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Lower Mississippi-Gulf Water Science Center - Mississippi

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Photo of Fivemile Creek.

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Low Flow Characteristics

Project Chief: John Storm
Partners: Mississippi Department of Environmental Quality (MDEQ)
Period of Project: June 2007 - present

Water resources within Mississippi are abundant but can be limited both seasonally and long-term due to extended periods of drought. Quantifying these resources can become critical when trying to strike a balance between the demand of municipal and industrial requirements and the environmental health of streams. Low-flow statistics indicate the probable availability of water in streams when supply is limited. The 7-day, 10-year (7Q10) low flow statistic is used by Federal, State, and local agencies in planning, management, and regulatory decisions.

Photo of small bridge taken while standing in dry stream bed.

Bridge over dry stream bed due to low flow conditions. -Photo by John B. Storm

The U.S. Geological Survey (USGS) in cooperation with the Mississippi Department of Environmental Quality (MDEQ) is in the process of updating the low-flow statistics at continuous and partial record streamflow locations throughout the State. Updates may include up to 533 previously published locations and other locations where data have been collected since 1991. The updated low-flow statistics will also be used to prepare regional regression equations for predicting low-flow statistics for streams in ungaged basins. All statistics and regional equations will be accessible in the StreamStats database. StreamStats is a Web-based Geographic Information System (GIS) which allows users to easily obtain streamflow statistics, drainage-basin characteristics, and other information for user-selected sites on streams.


Suggested Publications:

Water Resources Investigations Report 91-4130
Technique for estimating 7-day, 10-year low-flow characteristics for ungaged sites on streams in Mississippi, by P. A. Telis
Water-Resources Investigations Report 90-4087
Low-flow and flow-duration characteristics of Mississippi streams, by P. A. Telis

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URL: http://ms.water.usgs.gov/projects/LowFlow/index.html
Page Last Modified: Friday, 30-Jul-2010 15:46:19 EDT