The nepheloid bottom layer and the dynamics of the water masses at the shelf break of the western Ross Sea (Antarctica). .
In the austral summers of 2000/2001 and 2002/2003 the Italian CLIMA Project carried out two oceanographic cruises along the northwestern margin of the Ross Sea, where the Antarctic Bottom Water forms. Here there is an interaction between the water masses on the sea floor of the outer shelf and slope...
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Elsevier Science Limited:Oxford Fulfillment Center, PO Box 800, Kidlington Oxford OX5 1DX United Kingdom:011 44 1865 843000, 011 44 1865 843699, EMAIL: asianfo@elsevier.com, tcb@elsevier.co.UK, INTERNET: http://www.elsevier.com, http://www.elsevier.com/locate/shpsa/, Fax: 011 44 1865 843010
2009
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ftunivgenova:oai:iris.unige.it:11567/224121 2024-01-28T10:00:57+01:00 The nepheloid bottom layer and the dynamics of the water masses at the shelf break of the western Ross Sea (Antarctica). . CAPELLO, MARCO BUDILLON G CUTRONEO L TUCCI, SERGIO Capello, Marco Budillon, G Cutroneo, L Tucci, Sergio 2009 STAMPA http://hdl.handle.net/11567/224121 eng eng Elsevier Science Limited:Oxford Fulfillment Center, PO Box 800, Kidlington Oxford OX5 1DX United Kingdom:011 44 1865 843000, 011 44 1865 843699, EMAIL: asianfo@elsevier.com, tcb@elsevier.co.UK, INTERNET: http://www.elsevier.com, http://www.elsevier.com/locate/shpsa/, Fax: 011 44 1865 843010 volume:56, 13-14 firstpage:843 lastpage:858 numberofpages:16 journal:DEEP-SEA RESEARCH. PART 2. TOPICAL STUDIES IN OCEANOGRAPHY http://hdl.handle.net/11567/224121 info:eu-repo/semantics/article 2009 ftunivgenova 2024-01-03T17:47:06Z In the austral summers of 2000/2001 and 2002/2003 the Italian CLIMA Project carried out two oceanographic cruises along the northwestern margin of the Ross Sea, where the Antarctic Bottom Water forms. Here there is an interaction between the water masses on the sea floor of the outer shelf and slope with a consequent evolution of benthic nepheloid layers and an increase in total particulate matter. We observed three different situations: (a) the presence of triads (bottom structures characterized by a concomitant jump in turbidity, temperature, and salinity data) and high resuspension phenomena related to the presence of the Circumpolar DeepWater and its mixing with cold, salty shelf waters associated with gravity currents; (b) the absence of triads with high re-suspension, implying that when the gravity currents are no longer active the benthic nepheloid layer may persist until the suspended particles settle to the sea floor, suggesting that the turbidity data can be used to study recent gravity current events; and (c) the absence of turbidity and sediment re-suspension phenomena supports the theory that a steady situation had been re-established and the current interaction no longer occurred or had finished sometime before. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ross Sea Università degli Studi di Genova: CINECA IRIS Antarctic Austral Ross Sea The Antarctic |
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Open Polar |
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Università degli Studi di Genova: CINECA IRIS |
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ftunivgenova |
language |
English |
description |
In the austral summers of 2000/2001 and 2002/2003 the Italian CLIMA Project carried out two oceanographic cruises along the northwestern margin of the Ross Sea, where the Antarctic Bottom Water forms. Here there is an interaction between the water masses on the sea floor of the outer shelf and slope with a consequent evolution of benthic nepheloid layers and an increase in total particulate matter. We observed three different situations: (a) the presence of triads (bottom structures characterized by a concomitant jump in turbidity, temperature, and salinity data) and high resuspension phenomena related to the presence of the Circumpolar DeepWater and its mixing with cold, salty shelf waters associated with gravity currents; (b) the absence of triads with high re-suspension, implying that when the gravity currents are no longer active the benthic nepheloid layer may persist until the suspended particles settle to the sea floor, suggesting that the turbidity data can be used to study recent gravity current events; and (c) the absence of turbidity and sediment re-suspension phenomena supports the theory that a steady situation had been re-established and the current interaction no longer occurred or had finished sometime before. |
author2 |
Capello, Marco Budillon, G Cutroneo, L Tucci, Sergio |
format |
Article in Journal/Newspaper |
author |
CAPELLO, MARCO BUDILLON G CUTRONEO L TUCCI, SERGIO |
spellingShingle |
CAPELLO, MARCO BUDILLON G CUTRONEO L TUCCI, SERGIO The nepheloid bottom layer and the dynamics of the water masses at the shelf break of the western Ross Sea (Antarctica). . |
author_facet |
CAPELLO, MARCO BUDILLON G CUTRONEO L TUCCI, SERGIO |
author_sort |
CAPELLO, MARCO |
title |
The nepheloid bottom layer and the dynamics of the water masses at the shelf break of the western Ross Sea (Antarctica). . |
title_short |
The nepheloid bottom layer and the dynamics of the water masses at the shelf break of the western Ross Sea (Antarctica). . |
title_full |
The nepheloid bottom layer and the dynamics of the water masses at the shelf break of the western Ross Sea (Antarctica). . |
title_fullStr |
The nepheloid bottom layer and the dynamics of the water masses at the shelf break of the western Ross Sea (Antarctica). . |
title_full_unstemmed |
The nepheloid bottom layer and the dynamics of the water masses at the shelf break of the western Ross Sea (Antarctica). . |
title_sort |
nepheloid bottom layer and the dynamics of the water masses at the shelf break of the western ross sea (antarctica). . |
publisher |
Elsevier Science Limited:Oxford Fulfillment Center, PO Box 800, Kidlington Oxford OX5 1DX United Kingdom:011 44 1865 843000, 011 44 1865 843699, EMAIL: asianfo@elsevier.com, tcb@elsevier.co.UK, INTERNET: http://www.elsevier.com, http://www.elsevier.com/locate/shpsa/, Fax: 011 44 1865 843010 |
publishDate |
2009 |
url |
http://hdl.handle.net/11567/224121 |
geographic |
Antarctic Austral Ross Sea The Antarctic |
geographic_facet |
Antarctic Austral Ross Sea The Antarctic |
genre |
Antarc* Antarctic Antarctica Ross Sea |
genre_facet |
Antarc* Antarctic Antarctica Ross Sea |
op_relation |
volume:56, 13-14 firstpage:843 lastpage:858 numberofpages:16 journal:DEEP-SEA RESEARCH. PART 2. TOPICAL STUDIES IN OCEANOGRAPHY http://hdl.handle.net/11567/224121 |
_version_ |
1789325596841476096 |