Climate

An ocean-atmosphere climate simulation with an embedded cloud resolving model

  1. Cristiana Stan1,
  2. Marat Khairoutdinov2,
  3. Charlotte A. DeMott3,
  4. V. Krishnamurthy1,4,
  5. David M. Straus1,4,
  6. David A. Randall3,
  7. James L. Kinter III1,4,
  8. J. Shukla4,5

Article first published online: 5 JAN 2010

DOI: 10.1029/2009GL040822

Issue

Geophysical Research Letters

Geophysical Research Letters

Additional Information

How to Cite

Stan, C., M. Khairoutdinov, C. A. DeMott, V. Krishnamurthy, D. M. Straus, D. A. Randall, J. L. Kinter III, and J. Shukla (2010), An ocean-atmosphere climate simulation with an embedded cloud resolving model, Geophys. Res. Lett., 37, L01702, doi:10.1029/2009GL040822.

Author Information

  1. 1

    Center for Ocean-Land-Atmosphere Studies, Calverton, Maryland, USA

  2. 2

    School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, New York, USA

  3. 3

    Department of Atmospheric Science, Colorado State University, Fort Collins, Colorado, USA

  4. 4

    Department of Atmospheric, Oceanic and Earth Sciences, George Mason University, Fairfax, Virginia, USA

  5. 5

    Institute of Global Environment and Society, Calverton, Maryland, USA

Publication History

  1. Issue published online: 5 JAN 2010
  2. Article first published online: 5 JAN 2010
  3. Manuscript Accepted: 30 NOV 2009
  4. Manuscript Revised: 20 NOV 2009
  5. Manuscript Received: 4 SEP 2009

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Keywords:

  • climate modeling

[1] Mean climate and intraseasonal to interannual variability of two versions of the Community Climate System Model (CCSM) coupled atmosphere-ocean general circulation model (CGCM) are analyzed. The first version is the standard CCSM, in which cloud effects on the large-scale circulation are represented via parameterizations. The second version includes “super-parameterization” (SP) of convective processes by replacing parameterized cloud processes with a two-dimensional (2D) cloud-process resolving model (CRM) at each CGCM grid column. The SP-CCSM improves several shortcomings of the CCSM simulation, including mean precipitation patterns, equatorial SST cold tongue structure and associated double intertropical convergence zone (ITCZ), the Asian monsoon, periodicity of the El Niño–Southern Oscillation, and the intraseasonal Madden-Julian Oscillation. These improvements were obtained without the retuning of the coupled model, which is surprising in view of previous experience with other coupled models.

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