Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021WR030618 |
Prediction of Streamflow Recession Curves in Gauged and Ungauged basins | |
Shailesh Kumar Singh; George A. Griffiths | |
2021-11-05 | |
发表期刊 | Water Resources Research
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出版年 | 2021 |
英文摘要 | Prediction of the time for perennial outflow from a natural basin to recede from the mean to some low flow value is an important practical and difficult problem in water resource management. This study aims to gain further understanding of this complex problem and to put forward new practical and accurate methods for predicting flow recessions between nominated limits in both gauged and ungauged basins. For a gauged basin, a three parameter recession model is employed to estimate the recession time, from day-to-day, as flow recedes from mean flow using previously measured site recession curves and a library of recession curve shapes generated by the RObust Parameter Estimation (ROPE) algorithm. The model is tested using data from ten New Zealand basins which are diverse in low flow hydrological behavior and yields a Median Absolute Error (MAE) of one day. Another new model is also developed to predict recession time in an ungauged basin using catchment characteristics and information from master recession curves in a suite of ten reference basins geologically and hydrologically similar to the ungauged basin, as assessed by a Random Forest Model. Model performance is robust with a MAE of one day and the models advance the use of past flow records to enable more accurate predictions to be obtained. They can be applied elsewhere with confidence although further testing is desirable. This article is protected by copyright. All rights reserved. |
领域 | 资源环境 |
URL | 查看原文 |
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/341093 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Shailesh Kumar Singh,George A. Griffiths. Prediction of Streamflow Recession Curves in Gauged and Ungauged basins[J]. Water Resources Research,2021. |
APA | Shailesh Kumar Singh,&George A. Griffiths.(2021).Prediction of Streamflow Recession Curves in Gauged and Ungauged basins.Water Resources Research. |
MLA | Shailesh Kumar Singh,et al."Prediction of Streamflow Recession Curves in Gauged and Ungauged basins".Water Resources Research (2021). |
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