Evaluation of the Effect of Artificial Precipitation Enhancement over Eastern Hexi Corridor |
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| Institution: | Key Laboratory of Arid Climatic Change and Reducing Disaster of Gansu Province,Institute of Arid Meteorology, CMA, Lanzhou 730020
Wuwei Meteorological Bureau of Gansu Province, Wuwei 733000;Key Laboratory of Arid Climatic Change and Reducing Disaster of Gansu Province,Institute of Arid Meteorology, CMA, Lanzhou 730020;Wuwei Meteorological Bureau of Gansu Province, Wuwei 733000;Key Laboratory of Arid Climatic Change and Reducing Disaster of Gansu Province,Institute of Arid Meteorology, CMA, Lanzhou 730020 |
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| Abstract: | This paper employed the non-randomization experiments such as the sequential test, the regional control test, the double ratio analysis evaluation method, and the regional regression test to analyze the effects of the artificial precipitation enhancement operations, which were carried out over eastern Hexi Corridor from May to September during 1997-2004. It is discovered that, after the implementation of the arti cial precipitation enhancement operations, the rainfall amount increased by 161.5 mm averagely in 8 yr,that is,an average relative precipitation enhancement ratio equals 43%.This indicates that the effects of artificial precipitation
enhancement operations over eastern Hexi Corridor are obvious, thus carrying out these operations is feasible.The artificial precipitation enhancement opens a new way for eastern Hexi Corridor to exploit and utilize the air water resources, to ameliorate the ecological environment, and to increase the water store in reservoirs. |
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| Keywords: | eastern Hexi Corridor artificial precipitation enhancement (APE) effect evaluation |
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