Doppler radar is used to estimate the type of precipitation and the speed/direction of the system (i.e. hurricane, tornado, thunderstorm). Doppler radar images are
planimetric, and the colored regions represent
isotachs. They indicate that the eye of the hurricane is in Tampa and that heavy rainfall and thunderstorms reach all the way to St. Augustine. This image shows the
doppler reflectivities as well as the
rotational velocities.
Source
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