Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017WR022039 |
Impact of Stage Measurement Errors on Streamflow Uncertainty | |
Horner, I.1; Renard, B.1; Le Coz, J.1; Branger, F.1; McMillan, H. K.2,3; Pierrefeu, G.4 | |
2018-03-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2018 |
卷号 | 54期号:3页码:1952-1976 |
文章类型 | Article |
语种 | 英语 |
国家 | France; New Zealand; USA |
英文摘要 | Stage measurement errors are generally overlooked when streamflow time series are derived from uncertain rating curves. We introduce an original method for propagating stage uncertainties due to two types of stage measurement errors: (i) errors of the stage read during the gauging and (ii) systematic and nonsystematic (independent) errors of the recorded stage time series. The error models are generic and can be used for any probabilistic rating curve estimation method that provides an ensemble of rating curves. The new method is applied to a range of six contrasting hydrometric stations in France. Uncertainty budgets quantifying the contribution of various error sources to the total streamflow uncertainty are computed and compared for streamflow time series averaged at time intervals from hour to year. A sensitivity analysis is conducted on the stage time series error model to identify the most sensitive parameters. The results are site specific, which illustrates the key role played by the properties of both the hydrometric site and the gauged catchment. Across the range of sites, stage errors of the gaugings are found to have limited impact on rating curve uncertainty, at least for gaugings performed in fair conditions. Nonsystematic errors in the stage time series have a negligible effect, generally. However, systematic stage errors should not be neglected. Over the six hydrometric stations in this study, the 95% uncertainty component reflecting stage systematic errors (from +/- 0.5 cm to +/- 6.8 cm) alone ranged from 4% to 12% of daily average streamflow, and from 1% to 3% of yearly average streamflow as sensors were assumed to be recalibrated every 30 days. Perspectives for improving and validating the streamflow uncertainty estimation techniques are eventually discussed. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000430364900031 |
WOS关键词 | RATING CURVE UNCERTAINTY ; VELOCITY-AREA METHOD ; BAYESIAN METHODS ; DISCHARGE ; FRAMEWORK ; STATIONS ; RIVER |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/21206 |
专题 | 资源环境科学 |
作者单位 | 1.Irstea, UR RiverLy, 5 Rue Doua CS 20244, F-69625 Villeurbanne, France; 2.Natl Inst Water & Atmospher Res, Hydrol Proc Grp, POB 8602, Christchurch, New Zealand; 3.San Diego State Univ, Dept Geog, San Diego, CA 92182 USA; 4.Compagnie Natl Rhone, Lyon, France |
推荐引用方式 GB/T 7714 | Horner, I.,Renard, B.,Le Coz, J.,et al. Impact of Stage Measurement Errors on Streamflow Uncertainty[J]. WATER RESOURCES RESEARCH,2018,54(3):1952-1976. |
APA | Horner, I.,Renard, B.,Le Coz, J.,Branger, F.,McMillan, H. K.,&Pierrefeu, G..(2018).Impact of Stage Measurement Errors on Streamflow Uncertainty.WATER RESOURCES RESEARCH,54(3),1952-1976. |
MLA | Horner, I.,et al."Impact of Stage Measurement Errors on Streamflow Uncertainty".WATER RESOURCES RESEARCH 54.3(2018):1952-1976. |
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