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Title: Has upwelling strengthened along worldwide coasts over 1982-2010?
Author: Varela, R.
Álvarez, I.
Santos, F.
deCastro, M.
Gómez-Gesteira, M.
Issue Date: 2015
Publisher: Nature Publishing Group
Abstract: Changes in coastal upwelling strength have been widely studied since 1990 when Bakun proposed that global warming can induce the intensification of upwelling in coastal areas. Whether present wind trends support this hypothesis remains controversial, as results of previous studies seem to depend on the study area, the length of the time series, the season, and even the database used. In this study, temporal and spatial trends in the coastal upwelling regime worldwide were investigated during upwelling seasons from 1982 to 2010 using a single wind database (Climate Forecast System Reanalysis) with high spatial resolution (0.3°). Of the major upwelling systems, increasing trends were only observed in the coastal areas of Benguela, Peru, Canary, and northern California. A tendency for an increase in upwelling-favourable winds was also identified along several less studied regions, such as the western Australian and southern Caribbean coasts.
Peer review: yes
DOI: 10.1038/srep10016
ISSN: 2045-2322
Appears in Collections:CESAM - Artigos
DFis - Artigos

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