5 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
junction streamer
Weather; Meteorology
The process by which negative charge centers at successively more distant locations in a thundercloud are “tapped” for discharge by successive strokes of cloud-to-ground lightning.
length of record
Weather; Meteorology
The period during which observations have been maintained at a meteorological station, and which serves as the frame of reference for climatic data at that station. The standard length of record for ...
Loop Current
Weather; Meteorology
The passage of water through the Gulf of Mexico from Yucatan Strait to the Straits of Florida and the connection between the Caribbean and Florida Currents. The Loop Current is part of the western ...
killing freeze
Weather; Meteorology
The occurrence of air temperature below 0°C (32°F) that kills annual vegetation without formation of frost crystals on surfaces. See freeze, dry freeze, hard freeze, light freeze.
light freeze
Weather; Meteorology
The occurrence of air temperature below 0°C (32°F) that kills some, but not all, annual vegetation. This often occurs in the 0° to −1°C (32°–30°F) range. See freeze.
Kp
Weather; Meteorology
The most widely used of all the indices of geomagnetic activity. It is intended as a measure of the worldwide (“p” is for planetary) average level of activity; however, it is very sensitive to ...
local isotropy
Weather; Meteorology
The near-isotropic property exhibited by the high-frequency or finescale portion of otherwise nonisotropic turbulence that occurs at sufficiently large Reynolds numbers. See isotropic turbulence.
