University of Tehran Press Journal of Ecohydrology 2423-6098 7 2 2020 06 21 Forecast Comparative of Rainfall and Temperature in Kerman County Using LARS-WG6 Models Forecast Comparative of Rainfall and Temperature in Kerman County Using LARS-WG6 Models 529 538 76587 10.22059/ije.2020.298577.1294 FA Meysam Jafary Godeneh MSc Watershed Science and Engineering, Faculty of Natural Resource, University of Tehran Ali Salajeghe Professor, Faculty of Natural Resource, University of Tehran Parsa Haghighi Msc Student of Nature Engineering, Faculty of New Sciences and Technologies, University of Tehran Journal Article 2020 02 05 Assessment of climate change in arid and semiarid areas where water crisis is taken it is a matter of special importance. Therefore, the purpose of this study was to investigate climate change forecasting in Kerman city using general atmospheric circulation models available in LARS-WG6 software (EC-EARTH, GFDL-CM, HadGEM2-ES, MIROC5 and MPI-ESM-MR) under scenarios RCP4.5 and RCP8.5 for the period (2020–2050) and estimate its maximum precipitation over the various return periods during the base period (1961–2010) and future (2020–2050) using the Gamble distribution. The results showed that all five models have the same response in increasing the minimum and maximum temperatures in the city so that the maximum increase in the minimum temperature in GFDL-CM, HadGEM2-ES, MIROC5 and MPI-ESM-MR models is the results were 3.56, 2.73, 2.33 and 2.30 degrees Celsius, respectively. Also, the maximum temperature in the RCP4.5 scenario in May, September, May, September and July, respectively, in EC-EARTH, GFDL-CM, HadGEM2-ES, MIROC5 and MPI-ESM-MR models, respectively, increased by 2.20, 2.82, 2.46, 1.98 and 2.38 °C, respectively. Precipitation decreased by 19.05% and 4.62% in EC-EARTH and MIROC5 models, respectively. The results show that maximum precipitation will occur with higher rainfall in all models except MPI-ESM-MR. Finally, it can be concluded that with increasing return period, the maximum amount of probable precipitation increased under RCP4.5 and RCP8.5 scenarios and was more severe under RCP8.5 scenario. Assessment of climate change in arid and semiarid areas where water crisis is taken it is a matter of special importance. Therefore, the purpose of this study was to investigate climate change forecasting in Kerman city using general atmospheric circulation models available in LARS-WG6 software (EC-EARTH, GFDL-CM, HadGEM2-ES, MIROC5 and MPI-ESM-MR) under scenarios RCP4.5 and RCP8.5 for the period (2020–2050) and estimate its maximum precipitation over the various return periods during the base period (1961–2010) and future (2020–2050) using the Gamble distribution. The results showed that all five models have the same response in increasing the minimum and maximum temperatures in the city so that the maximum increase in the minimum temperature in GFDL-CM, HadGEM2-ES, MIROC5 and MPI-ESM-MR models is the results were 3.56, 2.73, 2.33 and 2.30 degrees Celsius, respectively. Also, the maximum temperature in the RCP4.5 scenario in May, September, May, September and July, respectively, in EC-EARTH, GFDL-CM, HadGEM2-ES, MIROC5 and MPI-ESM-MR models, respectively, increased by 2.20, 2.82, 2.46, 1.98 and 2.38 °C, respectively. Precipitation decreased by 19.05% and 4.62% in EC-EARTH and MIROC5 models, respectively. The results show that maximum precipitation will occur with higher rainfall in all models except MPI-ESM-MR. Finally, it can be concluded that with increasing return period, the maximum amount of probable precipitation increased under RCP4.5 and RCP8.5 scenarios and was more severe under RCP8.5 scenario. https://ije.ut.ac.ir/article_76587_e816912fd7db7f9e62d19890b8a0bd16.pdf