Evaluation of Water Quality in Barkley Lake and Embayments with the BETTER-2D Model.

摘要

BETTER, a two-dimensional mathematical water quality model, was used to simulate water quality conditions in the main-stem and two embayments of Lake Barkley. Sources and preparation of input data including reservoir and outlet geometry, meteorological conditions, model coefficients and inflow quality and quantity, are described. The report also outlines revisions to the model for the Barkley application, and calibration and verification procedures. Three years, 1984-1986, were simulated under observed conditions and model predictions were compared to observed data. Additional computerized simulations were performed to estimate impacts on water quality resulting from summer storm events, increased loadings of organic materials and nutrients, and the Cumberland Steam Plant. Knowledge gained from simulations with the model is summarized and recommendations for future applications and field studies are made. Tennessee; Kentucky; Cumberland River; Mathematical models; BETTER computer program. (edc)