Climatology and decadal variability of the Ross Sea shelf waters.
The World Ocean Database 2001 data located in the Ross Sea (named WOD01 and containing data in this region since 1928) are merged with recent data collected by the Italian expeditions (CLIMA dataset) in the period November 1994–February 2004 in the same area. From this extended dataset, austral summ...
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Online Access: | http://hdl.handle.net/11566/58618 https://doi.org/10.1080/19475721.2011.575179 |
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ftupmarcheiris:oai:iris.univpm.it:11566/58618 2024-04-14T08:04:27+00:00 Climatology and decadal variability of the Ross Sea shelf waters. RUSSO, ANIELLO A. Bergamasco S. Carniel GRIECO, LUISA M. Sclavo G. Spezie Russo, Aniello A., Bergamasco S., Carniel Grieco, Luisa M., Sclavo G., Spezie 2011 STAMPA http://hdl.handle.net/11566/58618 https://doi.org/10.1080/19475721.2011.575179 eng eng volume:2 firstpage:55 lastpage:77 numberofpages:23 journal:ADVANCES IN OCEANOGRAPHY AND LIMNOLOGY http://hdl.handle.net/11566/58618 doi:10.1080/19475721.2011.575179 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84879544429 Ross Sea oceanography Ross Sea water masse Ross Sea climatology info:eu-repo/semantics/article 2011 ftupmarcheiris https://doi.org/10.1080/19475721.2011.575179 2024-03-21T18:15:25Z The World Ocean Database 2001 data located in the Ross Sea (named WOD01 and containing data in this region since 1928) are merged with recent data collected by the Italian expeditions (CLIMA dataset) in the period November 1994–February 2004 in the same area. From this extended dataset, austral summer climatologies of the main Ross Sea subsurface, intermediate and bottom water masses: High Salinity Shelf Water (HSSW), Low Salinity Shelf Water (LSSW), Ice Shelf Water (ISW) and Modified Circumpolar Deep Water (MCDW) have been drawn. The comparison between the WOD01_1994 climatologies (a subset of the WOD01 dataset until April 1994) and the CLIMA ones for the period 1994/95–2003/04 showed significant changes occurred during the decade. The freshening of the Ross Sea shelf waters which occurred during the period 1960–2000, was confirmed by our analysis in all the main water masses, even though with a spatially varying intensity. Relevant variations were found for the MCDW masses, which appeared to reduce their presence and to deepen; this can be ascribed to the very limited freshening of the MCDW core, which allowed an increased density with respect to the surrounding waters. Variations in the MCDW properties and extension could have relevant consequences, e.g. a decreased Ross Ice Shelf basal melting or a reduced supply of nutrients, and may also be indicative of a reduced thermohaline circulation within the Ross Sea. Shelf Waters (SW) having neutral density n428.7Kgm3, which contribute to form the densest Antarctic Bottom Waters (AABW), showed a large volumetric decrease in the 1994/95–2003/04 decade, most likely as a consequence of the SW freshening. Article in Journal/Newspaper Antarc* Antarctic Ice Shelf Ross Ice Shelf Ross Sea Università Politecnica delle Marche: IRIS Antarctic Austral Ross Sea Ross Ice Shelf Advances in Oceanography and Limnology 2 1 55 77 |
institution |
Open Polar |
collection |
Università Politecnica delle Marche: IRIS |
op_collection_id |
ftupmarcheiris |
language |
English |
topic |
Ross Sea oceanography Ross Sea water masse Ross Sea climatology |
spellingShingle |
Ross Sea oceanography Ross Sea water masse Ross Sea climatology RUSSO, ANIELLO A. Bergamasco S. Carniel GRIECO, LUISA M. Sclavo G. Spezie Climatology and decadal variability of the Ross Sea shelf waters. |
topic_facet |
Ross Sea oceanography Ross Sea water masse Ross Sea climatology |
description |
The World Ocean Database 2001 data located in the Ross Sea (named WOD01 and containing data in this region since 1928) are merged with recent data collected by the Italian expeditions (CLIMA dataset) in the period November 1994–February 2004 in the same area. From this extended dataset, austral summer climatologies of the main Ross Sea subsurface, intermediate and bottom water masses: High Salinity Shelf Water (HSSW), Low Salinity Shelf Water (LSSW), Ice Shelf Water (ISW) and Modified Circumpolar Deep Water (MCDW) have been drawn. The comparison between the WOD01_1994 climatologies (a subset of the WOD01 dataset until April 1994) and the CLIMA ones for the period 1994/95–2003/04 showed significant changes occurred during the decade. The freshening of the Ross Sea shelf waters which occurred during the period 1960–2000, was confirmed by our analysis in all the main water masses, even though with a spatially varying intensity. Relevant variations were found for the MCDW masses, which appeared to reduce their presence and to deepen; this can be ascribed to the very limited freshening of the MCDW core, which allowed an increased density with respect to the surrounding waters. Variations in the MCDW properties and extension could have relevant consequences, e.g. a decreased Ross Ice Shelf basal melting or a reduced supply of nutrients, and may also be indicative of a reduced thermohaline circulation within the Ross Sea. Shelf Waters (SW) having neutral density n428.7Kgm3, which contribute to form the densest Antarctic Bottom Waters (AABW), showed a large volumetric decrease in the 1994/95–2003/04 decade, most likely as a consequence of the SW freshening. |
author2 |
Russo, Aniello A., Bergamasco S., Carniel Grieco, Luisa M., Sclavo G., Spezie |
format |
Article in Journal/Newspaper |
author |
RUSSO, ANIELLO A. Bergamasco S. Carniel GRIECO, LUISA M. Sclavo G. Spezie |
author_facet |
RUSSO, ANIELLO A. Bergamasco S. Carniel GRIECO, LUISA M. Sclavo G. Spezie |
author_sort |
RUSSO, ANIELLO |
title |
Climatology and decadal variability of the Ross Sea shelf waters. |
title_short |
Climatology and decadal variability of the Ross Sea shelf waters. |
title_full |
Climatology and decadal variability of the Ross Sea shelf waters. |
title_fullStr |
Climatology and decadal variability of the Ross Sea shelf waters. |
title_full_unstemmed |
Climatology and decadal variability of the Ross Sea shelf waters. |
title_sort |
climatology and decadal variability of the ross sea shelf waters. |
publishDate |
2011 |
url |
http://hdl.handle.net/11566/58618 https://doi.org/10.1080/19475721.2011.575179 |
geographic |
Antarctic Austral Ross Sea Ross Ice Shelf |
geographic_facet |
Antarctic Austral Ross Sea Ross Ice Shelf |
genre |
Antarc* Antarctic Ice Shelf Ross Ice Shelf Ross Sea |
genre_facet |
Antarc* Antarctic Ice Shelf Ross Ice Shelf Ross Sea |
op_relation |
volume:2 firstpage:55 lastpage:77 numberofpages:23 journal:ADVANCES IN OCEANOGRAPHY AND LIMNOLOGY http://hdl.handle.net/11566/58618 doi:10.1080/19475721.2011.575179 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84879544429 |
op_doi |
https://doi.org/10.1080/19475721.2011.575179 |
container_title |
Advances in Oceanography and Limnology |
container_volume |
2 |
container_issue |
1 |
container_start_page |
55 |
op_container_end_page |
77 |
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1796300961916911616 |