Prediction of the Impact of Climate Changes on Temperature and Precipitation in

The exceedingly fast trend of climatic changes in recent decades that are mainly caused by industrial activities along with population growth have taken necessitated prediction of changes for the future. The impact of changes in climate on temperature and precipitation in a sub-basin of Zayandehrud (Eskandari) for the 2020 decade is predicted in this research study. The Lars-WG model is used for downscaling Had-CM3 predictions into station scale. Results of running the models show an annual increase equal to 1 degree centigrade in temperature، while a 7. 2% decrease in precipitation will occur. These changes in temperature and precipitation will be more significant during the summer time. Thus، it is expected that we shall have to find ways to deal with serious water shortages in the next decade during this season. Keywords: climate change، Eskandari، Lars-WG، Downscaling، HadCM3 Model.