Assesment of Climate Change Effect on Temperature and Precipitation Based on Fourth and Fifth IPCC reports (Case study: Isfahan Province)

Climate change represents changes in the climate within the earth's atmosphere and its consequences in different parts of the planet. Changes in temperature and rainfall patterns have a great influence on the quantity and quality of water resources, especially in arid regions such as Iran, and consequences of this change on water resources are undeniable. This effect is reported to be on general circulation of the atmosphere, temperature, and precipitation. General atmospheric circulation models are the basis of all studies on climate change phenomena (Su et al., 2016). Because of the large network of these models and the low spatial resolution, some microscopic phenomena in general atmospheres cannot provide an accurate approximation of the climate conditions of the area; therefore, their output should be left to meteorological station’s micro-scale (Perkins et al., 2007).