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<br />e <br /> <br />These profi 1 es will be anal yzed and compared with the prec:i pitat ion <br />record at the CSSL (Central Sierra Snm~ Laboratoy'y) to develop a formula <br />for later use in operational and ecological mon'itoring and research on <br />the effect of weather modification in the American River Basin. <br /> <br />Work will continue this season on monitoring and eva1uationlJOdels to <br />estimate snow water content and snowpack conditions at various eleva- <br />tions for a winter orographic cloud seeding project. A model will also <br />be developed to estimate, after seediing, what the condition of Basin <br />snowpacks wo.u1 d have been had no seedi ng occurred. <br /> <br />2. Baseline Water Quality Monitoring <br /> <br />e <br /> <br />A water qual ity monitori ng program will be imp1 emented by the SCPP. <br />Cooperative arrangements have been made with the Bureau's Mid-Pacific' <br />Region and the U.S. Geological Survey to collect monthly samples frOOl <br />sites in the project area. There are eight sites in the American River <br />Basin, one in the Yuba Basin, and probably three in the Tahoe Basin. <br />Samples will be analyzed for silver, cesium, nitrogen, phosphorus, <br />aluminum, and total dissolved solids. Samples will be taken monthly <br />starting in October or November and continue until July 1984. <br /> <br />3. Mountain Hemlock and Subalpine Meadows Monitoring <br /> <br />e <br /> <br />A study of snow/forest interaction will be continued as part of the SEP. <br />The U.S. Forest Service, in cooperation with the University of Nevada, <br />is establising or installing seven monitoring sites across the American <br />River Basin, Lake Tahoe Basin, and Carson Range to closely observe <br />certain forest species over the course of the SCPP experiments. <br /> <br />1-27 <br />