User:Milton Beychok/Sandbox2: Difference between revisions

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{{Image|Crude oil-fired power plant.jpg|right|200px|An air pollution source.}}
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'''DISPERSION21''' (also called '''DISPERSION 2.1''') is a local scale [[Air pollution dispersion modeling|air pollution dispersion model]]<ref name=Turner/><ref name=Schnelle/><ref name=Beychok/> developed by the air quality research unit at [[SMHI]], the ''Swedish Meteorological and Hydrological Institute'', located in [[Norrköping]].<ref name=SMHI-Staff/>
 
The model is widely used in Sweden by local and regional environmental agencies, various industrial users, consultant services offered by SMHI and for educational purposes.
 
==Model description==
 
DISPERSION21 is intended as a tool for calculating air pollutant concentrations originating from industrial or urban air pollutant sources. The model is used in studies to evaluate effects on air quality from existing or planned sources. It is a local-scale [[Air pollution dispersion terminology|Gaussian model]] including [[Air pollution dispersion terminology|plume rise]] and [[Air pollution dispersion terminology|building wake effects]]. A street canyon component with NOx-chemistry is included.<ref name=MDS/>
 
Some of the specific features and capabilities of DISPLAY21 are: <ref name=MDS/>
 
*Source types: Multiple [[Air pollution dispersion terminology|point, area , and volume]] sources as well as street canyons.
*Source releases: [[Air pollution dispersion terminology|Surface, near surface and elevated sources]].
*Source locations: [[Air pollution dispersion terminology|Urban or rural locations]].
*Plume types: [[Air pollution dispersion terminology|Continuous or intermittent]] [[Air pollution dispersion terminology|buoyant plumes]]
*[[Atmospheric dispersion modeling|Plume dispersion]] treatment: [[Air pollution dispersion terminology|Gaussian model]] treatment using [[Green's function]]s and includes multiple reflections.
*Terrain types: Simple terrain with no more than 10 degree slopes.
*Building effects: [[Air pollution dispersion terminology|Building downwash]] algorithms are included.
*[[Meteorology|Meteorological]] data: The model includes a preprocessor to produce the meteorological parameters needed to characterize the atmospheric turbulence as well as to produce wind speed and direction profiles.
* The street canyon module includes some [[atmospheric chemistry]] for [[photochemistry|photochemical]] reactions.
 
==References==
{{reflist|refs=
 
<ref name=Turner>{{cite book|author=D.B. Turner|title=[[Workbook of Atmospheric Dispersion Estimates]]| edition=2nd Edition|publisher=CRC Press|year=1994|id=ISBN 1-56670-023-X}} [http://www.crcpress.com/shopping_cart/products/product_detail.asp?sku=L1023&parent_id=&pc= www.crcpress.com]</ref>
 
<ref name=Beychok>{{cite book|author=Beychok, Milton R.|title=[[Fundamentals of Stack Gas Dispersion]]|edition=4th Edition|publisher=author-published|year=2005|id=ISBN 0-9644588-0-2}} [http://www.air-dispersion.com www.air-dispersion.com]</ref>
 
<ref name=Schnelle>{{cite book|author=Karl B. Schnelle and Partha R. Dey|title=Atmospheric Dispersion Modeling Compliance Guide|edition=1st Edition|publisher=McGraw-Hill Professional|year=2000|id=ISBN 0-07-058059-6}} Available online at [http://books.google.com/books?hl=en&lr=&id=Rk-2uhU7JqAC&oi=fnd&pg=PR11&dq=%22Atmospheric+Dispersion+Modeling+Compliance+Guide%22&ots=YS04AwZvET&sig=skDic1BfISl_v4IMLaoVE3eR1QA#v=onepage&q&f=false Google Books]</ref>
 
<ref name=SMHI-Staff>[http://www.smhi.se/en/Research/Research-departments/Air-quality/contact-us-air-quality-research-1.5419 Air Quality Research staff and contacts] From the SMHI website</ref>
 
<ref name=MDS>[http://acm.eionet.europa.eu/databases/MDS/index_html MDS - Model Documentation System] From the website of the European Environment Information and Observation Network (EIONET)</ref>
}}

Latest revision as of 04:25, 22 November 2023


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