Multicriteria Decision Making Based on TOPSIS Method in Drought Zoning: A Case Study of Gilan Province

Drought as a complex natural hazard is best characterized by multiple climatological and hydrological parameters and the assessment of it is important for planning and managing water resources. So understanding the history of drought in the area is essential like investigating the effects of drought. In this research, by using TOPSIS method and nine climatic factors, droughts were identified and ranked in the province of Gilan. For validation, output data were compared with SIAP method and finally, the study area has been classified with proposed method.