Risk Assessment Methods Research of Drought Process in Tianshui Rrea

doi:10.11924/j.issn.1000-6850.2014-1483

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (35): 234-241.doi: 10.11924/j.issn.1000-6850.2014-1483

Special Issue: 农业气象

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Risk Assessment Methods Research of Drought Process in Tianshui Rrea

Received:2014-05-23 Revised:2014-05-23 Accepted:2014-07-18 Online:2015-03-18 Published:2015-03-18

Abstract

Abstract: In order to research the drought process variation of Tianshui Area and carry on quantitative assessment, this research is conducted based on the meteorological data of seven meteorological stations in Tianshui Area from 1965 to 2012. The authors adopted risk assessment, normal distribution and the relevanttheories, firstly determined drought process comprehensive evaluation index; then analyzed the drought process variation of Tianshui Area, and divided risk assessment levels according to the drought process comprehensive evaluation index sequence, and determined the evaluation index of drought return period; finally, evaluated drought process of Tianshui in 2013 by classification index and evaluation index of drought return period. The results showed that the research method could scientifically, timely and effectively do quantitative assessment of drought process of Tianshui. It has a certain reference value and significance to improve the effectiveness of disaster prevention and mitigation and the decision-making for meteorological services.

刘亮 and 郭旺文. Risk Assessment Methods Research of Drought Process in Tianshui Rrea[J]. Chinese Agricultural Science Bulletin, 2014, 30(35): 234-241.

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