controls the dispersion model AUSTAL2000 of the Technical Instruction on Air Quality Control, helping the user in the project work for impact statements by interactive data entry and result visualisation as maps.

AUSTAL2000 is the official dispersion model for permitting procedures of technical plants in Germany. It was developed on behalf of the Federal Environment Agency and provided for free use under GNU license.

AUSTAL View is an ergonomic-intuitive graphical user interface operating under Windows NT/2000/XP.


calculates the dispersion of odorous compounds based on the model AUSTAL2000 (meteorological time series) with selectable peak-to-mean factors, e.g. accounting for on-site sampling. ODOR View is thus applicable to situations where a Gaussian statistical/ climatological model cannot be used or only with strong limitations, e.g. :
– odor emissions variable in time
– low level sources
– areas near the source
– complex terrain
– building effects


comprises of various meteorological data products:

– AKT: annual time series of meteorological dispersion conditions, hourly resolved with wind direction, wind velocity and turbulence class
– AKS: statistics of time series AKT over 5 to 10 years
– ASW: statistics of time series for wind direction and wind velocity over 1 or more years containing mean velocities for each sector and 95-percentile values

AKT and AKS are input data for the dispersion model AUSTAL2000.


are two data products:

– BLN: building blocks from stereographic aerial photos, compiled for direct use in

– XYZ: terrain elevation files as input for AUSTAL/ODOR View in case of complex terrain as
base for the wind field modelling with TALdia


is a emergency release dense gas model, a sophisticated tool to predict hazardous zone and potential impacts of accidental releases. It is ideal to analyze emissions from accidental releases of toxic gases.

SLAB View can model continuous, finite duration, and instantaneous releases from four types of sources:

– a ground-level evaporating pool
– an elevated horizontal jet
– a stack or elevated vertical jet
– a ground-based instantaneous release