| Applicability of drought indices in Shaanxi Province |
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| DOI：10.7606/j.issn.1000-7601.2010.02.01 |
| Key Words: Shaanxi Province drought index applicability |
| Author Name | Affiliation | | QIAO Li | Shaanxi Provincial Bureau of Meteorology, Xi'an, Shaanxi 710014, China | | DU Jiwen | Shaanxi Provincial Bureau of Meteorology, Xi'an, Shaanxi 710014, China | | XUE Chunfang | Shaanxi Provincial Bureau of Meteorology, Xi'an, Shaanxi 710014, China | | LI Qing | Shaanxi Provincial Bureau of Meteorology, Xi'an, Shaanxi 710014, China | | WU Linrong | Shaanxi Provincial Weather Observatory, Xi'an, Shaanxi 710014, China |
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| Abstract: |
| In this paper, selected areas in Shaanxi Province in 1951～1999 between the 442 cases as a typical representative of a drought, according to 96 meteorological stations data, by calculating the percentage anomal
y precipitation six drought indexes, such as grading and drought disaster and the actual conduct comparative analysis, the results as an indicator whether or not the basis for the application. In the localization of each indicator on the basis of analysis of the applicability, but also all the indicators in Shaanxi app
licability of a comparative analysis, statistical indicators in each of the different regions of Shaanxi, the frequency of application of different seasons, to select one of the highest frequency (or Many) as indicators of the region, the best indicator of the season, thus establishing a set of Shaanxi suitable for the actual sub-regional, sub-season drought index system; Through 2000～2005 occurred in the selection of Shaanxi's 48 independent samples of the drought index system can be tested, the results show that: the establishment of the drought index system in different regions of Shaanxi, in different seasons has good applicability, the index system for Shaanxi drought monitoring and early warning assessment of the business establishment of the platform provides a reliable technical support. |
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