Influence of sea ice cover and icebergs on circulation and water mass formation in a numerical circulation model of the Ross Sea, Antarctica
Satellite imagery shows that there was substantial variability in the sea ice extent in the Ross Sea during 2001-2003. Much of this variability is thought to be due to several large icebergs that moved through the area during that period. The effects of these changes in sea ice on circulation and wa...
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ftwilliammarycol:oai:scholarworks.wm.edu:vimsarticles-1272 2024-06-23T07:46:10+00:00 Influence of sea ice cover and icebergs on circulation and water mass formation in a numerical circulation model of the Ross Sea, Antarctica Dinniman, Michael S. Klinck, John M. Smith, Walker O., Jr. 2007-01-01T08:00:00Z application/pdf https://scholarworks.wm.edu/vimsarticles/273 doi: 10.1029/2006JC004036 https://scholarworks.wm.edu/context/vimsarticles/article/1272/viewcontent/2006JC004036.pdf unknown W&M ScholarWorks https://scholarworks.wm.edu/vimsarticles/273 doi: 10.1029/2006JC004036 https://scholarworks.wm.edu/context/vimsarticles/article/1272/viewcontent/2006JC004036.pdf VIMS Articles Biological Sciences Peer-Reviewed Articles Marine Biology text 2007 ftwilliammarycol https://doi.org/10.1029/2006JC004036 2024-06-05T03:30:42Z Satellite imagery shows that there was substantial variability in the sea ice extent in the Ross Sea during 2001-2003. Much of this variability is thought to be due to several large icebergs that moved through the area during that period. The effects of these changes in sea ice on circulation and water mass distributions are investigated with a numerical general circulation model. It would be difficult to simulate the highly variable sea ice from 2001 to 2003 with a dynamic sea ice model since much of the variability was due to the floating icebergs. Here, sea ice concentration is specified from satellite observations. To examine the effects of changes in sea ice due to iceberg C-19, simulations were performed using either climatological ice concentrations or the observed ice for that period. The heat balance around the Ross Sea Polynya (RSP) shows that the dominant term in the surface heat budget is the net exchange with the atmosphere, but advection of oceanic warm water is also important. The area average annual basal melt rate beneath the Ross Ice Shelf is reduced by 12% in the observed sea ice simulation. The observed sea ice simulation also creates more High-Salinity Shelf Water. Another simulation was performed with observed sea ice and a fixed iceberg representing B-15A. There is reduced advection of warm surface water during summer from the RSP into McMurdo Sound due to B-15A, but a much stronger reduction is due to the late opening of the RSP in early 2003 because of C-19. Text Antarc* Antarctica Ice Shelf McMurdo Sound Ross Ice Shelf Ross Sea Sea ice W&M ScholarWorks McMurdo Sound Ross Ice Shelf Ross Sea Journal of Geophysical Research 112 C11 |
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ftwilliammarycol |
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Biological Sciences Peer-Reviewed Articles Marine Biology |
spellingShingle |
Biological Sciences Peer-Reviewed Articles Marine Biology Dinniman, Michael S. Klinck, John M. Smith, Walker O., Jr. Influence of sea ice cover and icebergs on circulation and water mass formation in a numerical circulation model of the Ross Sea, Antarctica |
topic_facet |
Biological Sciences Peer-Reviewed Articles Marine Biology |
description |
Satellite imagery shows that there was substantial variability in the sea ice extent in the Ross Sea during 2001-2003. Much of this variability is thought to be due to several large icebergs that moved through the area during that period. The effects of these changes in sea ice on circulation and water mass distributions are investigated with a numerical general circulation model. It would be difficult to simulate the highly variable sea ice from 2001 to 2003 with a dynamic sea ice model since much of the variability was due to the floating icebergs. Here, sea ice concentration is specified from satellite observations. To examine the effects of changes in sea ice due to iceberg C-19, simulations were performed using either climatological ice concentrations or the observed ice for that period. The heat balance around the Ross Sea Polynya (RSP) shows that the dominant term in the surface heat budget is the net exchange with the atmosphere, but advection of oceanic warm water is also important. The area average annual basal melt rate beneath the Ross Ice Shelf is reduced by 12% in the observed sea ice simulation. The observed sea ice simulation also creates more High-Salinity Shelf Water. Another simulation was performed with observed sea ice and a fixed iceberg representing B-15A. There is reduced advection of warm surface water during summer from the RSP into McMurdo Sound due to B-15A, but a much stronger reduction is due to the late opening of the RSP in early 2003 because of C-19. |
format |
Text |
author |
Dinniman, Michael S. Klinck, John M. Smith, Walker O., Jr. |
author_facet |
Dinniman, Michael S. Klinck, John M. Smith, Walker O., Jr. |
author_sort |
Dinniman, Michael S. |
title |
Influence of sea ice cover and icebergs on circulation and water mass formation in a numerical circulation model of the Ross Sea, Antarctica |
title_short |
Influence of sea ice cover and icebergs on circulation and water mass formation in a numerical circulation model of the Ross Sea, Antarctica |
title_full |
Influence of sea ice cover and icebergs on circulation and water mass formation in a numerical circulation model of the Ross Sea, Antarctica |
title_fullStr |
Influence of sea ice cover and icebergs on circulation and water mass formation in a numerical circulation model of the Ross Sea, Antarctica |
title_full_unstemmed |
Influence of sea ice cover and icebergs on circulation and water mass formation in a numerical circulation model of the Ross Sea, Antarctica |
title_sort |
influence of sea ice cover and icebergs on circulation and water mass formation in a numerical circulation model of the ross sea, antarctica |
publisher |
W&M ScholarWorks |
publishDate |
2007 |
url |
https://scholarworks.wm.edu/vimsarticles/273 https://scholarworks.wm.edu/context/vimsarticles/article/1272/viewcontent/2006JC004036.pdf |
geographic |
McMurdo Sound Ross Ice Shelf Ross Sea |
geographic_facet |
McMurdo Sound Ross Ice Shelf Ross Sea |
genre |
Antarc* Antarctica Ice Shelf McMurdo Sound Ross Ice Shelf Ross Sea Sea ice |
genre_facet |
Antarc* Antarctica Ice Shelf McMurdo Sound Ross Ice Shelf Ross Sea Sea ice |
op_source |
VIMS Articles |
op_relation |
https://scholarworks.wm.edu/vimsarticles/273 doi: 10.1029/2006JC004036 https://scholarworks.wm.edu/context/vimsarticles/article/1272/viewcontent/2006JC004036.pdf |
op_doi |
https://doi.org/10.1029/2006JC004036 |
container_title |
Journal of Geophysical Research |
container_volume |
112 |
container_issue |
C11 |
_version_ |
1802644329751117824 |