A doppler radar is a specialized radar that uses the doppler effect to produce velocity data about objects at a distance. It does this by beaming a microwave signal towards a desired target and listening for its reflection, then analyzing how the frequency of the returned signal has been altered by the object's motion. The type of technology that is used to predict blizzards are called doppler radar, as shown above. This particular doppler radar obtains precipitation and wind information based off of returned energy. How it gets that returned energy is that the radar emits a signal and if it hits an object (for example, a rain drop) the energy gets scattered and some of that energy gets reflected back to the radar and becomes received.
No comments:
Post a Comment