Focus on deep and shallow convection, and turbulence - cmmap

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Boundary layer clouds in deep-convection-resolving models (DCRMs) • DCRMs are CRMs with horizontal grid sizes of 4 km or more. • Used in MMF, GCRMs (global CRMs), and tropical cyclone models. • In MMF and GCRMs, DCRMs are expected to represent all types of cloud systems. • However, many cloud-scale circulations are not resolved by DCRMs. • Representations of SGS circulations currently used in DCRMs can be improved.
Boundary layers in deep precipitating convective cloud systems • Tropical convective cloud systems may organize too readily in the FRCGC GCRM and in MMF GCMs. • Possible causes: • Convectively-generated cold pools are too strong. • Boundary layer stabilization due to shallow convection is under-estimated. • Poor horizontal resolution may contribute to both.
Page 1 and 2: Focus on deep and
Page 3: from Arakawa and Jung (2003)
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 and 14: Continental shallow cumuli (ARM) LE
Page 15 and 16: Proposed Evaluation Methods •Benc
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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