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HYSEP: A Computer Program for Streamflow Hydrograph Separation and Analysis

Water-Resources Investigations Report 96-4040

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Abstract

HYSEP is a computer program that can be used to separate a streamflow hydrograph into base-flow and surface-runoff components. The base-flow component has traditionally been associated with ground-water discharge and the surface-runoff component with precipitation that enters the stream as overland runoff. HYSEP includes three methods of hydrograph separation that are referred to in the literature as the fixed interval, sliding-interval, and local-minimum methods. The program also describes the frequency and duration of measured streamflow and computed base flow and surface runoff. Daily mean stream discharge is used as input to the program in either an American Standard Code for Information Interchange (ASCII) or binary format. Output from the program includes table,s graphs, and data files. Graphical output may be plotted on the computer screen or output to a printer, plotter, or metafile.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
HYSEP: A Computer Program for Streamflow Hydrograph Separation and Analysis
Series title:
Water-Resources Investigations Report
Series number:
96-4040
Edition:
-
Year Published:
1996
Language:
ENGLISH
Publisher:
Geological Survey (U.S.)
Contributing office(s):
U.S. Geological Survey
Description:
v, 46 p.