降雨衰减的预报模式

降雨衰减的预报模式 PREDICTION MODEL OF RAIN ATTENUATION 张祖文 first-author 李焕矩 张长清 本文利用气象雷达的测量结果考虑到雨的不均匀结构,得出了与频率无关的降雨率剖面模式。频率在10GHz以上通过地空路径的降雨总衰减可以很方便地用这个模式进行计算,文章还计算了12GHz、20GHz和30GHz,仰角分别为60°、45°及23°的三种倾斜路径总降雨衰减,并与我们自己的实验结果以及其他作者提供的实验结果进行比较,结果符合得很好。 Using the data from weather radar and considering the inhomogeneity of rain, we get a model of rain rate profile without depending on frequency, Total rain attenuation over earth-space path above 10 GHz can be calculated simply using this model, In this paper rain atteuuation for frequencies of 12GHz, 20GHz, 30GHz with elevations of 23°, 45°, 60° are obtained. The results both from calculation and from experiments made by ourselves and other authors agree very wello It shows that this model of rain rate profile can be applied generally. 1984-02-01 2021-04-01 2