The salinity budget of the Ross Sea continental shelf, Antarctica
Towards understanding the trend and variability in the bottom water salinity in the Ross Sea, this study focuses on the seasonality of the salinity budget over the Ross Sea continental shelf, using a new coupled regional ocean-sea ice-ice shelf model. Owing to the sea ice production, the upstream ad...
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5016194 2023-06-11T04:06:53+02:00 The salinity budget of the Ross Sea continental shelf, Antarctica Yan, L. Wang, Z. Liu, C. Qin, Q. Qian, J. 2023 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016194 eng eng info:eu-repo/semantics/altIdentifier/doi/10.57757/IUGG23-0284 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016194 XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) info:eu-repo/semantics/conferenceObject 2023 ftgfzpotsdam https://doi.org/10.57757/IUGG23-0284 2023-04-23T23:38:34Z Towards understanding the trend and variability in the bottom water salinity in the Ross Sea, this study focuses on the seasonality of the salinity budget over the Ross Sea continental shelf, using a new coupled regional ocean-sea ice-ice shelf model. Owing to the sea ice production, the upstream advection, and the glacial melting, the Ross Sea continental shelf is characterized by the relatively saltier water on the western shelf than on the eastern shelf, with the saltiest water in the Terra Nova Bay Polynya. During the early freezing season (March-April), there is a remarkable sea ice production over the broad continental shelf, which makes a significant contribution to the production of High Salinity Shelf Water (HSSW). The brine rejection in the polynyas leads to the salinification and deepening of the mixed layer, yet the upstream advection acts to decrease the salinity below the mixed layer until the deep convection is fully developed throughout the water column. The seasonal cycle of the salinity budget in the Ross Sea continental shelf is largely determined by the formation/melting of sea ice, the intrusion of modified Circumpolar Deep Water, and the outflow of HSSW, while the contribution of the Ross Ice Shelf melting is relatively small. Conference Object Antarc* Antarctica Ice Shelf Ross Ice Shelf Ross Sea Sea ice GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Ross Ice Shelf Ross Sea Terra Nova Bay Western Shelf ENVELOPE(164.448,164.448,-77.780,-77.780) |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
English |
description |
Towards understanding the trend and variability in the bottom water salinity in the Ross Sea, this study focuses on the seasonality of the salinity budget over the Ross Sea continental shelf, using a new coupled regional ocean-sea ice-ice shelf model. Owing to the sea ice production, the upstream advection, and the glacial melting, the Ross Sea continental shelf is characterized by the relatively saltier water on the western shelf than on the eastern shelf, with the saltiest water in the Terra Nova Bay Polynya. During the early freezing season (March-April), there is a remarkable sea ice production over the broad continental shelf, which makes a significant contribution to the production of High Salinity Shelf Water (HSSW). The brine rejection in the polynyas leads to the salinification and deepening of the mixed layer, yet the upstream advection acts to decrease the salinity below the mixed layer until the deep convection is fully developed throughout the water column. The seasonal cycle of the salinity budget in the Ross Sea continental shelf is largely determined by the formation/melting of sea ice, the intrusion of modified Circumpolar Deep Water, and the outflow of HSSW, while the contribution of the Ross Ice Shelf melting is relatively small. |
format |
Conference Object |
author |
Yan, L. Wang, Z. Liu, C. Qin, Q. Qian, J. |
spellingShingle |
Yan, L. Wang, Z. Liu, C. Qin, Q. Qian, J. The salinity budget of the Ross Sea continental shelf, Antarctica |
author_facet |
Yan, L. Wang, Z. Liu, C. Qin, Q. Qian, J. |
author_sort |
Yan, L. |
title |
The salinity budget of the Ross Sea continental shelf, Antarctica |
title_short |
The salinity budget of the Ross Sea continental shelf, Antarctica |
title_full |
The salinity budget of the Ross Sea continental shelf, Antarctica |
title_fullStr |
The salinity budget of the Ross Sea continental shelf, Antarctica |
title_full_unstemmed |
The salinity budget of the Ross Sea continental shelf, Antarctica |
title_sort |
salinity budget of the ross sea continental shelf, antarctica |
publishDate |
2023 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016194 |
long_lat |
ENVELOPE(164.448,164.448,-77.780,-77.780) |
geographic |
Ross Ice Shelf Ross Sea Terra Nova Bay Western Shelf |
geographic_facet |
Ross Ice Shelf Ross Sea Terra Nova Bay Western Shelf |
genre |
Antarc* Antarctica Ice Shelf Ross Ice Shelf Ross Sea Sea ice |
genre_facet |
Antarc* Antarctica Ice Shelf Ross Ice Shelf Ross Sea Sea ice |
op_source |
XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.57757/IUGG23-0284 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016194 |
op_doi |
https://doi.org/10.57757/IUGG23-0284 |
_version_ |
1768379091976716288 |