Development and Application of a Global to Local Model Hierarchy for the Determination of Chemical Processes in the Troposphere

  • Bärbel Langmann
  • Daniela Jacob
  • Ralf Podzun
Part of the NATO • Challenges of Modern Society book series (NATS, volume 22)

Abstract

Computational resources usually limit the application of three-dimensional models for climate simulation as well as simulation of transport, chemical transformation and deposition of atmospheric gases and particles with respect to horizontal resolution. But many features contributing to regional climate patterns and processes involved in the transformation of atmospheric pollutants occur on spatial scales which cannot be resolved by current global or even regional models. One approach to regionalize coarse grid numerical results is the so called ‘nesting’ technique: large scale phenomena are simulated by coarse grid models and the results are used to provide boundary conditions for a high resolution mesoscale model simulation over the region of interest. Computational resources thus permit a higher resolution for the limited area model and, therefore, a more accurate description of topographie and turbulent processes in the planetary boundary layer. A first development and application of the nesting procedure to climate simulation is described in Dickinson et al. (1989), a first nested grid mesoscale atmospheric chemistry model has been presented by Pleim et al. (1991).

Keywords

Regional Climate Model Horizontal Resolution Horizontal Grid Spacing Surface Ozone Concentration Rhine Valley 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • Bärbel Langmann
    • 1
  • Daniela Jacob
    • 1
  • Ralf Podzun
    • 2
  1. 1.Max-Planck-Institut für MeteorologieHamburgGermany
  2. 2.Deutsches KlimarechenzentrumHamburgGermany

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