STUDY OF THE CLIMATE CHANGES IMPACT ON THE SPATIO-TEMPORAL VARIABILITY OF PRECIPITATION IN THE EASTERN PART OF THE SAHARAN ATLAS; CASE OF THE BELEZMA, THE AURES AND NEMEMCHA, AND THEIR BORDERS. GEOMATICS AND GEOSTATISTICAL APPROACH Journal title: Analele Universitatii din Oradea, Seria Geografie Authors: IMEN Tahar Chaouch, MAHDI Kalla Subject(s):