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People's Daily Online>>China Society

China to fully utilize cloud water for artificial precipitation

By Liu Yi (People's Daily)

17:05, April 06, 2012

Edited and translated by People's Daily Online

The cloud water resources above China available for artificial rainfall can reach up to 280 billion tons per year, seven times that of the total storage capacity of the Three Gorges Reservoir's impoundment level (175-meter), said Zheng Guoguang, head of China Meteorological Administration.

Zheng said, China's average annual could water resource (including water vapor) is about 22 trillion tons, four times the average annual precipitation. But the precipitation efficiency is only about 28 percent (about 15 percent in northwest China). About 87 percent of cloud water runs off our overhead area.

At present, the volume of average artificial rainfall is only about 50 billion tons a year in China, accounting for less than 1 percent of China’s annual precipitation. The effect of artificial precipitation is 15 percent on average. According to present technical level, the artificial precipitation potential would be about 280 billion tons if we can fully develop the cloud water resource.

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