A Dual-scheme approach of cumulus parameterization for simulating the Asian summer monsoon

The objective of this study is to introduce a novel approach of applying cumulus parameterization schemes (CPSs) in regional climate models. In this approach, two CPSs are running at alternate time steps during time integration. The two common CPSs of Emanuel and Anthes-Kuo have been examined. The results presented suggest that this dual-scheme approach may enhance the performance of the model in simulating the Asian summer monsoon over East Asia, in comparison with the corresponding results by using any single CPS. This empirical study suggests that the dual-scheme approach can be considered as a potential alternative to the common ensemble approaches in short-term climate simulation or prediction. Copyright (C) 2009 Royal Meteorological Society