Bottom water export from the western Ross Sea, 2007 through 2010
Bottom water export from the Ross Sea, February 2007 to January 2011, exhibits seasonal and interannual variability. Temperature minima coupled to salinity maxima in late austral summer, into the fall, indicate input from High-Salinity Shelf Water (HSSW). Secondary temperature minima lacking the hig...
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ftcolumbiauniv:oai:academiccommons.columbia.edu:10.7916/D8416WZ6 2023-05-15T18:07:31+02:00 Bottom water export from the western Ross Sea, 2007 through 2010 Gordon, Arnold L. Huber, Bruce A. Busecke, Julius J. M. 2015 https://doi.org/10.7916/D8416WZ6 English eng https://doi.org/10.7916/D8416WZ6 Ocean circulation Salinity--Measurement Chemical oceanography Articles 2015 ftcolumbiauniv https://doi.org/10.7916/D8416WZ6 2019-04-04T08:14:16Z Bottom water export from the Ross Sea, February 2007 to January 2011, exhibits seasonal and interannual variability. Temperature minima coupled to salinity maxima in late austral summer, into the fall, indicate input from High-Salinity Shelf Water (HSSW). Secondary temperature minima lacking the high-salinity trait, characteristic of Low-Salinity Shelf Water (LSSW), appear in the spring. Warmer bottom water similar to modified Circumpolar Deep Water (mCDW) is observed in winter and in early summer. The LSSW and mCDW may be drawn from the Drygalski Basin, as the HSSW pool retreats poleward from the shelf break in response to increased winter polar easterlies allowing these less dense overlying waters to spill into the deep ocean within the benthic layer. Bottom salinity decreased from 2007 to 2011 by 0.007 year−1 significantly higher than regional decadal trends, which we propose is a result of HSSW retreat induced by strengthening polar easterlies. Article in Journal/Newspaper Ross Sea Columbia University: Academic Commons Austral Drygalski ENVELOPE(-61.000,-61.000,-64.717,-64.717) Drygalski Basin ENVELOPE(166.500,166.500,-74.833,-74.833) Ross Sea |
institution |
Open Polar |
collection |
Columbia University: Academic Commons |
op_collection_id |
ftcolumbiauniv |
language |
English |
topic |
Ocean circulation Salinity--Measurement Chemical oceanography |
spellingShingle |
Ocean circulation Salinity--Measurement Chemical oceanography Gordon, Arnold L. Huber, Bruce A. Busecke, Julius J. M. Bottom water export from the western Ross Sea, 2007 through 2010 |
topic_facet |
Ocean circulation Salinity--Measurement Chemical oceanography |
description |
Bottom water export from the Ross Sea, February 2007 to January 2011, exhibits seasonal and interannual variability. Temperature minima coupled to salinity maxima in late austral summer, into the fall, indicate input from High-Salinity Shelf Water (HSSW). Secondary temperature minima lacking the high-salinity trait, characteristic of Low-Salinity Shelf Water (LSSW), appear in the spring. Warmer bottom water similar to modified Circumpolar Deep Water (mCDW) is observed in winter and in early summer. The LSSW and mCDW may be drawn from the Drygalski Basin, as the HSSW pool retreats poleward from the shelf break in response to increased winter polar easterlies allowing these less dense overlying waters to spill into the deep ocean within the benthic layer. Bottom salinity decreased from 2007 to 2011 by 0.007 year−1 significantly higher than regional decadal trends, which we propose is a result of HSSW retreat induced by strengthening polar easterlies. |
format |
Article in Journal/Newspaper |
author |
Gordon, Arnold L. Huber, Bruce A. Busecke, Julius J. M. |
author_facet |
Gordon, Arnold L. Huber, Bruce A. Busecke, Julius J. M. |
author_sort |
Gordon, Arnold L. |
title |
Bottom water export from the western Ross Sea, 2007 through 2010 |
title_short |
Bottom water export from the western Ross Sea, 2007 through 2010 |
title_full |
Bottom water export from the western Ross Sea, 2007 through 2010 |
title_fullStr |
Bottom water export from the western Ross Sea, 2007 through 2010 |
title_full_unstemmed |
Bottom water export from the western Ross Sea, 2007 through 2010 |
title_sort |
bottom water export from the western ross sea, 2007 through 2010 |
publishDate |
2015 |
url |
https://doi.org/10.7916/D8416WZ6 |
long_lat |
ENVELOPE(-61.000,-61.000,-64.717,-64.717) ENVELOPE(166.500,166.500,-74.833,-74.833) |
geographic |
Austral Drygalski Drygalski Basin Ross Sea |
geographic_facet |
Austral Drygalski Drygalski Basin Ross Sea |
genre |
Ross Sea |
genre_facet |
Ross Sea |
op_relation |
https://doi.org/10.7916/D8416WZ6 |
op_doi |
https://doi.org/10.7916/D8416WZ6 |
_version_ |
1766179674522648576 |