The Amundsen Sea Low: Variability, change, and impact on Antarctic climate
The Amundsen Sea low (ASL) is a climatological low pressure center that exerts considerable influence on the climate of West Antarctica. Its potential to explain important recent changes in Antarctic climate, for example, in temperature and sea ice extent, means that it has become the focus of an in...
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ftncar:oai:drupal-site.org:articles_18079 2023-09-05T13:11:44+02:00 The Amundsen Sea Low: Variability, change, and impact on Antarctic climate Raphael, M. (author) Marshall, G. (author) Turner, J. (author) Fogt, R. (author) Schneider, David (author) Dixon, D. (author) Hosking, J. (author) Jones, J. (author) Hobbs, W. (author) 2016-01-01 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-673 https://doi.org/10.1175/BAMS-D-14-00018.1 en eng American Meteorological Society Bulletin of the American Meteorological Society articles:18079 ark:/85065/d7gt5pqb http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-673 doi:10.1175/BAMS-D-14-00018.1 Copyright 2016 American Meteorological Society (AMS). Permission to use figures, tables, and brief excerpts from this work in scientific and educational works is hereby granted provided that the source is acknowledged. Any use of material in this work that is determined to be "fair use" under Section 107 or that satisfies the conditions specified in Section 108 of the U.S. Copyright Law (17 USC, as revised by P.L. 94-553) does not require the Society's permission. Republication, systematic reproduction, posting in electronic form on servers, or other uses of this material, except as exempted by the above statements, requires written permission or license from the AMS. Additional details are provided in the AMS Copyright Policies, available from the AMS at 617-227-2425 or amspubs@ametsoc.org. Permission to place a copy of this work on this server has been provided by the AMS. The AMS does not guarantee that the copy provided here is an accurate copy of the published work. Text article 2016 ftncar https://doi.org/10.1175/BAMS-D-14-00018.1 2023-08-14T18:46:47Z The Amundsen Sea low (ASL) is a climatological low pressure center that exerts considerable influence on the climate of West Antarctica. Its potential to explain important recent changes in Antarctic climate, for example, in temperature and sea ice extent, means that it has become the focus of an increasing number of studies. Here, the authors summarize the current understanding of the ASL, using reanalysis datasets to analyze recent variability and trends, as well as ice-core chemistry and climate model projections, to examine past and future changes in the ASL, respectively. The ASL has deepened in recent decades, affecting the climate through its influence on the regional meridional wind field, which controls the advection of moisture and heat into the continent. Deepening of the ASL in spring is consistent with observed West Antarctic warming and greater sea ice extent in the Ross Sea. Climate model simulations for recent decades indicate that this deepening is mediated by tropical variability while climate model projections through the twenty-first century suggest that the ASL will deepen in some seasons in response to greenhouse gas concentration increases. AGS-1048899 PLR-1341527 ANT1235231 Article in Journal/Newspaper Amundsen Sea Antarc* Antarctic Antarctica ice core Ross Sea Sea ice West Antarctica OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Amundsen Sea Antarctic Ross Sea West Antarctica Bulletin of the American Meteorological Society 97 1 111 121 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
The Amundsen Sea low (ASL) is a climatological low pressure center that exerts considerable influence on the climate of West Antarctica. Its potential to explain important recent changes in Antarctic climate, for example, in temperature and sea ice extent, means that it has become the focus of an increasing number of studies. Here, the authors summarize the current understanding of the ASL, using reanalysis datasets to analyze recent variability and trends, as well as ice-core chemistry and climate model projections, to examine past and future changes in the ASL, respectively. The ASL has deepened in recent decades, affecting the climate through its influence on the regional meridional wind field, which controls the advection of moisture and heat into the continent. Deepening of the ASL in spring is consistent with observed West Antarctic warming and greater sea ice extent in the Ross Sea. Climate model simulations for recent decades indicate that this deepening is mediated by tropical variability while climate model projections through the twenty-first century suggest that the ASL will deepen in some seasons in response to greenhouse gas concentration increases. AGS-1048899 PLR-1341527 ANT1235231 |
author2 |
Raphael, M. (author) Marshall, G. (author) Turner, J. (author) Fogt, R. (author) Schneider, David (author) Dixon, D. (author) Hosking, J. (author) Jones, J. (author) Hobbs, W. (author) |
format |
Article in Journal/Newspaper |
title |
The Amundsen Sea Low: Variability, change, and impact on Antarctic climate |
spellingShingle |
The Amundsen Sea Low: Variability, change, and impact on Antarctic climate |
title_short |
The Amundsen Sea Low: Variability, change, and impact on Antarctic climate |
title_full |
The Amundsen Sea Low: Variability, change, and impact on Antarctic climate |
title_fullStr |
The Amundsen Sea Low: Variability, change, and impact on Antarctic climate |
title_full_unstemmed |
The Amundsen Sea Low: Variability, change, and impact on Antarctic climate |
title_sort |
amundsen sea low: variability, change, and impact on antarctic climate |
publisher |
American Meteorological Society |
publishDate |
2016 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-673 https://doi.org/10.1175/BAMS-D-14-00018.1 |
geographic |
Amundsen Sea Antarctic Ross Sea West Antarctica |
geographic_facet |
Amundsen Sea Antarctic Ross Sea West Antarctica |
genre |
Amundsen Sea Antarc* Antarctic Antarctica ice core Ross Sea Sea ice West Antarctica |
genre_facet |
Amundsen Sea Antarc* Antarctic Antarctica ice core Ross Sea Sea ice West Antarctica |
op_relation |
Bulletin of the American Meteorological Society articles:18079 ark:/85065/d7gt5pqb http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-673 doi:10.1175/BAMS-D-14-00018.1 |
op_rights |
Copyright 2016 American Meteorological Society (AMS). Permission to use figures, tables, and brief excerpts from this work in scientific and educational works is hereby granted provided that the source is acknowledged. Any use of material in this work that is determined to be "fair use" under Section 107 or that satisfies the conditions specified in Section 108 of the U.S. Copyright Law (17 USC, as revised by P.L. 94-553) does not require the Society's permission. Republication, systematic reproduction, posting in electronic form on servers, or other uses of this material, except as exempted by the above statements, requires written permission or license from the AMS. Additional details are provided in the AMS Copyright Policies, available from the AMS at 617-227-2425 or amspubs@ametsoc.org. Permission to place a copy of this work on this server has been provided by the AMS. The AMS does not guarantee that the copy provided here is an accurate copy of the published work. |
op_doi |
https://doi.org/10.1175/BAMS-D-14-00018.1 |
container_title |
Bulletin of the American Meteorological Society |
container_volume |
97 |
container_issue |
1 |
container_start_page |
111 |
op_container_end_page |
121 |
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1776196938233806848 |