Variabilité pluviométrique en Bolivie lors des phases extrêmes de l'oscillation australe du Pacifique (1950-1993)
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1998
- ISIDORE Id: 10670/1.e002dc...
- 0303-7495
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Bulletin de l'Institut français d'études andines
Mots-clés
Multidisciplinarias (Ciencias Sociales)Sujets proches
Cordillera de los Andes Andean Mountain Range Anti (Mountains) Los Andes Andes Ranges Antis (Mountains) Andean Range Andes Range Andes Mountain Ranges Andes Mountains Andean Mountains The Andes Andes Mountain RangeCiter ce document
Josyane Ronchail, « Variabilité pluviométrique en Bolivie lors des phases extrêmes de l'oscillation australe du Pacifique (1950-1993) », Bulletin de l'Institut français d'études andines, ID : 10670/1.e002dc...
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Résumé
Rainfall variability in the Andes and in the lowlands of Bolivia is great during the two phases of the Pacific Southern Oscillation (SO). We show that very strong or weak seasonal rainfalls are independent of the SO Index, except in a few cases. In the Andes, negative rainfall anomalies occur during seven ENSO events above 8 (with a mean of -30%). In the lowlands, the only significant space-time consistent negative anomalies occur after 1970, during LNSO phases, in some southerly and central stations.
