An Elementary Analysis of Water Vapour Resources over Shandong Province
山东省空中水资源的初步分析

Using daily sounding data and water resources data from 1997-1999, the spatial-temporal characteristics and the water balance relations of land-atmosphere system are analyzed. The results show that the water vapour resources over Shandong Province are affected by weather system and season evidently. The annual average water vapour content is 20.75 mm. The annual average net vapour import amounts is-440.91 mm, and 850 hPa is the mainly net vapour export layer. The net vapour import rate has strong area distribution characteristics. The annual vapour transpot amount is very great, but less 5 % of them can be translated into precipitation, and about 27.31 % of the rainfall can be translated into water resources, the water vapour resources over Shandong Province have great potentialities to be exploited. The objective inevitability of drought climate characteristic in Shandong Province are anaylzed in the view of atmosphere vapour bablance, the countermeasures of adding water resources are given.