Scientific Investigations Report 2008-5070
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2008-5070
Modeling Water Temperature in the Yakima River, Washington, from Roza Diversion Dam to Prosser Dam, 2005–06
Prepared in cooperation with the Bureau of Reclamation
By Frank D. Voss, Christopher A. Curran, and Mark C. Mastin
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Figures
Figure 1. Location of Yakima River basin and study area, Washington.
Figure 2. Energy fluxes simulated for solution of the stream energy balance by the SNTEMP model.
Figure 3. Extent of the five SNTEMP models used to simulate water temperature in the Roza–Prosser Reach, Washington.
Figure 4. Difference between the SNTEMP branch and point source model configurations.
Figure 5. Model structure showing flows to and from the Roza–Prosser Reach, Washington.
Figure 6. Sites where simulated water temperatures are output from the model, Roza–Prosser Reach, Washington.
Figure 7. Location of AgriMet weather station (Harrah, Washington) and four U.S. Geological Survey weather stations at Roza, Parker, Granger, and Prosser, Washington.
Figure 8. Monthly distributions of solar radiation, daily mean air temperature, daily mean relative humidity, and daily mean wind speed at the AgriMet weather station (Harrah, Washington), January 1, 1988, through October 30, 2006.
Figure 9. Measured air temperature, solar radiation, and relative humidity at the AgriMet weather station (Harrah,) and four USGS weather stations (Roza, Parker, Granger, and Prosser), Roza–Prosser Reach, Washington, July 4 through September 30, 2006.
Figure 10. Locations of Bureau of Reclamation Hydromet sites and U.S. Geological Survey sites used to estimate flow to and from the Roza–Prosser Reach, Yakima River, Washington.
Figure 11. Locations where shade parameters were measured by the U.S. Geological Survey, Roza–Prosser Reach, Washington, October 2006.
Figure 12. Locations of sites where mean and maximum daily water temperature used for model calibration and testing were measured, Roza–Prosser Reach, Washington.
Figure 13. Monthly distributions of solar radiation, air temperature, relative humidity, and wind speed measured at the AgriMet weather station (Harrah), Roza–Prosser Reach, Washington, April through October 31, 2005.
Figure 14. Simulated and measured daily mean water temperature at Bureau of Reclamation gaging stations at Parker and Grandview, Roza–Prosser Reach, Washington, April 1 to October 31, 2005.
Figure 15. Simulated and measured daily maximum water temperature at three Bureau of Reclamation TidbiT sites near Parker, Granger, and Mabton, Washington, May 15 to October 31, 2005.
Figure 16. Monthly distributions of solar radiation, air temperature, relative humidity, and wind speed measured at the AgriMet weather station (Harrah), Roza–Prosser Reach, Washington, April 1 to October 31, 2006.
Figure 17. Tested simulated and measured daily mean water temperature at Bureau of Reclamation gaging stations at Parker and Grandview, Washington, April 1 to October 31, 2006.
Figure 18. Tested simulated and measured daily maximum water temperature at three TidbiT sites, Washington, April 1 to October 22, 2006.
Tables
Table 1. Population estimates for cities and towns adjacent to the Roza–Prosser Reach, Washington.
Table 2. Modules of the Stream Network Temperature Model and description of the functionality associated with each module.
Table 3. Bureau of Reclamation Hydromet gaging stations used to estimate flow in the Yakima River mainstem from Roza Diversion Dam to Prosser Dam, Washington.
Table 4. U.S. Geological Survey surface-water sites measured for flow, velocity, and water temperature in the Yakima River mainstem from Roza Diversion Dam to Prosser Dam, Washington, and joining creeks, diversions, wasteways, and drains, September 14–16, 2005.
Table 5. Data sources used to develop regression equations for the Yakima River above Roza Diversion Dam and the Naches River where the river joins the Roza–Prosser Reach, Washington.
Table 6. Inflowing laterals to the Roza–Prosser Reach, Washington, where regression equations were developed to estimate water temperature.
Table 7. Goodness-of-fit statistics for the final calibration simulation, Roza–Prosser Reach, Washington.
Table 8. Goodness-of-fit statistics for testing simulations, Roza–Prosser Reach, Washington.
Table 9. Monthly goodness-of-fit statistics for testing simulations, Roza-Prosser Reach, Washington.
Table 10. Results of sensitivity analysis, Roza–Prosser Reach, Washington.
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Send questions or comments about this report to the author, Frank D. Voss, (253) 552-1689.
For more information about USGS activities in Washington, visit the USGS Washington Water Science Center home page.
U.S. Department of the Interior | U.S. Geological Survey