Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021WR029787 |
Use of abstraction and discharge data to improve the performance of a national-scale hydrological model | |
Ponnambalam Rameshwaran; Victoria A. Bell; Matthew J. Brown; Helen N. Davies; Alison L. Kay; Alison C. Rudd; Catherine Sefton | |
2021-12-16 | |
发表期刊 | Water Resources Research
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出版年 | 2021 |
英文摘要 | Across the UK, water abstracted from ground, surface and tidal stores is regulated through a system of licences to protect both the sources and the environment. Similar permits are required for discharging wastewater to rivers or onto the ground. These abstractions and discharges can have a significant impact on UK Rivers, but measurements are not readily available which discourages their use in hydrological models of river flows. However, these very unique datasets provide a means to improve the performance of spatially distributed hydrological models, particularly during periods when abstraction regulations change, and at ungauged river locations. To demonstrate this, point source abstraction and discharge measurements across England have been transformed into 1km×1km resolution gridded data and used with an enhanced formulation of the Grid-to-Grid (G2G) hydrological model where these processes are mathematically represented. A comparison of G2G-simulated and gauged river flows for 605 catchments across England between 1999 and 2014 indicates that model simulation of river flows are generally improved at gauged locations downstream of abstraction/discharge sites. The main improvement is in simulation of low flows, for which the median performance is improved by 10.7%, however, the impact on simulation of high river flows is more modest (1.5% improvement). These results demonstrate the potential gains available to the international hydrological and land-surface modelling community from using records of actual water use (where available) in models, in place of more-widely used national statistics. 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/344155 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Ponnambalam Rameshwaran,Victoria A. Bell,Matthew J. Brown,et al. Use of abstraction and discharge data to improve the performance of a national-scale hydrological model[J]. Water Resources Research,2021. |
APA | Ponnambalam Rameshwaran.,Victoria A. Bell.,Matthew J. Brown.,Helen N. Davies.,Alison L. Kay.,...&Catherine Sefton.(2021).Use of abstraction and discharge data to improve the performance of a national-scale hydrological model.Water Resources Research. |
MLA | Ponnambalam Rameshwaran,et al."Use of abstraction and discharge data to improve the performance of a national-scale hydrological model".Water Resources Research (2021). |
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