The Effect of Climate Change on Evaporation variations from the chah nimeh reservoirs of sistan
Evaporation is one of the wasteful methods of water resources in geographical areas and is of special importance in the study of water resources.
In the present study, databases including Chah Nimeh dam evaporation data and large-scale network data have been prepared. The SDSM model is used to simulate the evaporation of the coming decades under three scenarios: RCP2.6, RCP4.5 and RCP8.5. The basic modeling period is from 1983 to 2005 (23 years)
Comparison of evaporation estimates for the next two time periods and under different scenarios showed that for the time period 2100-2080 scenarios RCP2.6 and RCP8.5 estimated higher values for evaporation. Examination of inputs showed that air temperature, geopotential height and wind indices have the greatest impact on the evaporation of wells in Sistan.
The results of this study showed that the rate of evaporation in the period of increasing 2100-2080 will experience more than 300 mm per year. The greatest increase in evaporation will be in the warm period of the year.
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