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1. www.britannica.com › technology › radarRadar | Definition, Invention, History, Types, Applications ...

   www.britannica.com › technology › radar

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   5 days ago · radar, electromagnetic sensor used for detecting, locating, tracking, and recognizing objects of various kinds at considerable distances. It operates by transmitting electromagnetic energy toward objects, commonly referred to as targets, and observing the echoes returned from them. The targets may be aircraft, ships, spacecraft, automotive ...

   • Radar

     Radar - Detection, Military, Technology: Serious...

   • Transmitters

     Radar - Transmitters, Waves, Signals: The transmitter of a...

   • Atmospheric Effects

     Radar - Reflection, Refraction, Scattering: As was...

2. Videos

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     3:02

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     Ask the Bureau: How does a weather radar work?

     Jun 8, 2017

     117.7K Views

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     2:19

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     How does doppler radar work?

     Sep 7, 2021

     11.5K Views

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     1:54

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     Weather Radar 101

     Jan 20, 2020

     49.7K Views

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3. nwdistrict.ifas.ufl.edu › phag › 2024/05/31Friday Feature: How to Read Weather Radar | Panhandle Agriculture

   nwdistrict.ifas.ufl.edu › phag › 2024/05/31

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   5 days ago · Doppler radar can even differentiate the intensity and direction of wind in relation to the radar station. Watch this video for a better understanding of how meteorologist utilize radar for estimating where tornadoes may be forming and the direction they are moving to warn people ahead of severe storms.

4. weather.gc.caWeather Information - Environment Canada

   weather.gc.ca

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   17 hours ago · 2024-06-04. Environment Canada's weather web site provides official weather warnings, current conditions, forecasts, and weather models, for public and marine areas in Canada. Canadian weather RADAR, tropical storm tracking, lightning activity, UV index, and AQHI index values also available.

5. People also ask

   How does radar work?

   • Radar typically involves the radiating of a narrow beam of electromagnetic energy into space from an antenna ( see the figure ). The narrow antenna beam scans a region where targets are expected. When a target is illuminated by the beam, it intercepts some of the radiated energy and reflects a portion back toward the radar system.

   Radar | Definition, Invention, History, Types, Applications, Weather

   www.britannica.com/technology/radar

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   How does a tracking radar work?

   • A dedicated tracking radar —one that follows automatically a single target so as to determine its trajectory—generally has a narrow, symmetrical “pencil” beam. (A typical beamwidth might be about 1 degree.) Such a radar system can determine the location of the target in both azimuth angle and elevation angle.

   Radar | Definition, Invention, History, Types, Applications, Weather

   www.britannica.com/technology/radar

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   How does a radar antenna work?

   • When a target is illuminated by the beam, it intercepts some of the radiated energy and reflects a portion back toward the radar system. Since most radar systems do not transmit and receive at the same time, a single antenna is often used on a time-shared basis for both transmitting and receiving.

   Radar | Definition, Invention, History, Types, Applications, Weather

   www.britannica.com/technology/radar

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   How does aircraft surveillance radar work?

   • An aircraft-surveillance radar generally employs an antenna that radiates a “ fan ” beam, one that is narrow in azimuth (about 1 or 2 degrees) and broad in elevation (elevation beamwidths of from 20 to 40 degrees or more). A fan beam allows only the measurement of the azimuth angle.

   Radar | Definition, Invention, History, Types, Applications, Weather

   www.britannica.com/technology/radar

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6. www.sws.bom.gov.au › Educational › 1/3/2SWS - Space Weather - Satellite Communications and Space Weather

   www.sws.bom.gov.au › Educational › 1/3/2

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   3 days ago · Space environmental effects on satellite communication can be separated into (1) effects on the space element (ie the satellite), (2) effects on the ground element (ie the Earth station), and (3) effects on the signals propagating through the Earth's lower and upper atmosphere. Effects on the satellite depend on the orbit of the satellite.

7. www.weathernerds.org › models › hrrrWeathernerds HRRR

   www.weathernerds.org › models › hrrr

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   Weathernerds provides weather data in a flexible, practical interface. This site is designed to give creativity and control to the forecaster so that imagery is weather feature-based rather than relying on predefined geographic maps. Weather models available on the site include the ECMWF, GEM, GFS, HRRR, ICON, NAM, HWRF, HMON, HAFS-A/B, and RAP.

8. phys.org › news › 2024-06-current-state-globalStudy reviews current state of global navigation satellite ...

   phys.org › news › 2024-06-current-state-global

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   1 day ago · Global navigation satellite system reflectometry (GNSS-R) is emerging as a pivotal technology in remote sensing due to its ability to provide high-precision, real-time data under all weather ...

9. www.necn.com › news › national-internationalHow Biden’s new order to restrict asylum at the border is ...

   www.necn.com › news › national-international

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   1 day ago · Legal challenges are imminent. There are also serious questions of whether the new measure can stop large-scale migrant entries. Mexico has agreed to take back migrants who are not Mexican, but ...