Scientific Investigations Report 2006–5274
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5274
Table 6. Annual mean and April-July mean estimated and unregulated streamflows for Salmon Creek at Conconully Dam for the driest 4 water years and wettest 4 water years, 1950-89, and the percentage of error and the absolute error for the model simulations.
[UUS, uncorrected unregulated streamflow; CUS, corrected unregulated streamflow; percentage of error = 100 x (simulated – estimated)/estimated; ft3/s, cubic foot per second; in/yr, inch per year]
| Time period | Mean simulated basinwide precipitation |
Mean estimated | Mean simulated unregulated streamflow (ft3/s) |
Percentage of error with respect to |
Absolute error with respect to |
||||
|---|---|---|---|---|---|---|---|---|---|
| (in/yr) | (ft3/s) | UUS (ft3/s) |
CUS (ft3/s) |
UUS | CUS | UUS (ft3/s) |
CUS (ft3/s) |
||
| Driest 4 water years, 1950-89 | |||||||||
| Water year 1979 | 11.8 | 132.1 | 7.7 | 10.7 | 4.4 | -42.9 | -58.9 | -3.3 | -6.3 |
| April-July, 1979 | 12.4 | 16.6 | 3.2 | -74.2 | -80.7 | -9.2 | -13.4 | ||
| Water year 1977 | 12.0 | 134.4 | 6.4 | 9.3 | 1.2 | -81.3 | -87.1 | -5.2 | -8.1 |
| April-July, 1977 | 10.3 | 14.6 | 2.6 | -74.8 | -82.2 | -7.7 | -12.0 | ||
| Water year 1964 | 14.6 | 163.5 | 17.1 | 20.0 | 9.1 | -46.8 | -54.5 | -8.0 | -10.9 |
| April-July, 1964 | 34.3 | 38.5 | 20.7 | -39.7 | -46.2 | -13.6 | -17.8 | ||
| Water year 1985 | 15.0 | 168.0 | 7.9 | 10.9 | 14.3 | 81.0 | 31.2 | 6.4 | 3.4 |
| April-July, 1985 | 13.2 | 17.5 | 21.7 | 64.4 | 24.0 | 8.5 | 4.2 | ||
| Wettest 4 water years, 1950-89 | |||||||||
| Water year 1971 | 31.7 | 355.0 | 33.4 | 36.4 | 63.0 | 88.6 | 73.1 | 29.6 | 26.6 |
| April-July, 1971 | 93.8 | 98.0 | 172.1 | 83.5 | 75.6 | 78.3 | 74.1 | ||
| Water year 1951 | 32.5 | 364.0 | 59.3 | 62.2 | 56.5 | -4.7 | -9.2 | -2.8 | -5.7 |
| April-July, 1951 | 151.7 | 155.9 | 131.9 | -13.1 | -15.4 | -19.8 | -24.0 | ||
| Water year 1982 | 34.9 | 390.8 | 66.6 | 69.5 | 79.9 | 20.0 | 15.0 | 13.3 | 10.4 |
| April-July, 1982 | 165.3 | 169.5 | 180.8 | 9.4 | 6.7 | 15.5 | 11.3 | ||
| Water year 1983 | 41.3 | 462.5 | 90.9 | 93.8 | 110.1 | 21.1 | 17.4 | 19.2 | 16.3 |
| April-July, 1983 | 233.1 | 237.3 | 269.7 | 15.7 | 13.7 | 36.6 | 32.4 | ||
U.S.
Department of the Interior | U.S. Geological
Survey
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