13 Terms
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Meteorology
A database of terms pertaining to the scientific study of the atmosphere.
Industry: Weather
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Meteorology
on and off instruments
Weather; Meteorology
A description used by aircraft crews for flight conditions wherein the encountered flight weather alternately allows visual flight and requires instrument flight.
on top
Weather; Meteorology
In aviation terminology, descriptive of in-flight weather conditions that allow the use of modified visual flight techniques at flight level, but below which level the clouds and/or obscuring ...
one-and-a-half order closure
Weather; Meteorology
A higher-order closure for turbulence where forecast equations are retained for mean variables (e.g., first-order or first moment mean values of potential temperature and wind components), and for ...
omega sun
Weather; Meteorology
A two-image inferior mirage of the setting or rising sun in which the erect image of the solar disc, which forms the top of the omega, touches the inverted segment of the lower image, which forms the ...
ombroscope
Weather; Meteorology
An instrument that indicates the presence of precipitation. The ombroscope consists of a heated, water-sensitive surface that indicates by mechanical or electrical techniques the occurrence of ...
ombrometer
Weather; Meteorology
1. (Also called micropluviometer, trace recorder. ) Specifically, a rain gauge capable of measuring very small amounts of precipitation. 2. Any rain gauge.
ogive
Weather; Meteorology
1. A band or wave on the surface of a valley glacier, stretching from side to side and arched in the direction of flow. 2. The graph of a cumulative frequency distribution.
