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Portland State University

2006

Civil and Environmental Engineering Faculty Publications and Presentations

Pend Oreille River -- Idaho -- Water quality -- Models

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Idaho Pend Oreille River Model: Model Development And Calibration, Robert Leslie Annear, Chris Berger, Scott A. Wells Nov 2006

Idaho Pend Oreille River Model: Model Development And Calibration, Robert Leslie Annear, Chris Berger, Scott A. Wells

Civil and Environmental Engineering Faculty Publications and Presentations

The objectives of this project were to:

• Develop a hydrodynamic and temperature model of Pend Oreille River using CE-QUAL-W2 Version 3.2

• Calibrate the CE-QUAL-W2 model to field data collected during 2004 and 2005 using the following water quality variables:

  • flow, water surface elevation, and velocity
  • temperature o dissolved oxygen
  • nutrients (NO3-N+NO2-N, NH4-N, PO4-P)
  • algae – chlorophyll a
  • BOD5 and dissolved organic matter and particulate organic matter compartments (both labile and refractory) for the organic matter cycling with algae
  • periphyton

The model chosen for development was CE-QUAL-W2 Version 3.2 (Cole and Wells, 2004). This is a two-dimensional unsteady hydrodynamic …