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| DOI： |
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| The Standards for Clarifying Drought Severity in Northwestern Liaoning Province |
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GE Yan, CHU Limei, ZHANG Gengyuan, YU Xiaowei， ZHANG Likun
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Water Resources and Hydropower Research Institute of Liaoning Province, Shenyang 110003, China； Water Conservancy Bureau of Shenyang City, Shenyang 110015, China； DandongSanwan Water and hydropower Development Limited Company, Dandong 110300, China
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| Abstract: |
| This paper analyzed and modified the commonly used drought index, from which we developed new standard for clarifying drought severity in northwestern Liaoning province based on available meteorological, hydrological, agriculture and social economical data. Four categories of droughts and nine typical representative drought indexes were used in the standard; we also introduced flood index z, percentage of runoff anomaly and percentage of reservoir storage anomaly. Suitability of the method was verified against the data measured in 2000, 2006 and 2007, three typical drought years. The calculated results were consistent with the actual situation in the northwest Liaoning Province. The results showed that the agreement was over 85%. The proposed standard provided a guidance for accurately identifying, analyzing and evaluating droughts. |
| Key words: standard drought severity； drought index； drought analysis； drought assessment； Northwestern Liaoning |
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