Interannual variations of heat budget in the lower layer of the eastern Ross Sea shelf and the forcing mechanisms in the Southern Ocean State Estimate
Abstract The temporal variation of heat budget in the lower layer of the eastern Ross Sea shelf (ERSS) is crucial for understanding the stability of ice shelves in the Ross Sea. In this study, a 6‐year (2005–2010) simulation from the Southern Ocean State Estimate (SOSE) is employed to analyse the in...
Published in: | International Journal of Climatology |
---|---|
Main Authors: | , , , , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2023
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/joc.8132 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.8132 |
id |
crwiley:10.1002/joc.8132 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/joc.8132 2024-06-02T08:08:22+00:00 Interannual variations of heat budget in the lower layer of the eastern Ross Sea shelf and the forcing mechanisms in the Southern Ocean State Estimate Chen, Yuanjie Zhang, Zhaoru Wang, Xuezhu Liu, Xiaohui Zhou, Meng National Natural Science Foundation of China Science and Technology Commission of Shanghai Municipality National Key Research and Development Program of China 2023 http://dx.doi.org/10.1002/joc.8132 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.8132 en eng Wiley http://creativecommons.org/licenses/by-nc-nd/4.0/ International Journal of Climatology volume 43, issue 11, page 5055-5076 ISSN 0899-8418 1097-0088 journal-article 2023 crwiley https://doi.org/10.1002/joc.8132 2024-05-03T12:07:08Z Abstract The temporal variation of heat budget in the lower layer of the eastern Ross Sea shelf (ERSS) is crucial for understanding the stability of ice shelves in the Ross Sea. In this study, a 6‐year (2005–2010) simulation from the Southern Ocean State Estimate (SOSE) is employed to analyse the interannual variations of heat budget in the lower layer of the ERSS and the controlling mechanisms. The results reveal that the annual change in the heat content of the study region is dominated by the horizontal heat advection term, and only in 2015 the vertical advection and diffusion terms also play an important role. The horizontal advection term is affected by the intrusion of warm circumpolar deep water (CDW) onto the shelf across the northern boundary of the ERSS, the transport of cold dense shelf water (DSW) from the western Ross Sea shelf, and the transport of CDW across the western boundary of the ERSS. The contributions of these physical processes to the change in annual heat content vary between years. The interannual variation of the CDW intrusion is associated with the strength of eddy activity over the slope, and the interannual variation of heat transports associated with DSW is affected by both the extent of DSW on the western shelf and the coastal circulations that affect the eastward spread of DSW. Article in Journal/Newspaper Ice Shelves Ross Sea Southern Ocean Wiley Online Library Ross Sea Southern Ocean Western Shelf ENVELOPE(164.448,164.448,-77.780,-77.780) International Journal of Climatology 43 11 5055 5076 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract The temporal variation of heat budget in the lower layer of the eastern Ross Sea shelf (ERSS) is crucial for understanding the stability of ice shelves in the Ross Sea. In this study, a 6‐year (2005–2010) simulation from the Southern Ocean State Estimate (SOSE) is employed to analyse the interannual variations of heat budget in the lower layer of the ERSS and the controlling mechanisms. The results reveal that the annual change in the heat content of the study region is dominated by the horizontal heat advection term, and only in 2015 the vertical advection and diffusion terms also play an important role. The horizontal advection term is affected by the intrusion of warm circumpolar deep water (CDW) onto the shelf across the northern boundary of the ERSS, the transport of cold dense shelf water (DSW) from the western Ross Sea shelf, and the transport of CDW across the western boundary of the ERSS. The contributions of these physical processes to the change in annual heat content vary between years. The interannual variation of the CDW intrusion is associated with the strength of eddy activity over the slope, and the interannual variation of heat transports associated with DSW is affected by both the extent of DSW on the western shelf and the coastal circulations that affect the eastward spread of DSW. |
author2 |
National Natural Science Foundation of China Science and Technology Commission of Shanghai Municipality National Key Research and Development Program of China |
format |
Article in Journal/Newspaper |
author |
Chen, Yuanjie Zhang, Zhaoru Wang, Xuezhu Liu, Xiaohui Zhou, Meng |
spellingShingle |
Chen, Yuanjie Zhang, Zhaoru Wang, Xuezhu Liu, Xiaohui Zhou, Meng Interannual variations of heat budget in the lower layer of the eastern Ross Sea shelf and the forcing mechanisms in the Southern Ocean State Estimate |
author_facet |
Chen, Yuanjie Zhang, Zhaoru Wang, Xuezhu Liu, Xiaohui Zhou, Meng |
author_sort |
Chen, Yuanjie |
title |
Interannual variations of heat budget in the lower layer of the eastern Ross Sea shelf and the forcing mechanisms in the Southern Ocean State Estimate |
title_short |
Interannual variations of heat budget in the lower layer of the eastern Ross Sea shelf and the forcing mechanisms in the Southern Ocean State Estimate |
title_full |
Interannual variations of heat budget in the lower layer of the eastern Ross Sea shelf and the forcing mechanisms in the Southern Ocean State Estimate |
title_fullStr |
Interannual variations of heat budget in the lower layer of the eastern Ross Sea shelf and the forcing mechanisms in the Southern Ocean State Estimate |
title_full_unstemmed |
Interannual variations of heat budget in the lower layer of the eastern Ross Sea shelf and the forcing mechanisms in the Southern Ocean State Estimate |
title_sort |
interannual variations of heat budget in the lower layer of the eastern ross sea shelf and the forcing mechanisms in the southern ocean state estimate |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1002/joc.8132 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.8132 |
long_lat |
ENVELOPE(164.448,164.448,-77.780,-77.780) |
geographic |
Ross Sea Southern Ocean Western Shelf |
geographic_facet |
Ross Sea Southern Ocean Western Shelf |
genre |
Ice Shelves Ross Sea Southern Ocean |
genre_facet |
Ice Shelves Ross Sea Southern Ocean |
op_source |
International Journal of Climatology volume 43, issue 11, page 5055-5076 ISSN 0899-8418 1097-0088 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1002/joc.8132 |
container_title |
International Journal of Climatology |
container_volume |
43 |
container_issue |
11 |
container_start_page |
5055 |
op_container_end_page |
5076 |
_version_ |
1800753605474516992 |