A New Algorithm for Two-Way Nesting in Global Models: Principles and Applications

Maarten Krol, Wouter Peters, Patrick Berkvens, Mike Bochev

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    Abstract

    The transport and conversion of chemically active compounds in the atmosphere is mathematically described by
    ∂cs∂t+∇⋅(ucs)=V(cs)+Rs(c)
    (1.1)
    where cs are the concentrations of chemical species in the atmosphere. The first term denotes the rate of change of c s and the second term describes the transport of species by a given wind field u. The first term on the right hand side represents the sub-grid scale vertical transport that is not resolved on the grid. Finally, the last term describes the chemical reactions among the species. Usually, Eq. (1.1) is discretized in space with finite volume techniques (e.g. Zlatev 1995). The discretized equations are normally integrated forward in time using operator splitting. In this way, small time steps due to the stiff chemistry and vertical mixing operators can be avoided by applying tailored implicit schemes (Verwer et al. 1998).
    Original languageEnglish
    Title of host publicationAir Pollution Modelling and Simulation
    Subtitle of host publicationProceedings Second Conference on Air Pollution Modelling and Simulation, APMS’01 Champs-sur-Marne, April 9–12, 2001
    EditorsBruno Sportisse
    Place of PublicationBerlin
    PublisherSpringer
    Pages 225-234
    ISBN (Electronic)978-3-662-04956-3
    ISBN (Print)978-3-642-07637-4
    Publication statusPublished - 2002
    Event2nd Conference on Air Pollution Modelling and Simulation, APMS 2001 - Champs-sur-Marne, France
    Duration: 9 Apr 200112 Apr 2001
    Conference number: 2

    Conference

    Conference2nd Conference on Air Pollution Modelling and Simulation, APMS 2001
    Abbreviated titleAPMS
    CountryFrance
    CityChamps-sur-Marne
    Period9/04/0112/04/01

    Keywords

    • METIS-205899

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