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I assume you're talking about Doppler Weather Radar. It measures reflectivity over long distances. These radars scan the atmosphere at different levels and when the radar sees an object in the atmosphere (such as rain, bugs, etc) it plots the location and gives a measurement of how reflective the object is. Doppler Weather Radar is very useful for showing where it's currently raining, snowing or hailing---and how heavy it is. It can also track the movement of precipitation and other wind-driven particles in the air which allows it to calculate the speed of wind and if the wind is blowing toward or away from the radar tower. Seeing the wind directions and speeds inside of a thunderstorm help meteorologists determine areas of rotation in storms (which may mean that a tornado is developing)...
Wiki User
∙ 15y ago
Wiki User
∙ 13y agoAny type of wave, sea, electromagnetic (e-m), or sound; will be reflected or refracted when it meets a substance that has different transmission characteristics to the previous medium.
In the case of e-m waves, it is the dielectric constant that differs, and so some of the wave is reflected. And with a sensitive receiver, we may detect the reflected wave, and determine its direction and range.
The Stealth planes are designed such that they have mainly flat shapes, (so you would have to be very lucky to see them), and are coated with material that is lossy (absorbs) to e-m waves, so that there is little reflection.
Wiki User
∙ 14y agoA radar gun or speed gun is a small Doppler radar unit used to detect the speed of objects, especially trucks and automobiles for the purpose of regulating traffic, as well as pitched baseballs, runners or other moving objects in sports. A radar gun does not return information regarding the object's position. It relies on the Doppler Effect applied to a radar beam to measure the speed of objects at which it is pointed. Radar guns may be hand-held or vehicle-mounted.
Most of today's radar guns operate at X, K, Ka, IR Band (infrared), and (in Europe) Ku bands. An alternative technology, LIDAR, uses pulsed laser light.
The radar gun was invented by Bryce K. Brown of Decatur Electronics in March 1954[1], and was first used in Chicago, Illinois by Patrolman Leonard Baldy in April 1954.
There are radar detectors on the market which can detect most police radar and laser systems. Conversely, in the spirit of electronic warfare, some police radars are equipped with detectors of operating detectors.
Wiki User
∙ 13y agoDoppler radar not only performs the tasks of a traditional radar, it has the ability to detect motion directly. It can detect the initial formation and subsequent development of a mesocyclone, the intense rotating wind system in the lower part of a thunderstorm that frequently precedes tornado development.
Wiki User
∙ 12y agoIt uses the time differential from sending and receiving to measure distance and motion.
It most commonly measures precipitation intensity in meteorology.
Wiki User
∙ 13y agoRadars are used in measuring the distance & the speed at which the body is moving toward or away from the observing unit.
Wiki User
∙ 14y agoWiki User
∙ 13y agoDoppler radar is commonly used to detect precipitation and how much is coming down and can also be used to measure wind speed.
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What devices are used to detect Tropical Storms?
you would use a weather satellite or 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.
What technology is being used to detect microbursts?
The main technology that is being used to detect microbursts is Doppler radar. Another one called LIDAR is also growing in popularity.
What is a C-Band Doppler radar?
C-Band Doppler Radar is any Doppler radar system which operates in the C-Band of the electromagnetic spectrum (around 4.8Ghz). These are typically the radar systems seen at TV stations as they are affordable and powerful enough for their purposes.
Where was the first Doppler radar used in the US?
The exact location of where the first Doppler radar system was used cannot be determined because the first radar systems were mobile.
Radars can be used to detect tornadoes true or false?
True. Doppler radar can detect tornadoes.
What instrument can detect a tornado?
Tornadoes are usually detected using Doppler radar.
Can or cannot a radar track down a tornado?
Doppler radar can, but with some limits. Doppler radar can detect rotation of a tornado, as well as the larger rotation that may produce one, but it cannot tell if the rotation reaches the ground. Additionally, radar may fail to detect weak tornadoes and tornadoes that are very far away.
what device tells us that a tornado is approaching?
Doppler radar can detect the signature of a tornado from a distance.
What devices are used to detect Tropical Storms?
you would use a weather satellite or doppler radar.
Doppler radar can detect the initial formation and subsequent development of what type of wind system?
Mesocyclone
What weather instrument uses radio waves to detect wind or rain or snow?
Doppler radar
How do they know when there is a tornado?
Meteorologists use a combination of Doppler radar and eyewitness reports. Doppler radar can detect the rotation of a tornado or rotation that may soon lead to one. Newer advancements in radar can now detect debris lifted into the air from trees and buildings. People can also report when they see a tornado.
Why do they use Doppler radar to monitor tornadoes?
Doppler radar can be used to measure at a distance how fast the wind is moving towards or away from the radar. Because of this ability, we can used Doppler radar to detect the rotation in a thunderstorm that either indicates a tornado or might become one. Radar provides a huge advantage since it can scan a large area in a matter of minutes and detect tornadoes even when nobody is around to see them or if they are obscured by rain or the dark of night.
What type of instruments are used to detect a tornado?
Doppler radar can be used to detect tornadoes. Aside from that tornadoes are tracked based on eyewitness reports.
Can radar detect?
Doppler radar is used to measure speed, not temperature.
How do tornadoes get detected if they aren't always visible?
One method of detection is Doppler radar, which can detect the signature of a tornado.
