Dissolved Gas Modeling Core Team

From 1995 through 1997, the Dissolved Gas Modeling Core Team web page coordinated the work of multiple agencies to develop and implement dissolved gas modeling for the major hydroelectric projects in the Columbia Basin. These web pages are hosted by CBR for archival purposes only.

Dissolved Gas Modeling Core Team was formed as a part of the Dissolved Gas Abatement Study (DGAS) run by the U.S. Army Corps of Engineers. Our ultimate goal is to provide tools for the Corps to better analyze the effects of different operations of the dams on the river system. In particular, we focus on the problem of dissolved gas being generated by the dams and its effects on the fish.

Who We Are

We are a group of scientists, engineers, and data specialists who have been contracted by the COE. We come from a variety of institutions including:

• Aspen Applied Sciences
• Battelle Pacific Northwest National Laboratories
• University of Washington, CBR
• U.S. Army Corps of Engineers: Portland District + Walla Walla District

• Computer Models of salmon and the river system.
  • CRiSP
    The Columbia River Salmon Passage (CRiSP) model is an interactive, multiple window program that helps managers of water, hydropower, fisheries and recreation see the impact of their decisions on fish populations in the Columbia River.
  • Gas Production
    For CRiSP.1.6 new equations have been implemented for gas production from spill. As a part of the US Army Corps' Gas Abatement study, Waterways Experiment Station (WES) has developed these new equations as an improvement over GASPILL, which had been the predominantly used model for gas production
  • Columbia Basin Modeling for Dissolved Gas Study, PNNL
    As part of the U.S. Army Corps of Engineers Dissolved Gas Abatement Study (DGAS), Pacific Northwest National Laboratory is applying a mathematical model of unsteady state flow and gas transport to the Columbia and Snake River Systems. The model will be used to provide unsteady river flow rates, velocity, and dissolved gas concentration to fisheries biology models.

• Data Collection on gas levels in the river and on fish.
  • Daily Total Dissolved Gas Reports, USACE Portland District
  • Total Dissolved Gas (TDG) Reports -- hourly data from USACE Walla Walla District

• Papers and Abstracts
  • Technical Reports
    • Dissolved Gas in the Snake and Columbia Rivers 1969-1984 Modeled by CRiSP, Pamela Shaw, University of Washington
    • Gas Production Equations for CRiSP 1.6, Pamela Shaw, 21 April 1998, University of Washington
    • Gas Saturation and Sensitivity Analysis Using CRiSP, Pamela Shaw, University of Washington
  • Status Reports
    • Modeling Status Report for D-Gas work by the CRiSP Project, Pamela Shaw, University of Washington

• Meeting Archive for the Dissolved Gas Modeling Core Team.
  • Meeting Agendas
    • May.20.97 -- no agenda available
    • Jan.7-9.97
    • Dec.5.96
    • Sep.12.96
    • Mar.12.96
    • Nov.2.95
  • Meeting Notes
    • May.20.97
    • Jan.9.97
    • Dec.5.96 -- no notes available
    • Sep.12.96
    • Mar.12.96
    • Nov.2.95