IMPACT OF CLIMATE CHANGE ON WATER RESOURCES IN IRAN

This study investigates the impact of climate change on water resources in center of Iran . The upstream catchment of Kamarkhani station in the Emameh basin was the study area chosen herein. The historical trends of meteorological variables, such as mean daily temperature, mean daily precipitation on wet days. Monthly wet days. And the transition probabilities of daily precipitation occurrence in each month, at the Rahatabad meteorological station , near the catchments were detected using a non- parametric statistical test . The trends of these meteorological variables were then employed to generate runoff in future climate conditions using a continuous rainfall-runoff model. The analytical results indicate that the transition probabilities of daily precipitation occurrence significantly influence precipitation generation , and generated runoff for future climate conditions in center of Iran was found to rise during the wet season and decline during the dry season. Keywords: Climate change; Water resources; Rainfall-runoff model ; Transition probability ; Trend analysis; Data generation