Interannual variation of modified Circumpolar Deep Water volume in the Dotson-Getz Trough, West Antarctica ...
<!--!introduction!--> In recent decades, wide-spread thinning of ice shelves in the Amundsen Sea has been recorded driven by basal melting. Relatively warm modified Circumpolar Deep Water (mCDW) flows onto the continental shelf and fills the Dotson-Getz Trough (DGT) and reaches the base of the...
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GFZ German Research Centre for Geosciences
2023
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ftdatacite:10.57757/iugg23-0761 2023-06-11T04:03:36+02:00 Interannual variation of modified Circumpolar Deep Water volume in the Dotson-Getz Trough, West Antarctica ... Kim, Tae-Wan Yang, Heewon Kim, Yeonggi Yoo, Jaeill Park, Jisoo 2023 https://dx.doi.org/10.57757/iugg23-0761 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016716 unknown GFZ German Research Centre for Geosciences Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 ConferencePaper Oral Article 2023 ftdatacite https://doi.org/10.57757/iugg23-0761 2023-06-01T11:08:34Z <!--!introduction!--> In recent decades, wide-spread thinning of ice shelves in the Amundsen Sea has been recorded driven by basal melting. Relatively warm modified Circumpolar Deep Water (mCDW) flows onto the continental shelf and fills the Dotson-Getz Trough (DGT) and reaches the base of the Dotson Ice Shelf (DIS). Long-term hydrographic data (2007–2018) for the DGT were obtained during seven oceanographic surveys to study the interannual variation in mCDW volume and properties in the DGT and their causes. Although the mCDW volume showed relatively weak interannual variations at the entrance of the DGT, these variations intensified in front of the DIS. There, the mCDW volume was ~8 × 10 3 km 3 in 2007, rapidly decreased to 4.7 × 10 3 km 3 in 2014 before rebounding to 7.3 × 10 3 km 3 in 2018. Such interannual variability appears to result from local Ekman pumping along the DGT, with the dominant south-southeast wind modulating the amplitude of Ekman upwelling along the eastern boundary of the Amundsen ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... Conference Object Amundsen Sea Antarc* Antarctica Dotson Ice Shelf Ice Shelf Ice Shelves West Antarctica DataCite Metadata Store (German National Library of Science and Technology) Amundsen Sea Dotson Ice Shelf ENVELOPE(-112.367,-112.367,-74.400,-74.400) Dotson-Getz Trough ENVELOPE(-114.775,-114.775,-73.231,-73.231) Getz ENVELOPE(-145.217,-145.217,-76.550,-76.550) West Antarctica |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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unknown |
description |
<!--!introduction!--> In recent decades, wide-spread thinning of ice shelves in the Amundsen Sea has been recorded driven by basal melting. Relatively warm modified Circumpolar Deep Water (mCDW) flows onto the continental shelf and fills the Dotson-Getz Trough (DGT) and reaches the base of the Dotson Ice Shelf (DIS). Long-term hydrographic data (2007–2018) for the DGT were obtained during seven oceanographic surveys to study the interannual variation in mCDW volume and properties in the DGT and their causes. Although the mCDW volume showed relatively weak interannual variations at the entrance of the DGT, these variations intensified in front of the DIS. There, the mCDW volume was ~8 × 10 3 km 3 in 2007, rapidly decreased to 4.7 × 10 3 km 3 in 2014 before rebounding to 7.3 × 10 3 km 3 in 2018. Such interannual variability appears to result from local Ekman pumping along the DGT, with the dominant south-southeast wind modulating the amplitude of Ekman upwelling along the eastern boundary of the Amundsen ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
format |
Conference Object |
author |
Kim, Tae-Wan Yang, Heewon Kim, Yeonggi Yoo, Jaeill Park, Jisoo |
spellingShingle |
Kim, Tae-Wan Yang, Heewon Kim, Yeonggi Yoo, Jaeill Park, Jisoo Interannual variation of modified Circumpolar Deep Water volume in the Dotson-Getz Trough, West Antarctica ... |
author_facet |
Kim, Tae-Wan Yang, Heewon Kim, Yeonggi Yoo, Jaeill Park, Jisoo |
author_sort |
Kim, Tae-Wan |
title |
Interannual variation of modified Circumpolar Deep Water volume in the Dotson-Getz Trough, West Antarctica ... |
title_short |
Interannual variation of modified Circumpolar Deep Water volume in the Dotson-Getz Trough, West Antarctica ... |
title_full |
Interannual variation of modified Circumpolar Deep Water volume in the Dotson-Getz Trough, West Antarctica ... |
title_fullStr |
Interannual variation of modified Circumpolar Deep Water volume in the Dotson-Getz Trough, West Antarctica ... |
title_full_unstemmed |
Interannual variation of modified Circumpolar Deep Water volume in the Dotson-Getz Trough, West Antarctica ... |
title_sort |
interannual variation of modified circumpolar deep water volume in the dotson-getz trough, west antarctica ... |
publisher |
GFZ German Research Centre for Geosciences |
publishDate |
2023 |
url |
https://dx.doi.org/10.57757/iugg23-0761 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016716 |
long_lat |
ENVELOPE(-112.367,-112.367,-74.400,-74.400) ENVELOPE(-114.775,-114.775,-73.231,-73.231) ENVELOPE(-145.217,-145.217,-76.550,-76.550) |
geographic |
Amundsen Sea Dotson Ice Shelf Dotson-Getz Trough Getz West Antarctica |
geographic_facet |
Amundsen Sea Dotson Ice Shelf Dotson-Getz Trough Getz West Antarctica |
genre |
Amundsen Sea Antarc* Antarctica Dotson Ice Shelf Ice Shelf Ice Shelves West Antarctica |
genre_facet |
Amundsen Sea Antarc* Antarctica Dotson Ice Shelf Ice Shelf Ice Shelves West Antarctica |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.57757/iugg23-0761 |
_version_ |
1768380510996791296 |