The upwelling regime off the west Portuguese coast, 1941-2000

Lemos, Ricardo T. and Pires, Henrique O. (2004) The upwelling regime off the west Portuguese coast, 1941-2000. International Journal of Climatology, 24 4: 511-524. doi:10.1002/joc.1009

Author Lemos, Ricardo T.
Pires, Henrique O.
Title The upwelling regime off the west Portuguese coast, 1941-2000
Journal name International Journal of Climatology   Check publisher's open access policy
ISSN 0899-8418
Publication date 2004-03
Sub-type Article (original research)
DOI 10.1002/joc.1009
Volume 24
Issue 4
Start page 511
End page 524
Total pages 14
Place of publication Bognor Regis, West Sussex, United Kingdom
Publisher John Wiley & Sons
Language eng
Abstract The evolution of the upwelling regime off west Portugal between 1941 and 2000 was investigated. Monthly averages of the longshore (meridional) wind component at four coastal stations of the Institute for Meteorology were computed and subject to linear regression analysis. Several comparisons were made among stations until a final regression model was reached. The resulting residuals were checked for the presence of red noise, and pairwise correlation coefficients were estimated for residuals of different stations. To complement this study, monthly sea-surface temperature averages were computed for six regions off west Portugal and subject to a similar procedure. In both analyses, it was concluded that the Portuguese upwelling regime has weakened since the 1940s. The waning of the northerly, upwelling-favourable winds was significant throughout the traditional upwelling season (April–September). Sea-surface temperature showed a steady year-round increase from 1941 onwards, in both offshore (+0.002°C/year) and coastal (+0.010°C/year) regions.
Keyword Upwelling
Portugal wind
Trend analysis
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mathematics and Physics
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Citation counts: TR Web of Science Citation Count  Cited 69 times in Thomson Reuters Web of Science Article | Citations
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Created: Tue, 24 Jan 2012, 13:44:00 EST by Ricardo Silva Tavares De Lemos on behalf of Mathematics