عنوان مقاله [English]
Droughts are the most important natural disasters which despite the low human casualties, have large casualties in economics and social consequences. Droughts exist in 5 forms Climate, Hydrology , Agriculture, Economic and Social; which the first form has priorities among other forms of occurrence and termination. this presented research is considered the climate drought and evaluated the valid indicators of drought on the various stations in Fars province. among all existing stations, the stations which have the more perfect and valid statistics of aerology rather than others were selected. . For this purpose, twenty-five years of precipitation (1990-2014) of nine (9) stations were used with the condition of high jump and complete accuracy and proper geographical distribution at the provincial level. Standardized Precipitation Index (SPI) was calculated at 12, 24 and 48 months at selected stations; interpolation maps were prepared. Finally, in order to identify the pattern of drought and display it on the map, respectively, Moran's Spatial Autocorrelation and Hot Spots analysis were used.