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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
By:
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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.

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Additional Publication Details

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
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