Multi-sensor satellite and in situ measurements of a warm core ocean eddy south of the Brazil–Malvinas Confluence region

Detalhes bibliográficos
Autor(a) principal: Souza, Ronald Buss de
Data de Publicação: 2006
Outros Autores: Mata, Mauricio Magalhães, Garcia, Carlos Alberto Eiras, Kampel, Milton, Oliveira, Eduardo Negri de, Lorenzzetti, João Antonio
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da FURG (RI FURG)
Texto Completo: http://repositorio.furg.br/handle/1/1917
Resumo: A warm core eddy was detected south of the Brazil–Malvinas (Falkland) Confluence (BMC) region in satellite images of the southwestern Atlantic Ocean in late 2002. The structure was also sampled by in situ instruments deployed by a ship in 2 days of November 2002. An analysis of satellite data was performed to account for the lifecycle, dimension, surface temperature, surface chlorophyll concentration, surface height anomaly and displacement of the eddy since it was detached from the Brazil Current in September 2002. Satellite data were derived from several sources such as the AMSR-E, MODIS and radar altimeter. The structure lasted 64 days at south of th Brazil–Malvinas Confluence region later being re-assimilated by the Brazil Current return flow. In situ data collected during 2 days showed that the eddy was about 150m deep, 5.5-C warmer and 1 practical salinity unit saltier than adjacent waters. The salt anomaly associated to the eddy was estimated as 1.37 1012kg while its heat content was 4.24 1018 J. These are typical estimates for eddies present at the BMC region. Sea surface temperature (SST), chlorophyll concentration, and sea surface height anomaly time series were analyzed for the eddy’s center along its trajectory path throughout its lifetime. Mean translational velocities for the eddy during its lifetime were computed from visual interpretation and by using an adaptation of the Maximum Cross-Correlation (MCC) method on AMSR-E SST images. The overall deviation between the two methods was 26%.This suggests that the MCC method has a potential to be applied in monitoring programs to automatically account for the translational velocities of eddies in the BMC region.
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spelling Multi-sensor satellite and in situ measurements of a warm core ocean eddy south of the Brazil–Malvinas Confluence regionWarm core eddyEddy activityBrazil–Malvinas ConfluenceMesoscale activitySouthwestern Atlantic OceanMulti-sensor observationsA warm core eddy was detected south of the Brazil–Malvinas (Falkland) Confluence (BMC) region in satellite images of the southwestern Atlantic Ocean in late 2002. The structure was also sampled by in situ instruments deployed by a ship in 2 days of November 2002. An analysis of satellite data was performed to account for the lifecycle, dimension, surface temperature, surface chlorophyll concentration, surface height anomaly and displacement of the eddy since it was detached from the Brazil Current in September 2002. Satellite data were derived from several sources such as the AMSR-E, MODIS and radar altimeter. The structure lasted 64 days at south of th Brazil–Malvinas Confluence region later being re-assimilated by the Brazil Current return flow. In situ data collected during 2 days showed that the eddy was about 150m deep, 5.5-C warmer and 1 practical salinity unit saltier than adjacent waters. The salt anomaly associated to the eddy was estimated as 1.37 1012kg while its heat content was 4.24 1018 J. These are typical estimates for eddies present at the BMC region. Sea surface temperature (SST), chlorophyll concentration, and sea surface height anomaly time series were analyzed for the eddy’s center along its trajectory path throughout its lifetime. Mean translational velocities for the eddy during its lifetime were computed from visual interpretation and by using an adaptation of the Maximum Cross-Correlation (MCC) method on AMSR-E SST images. The overall deviation between the two methods was 26%.This suggests that the MCC method has a potential to be applied in monitoring programs to automatically account for the translational velocities of eddies in the BMC region.2012-03-17T03:50:49Z2012-03-17T03:50:49Z2006info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfSOUZA, Ronald Buss de et al. Multi-Sensor satellite and in-situ measurements of a warm eddy south of the Brazil-Malvinas Confluence region. Remote Sensing of Environment, v. 100, n. 1, p. 52-66, 2006. Disponível em:<http://mtc-m12.sid.inpe.br/col/sid.inpe.br/iris%401912/2005/12.26.12.20/doc/http___www.sciencedirect.com_article.pdf>. Acesso em: 08 mar. 2012.http://repositorio.furg.br/handle/1/191710.1016/j.rse.2005.09.018engSouza, Ronald Buss deMata, Mauricio MagalhãesGarcia, Carlos Alberto EirasKampel, MiltonOliveira, Eduardo Negri deLorenzzetti, João Antonioinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2023-01-17T11:26:10Zoai:repositorio.furg.br:1/1917Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2023-01-17T11:26:10Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false
dc.title.none.fl_str_mv Multi-sensor satellite and in situ measurements of a warm core ocean eddy south of the Brazil–Malvinas Confluence region
title Multi-sensor satellite and in situ measurements of a warm core ocean eddy south of the Brazil–Malvinas Confluence region
spellingShingle Multi-sensor satellite and in situ measurements of a warm core ocean eddy south of the Brazil–Malvinas Confluence region
Souza, Ronald Buss de
Warm core eddy
Eddy activity
Brazil–Malvinas Confluence
Mesoscale activity
Southwestern Atlantic Ocean
Multi-sensor observations
title_short Multi-sensor satellite and in situ measurements of a warm core ocean eddy south of the Brazil–Malvinas Confluence region
title_full Multi-sensor satellite and in situ measurements of a warm core ocean eddy south of the Brazil–Malvinas Confluence region
title_fullStr Multi-sensor satellite and in situ measurements of a warm core ocean eddy south of the Brazil–Malvinas Confluence region
title_full_unstemmed Multi-sensor satellite and in situ measurements of a warm core ocean eddy south of the Brazil–Malvinas Confluence region
title_sort Multi-sensor satellite and in situ measurements of a warm core ocean eddy south of the Brazil–Malvinas Confluence region
author Souza, Ronald Buss de
author_facet Souza, Ronald Buss de
Mata, Mauricio Magalhães
Garcia, Carlos Alberto Eiras
Kampel, Milton
Oliveira, Eduardo Negri de
Lorenzzetti, João Antonio
author_role author
author2 Mata, Mauricio Magalhães
Garcia, Carlos Alberto Eiras
Kampel, Milton
Oliveira, Eduardo Negri de
Lorenzzetti, João Antonio
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Souza, Ronald Buss de
Mata, Mauricio Magalhães
Garcia, Carlos Alberto Eiras
Kampel, Milton
Oliveira, Eduardo Negri de
Lorenzzetti, João Antonio
dc.subject.por.fl_str_mv Warm core eddy
Eddy activity
Brazil–Malvinas Confluence
Mesoscale activity
Southwestern Atlantic Ocean
Multi-sensor observations
topic Warm core eddy
Eddy activity
Brazil–Malvinas Confluence
Mesoscale activity
Southwestern Atlantic Ocean
Multi-sensor observations
description A warm core eddy was detected south of the Brazil–Malvinas (Falkland) Confluence (BMC) region in satellite images of the southwestern Atlantic Ocean in late 2002. The structure was also sampled by in situ instruments deployed by a ship in 2 days of November 2002. An analysis of satellite data was performed to account for the lifecycle, dimension, surface temperature, surface chlorophyll concentration, surface height anomaly and displacement of the eddy since it was detached from the Brazil Current in September 2002. Satellite data were derived from several sources such as the AMSR-E, MODIS and radar altimeter. The structure lasted 64 days at south of th Brazil–Malvinas Confluence region later being re-assimilated by the Brazil Current return flow. In situ data collected during 2 days showed that the eddy was about 150m deep, 5.5-C warmer and 1 practical salinity unit saltier than adjacent waters. The salt anomaly associated to the eddy was estimated as 1.37 1012kg while its heat content was 4.24 1018 J. These are typical estimates for eddies present at the BMC region. Sea surface temperature (SST), chlorophyll concentration, and sea surface height anomaly time series were analyzed for the eddy’s center along its trajectory path throughout its lifetime. Mean translational velocities for the eddy during its lifetime were computed from visual interpretation and by using an adaptation of the Maximum Cross-Correlation (MCC) method on AMSR-E SST images. The overall deviation between the two methods was 26%.This suggests that the MCC method has a potential to be applied in monitoring programs to automatically account for the translational velocities of eddies in the BMC region.
publishDate 2006
dc.date.none.fl_str_mv 2006
2012-03-17T03:50:49Z
2012-03-17T03:50:49Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv SOUZA, Ronald Buss de et al. Multi-Sensor satellite and in-situ measurements of a warm eddy south of the Brazil-Malvinas Confluence region. Remote Sensing of Environment, v. 100, n. 1, p. 52-66, 2006. Disponível em:<http://mtc-m12.sid.inpe.br/col/sid.inpe.br/iris%401912/2005/12.26.12.20/doc/http___www.sciencedirect.com_article.pdf>. Acesso em: 08 mar. 2012.
http://repositorio.furg.br/handle/1/1917
10.1016/j.rse.2005.09.018
identifier_str_mv SOUZA, Ronald Buss de et al. Multi-Sensor satellite and in-situ measurements of a warm eddy south of the Brazil-Malvinas Confluence region. Remote Sensing of Environment, v. 100, n. 1, p. 52-66, 2006. Disponível em:<http://mtc-m12.sid.inpe.br/col/sid.inpe.br/iris%401912/2005/12.26.12.20/doc/http___www.sciencedirect.com_article.pdf>. Acesso em: 08 mar. 2012.
10.1016/j.rse.2005.09.018
url http://repositorio.furg.br/handle/1/1917
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da FURG (RI FURG)
instname:Universidade Federal do Rio Grande (FURG)
instacron:FURG
instname_str Universidade Federal do Rio Grande (FURG)
instacron_str FURG
institution FURG
reponame_str Repositório Institucional da FURG (RI FURG)
collection Repositório Institucional da FURG (RI FURG)
repository.name.fl_str_mv Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)
repository.mail.fl_str_mv
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