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DESCRIPTION: Composite Reflectivity is the maximum
base reflectivity value that occurs in a
given vertical column in the radar umbrella. NEXRAD scans in
several pre-defined "volume coverage patterns (VCPs), where
the radar makes a 360-degree horizontal sweep with the radar
antenna tilted at a given angle above the horizontal, then
changes the elevation angle, and completes another
360-degree sweep, and so on. Composite reflectivity gives a
plan view of the most intense portions of thunderstorms, and
can be compared with Base Reflectivity
to help determine the 3-D structure of a thunderstorm.
PRODUCTS: There are two (2) Composite
Reflectivity NIDS products:
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CREF8
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8 data levels
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CREF16
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16 data levels
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