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Single-Column Model Intercomparison for a Stably Stratified Atmospheric Boundary Layer

  • J. Cuxart
  • , A.A.M. Holtslag
  • , R.J. Beare
  • , E. Bazile
  • , A. Beljaars
  • , A. Cheng
  • , L. Conangla
  • , M.B. Ek
  • , F. Freedman
  • , R. Hamdi
  • , A. Kerstein
  • , H. Kitagawa
  • , G. Lenderink
  • , D. Lewellen
  • , J. Mailhot
  • , T. Mauritsen
  • , V. Perov
  • , G. Schayes
  • , G.J. Steeneveld
  • , G. Svensson
  • P. Taylor, W. Weng, S. Wunsch, K.M. Xu

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The parameterization of the stably stratified atmospheric boundary layer is a difficult issue, having a significant impact on medium-range weather forecasts and climate integrations. To pursue this further, a moderately stratified Arctic case is simulated by nineteen single-column turbulence schemes. Statistics from a large-eddy simulation intercomparison made for the same case by eleven different models are used as a guiding reference. The single-column parameterizations include research and operational schemes from major forecast and climate research centres. Results from first-order schemes, a large number of turbulence kinetic energy closures, and other models were used. There is a large spread in the results; in general, the operational schemes mix over a deeper layer than the research schemes, and the turbulence kinetic energy and other higher-order closures give results closer to the statistics obtained from the large-eddy simulations. The sensitivities of the schemes to the parameters of their turbulence closures are partially explored
Original languageEnglish
Pages (from-to)273-303
Number of pages31
JournalBoundary-Layer Meteorology
Volume118
Issue number2
DOIs
Publication statusPublished - 2006

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 13 - Climate Action
    SDG 13 Climate Action

Keywords

  • turbulence closure-model
  • large-eddy simulation
  • part i
  • scheme
  • parameterization
  • formulation
  • diffusion
  • dynamics
  • surfaces
  • system

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