The Scaling Technique in Palmer Drought Severity Index; Generalized Calibration and Modification

Ali Reza Soltani Tudeshki, Sefollah Amin Sichani, Saied Mohammad Jafar Nazemossadat, Mohammad Karamouz and Soheila Javanmard

Pakistan Journal of Biological Sciences 11 ( 5 ): 702 - 710 , 2008