Calibration of a Water-Quality Model for Low-Flow Conditions on the Red River of the North at Fargo, North Dakota, and Moorhead, Minnesota, 2003

摘要

The purpose of this report is to document the development, calibration, and testing of the Fargo WASP water-quality model for low-flow conditions. Specific objectives of the study were to analyze the data collected during September 2003 and provide estimates for stream velocities, traveltimes, and reaeration-rate coefficients and to calibrate the Fargo WASP water-quality model.The Fargo WASP water-quality model was calibrated for streamflow, transport, DO, and ammonia during steady-state conditions. Data collected during low-flow conditions from September 24 through 27, 2003, were used to calibrate the model, while data collected during 1989 and 1990 (Weso-lowski, 1994) were used to test the model. The data used to calibrate the model were collected within the 19.2-mi reach from just downstream from Dam A to about 2 mi upstream from the confluence of the Sheyenne and Red Rivers (fig. 2).