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  2. Terminal Doppler Weather Radar - Wikipedia

    en.wikipedia.org/wiki/Terminal_Doppler_Weather_Radar

    Airports with a TDWR in the US. Another in San Juan, Puerto Rico, is not shown on this map.. Terminal Doppler Weather Radar (TDWR) is a Doppler weather radar system with a three-dimensional "pencil beam" used primarily for the detection of hazardous wind shear conditions, precipitation, and winds aloft on and near major airports situated in climates with great exposure to thunderstorms in the ...

  3. NEXRAD - Wikipedia

    en.wikipedia.org/wiki/NEXRAD

    NEXRAD or Nexrad (Next-Generation Radar) is a network of 159 high-resolution S-band Doppler weather radars operated by the National Weather Service (NWS), an agency of the National Oceanic and Atmospheric Administration (NOAA) within the United States Department of Commerce, the Federal Aviation Administration (FAA) within the Department of Transportation, and the U.S. Air Force within the ...

  4. Effects of Hurricane Maria in Puerto Rico - Wikipedia

    en.wikipedia.org/wiki/Effects_of_Hurricane_Maria...

    NEXRAD radar destroyed by Maria. The NEXRAD Doppler weather radar of Puerto Rico had also been literally blown away. The radome which covers the radar antenna, was destroyed in the 130-mph winds, and the 30-foot-wide radar dish was blown from the pedestal, which remained intact. The radar is located at an elevation of 2,800 feet and the ...

  5. Emergency position-indicating radiobeacon - Wikipedia

    en.wikipedia.org/wiki/Emergency_position...

    An emergency position-indicating radiobeacon (EPIRB) is a type of emergency locator beacon for commercial and recreational boats, a portable, battery-powered radio transmitter used in emergencies to locate boaters in distress and in need of immediate rescue. In the event of an emergency, such as a ship sinking or medical emergency onboard, the ...

  6. Effects of Hurricane Georges in the Dominican Republic

    en.wikipedia.org/wiki/Effects_of_Hurricane...

    The effects of Hurricane Georges in the Dominican Republic were some of the worst in its recorded history. Georges produced $1 billion of damage to the island and killed over 380 people. 7000 people evacuated to six shelters in the capital city of Santo Domingo. Supplies came from countries including the United States, France, Spain, Italy ...

  7. Weather radar - Wikipedia

    en.wikipedia.org/wiki/Weather_radar

    Weather radar in Norman, Oklahoma with rainshaft Weather (WF44) radar dish University of Oklahoma OU-PRIME C-band, polarimetric, weather radar during construction. Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.).

  8. Effects of Hurricane Georges in Puerto Rico - Wikipedia

    en.wikipedia.org/wiki/Effects_of_Hurricane...

    Doppler weather radar recorded a third tornado in the Jayuya area. [1] No fatalities were reported on the island. Damages to the utility system was catastrophic. 96% of the electrical system was lost for 1.3 million people. Water and sewer service was lost to 75% of the island's population. Road damage totaled out to $21.995 million.

  9. Doppler radar - Wikipedia

    en.wikipedia.org/wiki/Doppler_radar

    Doppler effect. The emitted signal toward the car is reflected back with a variation of frequency that depends on the speed away/toward the radar (160 km/h). This is only a component of the real speed (170 km/h). The Doppler effect (or Doppler shift), named after Austrian physicist Christian Doppler who proposed it in 1842, is the difference ...