切向风速水平廓线对台风路径和强度的影响  

Effects of Tangential Wind Profile on Typhoon's Track and Intensity

作　　者：马红云[1] 马镜娴[2] 罗哲贤[1] 

机构地区：[1]南京气象学院资源环境与城乡规划系 [2]南京气象学院大气科学系

出　　处：《南京气象学院学报》2003年第6期780-787,共8页Journal of Nanjing Institute of Meteorology

基　　金：国家自然科学基金资助项目(40075012);国家科学技术部专项项目(2001DIA20026)

摘　　要：用一个β平面的准地转模式和一个高分辨率的f平面准地转模式,实施了6组试验,研究了初始台风切向风速水平廓线对台风路径和强度的影响。结果表明:切向风速峰值区狭窄,最大风速半径较小的廓线,与偏西北方向的路径以及强度维持或增强相对应;峰值区宽平,最大风速半径较大的廓线,与北折转向的路径以及强度衰减相对应。By means of a β-plane quasi-geostrophic model and a high resolution f-plane quasi-geostrophic model,six experiments are carried out to investigate the effects of initial tangential wind velocity profile on typhoon track and intensity.Results show that the profile with a narrow region of peak value of tangential wind and a smaller radius of maximum wind is favorable to a north-western track and the maintenance or enhancement of typhoon;on the contrary,a north-turning track and weakening of typhoon happen.

关 键 词：台风 切向风速廓线 风场 路径 强度 

分 类 号：P444[天文地球—大气科学及气象学]