摘要
Betts对流调整方案采用的是垂直温湿场向观测的准平衡热力结构松驰的方法。本文在一个考虑了台风初值化的移动套网格台风数值模式中，对Betts方案进行了初步试验。结果表明：Betts方案能较好的预报出台风移动的路径和降水过程，并在台风路径、降水落区预报以及对流增温的垂直分布等方面都略优于Kuo方案的预报结果。
Betts convective parameterization scheme is tested in a movable oneway nested mesh typhoon model with the typhoon initialization. The convective adjustment scheme adjusts the local temperature and moisture structures towards the observed quasl-equilibrium thermodynamic state and includes nonprecipitating shallow convection as well as deep convection.The numerical experiment is performed and results show that the convective scheme is capable of better simulating the typhoon track and precipitation, and it is better than that of Kuo scheme in typhoon track and precipitation area and convective heating profile.
出处
《气象科学》
CSCD
北大核心
1999年第4期335-342,共8页
Journal of the Meteorological Sciences
关键词
对流参数
Betts对流调整
台风
数值模式
Convective parameterization
Betts convective adjustment
Comparison experiment
