INFLUENCE　OF　200　hPa　DIVERGENCE　CIRCULATION　ON　THE　TRACKS　OF　TROPICAL　CYCLONES  

作　　者：周学群 张翔 

出　　处：《Journal of Tropical Meteorology》1996年第1期26-34,共9页热带气象学报（英文版）

摘　　要：The characteristics of 200 hPa divergent wind and velocity potential have been analysed for four kinds of tropical cyclone tracks having impact on the SOuth China Sea. It is found that the difference of monsoon circulation in 200 hPa divergence wind field may affect the medium-range movement characteristics of tropical cyclone tracks. Corresponding to the west Pacific subtropical high,the orientation of 200 hPa secondary convergence line and its extension to the west may indicate the variability of track types.The direction of tropical cyclone movement is 2 longitudes west of and parallel to the 200 hPa secondary divergence line.

关 键 词：HPA secondary height DIVERGENT CIRCULATION TYPHOON track steering flow 

分 类 号：P444[天文地球—大气科学及气象学]