Assessment of climatic drought characteristics of Larestan

Drought is considered as one of the undeniable climatic facts of Iran, and regardless of it, any forecasting and planning will fail. The analysis of drought and understanding its features can help planners to deal with the crises that occur. In the present study, Larestan, that is located in the Fars province, was selected as a case study, and to evaluate the characteristics of drought, precipitation data of nineteen stations in the period 1368 to 1392 were used. The purpose of using indicators SPI, CZI, ZSI and RDI was to identify the various features of drought. After data analysis, it was concluded that ZSI Shows the durability of drought’s periods longer than other indices. Also, SPI refers more deterioration of droughts. At the monthly scale, SPI Shows more severity than other indices, but at the annual scale, reaction of RDI is greater of other indices.