Collaborative Project: High-resolution Global Modeling of the Effects of Subgrid-Scale Clouds and Turbulence on Precipitating Cloud Systems

Randall, David A.¹ 

[1]Colorado State Univ., Fort Collins, CO (United States). Dept. of Atmospheric Science

关键词: parameterizations;    modeling;    sub-grid;    clouds;   

DOI  :  10.2172/1226257
RP-ID  :  DOE-CSU--0008459-1
PID  :  OSTI ID: 1226257

美国|英语

来源: SciTech Connect

【 摘 要 】

We proposed to implement, test, and evaluate recently developed turbulence parameterizations, using a wide variety of methods and modeling frameworks together with observations including ARM data. We have successfully tested three different turbulence parameterizations in versions of the Community Atmosphere Model: CLUBB, SHOC, and IPHOC. All three produce significant improvements in the simulated climate. CLUBB will be used in CAM6, and also in ACME. SHOC is being tested in the NCEP forecast model. In addition, we have achieved a better understanding of the strengths and limitations of the PDF-based parameterizations of turbulence and convection.