thumbnail

Evaluation of a digital model for estuarine water quality simulation in waste allocation studies

Water-Resources Investigations Report 78-54

By:
, ,

Links

Abstract

Hydrologic and water-quality data were collected on 4 estuaries in Pasco, Citrus, and Pinellas Counties, Florida, to evaluate modeling results. Current and predicted waste loading of the four estuaries was simulated by use of a two-dimensional steady-state, intertidal-condition model. Concentrations of DO, carbonaceous and nitrogenous BOD, and chloride were simulated as averages over a tidal cycle. General equations for the model are based on the law of conservation of mass. Assumption of steady-state required that water-quality data for calibration be averaged over an appropriate time cycle with respect to volume and cross-section. Diurnal DO fluctuation was determined in 2 estuaries for evaluating the influence of photosynthesis and respiration. The estuary model is best applied by calibrating it for a particular set of observed conditions, and then using this calibrated model for sensitivity analyses without attempting to verify the chosen parameter values against a second set of conditions. Sensitivity analyses included dispersion coefficient , decay rates, photosynthesis, and respiration. (Woodard-USGS)

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Evaluation of a digital model for estuarine water quality simulation in waste allocation studies
Series title:
Water-Resources Investigations Report
Series number:
78-54
Edition:
-
Year Published:
1979
Language:
ENGLISH
Publisher:
U.S. Dept. of the Interior, Geological Survey,
Description:
v, 50 p. :ill., maps ;26 cm.