1. GAME-II Monsoon System Modelling WG T. Satomura (Kyoto Univ.)

2. Activity in 2003 #1 The 2nd workshop on regional climate modeling for monsoon system –March 4-6, Yokohama, Japan –Organized with FRSGC –68 participants in total 13 invited, 20 from abroad –30 oral presentations & 5 posters

3. Recommendation of 2nd RCM WS 1.Publish the proceedings of WS 2.Prepare a special issue of JMSJ 3.Plan a inter-comparison experiment of model sensitivity to contribute regional climate forecasts of IPCC 4.Arrange a consortium to promote the usage of the ES

4. Activity in 2003 #2 Proceedings was published in Aug. 2003 as the GAME Publication No.39 Preparing a special issue of J. Metor. Soc. Japan –15 papers were submitted and in the peer review process –the issue will be published in next April

5. Acitivity Plan in 2004 Detail is not yet decided but… 3rd RCM WS will be held –Feb. 17-20, 2004 at Hawaii Univ. –the International Pacific Research Center (IPRC), the FRSGC, and the GISP are co-sponsoring –All presentations will be jointly presented at the International Asian Monsoon Symposium (IAMS) –Dead line of submission is 15 November

6. Special Topics of one day discussion in 3rd WS 1.modeling sub-daily variation of clouds and precipitation, and cloud-radiation feedback 2.water cycle and hydrological modeling for monsoon system 3.to facilitate the long-term collaboration and to initiate and coordinate the research initiatives in the community 4.to identify problems and discrepancies in RCMs and modeling approach, and to discuss future directions

8. 2nd RCM WS Photo

9. Diurnal variation of precipitation

10. GCM cannot simulate them

11. Radar observation MAY to JUL 1999 Windward side (western area) Mountainous region Lee side (eastern area) 05101520 (LT) 05101520 (LT) reg01 reg02 reg03 reg05 reg06 12 3456789 10 11 (%) 10 20 15 5 (%) 10 20 15 5 reg07 (%) 10 20 15 5 05101520 (LT) reg08 reg09 reg10 reg11 reg04

12. In October 1999 Windward side (eastern area) Mountainous region Lee side (western area) 05101520 (LT) 12 3456789 10 11 (%) 10 20 15 5 05101520 (LT) (%) 10 20 15 5 reg01 reg02 reg03 reg04 reg05 reg06 reg07 05101520 (LT) (%) 10 20 15 5 reg08 reg09 reg10 reg11

13. Numerical Model

17. Rainfall trends in Thailand (1951-1994) Kanae et al.(2001), J. of Hydromet. -T  Observed trends Simulated change  with deforestation condition by RAMS Both Obs. and Simulated change show remarkble decrease of rainfall in September.

18. “FOREST” Experiment “CURRENT” Integration Period: April 20 – September 30, 1998 Each ensemble has 5 members ECMWF for boundary & initials 2 ensembles with IPRC_RegCM

19. Comparison Changes in modeled Rainfall Changes in observed Rainfall