AN OPTIMUM MULTIPARAMETER MIXING ANALYSIS OF THE SHELF WATERS IN THE ROSS SEA
The analysis of the mixing processes involving water masses on the Ross Sea continental shelf is one of the goals of the CLIMA project (Climatic Long-term Interactions for the Mass balance in Antarctica). This paper uses extended Optimum MultiParameter analysis (OMP), which is applied to four datase...
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ftuninapoliparth:oai:ricerca.uniparthenope.it:11367/14823 2024-04-14T08:04:11+00:00 AN OPTIMUM MULTIPARAMETER MIXING ANALYSIS OF THE SHELF WATERS IN THE ROSS SEA BUDILLON, Giorgio RIVARO, Paola Pacciaroni, M. Cozzi, S. Catalano, G. IANNI C CANTONI Budillon, Giorgio Pacciaroni, M. Cozzi, S. Rivaro, Paola Catalano, G. Ianni, C, Cantoni 2003 http://hdl.handle.net/11367/14823 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000181701700013 volume:15, 1 firstpage:105 lastpage:118 numberofpages:14 journal:ANTARCTIC SCIENCE http://hdl.handle.net/11367/14823 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0037221262 Antarctic circulation continental shelf OMP water masses info:eu-repo/semantics/article 2003 ftuninapoliparth 2024-03-21T17:55:42Z The analysis of the mixing processes involving water masses on the Ross Sea continental shelf is one of the goals of the CLIMA project (Climatic Long-term Interactions for the Mass balance in Antarctica). This paper uses extended Optimum MultiParameter analysis (OMP), which is applied to four datasets collected during the cruises of 1994/95, 1995/96, 1997/98 and 2000/01 in the Ross Sea (Antarctica). Data include both hydrological, (temperature, salinity, and pressure; T, S, and P, respectively) and chemical parameters (O2, Si(OH)4, PO4, and NO3+NO2). The OMP analysis is based on the assumption that the mixing is a linear process which affects all parameters equally so that each sample shows physical/chemical properties that are the result of the mixing of some properly selected Source Water Types (SWTs). OMP thus evaluates the best set of contributions by all SWTs to each sample, and allows the spatial distribution and structure of the water masses in a basin to be evaluated. Ocean circulation may subsequently be inferred by means of a deeper analysis of the spreading of the water mass. In this study, the “real” Redfield ratios observed in the Ross Sea were used to correct the equations referring to the chemical parameters in accordance with the extended version of OMP. The solutions include some physically realistic constraints. The results allow a detailed description of the water mass distribution, validated through comparison with some “canonical” thermohaline characteristics of the Ross Sea hydrology. In particular our results verify the spreading of the HSSW over the entire continental shelf and emphasize the key role it plays in the ventilation of the deep waters outside the Ross Sea. In addition a description is given of the intrusion of relatively warm waters coming from the open ocean and flowing at some specific locations at the continental shelf break. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ross Sea Università degli Studi di Napoli "Parthenope": CINECA IRIS Antarctic Ross Sea |
institution |
Open Polar |
collection |
Università degli Studi di Napoli "Parthenope": CINECA IRIS |
op_collection_id |
ftuninapoliparth |
language |
English |
topic |
Antarctic circulation continental shelf OMP water masses |
spellingShingle |
Antarctic circulation continental shelf OMP water masses BUDILLON, Giorgio RIVARO, Paola Pacciaroni, M. Cozzi, S. Catalano, G. IANNI C CANTONI AN OPTIMUM MULTIPARAMETER MIXING ANALYSIS OF THE SHELF WATERS IN THE ROSS SEA |
topic_facet |
Antarctic circulation continental shelf OMP water masses |
description |
The analysis of the mixing processes involving water masses on the Ross Sea continental shelf is one of the goals of the CLIMA project (Climatic Long-term Interactions for the Mass balance in Antarctica). This paper uses extended Optimum MultiParameter analysis (OMP), which is applied to four datasets collected during the cruises of 1994/95, 1995/96, 1997/98 and 2000/01 in the Ross Sea (Antarctica). Data include both hydrological, (temperature, salinity, and pressure; T, S, and P, respectively) and chemical parameters (O2, Si(OH)4, PO4, and NO3+NO2). The OMP analysis is based on the assumption that the mixing is a linear process which affects all parameters equally so that each sample shows physical/chemical properties that are the result of the mixing of some properly selected Source Water Types (SWTs). OMP thus evaluates the best set of contributions by all SWTs to each sample, and allows the spatial distribution and structure of the water masses in a basin to be evaluated. Ocean circulation may subsequently be inferred by means of a deeper analysis of the spreading of the water mass. In this study, the “real” Redfield ratios observed in the Ross Sea were used to correct the equations referring to the chemical parameters in accordance with the extended version of OMP. The solutions include some physically realistic constraints. The results allow a detailed description of the water mass distribution, validated through comparison with some “canonical” thermohaline characteristics of the Ross Sea hydrology. In particular our results verify the spreading of the HSSW over the entire continental shelf and emphasize the key role it plays in the ventilation of the deep waters outside the Ross Sea. In addition a description is given of the intrusion of relatively warm waters coming from the open ocean and flowing at some specific locations at the continental shelf break. |
author2 |
Budillon, Giorgio Pacciaroni, M. Cozzi, S. Rivaro, Paola Catalano, G. Ianni, C, Cantoni |
format |
Article in Journal/Newspaper |
author |
BUDILLON, Giorgio RIVARO, Paola Pacciaroni, M. Cozzi, S. Catalano, G. IANNI C CANTONI |
author_facet |
BUDILLON, Giorgio RIVARO, Paola Pacciaroni, M. Cozzi, S. Catalano, G. IANNI C CANTONI |
author_sort |
BUDILLON, Giorgio |
title |
AN OPTIMUM MULTIPARAMETER MIXING ANALYSIS OF THE SHELF WATERS IN THE ROSS SEA |
title_short |
AN OPTIMUM MULTIPARAMETER MIXING ANALYSIS OF THE SHELF WATERS IN THE ROSS SEA |
title_full |
AN OPTIMUM MULTIPARAMETER MIXING ANALYSIS OF THE SHELF WATERS IN THE ROSS SEA |
title_fullStr |
AN OPTIMUM MULTIPARAMETER MIXING ANALYSIS OF THE SHELF WATERS IN THE ROSS SEA |
title_full_unstemmed |
AN OPTIMUM MULTIPARAMETER MIXING ANALYSIS OF THE SHELF WATERS IN THE ROSS SEA |
title_sort |
optimum multiparameter mixing analysis of the shelf waters in the ross sea |
publishDate |
2003 |
url |
http://hdl.handle.net/11367/14823 |
geographic |
Antarctic Ross Sea |
geographic_facet |
Antarctic Ross Sea |
genre |
Antarc* Antarctic Antarctica Ross Sea |
genre_facet |
Antarc* Antarctic Antarctica Ross Sea |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000181701700013 volume:15, 1 firstpage:105 lastpage:118 numberofpages:14 journal:ANTARCTIC SCIENCE http://hdl.handle.net/11367/14823 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0037221262 |
_version_ |
1796300599843618816 |