- 行业: Weather
- Number of terms: 60695
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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, ...
Use of binary numbers in a transmission to represent different conditions. The key aspect of these codes is that, in serial communications, they can be unprintable. See code forms.
Industry:Weather
Upper-air measurement of temperature and humidity made with a radiosonde attached to a free-flight sounding balloon. Synoptic (or operational) balloon soundings are typically made twice a day, at 0000 and 1200 UTC, from worldwide fixed land stations and from ships.
Industry:Weather
Unsaturated compound consisting of two carbon–carbon double bonds, formula CH2CHCHCH2; common constituent of automobile exhaust. Also used in the synthesis of artificial rubber for car tires.
Industry:Weather
Unburned fuel that escapes around the side of a piston in an internal combustion engine. See also crankcase ventilation.
Industry:Weather
Two tropical cyclones close enough together for their circulations to interact as the cyclones orbit around a translating point between them.
Industry:Weather
The western boundary current of the South Atlantic subtropical gyre. Fed by the South Equatorial Current, it flows as a narrow, swift current from 10°S southward along the South American coast. The Brazil Current is one of the weaker western boundary currents with a total transport of less than 30 Sv (30 × 106 m3s−1), half of this occurring over the shelf. Current speed is below or near 1 m s−1. The current separates from the coast somewhere between 33° and 38°S, forming a front with the northward flowing Malvinas (Falkland) Current and continuing southward on the eastern side of the front. The separation point is more northward in summer (December–February). The southernmost extent of the Brazil Current varies between 38° and 46°S on a two-month timescale associated with eddy shedding. The current continues eastward as the South Atlantic Current.
Industry:Weather
The unit of length used in graduating a mercury barometer in the centimeter-gram- second system. If the barometer is located at 45° latitude at sea level and its temperature is 0°C, a length increment of one baromil will correspond to a pressure increment of one millibar. Corrections must be applied at other locations.
Industry:Weather
The upvalley wind that blows from northeast by day in the Engadin, Switzerland, bringing fine weather. It occurs as a cold-air outbreak when an anticyclone is centered over northern France.
Industry:Weather
The transformation and transport of substances within and among the atmosphere, biosphere, hydrosphere, and lithosphere via biological, geological, and chemical processes that are often cyclical in nature.
Industry:Weather
