大气科学进展(英文版)
大氣科學進展(英文版)
대기과학진전(영문판)
ADVANCES IN ATMOSPHERIC SCIENCES
2010年
1期
69-79
,共11页
胡邦辉%杨修群%范勇%fanyong
鬍邦輝%楊脩群%範勇%fanyong
호방휘%양수군%범용%fanyong
热带气旋运动%风速分布%计算%移动%最大风速半径%数值格式%内部结构%观测数据
熱帶氣鏇運動%風速分佈%計算%移動%最大風速半徑%數值格式%內部結構%觀測數據
열대기선운동%풍속분포%계산%이동%최대풍속반경%수치격식%내부결구%관측수거
tropical cyclone%maximum wind speed radius%wind velocity distribution
Based on gradient wind equations, including frictional force, and considering the effect of the movement of a tropical cyclone on wind speed, the Fujita Formula is improved and further simplified, and the numerical scheme for calculating the maximum wind speed radius and wind velocity distribution of a moving tropical cyclone is derived. In addition, the effect of frictional force on the internal structure of the tropical cyclone is discussed. By comparison with observational data, this numerical scheme demonstrates great advantages, i.e. it can not only describe the asymmetrical wind speed distribution of a tropical cyclone reasonably, but can also calculate the maximum wind speed in each direction within the typhoon domain much more accurately. Furthermore, the combination of calculated and analyzed wind speed distributions by the scheme is perfectly consistent with observations.