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| 三种干旱指标在北京地区的应用对比研究 | |
| 引用本文： | 王璐,温海燕,杨春生,程兵峰,李琼芳,时振阁,李鹏程. 三种干旱指标在北京地区的应用对比研究[J]. 水电能源科学, 2012, 30(3): 5-7,212 |
| 作者姓名： | 王璐 温海燕 杨春生 程兵峰 李琼芳 时振阁 李鹏程 |
| 作者单位： | 1. 河海大学水文水资源与水利工程科学国家重点实验室,江苏南京210098;河海大学水文水资源学院,江苏南京210098 2. 河北省唐秦水文水资源勘测局,河北唐山,063000 3. 黑龙江省水文局,黑龙江哈尔滨,150001 4. 水利部海河水利委员会水文局,天津,300170 |
| 基金项目： | 国家自然科学基金资助项目（41171220）；水利部公益性行业科研专项基金资助项目（200901045，201001069，201101052）；教育部长江学者和创新团队发展计划基金资助项目（IRT0717）；高等学校学科创新引智计划基金资助项目(B08048) |
| 摘 要： | 基于北京地区的气象资料,比较分析了月尺度、季尺度、年尺度的标准化降水指数(SPI)、降水成数(Deciles)、干旱侦测指数(RDIst),采用1958～2008年的气象资料研究了三者的相关关系,并分析了其在北京地区1999～2007年连旱期间的应用效果。结果表明,SPI和RDIst的相关关系较好,RDIst考虑了蒸发因素对干旱的作用,对实际情况的反映最好,且计算结果稳定,略优于在我国使用广泛的SPI指标。Deciles对降水的敏感度高,月尺度和季尺度的Deciles指标不适于在北京地区应用,而年尺度的Deciles则最能反映干旱过程在历史系列的严重程度。 |
| 关 键 词： | 干旱指标 标准化降水指数 降水成数 干旱侦测指数 北京地区 |
Comparison of Three Drought Indices in Beijing Area |
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| WANG Lu,WEN Haiyan,YANG Chunsheng,CHENG Bingfeng,LI Qiongfang,SHI Zhenge and LI Pengcheng. Comparison of Three Drought Indices in Beijing Area[J]. International Journal Hydroelectric Energy, 2012, 30(3): 5-7,212 | |
| Authors: | WANG Lu WEN Haiyan YANG Chunsheng CHENG Bingfeng LI Qiongfang SHI Zhenge LI Pengcheng |
| Affiliation: | . State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China; 2. College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China;;3. Tangqin Bureau of Hydrological and Water Resource Survey of Hebei Province, Tangshan 063000, China;;4. Hydrological Bureau of Heilongjiang Province, Harbin 150001, China;;5. Hydrological Bureau of Hai River Water Conservancy Commission, Ministry of Water Resources, Tianjin 300170, China;. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China; 2. College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China;;3. Tangqin Bureau of Hydrological and Water Resource Survey of Hebei Province, Tangshan 063000, China;;. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China; 2. College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China; |
| Abstract: | According to meteorological data in Beijing area, the deciles index (Deciles), standard precipitation index (SPI), reconnaissance drought index (RDIst) in monthly, seasonal and yearly scale are compared. And the meteorological data during 1958-2008 is used to study three indexes relationship. The indexes are applied to analyze the effect of continuous drought during 1999-2007. The results show that SPI and RDIst have good correlation; RDIst considers the influence of evaporation on drought and it reflects actual situation very well with stable results; however, the RDIst is better than SPI. Deciles is sensitive to precipitation. Deciles in monthly and seasonal scale is not suitable for application to Beijing area, but Deciles in yearly scale can better reflect the serious extent of drought process in historical series. |
| Keywords: | drought indices standard precipitation index deciles index reconnaissance drough index Beijing area |
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