Evolution saisonnière des corrélations entre précipitations en Afrique guinéenne et températures de surface de la mer (1945–1994)

6533b828fe1ef96bd1288317

RESEARCH PRODUCT

Evolution saisonnière des corrélations entre précipitations en Afrique guinéenne et températures de surface de la mer (1945–1994)

Serge Janicot Bernard Fontaine

subject

Geography Ocean Engineering Forestry Ecology Evolution Behavior and Systematics West africa

description

Resume Les precipitations en Afrique de l'Ouest au sud de 10∘ N ont fortement baisse entre les decennies 1950 et 1980, pour tous les mois, excepte juillet et aout. Une analyse des correlations entre temperatures de surface de mer et precipitations sur la periode 1945–1994 montre que: 1) la grande saison seche (novembre a avril) ainsi que la premiere saison des pluies (mai-juin) sont associees a une structure globale de correlations, negatives/positives dans l'hemisphere Sud/Nord ; 2) la petite saison seche (juillet-aout) est associee a des correlations positives dans l'Atlantique Sud et equatorial ; 3) la deuxieme saison des pluies (septembre–octobre) est associee a des correlations positives dans l'Atlantique Nord.

year	journal	country	edition	language
1997-05-01	Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science

https://doi.org/10.1016/s1251-8050(97)82512-8

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