Satellite observations of upwelling in the gulf of Guinea

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dc.contributor.author Wiafe, G.
dc.contributor.author Nyadjro, E.S.
dc.date.accessioned 2018-11-05T10:17:04Z
dc.date.available 2018-11-05T10:17:04Z
dc.date.issued 2015-05
dc.identifier.other Volume: 12 , Issue: 5 , pp 1066 - 1070
dc.identifier.other DOI: 10.1109/LGRS.2014.2379474
dc.identifier.uri http://ugspace.ug.edu.gh/handle/123456789/25254
dc.description.abstract The classical case of favorable winds driving coastal upwelling does not adequately account for the upwelling observed along the northwestern Gulf of Guinea (GoG) coast, which is the area of focus in this letter. Herein, we used mainly satellite-derived data to examine the dynamics of upwelling in the study area. Upwelling indexes are derived from sea surface temperature (SST) and wind influences. Low SST, which is a characteristic of upwelling, is observed mainly along the entire coastal region from July to September. The relative contributions of local wind forcing are quantified; the wind-stress-driven Ekman transport was more important than the wind-stress-curl-driven Ekman pumping in affecting changes in SST. They both however do not entirely explain the upwelling that is observed along the entire coast. It is shown that winds in the western equatorial Atlantic force eastward propagating upwelling Kelvin waves that lead to lowering of sea level and SST along the northwestern GoG coast. � 2014 IEEE. en_US
dc.language.iso en en_US
dc.publisher IEEE Geoscience and Remote Sensing Letters en_US
dc.subject Altimetry en_US
dc.subject Ekman transport en_US
dc.subject Gulf of Guinea en_US
dc.subject Kelvin waves en_US
dc.subject satellite data en_US
dc.subject sea surface temperature (SST) en_US
dc.subject upwelling; winds en_US
dc.title Satellite observations of upwelling in the gulf of Guinea en_US
dc.type Article en_US


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