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Regional and Mesoscale Meteorology Branch

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GOES-R – AWG Proxy Data – Mesoscale Weather

The RAMMB team is involved in the development of simulated GOES-R ABI proxy data for mesoscale weather events such as hurricane cases, a lake effect snow case, and severe weather events. The simulated ABI imagery has been produced for the 10 upper ABI wavelengths from 3.9 to 13.3 ?m. The objective of this project is to create realistic satellite imagery using a state of the art mesoscale model and accurate radiative transfer modeling which can then be used for testing various GOES-R product algorithms.

Modeling specifics

  • The mesoscale model used is CSU-RAMS as it is a 3-dimensional non-hydrostatic model with two moment microphysics and two way nested gridding capabilities.
  • The gaseous absorption is computed using OPTRAN (McMillin et al. 1995).
  • The condensate optical properties are computed using Anomalous Diffraction theory
  • Radiance computations are made using a delta-eddington scheme (infrared) and a plane parallel version of the Spherical Harmonics Discrete Ordinate Method (SHDOMPP).

Examples of RAMMB’s mesoscale synthetic ABI products can be seen below.