Focus on deep and shallow convection, and turbulence - cmmap

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Randall, D. A., Q. Shao, and C.-H. Moeng 1992: A Second-Order Bulk Boundary-Layer Model. J. Atmos. Sci., 49, 1903-1923. Lappen, C.-L, and D. A. Randall, 2001: Towards a unified parameterization of the boundary layer and moist convection. Part I. A new type of mass-flux model. J. Atmos. Sci., 58, 2021-2036. These papers show that: • Mass flux methods can be married with higher-order closure. • With this approach, the triple-moment terms of the second moment equations can either advect or diffuse, depending on the regime.
Proposed Evaluation Methods •Benchmark simulations •Large-domain LES (e.g., 100 km x 100 km domain, 0.1 km grid size) •Compare to DCRM results using various SGS parameterizations. •Compare to SCM results. •Analyze results to gain insight into scale interactions, etc.
Page 1 and 2: Focus on deep and
Page 3 and 4: from Arakawa and Jung (2003)
Page 5 and 6: Boundary layers in deep precipitati
Page 7 and 8: Outline of this talk •Introductio
Page 9 and 10: Science Issues Representation of th
Page 11 and 12: Boundary-layer Clouds in a Multisca
Page 13: Continental shallow cumuli (ARM) LE
Page 17 and 18: Grid-size dependence in a large dom
Page 19 and 20: 500 m
Page 21 and 22: 2000 m
Page 23 and 24: 100 m
Page 25 and 26: 1000 m
Page 27 and 28: 4000 m
Page 29 and 30: Avg’d to 500 m log 10 of Liquid W
Page 31 and 32: 1000 m log 10 of Liquid Water Path
Page 33 and 34: last 6 hrs 100 m 500 m 1000 m 2000
Page 35 and 36: 5000 4500 4000 Cloud Water Mixing R
Page 37: Proposed Evaluation Methods •Obse

Focus on deep and shallow convection, and turbulence - cmmap

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