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Continuous-wave radar (CW radar) is a type of radar system where a known stable frequency continuous wave radio energy is transmitted and then received from any reflecting objects. [1] Individual objects can be detected using the Doppler effect , which causes the received signal to have a different frequency from the transmitted signal ...
Waze launched the Connected Citizens Program (CCP) in June 2014, a free, two-way data sharing program used by over 450 governments, departments of transportation, and municipalities for traffic analysis, road planning, and emergency workforce dispatching. [49] [50] The program is a two-way data exchange between Waze and the partner.
Synthetic-aperture radar ( SAR) is a form of radar that is used to create two-dimensional images or three-dimensional reconstructions of objects, such as landscapes. [ 1] SAR uses the motion of the radar antenna over a target region to provide finer spatial resolution than conventional stationary beam-scanning radars.
As the center of the storm moved out to sea, a batch of moisture broke off it, and moved north, bringing moderate rain to New England. The storm caused millions of dollars in damage. September 4, 2010 – Hurricane Earl passed about 90 miles offshore, but still brought heavy rain, large waves, and tropical storm force gusts to Cape Cod.
The Doppler effect (also Doppler shift) is the change in the frequency of a wave in relation to an observer who is moving relative to the source of the wave. [ 1][ 2][ 3] The Doppler effect is named after the physicist Christian Doppler, who described the phenomenon in 1842. A common example of Doppler shift is the change of pitch heard when a ...
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Radar loop of Hurricane Katrina making landfall in Louisiana On August 28, Alabama Governor Bob Riley declared a state of emergency for the approaching Hurricane Katrina. On the same day, he requested President Bush to declare "expedited major disaster declaration" for six counties of South Alabama, which was quickly approved.
Target is the latest mega-retailer to throw their hat in the ring next month. Announced earlier this week, Target Circle Week is headed our way. This year, the savings event will run from Sunday ...
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