Availability of GenScn, a Tool for the Generation and Analysis of Model Simulation Scenarios for Watersheds
To: "A - Division Chief and Staff",
"B - Branch Chiefs and Offices",
"FO - State, District, Subdistrict and other Field Offices",
"PO - Project Offices",
"S - Special Distribution for Research"
cc: " WRD Archive File, ",
"Annette L Ledford, Office Automation Asst, Reston, VA "
Subject: OSW Technical Memorandum No. 99.03
Date: Tue, 26 Jan 1999 09:36:12 -0500
From: "Annette L Ledford, Office Automation Asst, Reston, VA "
In Reply Refer To:
Mail Stop 415
January 4, 1999
OFFICE OF SURFACE WATER TECHNICAL MEMORANDUM NO. 99.03
Subject: Availability of GenScn, a Tool for the Generation and Analysis
of Model Simulation Scenarios for Watersheds
The purpose of this memorandum is to announce the availability of the
GenScn program and to distribute Water Resources Investigations Report
(WRIR) 98-4134, "A Tool for the Generation and Analysis of Model
Simulation Scenarios for Watersheds (GenScn)," by John L. Kittle, Jr.,
Alan M. Lumb, Paul R. Hummel, Paul B. Duda, and Mark H. Gray. Both the
program and documentation may be downloaded from the USGS World Wide Web
site at http://water.usgs.gov/software/surface_water.html.
GenScn assists hydrologists and water managers in developing water
quantity and water quality simulations of land use alternatives,
land-management practices, river diversions, and reservoir operations.
GenScn provides a number of capabilities that assist in the modeling
process, including the creation of model input files from spatial
information and applications and the capability to view or compare the
selected time series as tables, plots, maps, and statistical summaries.
Special features of GenScn are animation of time series in longitudinal
plots and animation of user-defined critical thresholds along specific
river reaches displayed on a map.
GenScn provides a graphical user interface (GUI) that uses standard
Windows 9x/NT components built around established and adaptable
hydrologic simulation models. MapObjects LT from Environmental Systems
Research Institute, Inc. (ESRI) is used to provide mapping functionality.
GenScn fully supports the Hydrological Simulation Program--Fortran
(HSPF). HSPF is used for simulating the hydrologic and associated water
quality processes on pervious and impervious land surfaces and in streams
and well-mixed impoundments. HSPF is contained in the GenScn program and
also is available separately at the above web site. The display and
analysis tools of GenScn are also compatible with special output routines
provided in the Full Equations (FEQ) model for one-dimensional, unsteady
open-channel flow. FEQ can be used to route the flows generated by HSPF
wherever unsteady-flow simulation is required. FEQ is available
separately at the above web site.
The GenScn documentation includes a detailed tutorial for using the
program. The data used in the tutorial is included in the program
distribution. The GenScn and HSPF program documentation is included in
Windows Help format with the program distribution.
Partial funding for GenScn came from the Nevada District in support of
the Truckee-Carson Program (http://nevada.usgs.gov/tcp/), the Illinois
District, in cooperation with Dupage County, Illinois
(http://www-il.usgs.gov/proj/feq/), and the National Water-Quality
Assessment (NAWQA) Program.
For more information on GenScn or HSPF or additional copies of the
documentation, contact Kate Flynn (kmflynn, 703-648-5313). For more
information on FEQ, contact Steve Melching (csmelchi, 217-344-0037,
x-3031) or Audrey Ishii (alishii 217-344-0037, x-3026).
Training on the application of HSPF and GenScn is included in Watershed
Systems Modeling I (SW2008TC, offered annually at the National Training
Center) and in irregularly scheduled workshops sponsored by EPA and other
agencies; for more information, contact Kate Flynn. Training on FEQ may
be offered if there is enough interest; contact Steve Melching or Audrey
Ishii for more information.
See also OSW Technical Memorandum 98.03, dated February 10, 1998
Kittle, J.L., Jr., Lumb, A.M., Hummel, P.R., Duda, P.B., Gray, M.H.,
1998, A tool for the generation and analysis of model simulation
scenarios for watersheds (GenScn): U.S. Geological Survey
Water-Resources Investigations Report 98-4134, 152 p.
Bicknell, B.R., Imhoff, J.C., Kittle, J.L., Jr., Donigian, A.S., Jr., and
Johanson, R.C., 1997, Hydrological Simulation Program--Fortran: User's
manual for version 11: U.S. Environmental Protection Agency, National
Exposure Research Laboratory, Athens, Georgia, EPA/600/R-97/080, 755 p.
Franz, D.D., and Melching, C.S., Full Equations (FEQ) Model for the
Solution of the Full, Dynamic Equations of Motion for One-Dimensional
Unsteady Flow in Open Channels and Through Control Structures: U.S.
Geological Survey Water-Resources Investigations Report 96-4240, 258 P.
Thomas H. Yorke
Chief, Office of Surface Water
Distribution: A, B, FO, PO, S (Limit 1 for FO, PO, S)