San Joaquin River Dissolved Oxygen Depletion Modeling - Overview Presentation (HydroQual/JSA Model)
This is a large Power Point Presentation. In 2003, HydroQual and Jones and Stokes received a contract to develop a multi-dimensional model for the tidal reach of the San Joaquin River and the DWSC to Turner Cut/Columbia Cut. The following summary is from their Powerpoint presentation about the project. The modeling will be developed and run in 2004 and 2005.
Significant factors affecting DO in the DWSC
Geometry, flow, upstream organic matter, SOD, Stockton RWCF and other WWTPs
Needed to better define DO impacts due to stratification, OCOM, SOD and nutrient effects.
Develop DWSC and SJR Model of DO dynamics
Use as a management tool to develop TMDLs
Upstream SJR model coupled with the DWSC model near Mossdale or Vernalis
DWSC branched model to extend downstream to Turner Cut/Columbia Cut
Modeling period to include multi-year period (e.g., 2000-2002)
Will include RWCF discharge & instream aeration
Fate of algae in DWSC (growth or death)
THE MODEL PROVIDES
Links upstream organic matter delivery to DO depletion in the DWSC
Links settling organic matter to SOD
Stratification as a function of flow and diurnal heating/cooling
BOD & NH3 oxidation
ESTIMATED MODEL SCHEDULE
Start of modeling will follow development of Data Atlas 5/2004
DSM2-Delta modeling 7/2004
Upstream DSM2-SJR modeling 12/2004
DWSC modeling 3/2005 (begin 8/2004)
Coordination with other modeling and data collection studies
Contact modeling team.