Meteorological element

Surface water vapor pressure/hPa

Air temperature/˚C

Relative humidity/%

00 hours GPS-PWV error is minimal

9.3

12.4

65.3

GPS-PWV error is the largest

16.2

18.2

77.9

GPS-PWV error is minimal

9.4

13.0

63.8

GPS-PWV error is the largest

13.6

16.0

72.2