Meteorology

Meteorology

A database of terms pertaining to the scientific study of the atmosphere.

Industry: Weather

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Meteorology

quasigeostrophic current

Weather; Meteorology

A current in which an approximate geostrophic balance between Coriolis and pressure gradient forces holds, but for which other terms, generally the inertial terms involving temporal change or ...

path line

Weather; Meteorology

A curve along which a fluid particle travels.

snow crust

Weather; Meteorology

A crisp, firm, outer surface upon snow. Basically, three types of snow crusts exist, formed by 1) the refreezing of surface snow, after melting and/or wetting, to form a hard layer of snow (sun ...

pyrocumulus

Weather; Meteorology

A cumulus cloud formed by a rising thermal from a fire, or enhanced by buoyant plume emissions from an industrial combustion process. See'' also'' venting mixed layer air.

pressure coordinates

Weather; Meteorology

A coordinate system in which atmospheric pressure is taken as the vertical coordinate. Compare θ coordinate system.

A core of strong westerly winds that develop during autumn and winter in the upper stratosphere and mesosphere near the boundary of the polar night. Radiative cooling in the polar night appears to ...

rhumb-line course

Weather; Meteorology

A course, route, or track over the earth along which the angle between the course and true north is everywhere the same. The rhumb-line course is longer than a great-circle course, and its main ...