upper-air observation

  • 1upper-air observation — A measurement of atmospheric conditions aloft, above the effective range of a surface weather observation. Also called sounding and upper air sounding. This is a general term, but it is usually applied to those observations used in the analysis… …

    Aviation dictionary

  • 2upper air — In synoptic meteorology and in weather observation, the portion of the atmosphere that is above the lower troposphere. No distinct lower limit is set, but the term is generally applied to the levels above 5000 ft AMSL (above mean sea level) or… …

    Aviation dictionary

  • 3Air Force Special Operations Weather Technician — U.S. Air Force Special Operations Weather Team U.S. Air Force Special Operations Weather Team Specialist flash with crest …

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  • 4Thule Air Base — Infobox Airport name = Thule Air Base nativename = Part of Air Force Space Command (AFSPC) nativename a = nativename r = image width = 250 caption = IATA = THU ICAO = BGTL type = Military owner = operator = United States Air Force city served =… …

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  • 5Air Force Research Laboratory — Emblem of AFRL …

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  • 6Upper James Street (Hamilton, Ontario) — Upper James Street, is an Upper City (mountain) arterial road in Hamilton, Ontario, Canada. It starts at the Claremont Access , a mountain access road in the north, and extends southward towards the John C. Munro Hamilton International Airport… …

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  • 7Air traffic control — For the Canadian musical group, see Air Traffic Control (band). Airport Traffic Control Towers (ATCTs) at Amsterdam s Schiphol Airport, the Netherlands …

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  • 8Air Force reports on the Roswell UFO incident — The two Air Force reports on the Roswell UFO incident, published in 1994/5 and 1997, form the basis for much of the skeptical explanation for the 1947 incident, the purported recovery of aliens and their craft from the vicinity of Roswell, New… …

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  • 9List of Royal Air Force Conversion Units — Royal Air Force Conversion Units Ensign of the Royal Air Force Conversion Units and Operational Conversion Units (OCU) were training units of the Royal Air Force. Contents …

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  • 10Tropical cyclone observation — has been carried out over the past couple of centuries in various ways. The passage of typhoons, hurricanes, as well as other tropical cyclones have been detected by word of mouth from sailors recently coming to port or by radio transmissions… …

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