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| 近50年四川地区旱涝时空变化特征研究 | |
| 引用本文： | 齐冬梅,李跃清,陈永仁,王斌,刘昆鹏,白莹莹.近50年四川地区旱涝时空变化特征研究[J].高原气象,2011,30(5):1170-1179. |
| 作者姓名： | 齐冬梅 李跃清 陈永仁 王斌 刘昆鹏 白莹莹 |
| 作者单位： | 1. 中国气象局成都高原气象研究所,四川成都,610072 2. 四川省气象台,四川成都,610072 3. 交通运输部东海第一救助飞行队,上海,200137 4. 重庆市气象科学研究,重庆,401147 |
| 基金项目： | 成都高原气象研究所基本科研项目(BROP201016);成都高原气象研究所高原气象开放基金项目(LPM2009008)共同资助 |
| 摘 要： | 根据1961-2007年四川地区123个测站的逐日降水资料和NCEP/NCAR逐月再分析资料,采用Z指数作为旱涝等级划分标准,分析了四川地区旱涝出现的频率,采用EOF、REOF分析、趋势分析、滑动t检验以及小波分析等方法,研究了四川地区旱涝灾害发生、发展的空间演变特征及时间变化趋势。结果表明,该地区旱涝事件的空间分布可... |
| 关 键 词： | 四川地区 旱涝等级 高原季风 |
Spatial-Temporal Variations of Drought and Flood Intensities in Sichuan Region in the Last 50 Years |
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| QI Dong-mei,LI Yue-qing,CHEN Yong-ren,WANG Bin,LIU Kun-peng,BAI Ying-ying.Spatial-Temporal Variations of Drought and Flood Intensities in Sichuan Region in the Last 50 Years[J].Plateau Meteorology,2011,30(5):1170-1179. | |
| Authors: | QI Dong-mei LI Yue-qing CHEN Yong-ren WANG Bin LIU Kun-peng BAI Ying-ying |
| Affiliation: | QI Dong-mei1,LI Yue-qing1,CHEN Yong-ren2,WANG Bin1,LIU Kun-peng3,BAI Ying-ying4 (1.Chengdu Institute of Plateau Meteorology,CMA,Chengdu 610072,China,2.Sichuan Provincial Meteorological Office,3.Donghai No.1 AirRescue Service,Shanghai 200137,4Chongqing Institute of Meteorological Sciences,Chongqing 401147,China) |
| Abstract: | The frequencies of drought and flood events in Sichuan were analyzed based on the daily precipitation data at 123 stations in summer from 1961 to 2007 and the NCEP/NCAR monthly reanalysis data,taking Z index method as classify the drought and flood grades.In addition,the EOF,REOF,linear trend,running t test,and wavelet analysis methods were used to analyze the temporal and spatial change trends of drought and flood events in Sichuan.The analyzed results are as follows: Drought and flood events in Sichuan re... |
| Keywords: | Sichuan region Flood and drought grades Plateau monsoon |
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