Meteorology

Meteorology

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

Industry: Weather

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Meteorology

sahel

Weather; Meteorology

1. The region of poor and intermittent rains south of the Sahara Desert in Africa. 2. A strong dust-bearing desert wind in Morocco.

1. The previous value in a time series. Thus, if ''x''(''t'') denotes the present value, the value of persistence would be ''x''(''t'' − 1), whence the latter value is regarded as “persisting. ” It ...

peak power

Weather; Meteorology

1. The power averaged over that carrier-frequency cycle that occurs when the power is maximum (usually one-half the maximum instantaneous power). In radar, the transmitted power averaged over one ...

roll cloud

Weather; Meteorology

1. The popular term for arcus. 2. A low-level, horizontal, tube-shaped arcus cloud associated with a gust front of a convective storm (or occasionally a cold front). Roll clouds are relatively rare; ...

seiche

Weather; Meteorology

1. The oscillation of a body of water at its natural period. Coastal measurements of sea level often show seiches with amplitudes of a few centimeters and periods of a few minutes due to oscillations ...

particulate loading

Weather; Meteorology

1. The mass of suspended particulate aerosols per mass or volume of air. 2. A measure of the amount of mass of particulates per unit time that activities in a region generate in the atmosphere. If a ...

radiation laws

Weather; Meteorology

1. The four physical laws or equations that are most commonly used to explain the emission of radiation: 1) Kirchhoff's law; 2) Planck's law; 3) Stefan–Boltzmann law; and 4) Wien's displacement law. ...