Abstract
In this study the mean global annual precipitable water is analyzed for the period of 1984 to 2014. For this purpose the data extracted from the reanalyses of NCEP/NCAR was used and presented in the form of a table. The spacial distribution of the tendency of precipitable water also was presented. Mann-Kendall and student t significant tests were applied for the tendency of global series. The mean value of precipitable water for the period is of 24 mm corresponding to the volume estimated for the entire global atmosphere of about 12 x 1012 m3. The results indicate significant tendencies of 0.026, 0.013 and 0.019 mm/year for the northern hemisphere, southern hemisphere and the entire globe, respectively. Specific areas of the globe show positive tendencies of 0.09 mm/year and the others show negative tendencies of the order of −0.09 mm/year demonstrating a non-homogeneous global tendency.
Keywords:
precipitable water; reanalysis NCEP/NCAR; climate trend
