ANTICYCLONIC EDDIES IN THE ALASKA GYRE (AND CAPE HORN CURRENT?)

Sea surface height (SSH) fields, constructed from multiple altimeters, have revealed the annual generation of anticyclonic eddies around the Alaska Gyre. These eddies appear to develop annually along the eastern margin of the Gyre from instabilities in the poleward Alaska Current, after it reaches i...

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Autor: Ted Strub,P.
Tipo de documento: Artículo
Estado:Published version
Fecha de publicación:2004
País:Chile
Institución:Agencia Nacional de Investigación y Desarrollo
Repositorio:SciELO Chile
Lenguaje:Inglés
OAI Identifier:oai:scielo:S0717-65382004000300042
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000300042
Nivel de acceso:Acceso abierto
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author Ted Strub,P.
author_browse Ted Strub,P.
author_facet Ted Strub,P.
author_role author
collection SciELO Chile
description Sea surface height (SSH) fields, constructed from multiple altimeters, have revealed the annual generation of anticyclonic eddies around the Alaska Gyre. These eddies appear to develop annually along the eastern margin of the Gyre from instabilities in the poleward Alaska Current, after it reaches its seasonal maximum in transport in winter. After forming, the eddies propagate westward just offshore of the continental slope, where they draw shelf water containing nutrients and phytoplankton into the deep offshore waters, as seen by the SeaWiFS satellite ocean color sensor. In this manner, they enrich a region of the ocean that is dominated by downwelling-favorable wind forcing. Off Chile, the Cape Horn Current is the analog of the Alaska Current, flowing poleward and driven by cyclonic winds, associated with winter storms. In this presentation we will use satellite fields of SSH and Chlorophyll-a pigment concentrations to examine the relatively unstudied Cape Horn Current and compare its seasonal behavior to the Alaska Current. We will specifically look for anticyclonic eddies, similar to those in the Alaska Gyre
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institution Agencia Nacional de Investigación y Desarrollo
instname_str Agencia Nacional de Investigación y Desarrollo
language eng
network_acronym_str CL
network_name_str Chile
oai_identifier_str oai:scielo:S0717-65382004000300042
publishDate 2004
publishDateSort 2004
publisher Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
publisherStr Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
reponame_str SciELO Chile
spelling ANTICYCLONIC EDDIES IN THE ALASKA GYRE (AND CAPE HORN CURRENT?) Ted Strub,P. Sea surface height (SSH) fields, constructed from multiple altimeters, have revealed the annual generation of anticyclonic eddies around the Alaska Gyre. These eddies appear to develop annually along the eastern margin of the Gyre from instabilities in the poleward Alaska Current, after it reaches its seasonal maximum in transport in winter. After forming, the eddies propagate westward just offshore of the continental slope, where they draw shelf water containing nutrients and phytoplankton into the deep offshore waters, as seen by the SeaWiFS satellite ocean color sensor. In this manner, they enrich a region of the ocean that is dominated by downwelling-favorable wind forcing. Off Chile, the Cape Horn Current is the analog of the Alaska Current, flowing poleward and driven by cyclonic winds, associated with winter storms. In this presentation we will use satellite fields of SSH and Chlorophyll-a pigment concentrations to examine the relatively unstudied Cape Horn Current and compare its seasonal behavior to the Alaska Current. We will specifically look for anticyclonic eddies, similar to those in the Alaska Gyre Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000300042
spellingShingle ANTICYCLONIC EDDIES IN THE ALASKA GYRE (AND CAPE HORN CURRENT?)
Ted Strub,P.
status_str publishedVersion
title ANTICYCLONIC EDDIES IN THE ALASKA GYRE (AND CAPE HORN CURRENT?)
title_full ANTICYCLONIC EDDIES IN THE ALASKA GYRE (AND CAPE HORN CURRENT?)
title_fullStr ANTICYCLONIC EDDIES IN THE ALASKA GYRE (AND CAPE HORN CURRENT?)
title_full_unstemmed ANTICYCLONIC EDDIES IN THE ALASKA GYRE (AND CAPE HORN CURRENT?)
title_short ANTICYCLONIC EDDIES IN THE ALASKA GYRE (AND CAPE HORN CURRENT?)
title_sort ANTICYCLONIC EDDIES IN THE ALASKA GYRE (AND CAPE HORN CURRENT?)
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000300042