The role of sea ice in the fresh water budget of the Weddell Sea
A coupled sea ice-ocean model of the Weddell Sea has been developed as part of the BRIOS (Bremerhaven Regional Ice-Ocean Simulations) project.It is based on the s-Coordinate Primitive Equation ocean Model (SPEM) and a dynamic-thermodynamic sea ice model with viscous-plastic rheologywhich also provid...
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ftawi:oai:epic.awi.de:3623 2023-09-05T13:12:05+02:00 The role of sea ice in the fresh water budget of the Weddell Sea Timmermann, Ralph Beckmann, A. Hellmer, Hartmut 2001 application/pdf https://epic.awi.de/id/eprint/3623/ https://epic.awi.de/id/eprint/3623/1/Tim2000a.pdf https://hdl.handle.net/10013/epic.14203 https://hdl.handle.net/10013/epic.14203.d001 unknown https://epic.awi.de/id/eprint/3623/1/Tim2000a.pdf https://hdl.handle.net/10013/epic.14203.d001 Timmermann, R. , Beckmann, A. and Hellmer, H. orcid:0000-0002-9357-9853 (2001) The role of sea ice in the fresh water budget of the Weddell Sea , Annals of Glaciology, 33 , pp. 419-424 . hdl:10013/epic.14203 EPIC3Annals of Glaciology, 33, pp. 419-424 Article isiRev 2001 ftawi 2023-08-22T19:44:07Z A coupled sea ice-ocean model of the Weddell Sea has been developed as part of the BRIOS (Bremerhaven Regional Ice-Ocean Simulations) project.It is based on the s-Coordinate Primitive Equation ocean Model (SPEM) and a dynamic-thermodynamic sea ice model with viscous-plastic rheologywhich also provides the thermohaline forcing at the base of the Antarctic ice shelves.Model runs are forced with wind, cloudiness, temperature and precipitation fields of the ECMWF and NCEP reanalyses.Model results show a good agreement with observations of ice extent, thickness and drift.Water mass properties and the large scale circulation are in good agreement with observations.Fresh water fluxes from sea ice formationas well as from ice shelf basal melting, and from precipitation are computed and compiled to the fresh water budget of the Weddell Sea.Supporting estimates based on hydrographic observations, model results indicate that fresh water loss due to sea ice formation and export (34~mSv) is roughly balanced by ice shelf basal melting (9~mSv) and net precipitation (19~mSv).Furthermore, sea ice formation appears as a necessary condition for bottom water production in the Weddell Sea. Article in Journal/Newspaper Annals of Glaciology Antarc* Antarctic Ice Shelf Sea ice Weddell Sea Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic The Antarctic Weddell Weddell Sea |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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description |
A coupled sea ice-ocean model of the Weddell Sea has been developed as part of the BRIOS (Bremerhaven Regional Ice-Ocean Simulations) project.It is based on the s-Coordinate Primitive Equation ocean Model (SPEM) and a dynamic-thermodynamic sea ice model with viscous-plastic rheologywhich also provides the thermohaline forcing at the base of the Antarctic ice shelves.Model runs are forced with wind, cloudiness, temperature and precipitation fields of the ECMWF and NCEP reanalyses.Model results show a good agreement with observations of ice extent, thickness and drift.Water mass properties and the large scale circulation are in good agreement with observations.Fresh water fluxes from sea ice formationas well as from ice shelf basal melting, and from precipitation are computed and compiled to the fresh water budget of the Weddell Sea.Supporting estimates based on hydrographic observations, model results indicate that fresh water loss due to sea ice formation and export (34~mSv) is roughly balanced by ice shelf basal melting (9~mSv) and net precipitation (19~mSv).Furthermore, sea ice formation appears as a necessary condition for bottom water production in the Weddell Sea. |
format |
Article in Journal/Newspaper |
author |
Timmermann, Ralph Beckmann, A. Hellmer, Hartmut |
spellingShingle |
Timmermann, Ralph Beckmann, A. Hellmer, Hartmut The role of sea ice in the fresh water budget of the Weddell Sea |
author_facet |
Timmermann, Ralph Beckmann, A. Hellmer, Hartmut |
author_sort |
Timmermann, Ralph |
title |
The role of sea ice in the fresh water budget of the Weddell Sea |
title_short |
The role of sea ice in the fresh water budget of the Weddell Sea |
title_full |
The role of sea ice in the fresh water budget of the Weddell Sea |
title_fullStr |
The role of sea ice in the fresh water budget of the Weddell Sea |
title_full_unstemmed |
The role of sea ice in the fresh water budget of the Weddell Sea |
title_sort |
role of sea ice in the fresh water budget of the weddell sea |
publishDate |
2001 |
url |
https://epic.awi.de/id/eprint/3623/ https://epic.awi.de/id/eprint/3623/1/Tim2000a.pdf https://hdl.handle.net/10013/epic.14203 https://hdl.handle.net/10013/epic.14203.d001 |
geographic |
Antarctic The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic The Antarctic Weddell Weddell Sea |
genre |
Annals of Glaciology Antarc* Antarctic Ice Shelf Sea ice Weddell Sea |
genre_facet |
Annals of Glaciology Antarc* Antarctic Ice Shelf Sea ice Weddell Sea |
op_source |
EPIC3Annals of Glaciology, 33, pp. 419-424 |
op_relation |
https://epic.awi.de/id/eprint/3623/1/Tim2000a.pdf https://hdl.handle.net/10013/epic.14203.d001 Timmermann, R. , Beckmann, A. and Hellmer, H. orcid:0000-0002-9357-9853 (2001) The role of sea ice in the fresh water budget of the Weddell Sea , Annals of Glaciology, 33 , pp. 419-424 . hdl:10013/epic.14203 |
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1776198866775834624 |