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CR - Composite Reflectivity
A display of echo intensity measured in dBZ. This product
is used to detect precipitation, evaluate storm structure, locate
boundaries and determine hail potential. The 4 lowest elevations angles
are available.
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BR1 - Base Reflectivity
A display of echo intensity measured in dBZ. This product
is used to detect precipitation, evaluate storm structure, locate
boundaries and determine hail potential. The 4 lowest elevations angles
are available.
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BV - Base Velocity
A measure of the radial component of the wind either
toward the radar (negative values) or away from the radar (positive
values). Negative values are represented by cool colors (green) while
positive values are represented by warm colors (red). This product is
used to estimate wind speed and direction, locate boundaries, locate
severe weather signatures and identify suspected areas of turbulence.
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SRV - Storm Relative Velocity
When the motion of storms are subtracted from the wind
field, the result is a picture of the wind as if the storms were
stationary. Color induces are the same as base velocity. Comparing the
storm relative motion image with base velocity image helps identify the
rotating storm.
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SV 32 - Spectrum Width 32MN
A measure of velocity dispersion within the radar sample
volume. The primary use of this product is to estimate turbulence
associated with mesocyclones and boundaries.
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ET - Echo Tops
An image of the echo top heights color coded in
user-defined increments. This product is used for a quick estimation of
the most intense convection and higher echo tops, as an aid in
identification of storm structure features and for pilot briefing
purposes.
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VIL - Vertical Integrated Liquid
The water content of a 2.2 X 2.2 nmi column of air which
is color coded and plotted on a 124 nmi map. This product is used as an
effective hail indicator, to locate most significant storms and to
identify areas of heavy rainfall.
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ZDR -
Differential Reflectivity
A measurement related to the returned energy difference
between the vertical and horizontal radar pulses. Large positive values
indicate that targets are generally much larger horizontally than
vertically. Values near zero indicate the targets are generally
spherical. Negative values indicate targets are larger in the vertical
than in the horizontal.
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CC - Correlation
Coefficient A
measurement related to the similarity between the behavior of the
horizontally and vertically polarized pulses 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).
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KDP - Special
Differential Phase
A measurement of difference between the horizontal and
vertical pulses phase changes as they travel through the atmosphere.
Interpreting Specific Differential Phase (KDP) can be very difficult.
It's primary use involves detecting areas of heavy rain. KDP values are
largest when going through areas dominated by large rain drops. In some
cases, regions with high KDP values may also contain melting hail.
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HHC - Hydrometeor
Classification
Computer algorithm output that determines the most likely
classification of the targets in the radar volume. The product displays
which of the pre-defined categories most likely was the cause of the
radar echo at that location.
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STR - Storm Total Rain
The estimated storm total precipitation accumulation on a
1.1 nmi x 1 Degree grid continuously updated since the precipitation
event began. This product uses the PPS algorithm and is used to locate
flood potential over urban or rural areas, estimate total basin runoff
and provide rainfall data 24 hours a day.
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OHR - One Hour Rain
A
display of estimated one hour precipitation accumulation on a 1.1 nmi
(Nautical Mile) x 1 Degree grid using the Precipitation Processing
System (PPS) algorithm. This product is used to assess rainfall
intensities for flash flood warnings, urban flood statements and special
weather statements.
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THR - Three Hour Rain
Same as one hour, except for a three hour period.