Application of BeiDou Navigation System in the numerical weather model
The meteorology is one of the earliest important fields to apply the BDS in.An unprecedented pattern has gradually formed for the comprehensive application of BDS to meteorology with the development of BDS.The construction and application of meteorological industry systems based on BDS ground-based augmentation systems can effectively improve the meteorological observation capabilities of GNSS in China,and also reduce the dependence of current GNSS applications on the GPS and GLONASS.This is of great significance for the development of meteorological application and the support for BDS industrialization.The current advances in the GNSS application in the numerical weather models are reviewed in this paper.The observation error is estimated for real-time inversion of precipitable water vapor(PWV)with BDS,based on the application of BDS in the numerical weather model.Through BDS-PWV assimilation application experiments in regional numerical weather model,the preliminary evaluation of the improvement effect is conducted for BDS-PWV assimilation application in the regional numerical weather model of the East China.