A Review of Modelling Tools for Implementation of the EU Water Framework Directive in Handling Diffuse Water Pollution

Yang, Yuesuo and Wang, L. 2010. A Review of Modelling Tools for Implementation of the EU Water Framework Directive in Handling Diffuse Water Pollution. Water Resources Management 24 (9) , pp. 1819-1843. 10.1007/s11269-009-9526-y

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Abstract

A numerical catchment-scale model capable of simulating diffuse water pollution is necessary in sustainable environmental management for better implementation of the EU Water Framework Directive. This paper provides critical reviews of most popular and free models for diffuse water modelling, with detailed sources and application potential. Based upon these reviews, further work of selecting and testing the HSPF model was carried out, with a case study in the Upper Bann Catchment, Northern Ireland. The calibrated and validated HSPF model can well represent the characteristics of surface water quantity and quality. Climate change scenario evaluation in 5 years showed that when the annual mean temperature increase 3°C the mean yearly total runoff volume will decrease by 11.1% and the mean daily river flow 11.4%. If 20% crop and pasture land is converted into forest land in the study area, the mean river concentration of nitrate, nitrite, NH4 and PO4 in 5 years will decrease by 19.4%, 33.3%, 31.3% and 31.3% respectively. When applying filter strip method in 80% crop and pasture land in the area, the reduction of the mean concentration of nitrate, nitrite, NH4 and PO4 in 5 years will be 15.3%, 33.3%, 31.3%, and 5.6% respectively. This study shows that HSPF is a suitable model in handling diffuse source water pollution, which can be introduced into the Programme of Measures in the River Basin Management Plans for better implementation of the EU WFD.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Earth and Environmental Sciences
Subjects:	G Geography. Anthropology. Recreation > GE Environmental Sciences Q Science > QE Geology T Technology > TC Hydraulic engineering. Ocean engineering
Uncontrolled Keywords:	Diffuse water pollution - Water quality modelling - Catchment - EU Water Framework Directive - Climate change
Publisher:	Springer
ISSN:	0920-4741
Last Modified:	19 Mar 2016 22:16
URI:	https://orca.cardiff.ac.uk/id/eprint/9890

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