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SHORTZ: Short Term Dispersion Model

The air quality model SHORTZ uses a simple gaussian plume formulation to evaluate ground level concentrations due to up to 300 point and area sources in urban and rural areas with flat or complex terrain conditions. It may include sedimentation and works on short time intervals (1, 2, 3 hours).


area: air quality
objectives: simulation
description: gaussian plume, multiple point sources, multiple area sources, generic complex terrain, urban sites, rural environment, short term, inactive pollutant, deposition


You can download the software from
EPA - SCRAM Models

or directly: http://www.epa.gov/scram001/models/screen/shortz.zip(IBM 3090 Mainframe Version, 79KB, ZIP)

The model is part of UNAMAP and is available on diskette from:
Computer Products
National Technical Information Service
U. S. Department of Commerce
Springfield, Virginia 22161
Phone (703) 487-4650


Jay R. Bjorklund and James F. Bowers
H. E. Cramer Company
P.O. Box 8049
Salt Lake City, Utah 84108


  • J.R.Bjorklund and J.F.Bowers, 1982. USER'S INSTRUCTIONS FOR THE SHORTZ AND LONGZ COMPUTER PROGRAMS, EPA Publication No. EPA-903/9-82-004 a, b. U.S. Environmental Protection Agency, Region III, Philadelphia, PA.
  • EPA-450/2-78-027R, 1982. GUIDELINE ON AIR QUALITY MODELS, U.S. Environmental Protection Agency.


  • J.R.Bjorklund and J.F.Bowers, 1982. "User's Instructions for the SHORTZ and LONGZ computer Programs", Volume I and II. EPA-903/9-82-004, U.S.
  • D.Wackter and R.Londergan, 1984. "Evaluation of Complex Terrain Air Quality Simulation Models", EPA-450/4-84-017.



Estratto dalla banca modelli del progetto CEE GAIA INCO - www.ess.co.at/GAIA