D.D. Harris 1968 <p>The mass transfer-water budget method of computing reservoir evaporation was tested on Warm Springs Reservoir, whose contents and surface area change greatly from early spring to late summer. The mass-transfer coefficient computed for the reservoir is two to three times greater than expected and results in a computed evaporation much greater than that from a land pan. Because of the remoteness of the area, the recommended study technique was modified, which could have reduced the accuracy of the results.</p> application/pdf 10.3133/70173588 en U.S. Geological Survey Evaporation study at Warm Springs Reservoir, Oregon reports