Integrated modelling of hydrological and hydrodynamic processes, dynamic bacteria decay with climate change and intensive farming in riverine and estuarine water

Shi, Jie 2016. Integrated modelling of hydrological and hydrodynamic processes, dynamic bacteria decay with climate change and intensive farming in riverine and estuarine water. PhD Thesis, Cardiff University. Item availability restricted.

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Abstract

The water quality deteriorations in river and estuarine waters are a global issue. Particularly, the water quality impairment due to contamination of Faecal Bacteria Indicator, such as E. coli and Faecal Coliform in river channel, estuary bathing and shellfish waters are of special interests due to potential risks to human health. These indicators are important in water quality assessment outlined in both EU Water Framework Directive and US Clear Water Act. The hypothesis of the study is that the global climate change and intensive farming would cause severe deterioration to faecal coliform levels in these water bodies. Approaches to quantify these impacts are carried out with numerically modelling through catchment model Soil and Water Assessment Tool (SWAT) and hydrodynamic model DIVAST with the focus in the coastal catchment of river Frome and Piddle connected to a natural harbour in Dorset, southern England. Firstly, the SWAT model is employed to assess the catchment flow regime and set up the baseline condition of river flow in both hourly and daily time step. The hourly simulation using Green & Ampt infiltration has excellent model performance with Nash Sutcliff Efficiency (NSE) and

Item Type:	Thesis (PhD)
Date Type:	Completion
Status:	Unpublished
Schools:	Engineering
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering
Uncontrolled Keywords:	Lowland Hydrological Modelling; Faecal Coliform Decay; Sub-daily SWAT Modelling; Climate Change; Intensive Farming; Hydrodynamic Modelling.
Date of First Compliant Deposit:	1 March 2017
Last Modified:	28 Oct 2021 08:32
URI:	https://orca.cardiff.ac.uk/id/eprint/98617

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