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What is Doppler radar and how is it used in weather prediction and forecasting?
Wiki User
∙ 12y ago
A Doppler radar is a radar using the Doppler effect of the returned echoes from targets to measure their radial velocity. To be more specific the microwave signal sent by the radar antenna's directional beam is reflected toward the radar and compared in frequency, up or down from the original signal, allowing for the direct and highly accurate measurement of target velocity component in the direction of the beam.
Recent weather radars process velocities of precipitations by Pulse-Doppler radar technique, on top of their intensities. This is a slightly different treatment of Doppler data that has been publicized so much in the United States that the term Doppler radar is often wrongly used by the public to mean weather radar.
For more info see:
http://en.wikipedia.org/wiki/Doppler_radar
Wiki User
∙ 12y ago
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Where is the Doppler radar used?
Doppler radars are used in weather stations and for forecasting,predicting tornadoes,and hurricanes.
Which of the following would be most useful for determining the presence of a tornado?
Doppler radar!!! this is the choice right? weather satellight barometer weather balloon Doppler radar
Is it true or false that radar can be used to detect tornadoes?
The Doppler radar itself does not predict tornadoes, meteorologists do. Doppler radar can detect the signature of a possible tornado, but it usually takes reports from weather spotter to confirm a tornado is occurring.
How much does a weather Doppler radar cost?
2 million US$ - estimate
What devices are used to detect Tropical Storms?
you would use a weather satellite or doppler radar.
Where is the Doppler radar used?
Doppler radars are used in weather stations and for forecasting,predicting tornadoes,and hurricanes.
What type of scientis twould use a Doppler radar and why?
The Doppler radar used in weather forecasting measures the direction and speed, or velocity, of objects such as drops of precipitation. This is called the Doppler Effect and is used to determine whether movement in the atmosphere is horizontally toward or away from the radar, which aides in weather forecasting. The radar was named for J. Christian Doppler, an Austrian physicist, who was the first to articulate the reason an approaching train's whistle will sound higher than the whistle as the train moves away.
How has weather forecasting changed over the last 100 years?
usingtechnology such as Doppler radar as well as weather ballons,satellites,and computers, the position and strength of storms are wacthed constanly.predicting the movement of is sometimes difficult because the conditions that affect them are always changing.
What is the Doppler radar used in?
Weather and warfare.
What has the author Alan R Bohne written?
Alan R Bohne has written: 'In-flight turbulence detection' -- subject(s): Remote sensing, Atmospheric turbulence, Doppler radar, Radar meteorology 'Short term forecasting of cloud and precipitation along communication paths' -- subject(s): Cloud forecasting, Precipitation forecasting, Weather forecasting
Which of the following would be most useful for determining the presence of a tornado?
Doppler radar!!! this is the choice right? weather satellight barometer weather balloon Doppler radar
What radar is a New generation of weather radar that is capable of detecting motion directly?
Doppler Radar
What are two tools that meteorologists use to predict the weather?
Weather balloons and Doppler Radar.
What tool shows weather change?
Doppler Radar, Thermometer, Barometer
How do tornadoes get monitored?
Doppler weather radar is used to monitor tornadoes.
Is the Doppler radar the only satellite radar in the world?
Actually the Doppler Radar aka nexrad Next generation radar is not a satellite it is a radar. Satellites are floating around the world in space and Doppler radars are here on earth to monitor weather. As far as I know the Doppler radar is the only weather radar in the world. It is basically the only thing used for monitoring weather. I the above is not quite correct. Weather radars come in two basic types coherent and non-coherent. The Coherent radar come in Doppler Radar which can be FMCW or Active Pulse Doppler. The non coherent Pulse Radar merely aim high energy pulses at the clouds and display the returned power in a colour display. The coherent version integrates many pulses together to gain a Higher signal to Noise and to detect water drops moving in clouds. That aside, to answer the question which has nothing to do with weather radar, Doppler radar is frequency used in space verticals because its coherent processing gains in achieves help to offset the ranges it operates over, but it is not the only radar technique to be used on satellites and it depends on what the radar is trying achieve. Note that Doppler radar is non a synonymous exclusively of "nexrad Next generation radar".
Is it true or false that radar can be used to detect tornadoes?
The Doppler radar itself does not predict tornadoes, meteorologists do. Doppler radar can detect the signature of a possible tornado, but it usually takes reports from weather spotter to confirm a tornado is occurring.
