SLAB View™

Emergency Release Dense Gas Model

Technical Specifications

SLAB View is an interface for the SLAB model. See below the technical specifications for this model:

Parameter

Description

Model Name

SLAB - An Atmospheric Dispersion Model for Denser-Than-Air Releases

Model Guide

SLAB Model User's Guide

Developed By

Dr. Donald L. Ermak, Lawrence Livermore National Laboratory (LLNL)

Model Type

Steady-state Gaussian Plume model

Time Step

Seconds

Range

Near Field

Terrain

Not modeled

Building Downwash

Not modeled

Source Types

Evaporating pool, horizontal jet, vertical jet or stack, instantaneous or short duration evaporating pool 

Input Meteorology

User defined meteorological conditions

Wind Field

Homogeneous

Release Types

Denser than air plumes

Emission Types

Emergency release, continuous and transient emissions

Atmospheric Chemistry

Not modeled

Output

SLAB produces outputs of chemical concentrations at
various positions downwind and at specified heights above the ground

Regulatory Status

US EPA Alternative Model

System Requirements

This product is a Microsoft Windows-based program that can be installed in the following Windows operating systems:

  • 32-Bit Operating Systems
  • Microsoft Windows Vista (Business and Ultimate Versions)
  • Microsoft Windows XP Professional (Service Pack 3)

Minimum requirements:

  • An Intel Pentium 4 processor (or equivalent) or higher
  • At least 2 GB of available hard disk space
  • 1 GB of RAM (2 GB recommended)