New Algorithms of Atmospheric Correction for The Altimeter Height Measurements
微波高度计测高的大气订正新算式

In order to obtain high-precision altimeter height measurements, the atmospheric path delay correction is required. In this study, the exact values of dry and wet path delay are calculable by using the radiosonde data in four selective stations (Yap, Guam, Guangzhou, and Shanghai). Based on these calculation results, the algorithms for both dry and wet path correction are obtained by the regrpesion method. The comparison of our algorithms with Saastamoinen and Lipes models shows that: (1)our wet correction algorithm is universal, at least applicable in the western Pacific region, (2)the dry correction algorithm has to be established individually for each geographic zone; and (3)the new algorithms give better correction results with smaller rms deviation than other models.