShingle |
Arctic Ocean Mixing Storm Upper ocean Yang, Jiayan Comiso, Josefino C. Walsh, David Krishfield, Richard A. Honjo, Susumu Storm-driven mixing and potential impact on the Arctic Ocean |
topic_facet |
Arctic Ocean Mixing Storm Upper ocean |
description |
Author Posting. © American Geophysical Union, 2004. 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 109 (2004): C04008, doi:10.1029/2001JC001248. Observations of the ocean, atmosphere, and ice made by Ice-Ocean Environmental Buoys indicate that mixing events reaching the depth of the halocline have occurred in various regions in the Arctic Ocean. Our analysis suggests that these mixing events were mechanically forced by intense storms moving across the buoy sites. In this study, we analyzed these mixing events in the context of storm developments that occurred in the Beaufort Sea and in the general area just north of Fram Strait, two areas with quite different hydrographic structures. The Beaufort Sea is strongly influenced by inflow of Pacific water through Bering Strait, while the area north of Fram Strait is directly affected by the inflow of warm and salty North Atlantic water. Our analyses of the basin-wide evolution of the surface pressure and geostrophic wind fields indicate that the characteristics of the storms could be very different. The buoy-observed mixing occurred only in the spring and winter seasons when the stratification was relatively weak. This indicates the importance of stratification, although the mixing itself was mechanically driven. We also analyze the distribution of storms, both the long-term climatology and the patterns for each year in the past 2 decades. The frequency of storms is also shown to be correlated (but not strongly) to Arctic Oscillation indices. This study indicates that the formation of new ice that leads to brine rejection is unlikely the mechanism that results in the type of mixing that could overturn the halocline. On the other hand, synoptic-scale storms can force mixing deep enough to the halocline and thermocline layer. Despite a very stable stratification associated with the Arctic halocline, the warm subsurface thermocline ... |
format |
Article in Journal/Newspaper |
author |
Yang, Jiayan Comiso, Josefino C. Walsh, David Krishfield, Richard A. Honjo, Susumu |
author_facet |
Yang, Jiayan Comiso, Josefino C. Walsh, David Krishfield, Richard A. Honjo, Susumu |
author_sort |
Yang, Jiayan |
title |
Storm-driven mixing and potential impact on the Arctic Ocean |
title_short |
Storm-driven mixing and potential impact on the Arctic Ocean |
title_full |
Storm-driven mixing and potential impact on the Arctic Ocean |
title_fullStr |
Storm-driven mixing and potential impact on the Arctic Ocean |
title_full_unstemmed |
Storm-driven mixing and potential impact on the Arctic Ocean |
title_sort |
storm-driven mixing and potential impact on the arctic ocean |
publisher |
American Geophysical Union |
publishDate |
2004 |
url |
https://hdl.handle.net/1912/3789 |
geographic |
Arctic Arctic Ocean Bering Strait Pacific |
geographic_facet |
Arctic Arctic Ocean Bering Strait Pacific |
genre |
Arctic Arctic Ocean Beaufort Sea Bering Strait Fram Strait North Atlantic |
genre_facet |
Arctic Arctic Ocean Beaufort Sea Bering Strait Fram Strait North Atlantic |
op_source |
Journal of Geophysical Research 109 (2004): C04008 |
op_relation |
https://doi.org/10.1029/2001JC001248 Journal of Geophysical Research 109 (2004): C04008 https://hdl.handle.net/1912/3789 |
op_doi |
https://doi.org/10.1029/2001JC001248 |
container_title |
Journal of Geophysical Research |
container_volume |
109 |
container_issue |
C4 |
_version_ |
1766321216896892928 |