PULSE: Model-Estimated Ground-Water Recharge and
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| This web site includes information about the PULSE computer program
for analyzing a streamflow record. The version at this site
will read streamflow data in the format that is available from USGS
web sites. |
| The computer model PULSE can be used to construct a hydrograph of ground-water discharge to a stream. The model is applicable to a ground-water flow system that is driven by areally uniform recharge to the water table, and in which ground water discharges to a gaining stream. One of the two formulations used by the model allows for an instantaneous recharge pulse and subsequent ground-water discharge to the stream. The other formulation, which allows for a gradual hydrologic gain or loss term in addition to the instantaneous pulse, can be used to simulate the effects of gradual recharge to the water table, ground-water evapotranspiration, or downward leakage to a deeper aquifer. |
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There are two publications which will provide valuable information
to the hydrologist who is using the PULSE program. The first
documents the theoretical basis and mathematical model. The
program user should read this report. The second report provides
additional information that may be useful to some program users.
This report shows a particular application of the program (a
forward model) for evaluating an inverse model. The second report
includes useful information about applicability of the method
and the recession index. |
| Comments about this site can be sent to Al Rutledge. |
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U.S. Department of the Interior, U.S. Geological Survey
Maintainer: Office of Ground Water Last update: 15:16:20 Thu 19 Jun 2003 Privacy Statement || Disclaimer || Accessibility URL: http://water.usgs.gov/ogw/pulse/ |
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