User:Milton Beychok/Sandbox: Difference between revisions
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The model is capable of simulating [[Air pollution dispersion terminology|passive or buoyant]] continuous plumes as well as short duration [[Air pollution dispersion terminology|puff]] releases. It characterizes the [[Air pollution dispersion terminology|atmospheric turbulence]] by two parameters, the [[boundary layer]] depth and the [[Monin-Obukhov length]], rather the single parameter [[Air pollution dispersion terminology|Pasquill class]]. <ref name=CERC/> | The model is capable of simulating [[Air pollution dispersion terminology|passive or buoyant]] continuous plumes as well as short duration [[Air pollution dispersion terminology|puff]] releases. It characterizes the [[Air pollution dispersion terminology|atmospheric turbulence]] by two parameters, the [[boundary layer]] depth and the [[Monin-Obukhov length]], rather the single parameter [[Air pollution dispersion terminology|Pasquill class]]. <ref name=CERC/> | ||
ADMS | ADMS can model up to 300 [[emission]] sources, of which: <ref name=CERC/> | ||
* up to | * up to 300 may be point or jet sources | ||
* up to | * up to 30 line sources, 30 area sources and 30 volume sources, may be modelled simultaneously | ||
The performance of the model has been | The performance of the model has been validated against more than 15 measured dispersion data sets.<ref>[http://www.cerc.co.uk/software/publications.htm Documentation: Validation papers]</ref> | ||
==Users of the ADMS 3== | ==Users of the ADMS 3== | ||
Revision as of 14:52, 7 July 2009
The ADMS (Atmospheric Dispersion Modelling System) is an advanced air pollution dispersion model for calculating the concentrations of air pollutants emitted both continuously from point, line, volume and area sources, or intermittently from point sources.[1][2] It was developed by Cambridge Environmental Research Consultants (CERC) of the United Kingdom (UK) in collaboration with the UK's Met Office, National Power plc[3] and the University of Surrey. The first version of ADMS was released in 1993 and the current version 4 was released in 2007.[1]
ADMS is used to model the environmental impact of existing or proposed industrial facilities. It can also be used to assess air quality with respect to the air quality standards such as the European Union Air Quality Directive,[4] the UK Air Quality Strategy,[5] the U.S. National Ambient Air Quality Standards (NAAQS) and the World Health Organization (WHO) Air Quality Guidelines.[6]
Features and capabilities
The model includes algorithms which take into account: downwash effects of nearby buildings within the path of the dispersing pollution plume; effects of complex terrain; effects of coastline locations; wet deposition, gravitational settling and dry deposition; short term fluctuations in pollutant concentration; chemical reactions; radioactive decay and gamma-dose; pollution plume rise as a function of distance; jets and directional releases; averaging time ranging from very short to annual; and condensed plume visibility. The system also includes a meteorological data input preprocessor. [1]
The model is capable of simulating passive or buoyant continuous plumes as well as short duration puff releases. It characterizes the atmospheric turbulence by two parameters, the boundary layer depth and the Monin-Obukhov length, rather the single parameter Pasquill class. [1]
ADMS can model up to 300 emission sources, of which: [1]
- up to 300 may be point or jet sources
- up to 30 line sources, 30 area sources and 30 volume sources, may be modelled simultaneously
The performance of the model has been validated against more than 15 measured dispersion data sets.[7]
Users of the ADMS 3
The users of ADMS 3 include:
- Governmental regulatory authorities including the UK Health and Safety Executive (HSE)
- Environment Agency of England and Wales
- Over 130 individual company licence holders in the UK
- Scottish Environment Protection Agency (SEPA) in Scotland
- Northern Ireland Environment Agency
- Governmental organizations including the Food Standards Agency (UK)
- Users in other European countries, Asia, Australia and the Middle East
- Accepted by the US Environmental Protection Agency as an "Alternative" model
References
- ↑ 1.0 1.1 1.2 1.3 1.4 The CERC web site pages about ADMS
- ↑ US Environmental Protection Agency "SCRAM" website
- ↑ Now INNOGY Holdings plc
- ↑ New Air Quality Directive From the European Union's website
- ↑ Air Quality Strategy from the website of the UK's Department for Environment, Food and Rural Affairs
- ↑ Air Quality Guidelines From the website of the World Health Organization
- ↑ Documentation: Validation papers
External links
- Model Documentation System (Topic Centre of European Environment Agency)