Evaluating the performance of Atmosphere-Ocean Global Circulation Models (AOGCM) in simulating temperature variable in Ahwaz and Abadan stations

Abstract

Climate changes caused by global warming has presented challenges to human society. Studying the Changes of climate variables in the future decades by using output data's of Atmosphere-Ocean Global Circulation Models (AOGCM) is a way of perusing climate fluctuation in a region. In this study, the focus is on the AOGCM proceeds in simulating of variable temperature in Ahwaz and Abadan stations. Thermal simulations was done based on seven models according to the approval of the staff panel on climate change: HADCM3, CNRMCM3, CSIROMK3.0, GFDLCM2.0, INMCM3.0, IPSLCM4 and BCM2.0. Model performances were presented based on three criteria of correlation coefficient, Root Mean Square Error (RMSE) and Bias error. The compared results indicated that GFDLCM2.0 had commonly high performance on thermal simulations in both stations. On the other hand, IPSLCM4 and CNRMCM3 had the lowest performance (on thermal simulations) respectively in Ahwaz and Abadan stations