A Zooming Technique for Wind Transport of Air Pollution

P.J.F. Berkvens, M.A. Botchev, W.M. Lioen, J.G. Verwer

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    In air pollution dispersion models, typically systems of millions of equations that describe wind transport, chemistry and vertical mixing have to be integrated in time. To have more accurate results over specific fixed areas of interest---usually highly polluted areas with intensive emissions---a local grid refinement or zoom is often required. For the wind transport part of the models, i.e.\ for finite volume discretizations of the transport equation, we propose a zoom technique that is positive, mass-conservative and allows to use smaller time steps as enforced by the CFL restriction in the zoom regions only.
    Original languageEnglish
    Place of PublicationAmsterdam
    PublisherCentrum voor Wiskunde en Informatica
    Number of pages31
    Publication statusPublished - Aug 1999

    Publication series

    NameReport MAS
    PublisherCentrum voor Wiskunde en Informatika
    ISSN (Print)1386-3703


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