Quote:
Originally Posted by ila
Doppler just means the change in frequency between the transmitted signal and the received signal. All radar does and always has worked by the Doppler effect.
The difference between early radar and modern versions is the quality of the receiver/computer that can process the returned signal. Modern radar is able to get more and better detail than the old analogue vacuum tube radar.
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What about the rest of my post?
I know what the "Doppler Effect" is. And how radar works. I was under the impression that the radar standard used for years (in the US at least) was WSR-57 and produced images like the one I included in my post above. The Xenia Ohio tornado was indicated by the "hook" echo which must have come from the Doppler effect. Weather radar today uses a different, upgraded standard introduced in 1988 known as "WSR-88." From what I've read, these can measure motion or "rotation" inside a thunderstorm and identify cells that might produce a tornado.
Some of the old "WSR-57's" lasted into the 90's. I read somewhere that Hurricane Andrew in 1992 blew one of the last operational ones off the roof of a weather station in Florida.
The site is all yours my friend... I have contemplated leaving many times. Guess it's time.