Seminar Abstract

John Yearsley   

Thursday, October 4, 2007

A one-dimensional water temperature model for branched river systems

The one-dimensional water temperature model was developed initially to provide the basis for a water temperature plan for the Columbia and Snake Rivers to comply with Section 303 (d) of the Clean Water Act. The model uses the energy budget method to determine heat fluxes and solves the energy equation with a semi-Lagrangian numerical scheme. The model has been tested on impounded reaches of the Columbia and Snake Rivers as well as on the freely-flowing reaches of the Clearwater, Columbia, Fraser and Snake Rivers.

Speaker bio:

John Yearsley is a retired Environmental Scientist from the USEPA and currently a lecturer and Affiliate Faculty member in the Department of Civil and Environmental Engineering at the University of Washington. John has a SB in Mechanical Engineering from MIT, a MS in Geology and Geophysics from MIT, a MS in Mechanical Engineering from the University of Washington, and a PhD in Civil Engineering from the University of Washington.