- Industry: Weather
- Number of terms: 60695
- Number of blossaries: 0
- Company Profile:
The American Meteorological Society promotes the development and dissemination of information and education on the atmospheric and related oceanic and hydrologic sciences and the advancement of their professional applications. Founded in 1919, AMS has a membership of more than 14,000 professionals, ...
A radar system of extremely wide bandwidth and high range resolution, usually implemented by the direct radiation of a very short (≈1 ns) video pulse rather than the transmission of a short burst of a carrier wave.
Industry:Weather
A pyrotechnic device used in weather modification or cloud seeding to produce a controlled release of seeding agent from an aircraft.
Industry:Weather
A propagating disturbance that is characterized by a sudden and relatively permanent change in the height of a horizontal fluid interface and in the velocity of the fluid beneath the interface with oscillations of its depth, and of wind and temperature characteristics within it. A classic example in the atmosphere is the morning glory phenomenon in Australia triggered by the sea breeze, which is characterized by a smooth band of cloud along the leading edge reminiscent of a gust-front arc cloud, and other interface bands along the wave crests of the following lower-amplitude waves. Undular bores can also occur in advance of cold-air outflows (gust fronts) from thunderstorms. Compare gravity current.
Industry:Weather
A process of clearing warm fog by enhancing drop coalescence growth by a high pressure and high volume water spray.
Industry:Weather
A process of charge separation that involves the rubbing together of dissimilar material surfaces. The triboelectric series is a classification scheme for the ordering of the tendency for positive charge acquisition in rubbing. The detailed physical mechanism in triboelectrification is a long unsolved problem.
Industry:Weather
A positively buoyant unmanned balloon attached to a cable that is used to raise and lower the balloon. Instrument packages are suspended from the balloon to measure characteristics such as air temperature, winds, humidity, refractive index, trace gases, and aerosols as functions of time (by keeping the height constant) or height (by raising and lowering the balloon). They have been used for measuring both mean values and turbulent fluctuations. Balloon heights of over a kilometer have been reached, and instrument packages are sometimes deployed at more than one height below the balloon. Tethered balloons have been deployed from fixed locations over land and from ships.
Industry:Weather
A popular term for the incus (“anvil”) of a cumulonimbus cloud; or, less appropriately, the upper portion of a swelling cumulus, or the entire cumulonimbus.
Industry:Weather
