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  2. Northern California TRACON - Wikipedia

    en.wikipedia.org/wiki/Northern_California_TRACON

    San Francisco International Airport is the second largest airport in California and the largest airport serving Northern California. When an arriving aircraft nears the Bay Area, Oakland Center advises it to contact NorCal TRACON. TRACON gives the arrival a descent profile and other landing aid clearances. During busy times, TRACON often has to ...

  3. Doppler radar - Wikipedia

    en.wikipedia.org/wiki/Doppler_radar

    A Doppler radar is a specialized radar that uses the Doppler effect to produce velocity data about objects at a distance. [1] It does this by bouncing a microwave signal off a desired target and analyzing how the object's motion has altered the frequency of the returned signal.

  4. 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.).

  5. 'Extremely dangerous situation': Hollywood Hills hit by major ...

    www.aol.com/news/powerful-storm-triggers-mudflow...

    "Doppler radar indicated heavy rain," the weather service said. Five to eight inches of rain had already fallen in that area, forecasters said late Sunday night, and an additional 1 to 4 inches ...

  6. 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 ...

  7. Another major storm to slam California, heightening dangers ...

    www.aol.com/news/another-major-storm-expected...

    The brunt of the New Year's Eve storm fell on Northern California. In San Francisco, 5.46 inches of rain fell, making Saturday the city’s second-wettest day in more than 170 years, the National ...

  8. Category:Weather radars - Wikipedia

    en.wikipedia.org/wiki/Category:Weather_radars

    Terminal Doppler Weather Radar; W. Wind profiler This page was last edited on 4 January 2014, at 12:45 (UTC). Text is available under the Creative Commons ...

  9. List of radar types - Wikipedia

    en.wikipedia.org/wiki/List_of_radar_types

    However, since humans reflect far less radar energy than metal does, these systems require sophisticated technology to isolate human targets and moreover to process any sort of detailed image. Through-the-wall radars can be made with Ultra Wideband impulse radar, micro-Doppler radar, and synthetic aperture radar (SAR). [5] Imaging radar; 3D radar