Seasonal variation in circulation and water mass distribution on the Ross Sea continental shelf
Changes in water mass distribution and horizontal circulation due toseasonal influences on the Ross Sea continental shelf are investigatedusing a circumpolar numerical model. An anticyclonic circulation cellthat extends across the open shelf and into the ice shelf cavity is formedin the model. The i...
Published in: | Antarctic Science |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
2003
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/4893/ https://epic.awi.de/id/eprint/4893/1/Kar2002a.pdf https://doi.org/10.1017/S0954102003001007 https://hdl.handle.net/10013/epic.15461 https://hdl.handle.net/10013/epic.15461.d001 |
id |
ftawi:oai:epic.awi.de:4893 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:4893 2023-09-05T13:15:28+02:00 Seasonal variation in circulation and water mass distribution on the Ross Sea continental shelf Assmann, K. Hellmer, Hartmut Beckmann, A. 2003 application/pdf https://epic.awi.de/id/eprint/4893/ https://epic.awi.de/id/eprint/4893/1/Kar2002a.pdf https://doi.org/10.1017/S0954102003001007 https://hdl.handle.net/10013/epic.15461 https://hdl.handle.net/10013/epic.15461.d001 unknown https://epic.awi.de/id/eprint/4893/1/Kar2002a.pdf https://hdl.handle.net/10013/epic.15461.d001 Assmann, K. , Hellmer, H. orcid:0000-0002-9357-9853 and Beckmann, A. (2003) Seasonal variation in circulation and water mass distribution on the Ross Sea continental shelf , Antarctic Science, 15 (1), pp. 3-11 . doi:10.1017/S0954102003001007 <https://doi.org/10.1017/S0954102003001007> , hdl:10013/epic.15461 EPIC3Antarctic Science, 15(1), pp. 3-11 Article isiRev 2003 ftawi https://doi.org/10.1017/S0954102003001007 2023-08-22T19:45:03Z Changes in water mass distribution and horizontal circulation due toseasonal influences on the Ross Sea continental shelf are investigatedusing a circumpolar numerical model. An anticyclonic circulation cellthat extends across the open shelf and into the ice shelf cavity is formedin the model. The increased east-west density gradient caused by the strongbrine release in the Ross Sea polynya in winter results in an intensificationof this anticyclonic cell from 1.5 Sv to 2.5 Sv. This supports the concept ofa thermohaline-driven horizontal circulation on the Ross Sea continental shelf. In addition to a temporal change in the circulation strength, the changes in the density structure lead to complex temporal and spatial variability in the circulation around Ross Island. Due to seasonal variation in circulation strength and water temperatures, the area averaged basal melt rate of 25 cm/a shows a bimodal seasonal cycle ranging from 20-28 cm/a, with maxima in March and August. Article in Journal/Newspaper Antarctic Science Ice Shelf Ross Island Ross Sea Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Ross Island Ross Sea Antarctic Science 15 1 3 11 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Changes in water mass distribution and horizontal circulation due toseasonal influences on the Ross Sea continental shelf are investigatedusing a circumpolar numerical model. An anticyclonic circulation cellthat extends across the open shelf and into the ice shelf cavity is formedin the model. The increased east-west density gradient caused by the strongbrine release in the Ross Sea polynya in winter results in an intensificationof this anticyclonic cell from 1.5 Sv to 2.5 Sv. This supports the concept ofa thermohaline-driven horizontal circulation on the Ross Sea continental shelf. In addition to a temporal change in the circulation strength, the changes in the density structure lead to complex temporal and spatial variability in the circulation around Ross Island. Due to seasonal variation in circulation strength and water temperatures, the area averaged basal melt rate of 25 cm/a shows a bimodal seasonal cycle ranging from 20-28 cm/a, with maxima in March and August. |
format |
Article in Journal/Newspaper |
author |
Assmann, K. Hellmer, Hartmut Beckmann, A. |
spellingShingle |
Assmann, K. Hellmer, Hartmut Beckmann, A. Seasonal variation in circulation and water mass distribution on the Ross Sea continental shelf |
author_facet |
Assmann, K. Hellmer, Hartmut Beckmann, A. |
author_sort |
Assmann, K. |
title |
Seasonal variation in circulation and water mass distribution on the Ross Sea continental shelf |
title_short |
Seasonal variation in circulation and water mass distribution on the Ross Sea continental shelf |
title_full |
Seasonal variation in circulation and water mass distribution on the Ross Sea continental shelf |
title_fullStr |
Seasonal variation in circulation and water mass distribution on the Ross Sea continental shelf |
title_full_unstemmed |
Seasonal variation in circulation and water mass distribution on the Ross Sea continental shelf |
title_sort |
seasonal variation in circulation and water mass distribution on the ross sea continental shelf |
publishDate |
2003 |
url |
https://epic.awi.de/id/eprint/4893/ https://epic.awi.de/id/eprint/4893/1/Kar2002a.pdf https://doi.org/10.1017/S0954102003001007 https://hdl.handle.net/10013/epic.15461 https://hdl.handle.net/10013/epic.15461.d001 |
geographic |
Ross Island Ross Sea |
geographic_facet |
Ross Island Ross Sea |
genre |
Antarctic Science Ice Shelf Ross Island Ross Sea |
genre_facet |
Antarctic Science Ice Shelf Ross Island Ross Sea |
op_source |
EPIC3Antarctic Science, 15(1), pp. 3-11 |
op_relation |
https://epic.awi.de/id/eprint/4893/1/Kar2002a.pdf https://hdl.handle.net/10013/epic.15461.d001 Assmann, K. , Hellmer, H. orcid:0000-0002-9357-9853 and Beckmann, A. (2003) Seasonal variation in circulation and water mass distribution on the Ross Sea continental shelf , Antarctic Science, 15 (1), pp. 3-11 . doi:10.1017/S0954102003001007 <https://doi.org/10.1017/S0954102003001007> , hdl:10013/epic.15461 |
op_doi |
https://doi.org/10.1017/S0954102003001007 |
container_title |
Antarctic Science |
container_volume |
15 |
container_issue |
1 |
container_start_page |
3 |
op_container_end_page |
11 |
_version_ |
1776197271105306624 |