Scientific Investigations Report 2006–5230
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5230
Table 8. Calculated and estimated 80-, 50-, and 20-percent monthly exceedance discharge values for Morgan Creek above West Fork Morgan Creek near Challis (13299255), upper Salmon River Basin, Idaho.
[Values presented in cubic feet per second]
| July | August | September | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Q.80 | Q.50 | Q.20 | Q.80 | Q.50 | Q.20 | Q.80 | Q.50 | Q.20 | |||
| Water year 2005 | 1.43 | 5.08 | 10.7 | 0.33 | 0.55 | 0.98 | 3.47 | 5.08 | 5.62 | ||
| Regional regression equations | |||||||||||
| Upper confidence limit | 23.5 | 34.5 | 55.8 | 14.2 | 21.3 | 25.6 | 13.0 | 17.9 | 20.3 | ||
| Estimate | 10.6 | 18.8 | 35.6 | 6.77 | 9.76 | 16.0 | 6.36 | 8.52 | 13.1 | ||
| Lower confidence limit | 4.80 | 10.3 | 22.7 | 3.20 | 4.50 | 10.0 | 3.10 | 4.10 | 8.50 | ||
U.S.
Department of the Interior | U.S. Geological
Survey
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