The Memo of the First Meeting for BMB-NCAR Project

Time: 10:30~11:30 am, July 1, 2005

Participants: Dir. Kuo, Dr. Huang, Dr. Guo, Shui-Yong Fan

Topic: Discuss the work arrangement for Shui-Yong Fan in NCAR

Note taker: Shui-Yong Fan

Main contents: Dir. Kuo gave a brief salutatory firstly, and emphasized that BMB should provide high quality of analysis to support other countries’ forecast model with the B08FDP, which needs WRF running maturely in BMB. At the same time, the results of WRF model forecast with the high resolution should be provided to forecasters as reference with the B08RDP, so the work of Shui-Yong Fan in NCAR is important. Combining the both sides demand of the Beijing Olympics project and the cooperation item of BMB and NCAR, and considering arrangement of time and human resource, everyone discussed the six month work arrangement for Shui-Yong Fan in NCAR. Results are as follows:

1, To check to find out what background error problem exist in the current MM5 3DVAR system of BMB as soon as possible. Shui-Yong Fan will demonstrate analytical results of background error . Dr. Guo, Dr. Huang and Shui-Yong Fan will discuss these results together.

2, On the foundation of the existing MM5 3DVAR operational system of BMB, to replace MM5’s 3DVAR system with WRF’s 3DVAR system to test firstly, carrying on one or two case studies; then making a long-term calculation and verification. Shui-Yong Fan should be familiar with WRF 3DVAR system and IBM HPC as soon as possible, and adjust the model which combines MM5 with WRF3DVAR on the IBM machine to make a case study. According to the calculation resource, a long-term calculation can be processing in the IBM machine of NCAR or be sent back BMB. The latter work should need to cooperate with Ji-Qin Zhong. It hopes that this work can improve the forecast performance of BMB’s operational system fast and availably.

Note: To try to finish the above work in July. (Dr. Guo will take a holiday in August.)

3, Shui-Yong Fan will build up a WRF 3DVAR system based on the discussed WRF model set, make case studies with local data of Beijing, analyze results with Dr. Huang and Dr. Guo together, and modify the setup and configuration of the model according to analytical results.

4, Shui-Yong Fan will make use of the WRF 3DVAR system to calculate with local data of Beijing, accumulate model forecast fields for the needs of the renewal of background error, and renew background error to compute and analyze again. The analysis of the district of 3km resolution is a new work. Therefore, so it hopes that having breakthrough in this aspect.