Physics
Scientific paper
Oct 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998georl..25.3855p&link_type=abstract
Geophysical Research Letters, Volume 25, Issue 20, p. 3855-3858
Physics
5
Oceanography: Physical: El Nino, Hydrology: Precipitation, Hydrology: Drought, Hydrology: Floods
Scientific paper
A remarkable correlation is found between the total annual rainfall at Ensenada and the annual signal of the Southern Oscillation Index by suitably averaging their corresponding monthly series and dephasing the indices by four months. The result confirms the suspected dominant influence of El Niño-Southern Oscillation (ENSO) in the interannual weather fluctuations of mid-latitude mediterranean climates and shows that their strongest relationship lies close to the annual signal. Since a particularly strong El Niño developed in the Pacific, rainfall in the Ensenada to San Diego area has exceeded twice its long term average during the 1997-98 season. Similarly, as this event fades out, the 1998-99 rain season should be slightly below normal, i.e., rainfall should be somewhat below half that of the previous year.
Badan Antoine
Pavia Edgar G.
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