The ground-based GNSS meteorology is a new application of GNSS, which mainly researches how to compute the precipitable water vapor (PWV) by the delay in the zenith direction. And the transformation coefficient between precipitable water vapor and zenith wet delay is a function of weighted mean temperature. Computing the weighted mean temperature in the ground-based GNSS meteorology therefore becomes very important. Taking Xuzhou area as an example, the weighted average temperature model is established withthe sounding data, and is compared with other models. The results show that the localized model has higher precision and is more suitable for water vapor inversion.
Global Navigation Satellite SystemZenith DelayGround-based GPS Meteorology
NETL
NSTL
万方数据
维普
