Correlation Coefficient values are measurements related to the similarity between
the behaviors of the horizontally and vertically polarized pulses and how they are behaving
within a pulse volume. Values between 0.95 and 1.0 indicate near uniformity in pulse behavior.
Meteorological targets with complex shapes, or with a large degree of variety, will generally
have values between 0.85 and 0.95. Biological targets, anthropogenic targets, and ground
clutter tend to cause very different behaviors between the pulses, resulting in values less
than 0.9 (and often less than 0.7). The four lowest elevation angles are available.
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