We investigate the characteristics in the moist process of JMA-GSM by comparing with satellite observations and some other measurements. JMA-GSM is a model for operational weather forecasting. It is also used to simulate climate change.

For the first step, we have compared the cloud occurrence of JMA-GSM with that of CloudSAT. The comparison showed that the simulated cloud occurrence was larger than the retrieved in the upper troposphere and less in the middle troposphere. Additionally, it was shown that the simulated cloud top height was higher than the retrieved in the tropical region.

In our presentation, JMA-GSM will also be compared with the other satellite observations and some other measurements. We are going to discuss the characteristics in the moist process of JMA-GSM.

This study is funded by Japanese Ministry of Education, Culture, Sports, Science and Technology.