List of Articles standardized precipitation index Open Access Article Abstract Page Full-Text 1 - Prediction of SPI drought index using support vector and multiple linear regressions Saeed Samadianfard اسماعیل اسدی Open Access Article Abstract Page Full-Text 2 - Application of the Nested Copula Functions for Analysis of Four variate of Meteorological Droughts (Case Study: West of Iran) zabihollah khani temeliyeh Hossien Rezaie Rasoul Mirabbasi