Fig. 2From: Spatiotemporal characteristics of GNSS-derived precipitable water vapor during heavy rainfall events in Guilin, ChinaZTDs from GNSS observations and IGS center at stations BJFS and TWTF from June to July 2017. a ZTD time series for BJFS and b for TWTF, c correlation plot between IGS-ZTD and GNSS-ZTD for BJFS and d for TWTFBack to article page