Different Precipitation Elasticity of Runoff for Precipitation Increase and Decrease at Watershed Scale
文献类型：期刊论文
| 作者 | Tang, Yin1; Tang, Qiuhong1,2 ; Wang, Zhonggen1; Chiew, Francis H. S.3; Zhang, Xuejun1; Xiao, Han4
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| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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| 出版日期 | 2019-11-26 |
| 页码 | 12 |
| ISSN号 | 2169-897X |
| 关键词 | elasticity of runoff precipitation increase precipitation decrease aridity MOPEX |
| DOI | 10.1029/2018JD030129 |
| 通讯作者 | Tang, Qiuhong(tangqh@igsnrr.ac.cn) |
| 英文摘要 | The precipitation elasticity of runoff, defined as the percentage change in mean annual runoff for a given percentage change in mean annual precipitation, has been widely used as a simple rule of thumb for estimating runoff sensitivity to changes in precipitation. Most applications assume the same runoff sensitivity for both an increase and a decrease in precipitation. This study examines this assumption using long historical annual precipitation and streamflow data from 353 watersheds across the United States. The results show that the assumption is acceptable in humid and subhumid regions (aridity index less than 1.0). However, in arid and semiarid regions (aridity index greater than 1.0), the sensitivity of runoff to precipitation is greater for a decrease in precipitation than for an increase in precipitation. Therefore, the use of precipitation elasticity of runoff estimated using the entire data set in semiarid and arid regions will result in an overestimation of runoff increase from precipitation increase and an underestimation of runoff decrease from a decrease in precipitation. These findings suggest that multiple precipitation elasticities of runoff may be needed to estimate nonlinear responses of streamflow to precipitation change in a changing climate, especially for persistent increase and decrease in precipitation. |
| WOS关键词 | CLIMATE-CHANGE ; SENSITIVITY ; STREAMFLOW ; SCIENCE ; MODEL ; RAIN |
| 资助项目 | National Natural Science Foundation of China[41730645] ; National Natural Science Foundation of China[41425002] ; National Natural Science Foundation of China[41790424] ; National Key Research and Development Program of China[2017YFB0203100] ; International Partnership Program of Chinese Academy of Sciences[131A11KYSB20170113] ; Newton Advanced Fellowship |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | AMER GEOPHYSICAL UNION |
| WOS记录号 | WOS:000498557800001 |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program of China ; International Partnership Program of Chinese Academy of Sciences ; Newton Advanced Fellowship |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/130071]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Tang, Qiuhong |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.CSIRO Land & Water, Canberra, ACT, Australia 4.Tianjin Univ Sci & Technol, Coll Marine & Environm, Lab Coastal Groundwater Utilizat & Protect, Tianjin, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Yin,Tang, Qiuhong,Wang, Zhonggen,et al. Different Precipitation Elasticity of Runoff for Precipitation Increase and Decrease at Watershed Scale[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019:12. |
| APA | Tang, Yin,Tang, Qiuhong,Wang, Zhonggen,Chiew, Francis H. S.,Zhang, Xuejun,&Xiao, Han.(2019).Different Precipitation Elasticity of Runoff for Precipitation Increase and Decrease at Watershed Scale.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,12. |
| MLA | Tang, Yin,et al."Different Precipitation Elasticity of Runoff for Precipitation Increase and Decrease at Watershed Scale".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES (2019):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
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