The Scanning ARM precipitation radars produce measurements of raw radar moments in antenna coordinates of range from and the azimuth and elevation of the antenna. Most numerical representations of the atmosphere tend to be in a Cartesian coordinate system using either height above mean sea level (or land surface in sigma coordinates) or pressure levels as a vertical scale. In addition to applying a correction for radar aliasing, correcting cross polarimetric phase difference for second trip returns and folding, recalculating specific differential phase (due to a configuration error on the radar product generator) and applying an attenuation correction algorithm, the VAP maps the antenna coordinate data to a Cartesian grid.
mmcg > Precipitation Radar Moments Mapped to a Cartesian GridVAP Type(s) > Evaluation
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