Precipitable Water Vapor Retrieval and Analysis by Multiple Data Sources: Ground-Based GNSS, Radio Occultation, Radiosonde, Microwave Satellite, and NWP Reanalysis Data

Table 2

Precision statistic of retrieved PWV from the ATOVS product compared with radiosondes.

	Min bias (mm)	Max bias (mm)	Mean bias (mm)	RMSE (mm)
RS_PWV-Sat_PWV	0.003	12.068	−0.348	3.461