DOI: 10.5194/hess-19-1641-2015
Scopus记录号: 2-s2.0-84927632918
论文题名: The Catchment Runoff Attenuation Flux Tool, a minimum information requirement nutrient pollution model
作者: Adams R ; , Quinn P ; F ; , Bowes M ; J
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2015
卷: 19, 期: 4 起始页码: 1641
结束页码: 1657
语种: 英语
Scopus关键词: Decision making
; Nutrients
; Phosphorus
; Runoff
; Uncertainty analysis
; Water quality
; Catchment runoffs
; Ecological status
; Management interventions
; Mesoscale catchments
; Mesoscale modelling
; Minimum information
; Nutrient pollution
; Soluble reactive phosphorus
; Catchments
; catchment
; flow control
; nutrient enrichment
; policy making
; runoff
; water management
; water quality
; Dorset [England]
; England
; United Kingdom
英文摘要: A model for simulating runoff pathways and water quality fluxes has been developed using the minimum information requirement (MIR) approach. The model, the Catchment Runoff Attenuation Flux Tool (CRAFT), is applicable to mesoscale catchments and focusses primarily on hydrological pathways that mobilise nutrients. Hence CRAFT can be used to investigate the impact of flow pathway management intervention strategies designed to reduce the loads of nutrients into receiving watercourses. The model can help policy makers meet water quality targets and consider methods to obtain "good" ecological status. A case study of the 414 km2 Frome catchment, Dorset, UK, has been described here as an application of CRAFT in order to highlight the above issues at the mesoscale. The model was primarily calibrated on 10-year records of weekly data to reproduce the observed flows and nutrient (nitrate nitrogen - N; phosphorus - P) concentrations. Data from 2 years with sub-daily monitoring at the same site were also analysed. These data highlighted some additional signals in the nutrient flux, particularly of soluble reactive phosphorus, which were not observable in the weekly data. This analysis has prompted the choice of using a daily time step as the minimum information requirement to simulate the processes observed at the mesoscale, including the impact of uncertainty. A management intervention scenario was also run to demonstrate how the model can support catchment managers investigating how reducing the concentrations of N and P in the various flow pathways. This mesoscale modelling tool can help policy makers consider a range of strategies to meet the European Union (EU) water quality targets for this type of catchment. © Author(s) 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78558
Appears in Collections: 气候变化事实与影响
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作者单位: School of Civil Engineering and Geosciences, Newcastle University, Newcastle upon Tyne, United Kingdom; Centre for Ecology and Hydrology, Maclean Building, Crowmarsh Gifford, Wallingford, Oxfordshire, United Kingdom
Recommended Citation:
Adams R,, Quinn P,F,et al. The Catchment Runoff Attenuation Flux Tool, a minimum information requirement nutrient pollution model[J]. Hydrology and Earth System Sciences,2015-01-01,19(4)