شبيه سازي عددي بارش و دماي جنوب شرق ايران با استفاده از مدل اقليميregCM3

Simulation Rainfall and Temperature of South Eastern Part of Iran Using Regional Climate Model (RegCM)

In south eastern part of Iran, issue of climate forecast is a difficult task, because of geographical condition as to set in coastline Oman Sea and Indian Ocean, influence monsoon system on summer rainfall and topographical conditions such as coast, land and mountains. In order to issue climate forecasts, climate model should calibrate based on climate of the region. In this study for simulate rainfall and temperature RegCM3 regional climate model has been used. Four different schemes, Grell-FC, Grell-AS, Kuo and Emanuel has selected for simulation of rainfall and temperature region. Model has executed with spatial and temporal resolutions on 50 km and 150 second, respectively. In spite of the results have shown the errors of model at simulated summer rainfall of this region, but mean monthly temperature for summer has been simulated well. According to the result of this research, Emanuel scheme has minimum errors for simulated rainfall (35.7%) and mean monthly temperature (0.9%). Key Words: RegCM3, South Eastern part of Iran, Rainfall Monsoon, Convective Scheme, Observation Data.