Technique for estimation of streamflow statistics in mineral areas of interest in Afghanistan
Open-File Report
2011-1176
Prepared in cooperation with the Afghanistan Geological Survey, Ministry of Mines under the auspices of the Task Force for Business and Stability Operations, Department of Defense
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Abstract
A technique for estimating streamflow statistics at ungaged stream sites in areas of mineral interest in Afghanistan using drainage-area-ratio relations of historical streamflow data was developed and is documented in this report. The technique can be used to estimate the following streamflow statistics at ungaged sites: (1) 7-day low flow with a 10-year recurrence interval, (2) 7-day low flow with a 2-year recurrence interval, (3) daily mean streamflow exceeded 90 percent of the time, (4) daily mean streamflow exceeded 80 percent of the time, (5) mean monthly streamflow for each month of the year, (6) mean annual streamflow, and (7) minimum monthly streamflow for each month of the year. Because they are based on limited historical data, the estimates of streamflow statistics at ungaged sites are considered preliminary.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Technique for estimation of streamflow statistics in mineral areas of interest in Afghanistan |
| Series title | Open-File Report |
| Series number | 2011-1176 |
| DOI | 10.3133/ofr20111176 |
| Year Published | 2011 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | New Hampshire-Vermont Water Science Center |
| Description | iv, 17 p. |
| Country | Afghanistan |
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