日本数值预报产品在MM5模式中的应用  

Application of JMA Numerical Weather Prediction Product in MM5 Model

作　　者：张建海 张广周 

机构地区：[1]绍兴市气象局,浙江绍兴312000 [2]平顶山市气象局,河南平顶山467000

出　　处：《气象与环境科学》2007年第4期66-70,共5页Meteorological and Environmental Sciences

基　　金：浙江气象科技开放研究专项(Kf2006009)资助

摘　　要：针对目前中尺度数值模式MM5所用初始场局限于NCEP和T213的现状,提出了应用日本数值预报产品(JMA,下同)格点资料做初始场的想法,并对试验过程进行了介绍。对台风Ranan im(0414)登陆浙江的路径、移速、强度和降水等方面的数值模拟结果表明,应用了JMA资料的MM5模式在原有基础上提高了预报精度,尤其在台风登陆时间和登陆地点上提高更为明显。Focusing on the present situation of initial fields limited in NCEP and T213 data in using mesoseale model （MM5）, a new thought of using JMA numerical weather prediction product in MM5 model is detailed introduced in this paper. With JMA initial field, a numerical experiment is conducted on the landfall typhoon Rananim, verified against observations. The track, the moving speed, intensity change and precipitation distributions are well reproduced and the accuracy is certainly improved base on JMA data, particularly on the landfall time and landfall dot.

关 键 词：日本数值产品 格点资料 MM5 初始场 台风Rananim 

分 类 号：P456.7[天文地球—大气科学及气象学]