Coupling Cloud Processes with the Large-Scale Dynamics Using the Cloud-Resolving Convection Parameterization (CRCP)

Abstract A formal approach is presented to couple small-scale processes associated with atmospheric moist convection with the large-scale dynamics. The approach involves applying a two-dimensional cloud-resolving model in each column of a three-dimensional large-scale model. In the spirit of classical convection parameterization, which assumes scale separation between convection and the large-scale flow, the cloud-resolving models from neighboring columns interact only through the large-scale dynamics. This approach is referred to as Cloud-Resolving Convection Parameterization (CRCP). In short, CRCP involves many two-dimensional cloud-resolving models interacting in a manner consistent with the large-scale dynamics. The approach is first applied to the idealized problem of a convective–radiative equilibrium of a two-dimensional nonrotating atmosphere in the presence of SST gradients. This simple dynamical setup allows comparison of CRCP simulations with the cloud-resolving model results. In these tests, t...

[1]  Adrian M. Tompkins,et al.  Organization of Tropical Convection in Low Vertical Wind Shears: The Role of Water Vapor , 2001 .

[2]  L. Margolin,et al.  A Class of Nonhydrostatic Global Models. , 2001 .

[3]  W. Grabowski,et al.  Cloud Resolving Modeling of Tropical Circulations Driven by Large-Scale SST Gradients , 2000 .

[4]  Peter J. Webster,et al.  Large-Scale Dynamical Fields Associated with Convectively Coupled Equatorial Waves , 2000 .

[5]  W. Collins,et al.  Long-Term Behavior of Cloud Systems in TOGA COARE and Their Interactions with Radiative and Surface Processes. Part II: Effects of Ice Microphysics on Cloud–Radiation Interaction , 1999 .

[6]  L. Margolin,et al.  Large-eddy simulations of convective boundary layers using nonoscillatory differencing , 1999 .

[7]  Piotr K. Smolarkiewicz,et al.  CRCP: a cloud resolving convection parameterization for modeling the tropical convecting atmosphere , 1999 .

[8]  K. Oouchi.  Hierarchical Organization of Super Cloud Cluster Caused by WISHE, Convectively Induced Gravity Waves , 1999 .

[9]  Shuyi S. Chen,et al.  Three-Dimensional Week-Long Simulations of TOGA COARE Convective Systems Using the MM5 Mesoscale Model , 1999 .

[10]  Matthew C. Wheeler,et al.  Convectively Coupled Equatorial Waves: Analysis of Clouds and Temperature in the Wavenumber–Frequency Domain , 1999 .

[11]  W. Grabowski.  Toward Cloud Resolving Modeling of Large-Scale Tropical Circulations: A Simple Cloud Microphysics Parameterization , 1998 .

[12]  Wojciech W. Grabowski,et al.  Cloud-resolving modeling of cloud systems during Phase III of GATE. Part II: Effects of resolution and the third spatial dimension , 1998 .

[13]  Xiaoqing Wu,et al.  Long-Term Behavior of Cloud Systems in TOGA COARE and Their Interactions with Radiative and Surface Processes. Part I: Two-Dimensional Modeling Study , 1998 .

[14]  S. Krueger,et al.  Linear eddy modeling of droplet spectral evolution during entrainment and mixing in cumulus clouds , 1998 .

[15]  W. Chao,et al.  Tropical Intraseasonal Oscillation, Super Cloud Clusters, and Cumulus Convection Schemes. Part II: 3D Aquaplanet Simulations , 1998 .

[16]  L. Margolin,et al.  MPDATA: A Finite-Difference Solver for Geophysical Flows , 1998 .

[17]  B. Mapes.  The Large-Scale Part of Tropical Mesoscale Convective System Circulations , 1998 .

[18]  Steven K. Krueger,et al.  Modeling Entrainment and Finescale Mixing in Cumulus Clouds , 1997 .

[19]  W. Skamarock,et al.  The resolution dependence of explicitly modeled convective systems , 1997 .

[20]  Wojciech W. Grabowski,et al.  Cloud-Resolving Modeling of Tropical Cloud Systems during Phase III of GATE. Part I: Two-Dimensional Experiments. , 1996 .

[21]  David A. Randall,et al.  Explicit Simulation of Cumulus Ensembles with the GATE Phase III Data: Comparison with Observations , 1996 .

[22]  K. Emanuel,et al.  Hierarchical Tropical Cloud Systems in an Analog Shallow-Water Model. , 1995 .

[23]  D. Raymond.  Convective processes and tropical atmospheric circulations , 1994 .

[24]  M. Blackburn,et al.  Mean climate and transience in the tropics of the UGAMP GCM: Sensitivity to convective parametrization , 1994 .

[25]  P. R. Julian,et al.  Observations of the 40-50-day tropical oscillation - a review , 1994 .

[26]  Margaret A. LeMone,et al.  Momentum and Mass Transport by Convective Bands: Comparisons of Highly Idealized Dynamical Models to Observations. , 1994 .

[27]  Isaac M. Held,et al.  Radiative-convective equilibrium with explicit two-dimensional moist convection , 1993 .

[28]  S. Krueger.  Linear Eddy Modeling of Entrainment and Mixing in Stratus Clouds , 1993 .

[29]  Brian E. Mapes,et al.  Gregarious Tropical Convection , 1993 .

[30]  Da‐Lin Zhang,et al.  Numerical Simulation of an Intense Squall Line during 10–11 June 1985 PRE-STORM. Part II: Rear Inflow, Surface Pressure Perturbations and Stratiform Precipitation , 1989 .

[31]  David B. Parsons,et al.  Numerical Simulation of an Intense Squall Line during 10–11 June 1985 PRE-STORM. Part I: Model Verification , 1989 .

[32]  K. Lau,et al.  Dynamics of super cloud clusters, westerly wind bursts, 30-60 day oscillations and ENSO - An unified view , 1989 .

[33]  Alan R. Kerstein,et al.  A linear-eddy model of turbulent scalar transport and mixing , 1988 .

[34]  R. Rotunno,et al.  A Theory for Strong, Long-Lived Squall Lines , 1988 .

[35]  S. Eisenstat,et al.  Variational Iterative Methods for Nonsymmetric Systems of Linear Equations , 1983 .

[36]  Y. Ogura,et al.  Response of Tradewind Cumuli to Large-Scale Processes , 1980 .

[37]  M. Moncrieff,et al.  The dynamics and simulation of tropical cumulonimbus and squall lines , 1976 .

[38]  Wojciech W. Grabowski,et al.  Hierarchical modelling of tropical convective systems using explicit and parametrized approaches , 2001 .

[39]  S. K. Krueger,et al.  Intercomparison of Multi-Day Simulations of Convection during TOGA COARE with Several Cloud-Resolving and Single-Column Models , 1998 .

[40]  William D. Anderson,et al.  Performance of a Massively Parallel 3D Non-Hydrostatic Atmospheric Fluid Model , 1997, PDPTA.

[41]  A. Sumi.  Pattern formation of convective activity over the aqua-planet with globally uniform sea surface temperature (SST) , 1992 .