Surface-water quality and flow Modeling Interest Group
A program to calculate time-varying streamflow depletion caused by a pumped well.
STRMDEPL is a FORTRAN program developed by Barlow (2000) to calculate time-varying streamflow depletion caused by a pumped well. STRMDEPL is based on two analytical solutions that solve equations for ground-water flow to a well completed in a semi-infinite, homogeneous, and isotropic aquifer in direct hydraulic connection to a fully penetrating stream. One analytical method calculates unimpeded flow at the stream-aquifer boundary and the other method calculates the resistance to flow caused by semipervious streambed and streambank material. The principle of superposition is used with these analytical equations to calculate time-varying streamflow depletions due to daily pumping.
Although STRMDEPL can be run independently, an extension was developed to run this program in tandem with the precipitation-runoff model HSPF, through the GenScn interface. The HSPF model can readily incorporate streamflow depletions caused by a well or surface-water withdrawal, or by multiple wells or surface-water withdrawals, or both, as a combined time-varying outflow demand from affected channel reaches. GenScn is a scenario generator and graphical user interface developed for use with the HSPF model. This extension requires that actual pumping rates for each well be stored in a unique WDM dataset identified by an attribute that associates each well with the model reach from which water is withdrawn. Other attributes identify the type and characteristics of the data. The interface allows users to easily add new pumping wells, delete exiting pumping wells, or change properties of the simulated aquifer or well. Development of this application enhances the ability of the HSPF model to simulate complex water-use conditions.
STRMDEPL is available from this web site:
strmdepl.for (source code, 22 Kbytes)
strmdepl.exe (compiled program, 77 Kbytes)
The executable program was compiled under Windows 2000 using a Lahey 95 compiler; as such, it should run on most Windows machines. The core STRMDEPL program is written in standard F77, but modifications to run the program within the GenScn interface use a Lahey dependent call (GETCL). This will cause a compile error if different compiler is used to create an executable program.
No warranty, expressed or implied, is made by the U.S. Geological Survey (USGS) as to the accuracy and functioning of the STRMDEPL program and related program material, nor shall the fact of distribution constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith.
The STRMDEPL executable file is required to run the STRMDEPL extension within the GenScn GUI. A path to this file must be specified in the station file (xxxxx.sta) used to setup GenScn. The following line should be added to the xxx.sta file:
EXE 'STRMDEPL','PATH\strmdepl.exe'
where PATH specifies the location of the STRMDEPL executable. In the example below, the executable is in the C Drive under WRDapp\GenScn12b7
EXE 'STRMDEPL','C:\WRDapp\GenScn12b7\strmdepl.exe'
The STRMDEPL extension can then be accessed from the Analysis menu in GenScn.
NOTE:
Aqua Terra has modified the internal handling of timeseries in GenScn since the interface was developed in version 1.2b7. These changes are not compatible with running STRMDEPL through later versions (2.1 or later) of the GenScn interface (note, only v1.2b7 has been tested, however). STRMDEPL can be run as a stand alone program regardless of the version of GenScn installed. If STRMDEPL is run in GenScn v2.1 or later the program will crash. Users wishing to run STRMDEPL through the GenScn interface can uninstall GenScn and reinstall v1.2b7.
If a newer version of GenScn is installed, the following
files can be kept when uninstalling the program:
SCRRUN.DLL
EXPSVR.DLL
COMCTL32.DOCX
MSCOMCTL.OCX
TABCTL32.OCX
The following installation errors can be ignored:
STRMDEPL is fully documented by Paul Barlow in:
Standard technical support is not offered for this program, and no support is available if the program is modified. Questions about the program or its use may be directed to:
Paul M. Barlow
U.S. Geological Survey
10 Bearfoot Road
Northborough, MA 01532
Internet: pbarlow@usgs.gov
Phone: (508) 490-5070
FAX: (508) 490-5068
or
Phillip J. Zarriello
U.S. Geological Survey
10 Bearfoot Road
Northborough, MA 01532
Internet: pzarriel@usgs.gov
Phone: (508) 490-5010
FAX: (508) 490-5068
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