Study Temperature and Precipitation Parameters under the Effect of Climate Change (Case study: Birjand Plain)

Climate change is one of the most important factors that will affect different parts of human life on earth and will be adverse effects on environmental resources, economic, social and especially water resources. Increasing concentration greenhouse gases in recent decades and increased temperature caused by it, has led to significant changes in meteorological elements. One of the strategies to mitigate climate change effects is to assess its effects on precipitation and temperature in each region. So, climate change effects on temperature and precipitation variables in Birjand Plain have been studied in this research using CanESM2 AR5 model under emissions scenarios 2.6, 4.5 and 8.5 RCPs. Due to the low resolution of general circulation models, SDSM downscaling model was used and climate changes in precipitation and temperature were simulated for future periods (2020-2049). Model simulation results indicate a rise in temperature in future period, so that maximum temperature rise (1.89°C) and the lowest rainfall (0.07 mm) was observed in June. Results can be used in planning water resources management and agricultural sector.