检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]南京气象学院电子信息科学系,南京210044
出 处:《南京气象学院学报》1999年第3期403-407,共5页Journal of Nanjing Institute of Meteorology
摘 要:首先给出具有 Rankine 模式的中尺度气旋的模拟多卜勒径向速度图,然后利用多卜勒雷达观测的径向速度与实际气流间的几何关系,提出一种确定近似轴对称的中尺度气旋中心及最大风速半径的方法。Doppler radial velocity photograph of mesocyclone is simulated with the Rankine Model and a method to determine mesocyclone center position and radius of maximum wind is proposed.In this method,the product of Doppler radar radial velocity ( r) and distance ( D ) between observed point and radar position is taken as a parameter.It can be proved that the mesocyclone center is the middle point of the line from the maximum to the minimum of the parameter ( r ·D ) and the radius of maximum wind is equal to half the distance between the maximum and the minimum ( r ·D ) according to the geometrical relationship of radial velocity and real air flow.The result from model experiment shows that the method is much better than Wood and Browns (1992) method for estimating typhoon center and radius of maximum wind.
分 类 号:P457.8[天文地球—大气科学及气象学] P412.16
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.63