آینده نگری وضعیت رخدادهای حدی بارش و دما در جنوب و جنوب غرب ایران با استفاده از مجموع مدلهای CMIP6

The purpose of this research is to investigate the situation of extreme events of precipitation and temperature in Iran based on the 6th IPCC report. The data used in this research includes the average minimum and maximum daily temperature data of the CNRM-CM6-1 model from the set of CMIP6 models during the period of 2020-2060 under the ssp126 and ssp585 scenarios. In this research, after receiving the data of the mentioned model, the data was controlled quantitatively and qualitatively (length of appropriate statistical period, gap data and outlier data). Calculation of Iran's future temperature indices (13 threshold temperature and precipitation indices based on the recommendation of the CCL/CLIVAR expert group) using programming in the MATLAB environment and the trend of changes of each index was checked using the Mann-Kendall test.The results of the cold and hot temperature temperature indicators in general showed that the future cold temperature indicators of Iran will decrease and the warm temperature indicators of the future of Iran will increase. The country is significant. Among the warm indicators examined during the period of 2020-2060 under both ssp126 and ssp858 scenarios, the SU25, TXx and TNx indicators for the country level will be accompanied by an increasing and significant trend at the level of 95% and above, and among the cold indicators, the FD and ID indicators In a significant level of the country, they will face a decrease in incidences, and their decreasing trend is significant at the level of 95%.