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中文摘要：
为了研究气象干旱指数对西南干旱的监测状况,及干旱指数在西南地区的适用性,本文利用西南地区90个气象站的观测资料,根据中国气象局提出的综合气象干旱指数（CI）的计算方法,以西南地区在2009/2010年的干旱事件为例,对CI指数公式进行分析和修正,验证了修正后的CI指数有较好的适用性,对2009/2010年干旱事件的空间演变特征反映清晰,与实际旱情的空间分布比较一致,在干旱等级方面有较好的反映,较其他的干旱指数监测效果更好.
英文摘要：
The situation of Southwest China drought that monitoring by meteorological drought index and meteorological drought index＇s applicability in Southwest China have been studied in the paper.With the meteorological observational data and the calculation method of national standard meteorological drought index proposed by the China Meteorological Administration and as the drought events occurred in Southwest China during 2009 to 2010as examples,the calculation of meteorological drought index has been analyzed and modified in this paper.The application of modification meteorological drought index monitoring the droughts occurred in Southwest China,its testing result shows that the new composite index has a preferably applicability.The new CI index can clearly reflect the characteristics of spatial evolution,which keeps with the spatial distribution of actual drought,and which works better than other drought index in the monitoring results.
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