The relationship between extreme precipitation and surface air temperature in Bangladesh.

Abstract

This study aims exploring the characteristics of extreme precipitation corresponding to surface air temperature in Bangladesh. Analysis for each seven division of Bangladesh has been accomplished separately using observation dataset. In the next step, calibration of historical extreme precipitation from GCM model MIROC simulation has been performed comparing with observation. Model simulated dataset is obtained from the scenario of RCP8.5 of MIROC version-5. Bias correction has been taken into consideration while using model output. Finally, model simulation is applied to analyze projection of future changes of extreme precipitation in the targeted region. Results show that there are fair agreement among observation, MIROC present and MIROC projection simulations. An increase in extreme precipitation intensity is found in six divisions among seven divisions in Bangladesh for MIROC future projection simulation.