20 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
Mixed-layer evolution
Weather; Meteorology
The three-part change of the atmospheric boundary layer that typically occurs during fair weather over land on sunny days. In the early morning, the mixed layer is shallow, slowly deepening, cool (in ...
Minor ridge
Weather; Meteorology
A ridge of smaller scale than a long-wave ridge. It ordinarily moves rapidly and is associated with a migratory anticyclonic disturbance in the lower troposphere. See short wave.
Mini-supercell
Weather; Meteorology
Convective storm that contains similar radar characteristics to those of a supercell (e.g., hook echo, WER, BWER), but is significantly smaller in height and width. The diameter of the radar-detected ...
Minimum thermometer
Weather; Meteorology
A thermometer that automatically registers the lowest temperature attained during an interval of time. The alcohol-in-glass minimum thermometer contains a dumbbell-shaped index that is kept on the ...
Minimum annual flow
Weather; Meteorology
The smallest observed streamflow value during a water year. May be either an instantaneous value, the smallest 24-hour average, or an average over a longer period of time.
Macroburst
Weather; Meteorology
A downburst on the misoscale. Bow echoes are often associated with macrobursts. See also microburst.
Macroclimate
Weather; Meteorology
The general large-scale climate of a large area or country, as distinguished from the mesoclimate and microclimate.
