Radiosonde Observation (Upper-Air Observation)
Rapid Deepening
A decrease in the minimum sea-level pressure of a tropical cyclone of 1.75 mb/hr or 42 mb for 24 hours ...
RAOB - RAdiosonde OBservation
SAB - Satellite Applications Branch (old. NESDIS)
SAFIRE - Spectroscopy of the Atmosphere using Far InfraRed Emission
SAGE - Stratospheric Aerosol and Gas Experiment (EOS) ...
RAOB—A radiosonde observation.
rawin—A rawinsonde observation.
rawinsonde observation—A combined winds aloft and radiosonde observation. Winds are determined by tracking the radiosonde by radio direction finder or radar.
Rabal A method of winds aloft observation essentially the same as a pilot balloon observation except the height data is derived from the radiosonde observation rather than from assumed ascension rates.
RAOB: A radiosonde observation.
RAREP: Acronym for "Radar Weather Report".
RAWIN: A rawinsonde observation.
RAWINSONDE: Tracking a radiosonde aloft to determine the wind speed and directions up to 100,000+ feet.
8D technique"(Also called frost point technique.) A technique for using the radiosonde observation to determine the presence of liquid water droplets in supercooled clouds in saturated or nearly saturated layers of air.
The information is supplied by radiosonde observations, principally. Constant-pressure charts are routinely constructed at standard air pressures. Standard air pressures are 850, 700, 500, 400, 300, 250, and 200 millibars (hectopascals) (hPa) (SI).
It is a radiosonde observation combined with a winds-aloft observation, called a rawin.
RAOB An acronym for Radiosonde Observation. See Radiosonde.
Rapid Deepening A decrease in the minimum sea-level pressure of a tropical cyclone of 1.75 mb/hr or 42 mb for 24 hours.
Rawinsonde observation A radiosonde observation that includes wind data.
Reflection The process whereby a surface turns back a portion of the radiation that strikes it.
SOUNDING A plot of the atmosphere, using data rom upper air or radiosonde observations. Usually confined to a vertical profile of the temperatures, dew points, and winds above a fixed location.
RAWINSONDE An upper air observation that evaluates the winds, temperature, relative humidity, and pressure aloft by means of a balloon-attached radiosonde that is tracked by a radar or radio direction-finder. It is a radiosonde observation ...
2. In meteorology, same as upper-air observation. However, a common connotation is that of a single complete set of radiosonde observations. 3. The measurement of the depth of water beneath a vessel.
Radiosonde observations generally are taken twice a day (0000 and 1200 UTC) around the globe. NOAA's National Weather Service (NWS) operates a network of about 90 radiosonde observing sites in the U.S. and its territories.
 See also: Radiosonde, Temperature, Observation, Surface, Pressure
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