Monitoring:Temperature and DO
Model Application: Temperature and Dissolved Oxygen
In this study, A CE-QUAL-W2 model was developed to simulate hydrodynamics, temperature, and DO within Cordell Hull Reservoir in Tennessee for a wet, an average, and a dry April through October for the purposes of (a) developing a better understanding of the interactions between stratification and hydrodynamics in this reservoir; (b) evaluating the water quality impacts of proposed submerged weir placement; and (c) evaluating the effects of hydropower operations on reservoir water quality characteristics.
- Initial Conditions
- Initial Temperature: The entire reservoir was assumed to be homogenous on 1 April of each year simulated
- Initial DO Concentration: The entire reservoir was assumed to be homogenous on 1 April of each year simulated
- Boundary Conditions
- Solar radiation: Computed using air temperature, cloud cover, dew point temperature, and wind speed on a daily average basis. Data were obtained from the Meteorological Support Group at Scott Air Force Base, Illinois, for the Nashville Airport weather station.
- Coefficient of surface heat exchange: Provided on a daily averaged basis by the Nashville District as computed from the Nashville weather station located at the Nashville Airport which is about 69 km west of the dam.
- Equilibrium temperature: Provided on a daily averaged basis by the Nashville District as computed from the Nashville weather station located at the Nashville Airport which is about 69 km west of the dam.
- Wind speed and direction
- Branch Inflows
- Branch Outflows
- Inflow Temperatures
- Inflow DO Concentration
- In-Pool/In-Situ Data
- Temperature profiles: Taken at six different locations
- Release temperatures
- DO profiles
- Release DO concentrations
- Water Budget
- Daily water surface elevations
- Howington, Stacy E., 1988 (Aug). "Application of a Two-Dimensional Model of Hydrodynamics and Water Quality (CE-QUAL-W2) to Cordell Hull Reservoir, Tennessee," Technical Report H-88-19, US Army Engineer Waterways Experiment Station, Vicksburg, MS.