Table of Contents - Temperatures of springs at Crater Lake

Table 1. Mean annual temperatures from weather stations in the vicinity of Crater Lake

Table 2. Ground temperatures for drill holes in the vicinity of Crater Lake obtained by projecting temperature versus depth to the surface.

Table 3. Data for springs in the vicinity of Crater Lake obtained 18-28 August 1989.

Table 4. Calculation of chloride flux from the springs of the Wood River group.

Figure 1. Map of southern Oregon showing locations of weather stations, drill holes used to determine average ground temperatures, and outline of map of Figure 3.

Figure 2. Mean annual air temperatures and average ground temperatures versus elevation for locations given in Figure 1.

Figure 3. Map of Crater Lake and vicinity showing spring locations with special symbols for the Wood River group (diamonds) and the Cedar Spring group (triangles).

Figure 4. Elevation versus temperature for springs in the vicinity of Crater Lake. Broken line shows water temperature versus elevation for Crater Lake for 19 June 1971 from data of Neal and others (1972).

Figure 5. Specific conductance versus temperature for springs in the vicinity of Crater Lake. Line was fitted by eye to show trend.

Figure 6. Elevation versus specific conductance for springs in the vicinity of Crater Lake.