The regional, seasonal, and lagged influence of the Amundsen Sea Low on Antarctic sea ice
The Amundsen Sea Low (ASL) is an important driver of Antarctic sea ice variations largely because of wind-driven sea ice and ocean transport anomalies. However, the nature of the relationship between the ASL and sea ice is complicated by large seasonality in the ice cover and the ASL location and de...
Published in: | Geophysical Research Letters |
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Language: | English |
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Online Access: | https://doi.org/10.1029/2018GL080140 |
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ftncar:oai:drupal-site.org:articles_22178 2023-09-05T13:11:44+02:00 The regional, seasonal, and lagged influence of the Amundsen Sea Low on Antarctic sea ice Holland, Marika M. (author) Landrum, Laura (author) Raphael, Marilyn N. (author) Kwok, Ronald (author) 2018-10-25 https://doi.org/10.1029/2018GL080140 en eng Geophysical Research Letters--Geophys. Res. Lett.--00948276 Bootstrap Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS, Version 3--10.5067/7Q8HCCWS4I0R ERA-Interim Project, Single Parameter 6-Hourly Surface Analysis and Surface Forecast Time Series--10.5065/D64747WN articles:22178 ark:/85065/d7b27z8r doi:10.1029/2018GL080140 Copyright 2018 American Geophysical Union. article Text 2018 ftncar https://doi.org/10.1029/2018GL080140 2023-08-14T18:49:05Z The Amundsen Sea Low (ASL) is an important driver of Antarctic sea ice variations largely because of wind-driven sea ice and ocean transport anomalies. However, the nature of the relationship between the ASL and sea ice is complicated by large seasonality in the ice cover and the ASL location and depth. Here we explore these relationships as a function of region, season, and lag. We find that the ASL can have a markedly different and sometimes opposite sign influence on sea ice in some regions, such as the western Ross Sea, depending on the season. This is in part due to differing influences of ASL-related meridional and zonal winds for ice transport in different times of year. The sea ice response to ASL variations is often largest at a lag of some months and can persist for up to 8 months. Article in Journal/Newspaper Amundsen Sea Antarc* Antarctic Ross Sea Sea ice OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Antarctic Ross Sea Amundsen Sea Geophysical Research Letters 45 20 |
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 an important driver of Antarctic sea ice variations largely because of wind-driven sea ice and ocean transport anomalies. However, the nature of the relationship between the ASL and sea ice is complicated by large seasonality in the ice cover and the ASL location and depth. Here we explore these relationships as a function of region, season, and lag. We find that the ASL can have a markedly different and sometimes opposite sign influence on sea ice in some regions, such as the western Ross Sea, depending on the season. This is in part due to differing influences of ASL-related meridional and zonal winds for ice transport in different times of year. The sea ice response to ASL variations is often largest at a lag of some months and can persist for up to 8 months. |
author2 |
Holland, Marika M. (author) Landrum, Laura (author) Raphael, Marilyn N. (author) Kwok, Ronald (author) |
format |
Article in Journal/Newspaper |
title |
The regional, seasonal, and lagged influence of the Amundsen Sea Low on Antarctic sea ice |
spellingShingle |
The regional, seasonal, and lagged influence of the Amundsen Sea Low on Antarctic sea ice |
title_short |
The regional, seasonal, and lagged influence of the Amundsen Sea Low on Antarctic sea ice |
title_full |
The regional, seasonal, and lagged influence of the Amundsen Sea Low on Antarctic sea ice |
title_fullStr |
The regional, seasonal, and lagged influence of the Amundsen Sea Low on Antarctic sea ice |
title_full_unstemmed |
The regional, seasonal, and lagged influence of the Amundsen Sea Low on Antarctic sea ice |
title_sort |
regional, seasonal, and lagged influence of the amundsen sea low on antarctic sea ice |
publishDate |
2018 |
url |
https://doi.org/10.1029/2018GL080140 |
geographic |
Antarctic Ross Sea Amundsen Sea |
geographic_facet |
Antarctic Ross Sea Amundsen Sea |
genre |
Amundsen Sea Antarc* Antarctic Ross Sea Sea ice |
genre_facet |
Amundsen Sea Antarc* Antarctic Ross Sea Sea ice |
op_relation |
Geophysical Research Letters--Geophys. Res. Lett.--00948276 Bootstrap Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS, Version 3--10.5067/7Q8HCCWS4I0R ERA-Interim Project, Single Parameter 6-Hourly Surface Analysis and Surface Forecast Time Series--10.5065/D64747WN articles:22178 ark:/85065/d7b27z8r doi:10.1029/2018GL080140 |
op_rights |
Copyright 2018 American Geophysical Union. |
op_doi |
https://doi.org/10.1029/2018GL080140 |
container_title |
Geophysical Research Letters |
container_volume |
45 |
container_issue |
20 |
_version_ |
1776196927467028480 |