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A multi-scale modeling system with unified physics has been developed at NASA Goddard Space Flight Center (GSFC). The system consists of an MMF (multi-scale modeling framework, or super-parameterization), the coupled NASA Goddard finite-volume GCM (fvGCM) and Goddard Cumulus Ensemble model, and the Weather Research and Forecasting model. These models can share the same microphysical schemes, radiation (including explicitly calculated cloud optical properties), and surface models. In addition, a comprehensive unified simulator, the Goddard Satellite Data Simulation Unit (SDSU), has been developed to compute satellite-consistent radiances based on the geophysical parameters simulated by the multi-scale modeling system. This allows model performance to be evaluated directly against radiance measurements from NASA satellites. We propose to utilize high-resolution NASA satellite radiance measurements and retrieved products, large-scale analyses and field campaign observations to improve the multi-scale modeling capabilities, advance our understanding of clouds, and evaluate the impact of clouds in climate and weather models. The major objectives of this proposal are: (1) To use NASA satellite radiance measurements and retrieved products and field campaign observations to improve simulated microphysical processes and cloud properties, (2) To improve the MMF’s performance by study its coupling methodology [e.g., using a 3D CRM, replacing the Goddard Earth Observing System Data Assimilation System Version 4 (GEOS-4) with Version 5 (GEOS-5)] for atmosphere-ocean interactions, examining the CRM’s cloud-radiation-surface interactions, and performing sensitivity tests on various other coupling strategies), and (3) To compare and analyze simulations of important regional weather/climate features, such as the Madden-Julian Oscillation (MJO), from the MMF and GEOS-5 with large-scale analyses (i.e., Modern ERA Retrospective - Analyses for Research and Applications, MERRA) and NASA Earth Observing System (EOS) satellite products.

Project PI: Wei-Kuo Tao/NASA Goddard Space Flight Center

Mesoscale Atmospheric Processes Branch (Code 613.1) NASA Goddard Space Flight Center Greenbelt, MD 20771

Phone:(301) 614-6269

Email: tao@agnes.gsfc.nasa.gov

http://atmospheres.gsfc.nasa.gov/cloud_modeling/Tao.html

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Started: Aug 10, 2010

Last Activity: Dec 15, 2010

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