ATOC 184 Lecture Notes - Lecture 2: Wind Profiler, Sound, Overshooting Top
11 Apr 2018
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Because the ambulance is moving towards you, the time it takes the waves to get to you will be decrease => it is a higher frequency => pitch appears higher. As it moves away, the distance in increasing => a lower frequency because it takes longer for the waves to get to you => pitch is lower. If its longer, they know the precipitation is moving away. If its shorter, they know it"s coming towards you: allows us to see something dangerous in a thunderstorm. Violent shift in winds over very small distances. Radar velocity interpretation radar is sending out beams in all directions if wind is 0, it is either not blowing, or perpendicular to radar beam. Wind profilers: a wind profiler is another type of doppler radar that detects small variations in atmospheric density in regions of even the slightest turbulence.
