EDDY-INDUCED HEAT TRANSPORT IN THE SUBTROPICAL NORTH PACIFIC FROM ARGO, TMI AND ALTIMETRY MEASUREMENTS

EDDY-INDUCED HEAT TRANSPORT IN THE SUBTROPICAL NORTH PACIFIC FROM ARGO, TMI AND ALTIMETRY MEASUREMENTS

Basin-scale heat transport induced by mesoscale oceanic eddies is estimated by combining satellite-derived sea surface height and temperature data with Argo float temperature/salinity data. In the North Pacific subtropical gyre, warm (cold) temperature anomalies of mesoscale eddies are found to be c...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Qiu,Bo, Chen,Shuiming
Lenguaje:English
Publicado: Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción 2004
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000300033
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:scielo:S0717-65382004000300033
record_format dspace
spelling oai:scielo:S0717-653820040003000332005-05-16EDDY-INDUCED HEAT TRANSPORT IN THE SUBTROPICAL NORTH PACIFIC FROM ARGO, TMI AND ALTIMETRY MEASUREMENTSQiu,BoChen,ShuimingBasin-scale heat transport induced by mesoscale oceanic eddies is estimated by combining satellite-derived sea surface height and temperature data with Argo float temperature/salinity data. In the North Pacific subtropical gyre, warm (cold) temperature anomalies of mesoscale eddies are found to be consistently located to the west of high (low) SSH anomalies. The phase misalignment between the temperature and velocity anomalies, however, is largely confined to the seasonal thermocline, causing most of the eddy-induced heat transport to be carried in the surface 200 m layer. By establishing a statistical relationship between the surface and depth-integrated values of the eddy heat transport, the basin-scale eddy heat transport is derived from the concurrent satellite SSH/SST data of the past 6 yrs. In the Kuroshio Extension region, the meandering zonal jet is found to generate oppositely signed eddy heat fluxes. As a result,the zonally integrated poleward heat transport associated with the Kuroshio Extension is at a level of O (0.1 pW), smaller than the previous estimates based on turbulent closure schemes. Large poleward eddy heat transport is also found in the subtropical North Pacific along a SW-NE tilting band between Taiwan and theMidway Islands. This band corresponds to the region of the Subtropical Front and it is argued that the relevant temperature field for identifying this band in the turbulent closure scheme models should be that averaged over the seasonal thermoclineinfo:eu-repo/semantics/openAccessFacultad de Ciencias Naturales y Oceanográficas, Universidad de ConcepciónGayana (Concepción) v.68 n.2 suppl.TIIProc 20042004-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000300033en10.4067/S0717-65382004000300033
institution Scielo Chile
collection Scielo Chile
language English
description Basin-scale heat transport induced by mesoscale oceanic eddies is estimated by combining satellite-derived sea surface height and temperature data with Argo float temperature/salinity data. In the North Pacific subtropical gyre, warm (cold) temperature anomalies of mesoscale eddies are found to be consistently located to the west of high (low) SSH anomalies. The phase misalignment between the temperature and velocity anomalies, however, is largely confined to the seasonal thermocline, causing most of the eddy-induced heat transport to be carried in the surface 200 m layer. By establishing a statistical relationship between the surface and depth-integrated values of the eddy heat transport, the basin-scale eddy heat transport is derived from the concurrent satellite SSH/SST data of the past 6 yrs. In the Kuroshio Extension region, the meandering zonal jet is found to generate oppositely signed eddy heat fluxes. As a result,the zonally integrated poleward heat transport associated with the Kuroshio Extension is at a level of O (0.1 pW), smaller than the previous estimates based on turbulent closure schemes. Large poleward eddy heat transport is also found in the subtropical North Pacific along a SW-NE tilting band between Taiwan and theMidway Islands. This band corresponds to the region of the Subtropical Front and it is argued that the relevant temperature field for identifying this band in the turbulent closure scheme models should be that averaged over the seasonal thermocline
author Qiu,Bo
Chen,Shuiming
spellingShingle Qiu,Bo
Chen,Shuiming
EDDY-INDUCED HEAT TRANSPORT IN THE SUBTROPICAL NORTH PACIFIC FROM ARGO, TMI AND ALTIMETRY MEASUREMENTS
author_facet Qiu,Bo
Chen,Shuiming
author_sort Qiu,Bo
title EDDY-INDUCED HEAT TRANSPORT IN THE SUBTROPICAL NORTH PACIFIC FROM ARGO, TMI AND ALTIMETRY MEASUREMENTS
title_short EDDY-INDUCED HEAT TRANSPORT IN THE SUBTROPICAL NORTH PACIFIC FROM ARGO, TMI AND ALTIMETRY MEASUREMENTS
title_full EDDY-INDUCED HEAT TRANSPORT IN THE SUBTROPICAL NORTH PACIFIC FROM ARGO, TMI AND ALTIMETRY MEASUREMENTS
title_fullStr EDDY-INDUCED HEAT TRANSPORT IN THE SUBTROPICAL NORTH PACIFIC FROM ARGO, TMI AND ALTIMETRY MEASUREMENTS
title_full_unstemmed EDDY-INDUCED HEAT TRANSPORT IN THE SUBTROPICAL NORTH PACIFIC FROM ARGO, TMI AND ALTIMETRY MEASUREMENTS
title_sort eddy-induced heat transport in the subtropical north pacific from argo, tmi and altimetry measurements
publisher Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
publishDate 2004
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000300033
work_keys_str_mv AT qiubo eddyinducedheattransportinthesubtropicalnorthpacificfromargotmiandaltimetrymeasurements
AT chenshuiming eddyinducedheattransportinthesubtropicalnorthpacificfromargotmiandaltimetrymeasurements
_version_ 1718442080738476032

Ejemplares similares