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  2. Instituto Português do Mar e da Atmosfera - Wikipedia

    en.wikipedia.org/wiki/Instituto_Português_do_Mar...

    Portugal. Coordinates. 38°46′34″N 9°07′33″W  /  38.77598°N 9.12577°W  / 38.77598; -9.12577. Parent organisations. Ministry of the Sea. The Instituto Português do Mar e da Atmosfera (lit. 'Portuguese Institute of the Sea and the Atmosphere'; abbreviated as IPMA) is the national meteorological, seismic, sea and atmospheric ...

  3. A travel expert who's visited 50 countries isn't rushing to ...

    www.aol.com/travel-expert-whos-visited-50...

    Avid traveler Monet Hambrick, who has visited 50 countries, was blown away by Madeira, Portugal, but couldn't say the same about Dubai.

  4. Mobile radar observation of tornadoes - Wikipedia

    en.wikipedia.org/wiki/Mobile_radar_observation...

    Mobile doppler weather radars have been used on dozens of scientific and academic research projects from their invention in the late 1900s. [1] One problems facing meteorological researchers was the fact that mesonets and other ground-based observation methods were being deployed too slow in order to accurately measure and study high-impact atmospheric phenomena. [1]

  5. RaXPol - Wikipedia

    en.wikipedia.org/wiki/RaXPol

    RaXPol. The Rapid X-band Polarimetric Radar, commonly abbreviated as RaXPol, [1] is a mobile research radar designed and operated by the University of Oklahoma, led by Howard Bluestein. RaXPol often collaborates with adjacent mobile radar projects, such as Doppler on Wheels and SMART-R. [2] Unlike its counterparts, RaXPol typically places ...

  6. Over-the-horizon radar - Wikipedia

    en.wikipedia.org/wiki/Over-the-horizon_radar

    Over-the-horizon radar. How a skywave OTH radar works: A powerful shortwave signal from a large transmitting antenna (left) reaches a target beyond the horizon by refracting off the ionosphere, and the echo signal from the target (right) returns to the receiving antenna by the same route. In practice, the beams are much closer to the horizon ...

  7. dBZ (meteorology) - Wikipedia

    en.wikipedia.org/wiki/DBZ_(meteorology)

    The scale of dBZ values can be seen along the bottom of the image. Decibel relative to Z, or dBZ, is a logarithmic dimensionless technical unit used in radar, mostly in weather radar, to compare the equivalent reflectivity factor (Z) of a remote object (in mm 6 per m 3) to the return of a droplet of rain with a diameter of 1 mm (1 mm 6 per m 3). [1]

  8. 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.).

  9. Radar altimeter - Wikipedia

    en.wikipedia.org/wiki/Radar_altimeter

    Radar altimeters give data to the autothrottle which is a part of the Flight Computer. Radar altimeters generally only give readings up to 2,500 feet (760 m) above ground level (AGL). Frequently, the weather radar can be directed downwards to give a reading from a longer range, up to 60,000 feet (18,000 m) AGL.

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