Revisiting the White method for estimating groundwater evapotranspiration: a consideration of sunset and sunrise timings | |
Wang, Tian-Ye1,2; Wang, Ping1; Yu, Jing-Jie1,2; Pozdniakov, Sergey P.3; Du, Chao-Yang1; Zhang, Yi-Chi1 | |
刊名 | ENVIRONMENTAL EARTH SCIENCES |
2019-07-01 | |
卷号 | 78期号:14页码:7 |
关键词 | Groundwater recharge rate Groundwater evapotranspiration Water table fluctuations Phreatophytes |
ISSN号 | 1866-6280 |
DOI | 10.1007/s12665-019-8422-x |
通讯作者 | Wang, Ping(wangping@igsnrr.ac.cn) ; Yu, Jing-Jie(yujj@igsnrr.ac.cn) |
英文摘要 | The well-known White method(A method of estimating ground-water supplies based on discharge by plants and evaporation from soil: Results of investigation in Escalante Valley, Utah. Washington D.C, US Geological Survey. Water Supply Paper 659-A United States Department of the Interior, 1932) based on diurnal water table observations has been widely applied to estimate groundwater evapotranspiration (ETG) from phreatophyte vegetation. One of the limitations of this method is its large uncertainties in quantifying the daily groundwater recovery rate (r), which is assumed to be equal to the average rate of groundwater level rise between midnight (i.e., 00:00h) and 04:00h. Recent studies pointed out that ETG is highly dependent on the shape and duration of the diurnal clear-sky solar radiation curve and that using the groundwater recovery rate over a short interval of nighttime hours to represent the daily r may lead to large uncertainties in ETG estimates. In this study, we analysed the dependence of the estimated daily r on the sunset and sunrise timings. Numerical experiment results showed that the estimated r is highly sensitive to the duration between sunset and sunrise, which varies seasonally. Instead of using fixed time spans (TSs), e.g., from midnight to 04:00h, we recommend a more universal method for determining the TS, which is associated with the sunset and/or sunrise timings and used to estimate the daily r. This dynamic TS approach was tested at a Tamarix ramosissima-dominated riparian site with a hyper-arid climate (precipitation of 35mma(-1)) in northwestern China. Compared with the observed evapotranspiration (ET), our approach showed better performance and less subjectivity in estimating ETG than the traditional White approach. |
资助项目 | National Natural Science Foundation of China[41671023] ; National Natural Science Foundation of China[41877165] ; National Natural Science Foundation of the China-Russian Foundation for Basic Research (NSFC-RFBR) Programme 2018-2019[41811530084] ; National Natural Science Foundation of the China-Russian Foundation for Basic Research (NSFC-RFBR) Programme 2018-2019[18-55-53025 GammaPhiEH_a] ; China Geological Survey Project[DD20190504] ; Special Exchange Program of Chinese Academy of Sciences 2019-2020 |
WOS关键词 | WATER ; FLUCTUATIONS |
WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
语种 | 英语 |
出版者 | SPRINGER |
WOS记录号 | WOS:000475700900003 |
资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of the China-Russian Foundation for Basic Research (NSFC-RFBR) Programme 2018-2019 ; China Geological Survey Project ; Special Exchange Program of Chinese Academy of Sciences 2019-2020 |
内容类型 | 期刊论文 |
源URL | [http://ir.igsnrr.ac.cn/handle/311030/58274] |
专题 | 中国科学院地理科学与资源研究所 |
通讯作者 | Wang, Ping; Yu, Jing-Jie |
作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, 11A Datun Rd, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Lomonosov Moscow State Univ, Dept Hydrogeol, GSP 1, Moscow 119899, Russia |
推荐引用方式 GB/T 7714 | Wang, Tian-Ye,Wang, Ping,Yu, Jing-Jie,et al. Revisiting the White method for estimating groundwater evapotranspiration: a consideration of sunset and sunrise timings[J]. ENVIRONMENTAL EARTH SCIENCES,2019,78(14):7. |
APA | Wang, Tian-Ye,Wang, Ping,Yu, Jing-Jie,Pozdniakov, Sergey P.,Du, Chao-Yang,&Zhang, Yi-Chi.(2019).Revisiting the White method for estimating groundwater evapotranspiration: a consideration of sunset and sunrise timings.ENVIRONMENTAL EARTH SCIENCES,78(14),7. |
MLA | Wang, Tian-Ye,et al."Revisiting the White method for estimating groundwater evapotranspiration: a consideration of sunset and sunrise timings".ENVIRONMENTAL EARTH SCIENCES 78.14(2019):7. |
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