Hydrological And Water Quality Modeling In
The Ontario River Basins:
Comparison Of Model Results
Author(s)
R. P. Rudra, B. Gharabaghi, S. Gebremeskel, S. Das & H. Bai
Abstract
The applicability and validity of hydrological and water quality models has to be
critically evaluated before they can be used in a basin different from where they
were originally developed. Variations in physiographic characteristics and
climate regime will affect the choice of a suitable hydrological model as models
vary in the assumption and simplification of the natural process. These entail
evaluation and if necessary modification of the original model assumptions,
processes descriptions and structure to suit the river basin in consideration. The
objective of this study is to investigate the applicability of widely used
hydrological and water quality models under the Ontario condition in Canada. In
this study the ANNualized AGricultural Non-Point Source (AnnAGNPS) and the
Areal Non-Point Source Watershed Environmental Response Simulation
(ANSWERS-2000) are considered. First, the uncalibrated models were applied
to the Canagagigue Creek, a tributary of the Grand River basin in Ontario,
Canada for a period of 1998–1999 on a daily basis. Based on parameter
sensitivity analysis, the models were calibrated. Finally, the performance of the
models were assessed and evaluated for their ability to simulate streamflows and
sediment yield.
Keywords: water quality, hydrological modeling, Canagagigue creek, Grand
River basin.
1 Introduction
There is mounting evidence to suggest the water quality in Grand River basin is
under increasing threat. The main causes of this degradation in water quality are
pollution derived from point and non-point sources. There have been some
Keywords
water quality, hydrological modeling, Canagagigue creek, Grand
River basin.
Related Book
Other papers in this volume
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