Scientific Investigations Report 2007–5205
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5205
Table 7. Potential range in estimates of runoff and ground-water inflow to basin-fill aquifers of Carson Valley from ephemeral watersheds of the Carson Range, Nevada and California.
[Values in inches are volumes in acre-feet, divided by watershed area, in acres, multiplied by 12. Simulated mean annual runoff: Values may not match presented values due to rounding. Simulated mean annual ground-water inflow: Ground-water inflow defined as ground-water inflow to basin-fill sediments of Carson Valley. Abbreviations: acre-ft, acre-feet; in., inch]
| Watershed and index model | Drainage area (acres, rounded) |
Simulated mean annual | ||||
|---|---|---|---|---|---|---|
| Runoff | Ground-water inflow | |||||
| (acre-ft) | (in.) | (acre-ft) | (in.) | |||
| All ephemeral watersheds1 | 14,300 | 9,900 | 28.3 | 3,500 | 22.9 | |
| Ephemeral watersheds using Fredericksburg Canyon index model1 | 7,900 | 6,900 | 210.5 | 200 | 20.3 | |
| Ephemeral watersheds using Daggett Creek index model1 | 6,400 | 3,100 | 25.8 | 3,300 | 26.2 | |
| All ephemeral watersheds using unit-area rates for Fredericksburg Canyon index watersheds | 14,300 | 312,500 | 10.5 | 3 400 | 0.3 | |
| All ephemeral watersheds using unit-area rates for Daggett Creek index watersheds | 14,300 | 46,900 | 5.8 | 47,400 | 6.2 | |
1From table 5.
2Unit-area runoff and ground-water inflow, calculated by dividing runoff or ground-water inflow, in acre-feet, by drainage area, in acres, and multiplying by 12.
3Calculated by dividing unit-area runoff and ground-water inflow for ephemeral watershed models using Fredericksburg canyon index model by 12, and multiplying by drainage area, in acres.
4Calculated from unit-area runoff and ground-water inflow for ephemeral watershed models using Daggett Creek index model by 12, and multiplying by drainage area, in acres.
U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/sir/2007/5205
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