Weather

Weather

Of or pertaining to the state of the atmosphere and/or the science of monitoring, measuring and interpreting meteorological changes.

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Weather > Meteorology

Köhler equation

Weather; Meteorology

A relationship between the radius of a cloud droplet grown on a hygroscopic nucleus of a given dry mass, which decreases the vapor pressure with respect to a flat surface, and the ...

loop rating

Weather; Meteorology

A rating curve that has higher values of discharge for a certain stage when the river is rising than it does when the river is falling. Occasionally, the stage discharge curve ...

lightning echo

Weather; Meteorology

A radar echo from lightning. Lightning echoes are explained by the scattering of radar waves by the high concentration of free electrons created in the narrow channel of a ...

Langmuir probe

Weather; Meteorology

A probe used to measure the electron temperature of ionized plasmas. Langmuir probes mounted on spacecraft are often used to measure the electron temperature of the earth's ...

klystron

Weather; Meteorology

A power amplifier tube used to amplify weak microwave energy (provided by a radio- frequency exciter) to a high power level for a radar transmitter. A klystron is characterized by ...

large eddy model

Weather; Meteorology

A numerical model with an averaging volume sufficiently small that the eddies contained entirely within it (i.e., the unresolved eddies) are of inertial-range scales and smaller. ...

level of concern

Weather; Meteorology

A pollutant concentration level (specific to the averaging time being considered) associated with a condition of exposure, often for sensitive population groups. Concentrations ...