نوع مقاله : مقاله پژوهشی
موضوعات
عنوان مقاله English
نویسندگان English
In this research, the effects of climate change on the distribution of precipitation and temperature in South Khorasan province were investigated. For this purpose, the output of 12 global climate models of IPCC's 6th report for the base period (1989-2100) for precipitation and temperature compared to observational data is weighted based on Kling-Gupta combined index (KGE) and based on the resulting ranks. CEM2 and HadGEM3-GC models respectively have the greatest ability in simulating temperature and precipitation in selected stations (Birjand, Qain, Ferdous, Nehbandan and Beshrurieh). In the following, using three scenarios SSP1-2.6, SSP2-4.5 and SSP5-8.5 and with the help of the simulator we will study the future climate change. The simulation results of the models showed that in future climatic conditions, annual temperature and precipitation will increase in all three SSP scenarios; So that the temperature will increase from 0.07 to 2.78 degrees Celsius and precipitation will increase by 1 to 81.8 percent compared to the base period. Also, the results of Kling-Gupta combined index indicate that the accuracy of the studied models is good in temperature simulation and poor in precipitation simulation.
کلیدواژهها English