Review Article

Trends and Variability in Precipitable Water Vapor throughout North China from 1979 to 2015

Figure 4

Monthly mean ERA-interim PWV throughout North China in (a–c) January, February, and March; (d–f) April, May, and June; (g–i) July, August, and September; and (j–l) October, November, and December from 1979 to 2015.