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In a radar image, one can see only the energy that was reflected back towards the radar antenna. The radar moves along a flight path and the area illuminated by the radar, or footprint, is moved along the surface in a swath, building the image as it does so. [1] Digital radar images are composed of many dots.
Get the Passaic, NJ local weather forecast by the hour and the next 10 days.
Weather radar, also called Doppler weather radar, is a type of radar used to locate and estimate the type of precipitation, such as rain, snow, or hail. Learn about the history, types, and applications of weather radar, and how it can detect severe weather and storms.
NEXRAD is a system of 159 high-resolution weather radars operated by the U.S. government agencies for detecting precipitation and atmospheric movement. It was developed and deployed from 1988 to 1997, replacing the previous WSR-57 and WSR-74 radars.
A plan position indicator (PPI) is a radar display that shows the distance and height of targets from the radar antenna. Learn about the history, uses and features of PPI in various domains such as air traffic control, meteorology and sonar.
A weather map displays various meteorological features across a particular area at a particular point in time and has various symbols which all have specific meanings. Learn about the origin, evolution and usage of weather maps, such as surface weather analysis, isotach maps, streamlines and frontal zones.
A Doppler radar is a specialized radar that uses the Doppler effect to produce velocity data about objects at a distance. [1] It does this by bouncing a microwave signal off a desired target and analyzing how the object's motion has altered the frequency of the returned signal.
Remember, "max height" should be at least 40 degrees on the maps for best visibility. The max height represents the height of the station from the horizon in the night sky, with the horizon at 0 ...
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