Study of the velocity field of surface currents in the South Atlantic Ocean derived from drifting buoy data
A total of 1442 data series of 996 drifters from public and research databases were analyzed in order to decompose and to estimate the velocity field of surface currents between 30º S and 50º S in the South Atlantic Ocean, with emphasis on the South Atlantic Current (SAC). The SAC is the southernmos...
Published in: | Ambiente e Agua - An Interdisciplinary Journal of Applied Science |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English Spanish Portuguese |
Published: |
Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi)
2011
|
Subjects: | |
Online Access: | https://doi.org/10.4136/ambi-agua.757 https://doaj.org/article/d0084bcba6944d72a4aa7f7c9eeed562 |
id |
fttriple:oai:gotriple.eu:oai:doaj.org/article:d0084bcba6944d72a4aa7f7c9eeed562 |
---|---|
record_format |
openpolar |
spelling |
fttriple:oai:gotriple.eu:oai:doaj.org/article:d0084bcba6944d72a4aa7f7c9eeed562 2023-05-15T13:46:29+02:00 Study of the velocity field of surface currents in the South Atlantic Ocean derived from drifting buoy data Eduardo Marone Ronald Buss Souza Regiane Moura 2011-12-01 https://doi.org/10.4136/ambi-agua.757 https://doaj.org/article/d0084bcba6944d72a4aa7f7c9eeed562 en es pt eng spa por Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi) doi:10.4136/ambi-agua.757 1980-993X https://doaj.org/article/d0084bcba6944d72a4aa7f7c9eeed562 undefined Revista Ambiente & Água, Vol 6, Iss 3, Pp 263-273 (2011) ocean circulation Lagrangian drifters current velocity field South Atlantic Current geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2011 fttriple https://doi.org/10.4136/ambi-agua.757 2023-01-22T17:51:07Z A total of 1442 data series of 996 drifters from public and research databases were analyzed in order to decompose and to estimate the velocity field of surface currents between 30º S and 50º S in the South Atlantic Ocean, with emphasis on the South Atlantic Current (SAC). The SAC is the southernmost limit of the South Atlantic Subtropical Gyre and presents strong interaction with other currents such as the Antarctic Circumpolar Current (ACC). The data were processed according to the Taylor's theory. The velocity field map for the study area as well as the mean values of the current intensity and associated standard deviation are presented and discussed. The highest estimated values of the average current velocity are located at the origin of the SAC and at the Malvinas Current (MC). The mean intensity of the SAC is approximately 30 cm.s-1 and the highest intensity values are observed at its origin decaying towards east. The SAC comprises a system containing a main axis and two branches, north and south. The N-SAC feeds the Benguela Current and the S-SAC leaks to the east towards the Indian Ocean. The flow pattern observed for the SAC presents a meandering characteristics and high variability in the regions where it interacts with other currents and mesoscale features. Article in Journal/Newspaper Antarc* Antarctic South Atlantic Ocean Unknown Antarctic Indian The Antarctic Ambiente e Agua - An Interdisciplinary Journal of Applied Science 6 3 263 273 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English Spanish Portuguese |
topic |
ocean circulation Lagrangian drifters current velocity field South Atlantic Current geo envir |
spellingShingle |
ocean circulation Lagrangian drifters current velocity field South Atlantic Current geo envir Eduardo Marone Ronald Buss Souza Regiane Moura Study of the velocity field of surface currents in the South Atlantic Ocean derived from drifting buoy data |
topic_facet |
ocean circulation Lagrangian drifters current velocity field South Atlantic Current geo envir |
description |
A total of 1442 data series of 996 drifters from public and research databases were analyzed in order to decompose and to estimate the velocity field of surface currents between 30º S and 50º S in the South Atlantic Ocean, with emphasis on the South Atlantic Current (SAC). The SAC is the southernmost limit of the South Atlantic Subtropical Gyre and presents strong interaction with other currents such as the Antarctic Circumpolar Current (ACC). The data were processed according to the Taylor's theory. The velocity field map for the study area as well as the mean values of the current intensity and associated standard deviation are presented and discussed. The highest estimated values of the average current velocity are located at the origin of the SAC and at the Malvinas Current (MC). The mean intensity of the SAC is approximately 30 cm.s-1 and the highest intensity values are observed at its origin decaying towards east. The SAC comprises a system containing a main axis and two branches, north and south. The N-SAC feeds the Benguela Current and the S-SAC leaks to the east towards the Indian Ocean. The flow pattern observed for the SAC presents a meandering characteristics and high variability in the regions where it interacts with other currents and mesoscale features. |
format |
Article in Journal/Newspaper |
author |
Eduardo Marone Ronald Buss Souza Regiane Moura |
author_facet |
Eduardo Marone Ronald Buss Souza Regiane Moura |
author_sort |
Eduardo Marone |
title |
Study of the velocity field of surface currents in the South Atlantic Ocean derived from drifting buoy data |
title_short |
Study of the velocity field of surface currents in the South Atlantic Ocean derived from drifting buoy data |
title_full |
Study of the velocity field of surface currents in the South Atlantic Ocean derived from drifting buoy data |
title_fullStr |
Study of the velocity field of surface currents in the South Atlantic Ocean derived from drifting buoy data |
title_full_unstemmed |
Study of the velocity field of surface currents in the South Atlantic Ocean derived from drifting buoy data |
title_sort |
study of the velocity field of surface currents in the south atlantic ocean derived from drifting buoy data |
publisher |
Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi) |
publishDate |
2011 |
url |
https://doi.org/10.4136/ambi-agua.757 https://doaj.org/article/d0084bcba6944d72a4aa7f7c9eeed562 |
geographic |
Antarctic Indian The Antarctic |
geographic_facet |
Antarctic Indian The Antarctic |
genre |
Antarc* Antarctic South Atlantic Ocean |
genre_facet |
Antarc* Antarctic South Atlantic Ocean |
op_source |
Revista Ambiente & Água, Vol 6, Iss 3, Pp 263-273 (2011) |
op_relation |
doi:10.4136/ambi-agua.757 1980-993X https://doaj.org/article/d0084bcba6944d72a4aa7f7c9eeed562 |
op_rights |
undefined |
op_doi |
https://doi.org/10.4136/ambi-agua.757 |
container_title |
Ambiente e Agua - An Interdisciplinary Journal of Applied Science |
container_volume |
6 |
container_issue |
3 |
container_start_page |
263 |
op_container_end_page |
273 |
_version_ |
1766243345720410112 |