Attenuation Correction of the KA Band Cloud Radar Reflectivity Factor based on Bin-by-bin Method
In order to solve the data distortion problems caused by the echo attenuation of KA band cloud radar,the absorption and attenuation principle of the liquid water and water vapor in the transmission process of KA band micwave is analyzed,according to the radar meteorological equation and K-Z empirical relationship.Moreover,the improved method of bin-by-bin correction in the groups is used,and the attenuation correction experiment based on the data observed by KA band cloud radar at CUIT was carried out.Then it is compared with the correction attenuation effect of K-Z coefficient in the radar at present.The results show that,compared with the existing reflectivity factor attenuation correction results of the cloud radar,the method of bin-by-bin correction in the group has better correction effect for convective and stratiform cloud precipitation reflectivity factor.The correction effect becomes more obvious when the echo intensity is larger,and it can effectively reduce the distortion of the echo.
cloud radarattenuation correctionbin-by-bin correction in groupswater vapor correction
NETL
NSTL
万方数据
维普
