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Monitoring for St. Louis Bay Estuary and Watershed Model Calibration Project Number: MX974727-03

Project Description: 
The development of a mathematical model of the physical, chemical and biological processes at the watershed scale requires integration of large quantities of geophysical data into a model to describe the particular study area.  The model development for St. Louis Bay watershed has been revisited and refined based on the previous modeling efforts, literature review, and consultation with soil scientists and agronomists of Extension Service of MSU.  The primary aspects revisited and refined included fertilization-related input parameters, plant uptake-related input parameters, nutrient input methods, non-crop land simulation using PQUAL module, and recalibration of hydrology in the Jourdan River.  Some of the refined model inputs have been substantiated by the St. Louis Bay watershed soil sample data and extensive edge-of-field collected from related studies.  The computed time series of water quality constituent were then set up as the boundary conditions of the bay water quality model (WASP).  The primary results from this modeling research can be summarized as follows:

Gulf of Mexico Program Office
Mail Code: EPA/GMPO
Stennis Space Center, MS 39529-6000
228-688-3726
FAX: 228-688-2709


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