Geographia Technica, No. 2/2007, pp. 49 - 55

VARIABILITE SPATIALE ET TEMPORELLE

DES PRECIPITATIONS DU NORD-OUEST DE L’ALGERIE

H. Meddi, M. Meddi

ABSTRACT - Development projects in agriculture and water field require a study of the precipitation variability at different scales. Also, it is valuable in the climate change study. To detect any changes in the rainfall regime, we used a number of statistical tests on ten rainfall stations localized in the Northwest of Algeria with lengthy series of measures. The study showed a rupture in the 70's (reduction in rainfall) for the major part of studied stations. The interannual variability of rainfall increases when one approaches to the arid regions. The increased variability follows increasing in longitude and decreasing in latitude. The elevation mitigatesthis increase.

Keywords: variability, precipitation, regime, North West, Algeria

Meddi_VARIABILITE_PRECIPITATIONS_ALGERIE.pdf