Keyword Analysis & Research: doppler

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What is Doppler used for?

A Doppler test is a non-invasive medical test used to examine blood flow through major arteries. Sometimes called a Doppler ultrasound, the test helps doctors identify blockages than can lead to health complications, such as a stroke. Doppler imaging also helps doctors diagnose conditions such as arterial occlusion,...

What does the Doppler radar tell us?

Doppler Radar. Doppler radar can see not only the precipitation in a thunderstorm (through its ability to reflect microwave energy, or reflectivity ), but motion of the precipitation along the radar beam. In other words, it can measure how fast rain or hail is moving toward or away from the radar. From a volume scan (a series of 360-degree sweeps, each tilting a little higher than the last), forecasters can get a detailed look at structures and movements in storms close to the radar.

What is Christian Doppler known for?

Christian Doppler. Christian Andreas Doppler (29 November 1803 – 17 March 1853) was an Austrian mathematician and physicist. He is most famous for what is now called the Doppler effect, which is the apparent change in frequency and wavelength of a wave as perceived by an observer moving relative to the wave's source.

What is a ten day forecast?

The 10-day forecast is a prediction of the weather extending 10 days into the future (with varying degrees of accuracy).

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