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

lunar rainbow

Weather; Meteorology

A rainbow formed when the light source is the moon rather than the sun. Even though the optics of both is the same, the luminance of the lunar rainbow is much lower. As a result ...

orographic cyclogenesis

Weather; Meteorology

The synoptic-scale development of an atmospheric cyclonic circulation on the downwind side of a mountain range. The “lee” side is relative to the mean background airflow. Weak ...

kanat

Weather; Meteorology

A mildly sloping tunnel, with the upper end below the water table of an alluvial aquifer, that is used to collect and transmit water to a lower-elevation surface outlet.

Lenard effect

Weather; Meteorology

The separation of electric charges accompanying the aerodynamic breakup of water drops, first studied systematically by the German physicist P. Lenard (1892). Experiments have ...

large ion

Weather; Meteorology

An ion of relatively large mass and low mobility that is produced by the attachment of a small ion to an Aitken nucleus. Large ions were discovered by P. Langevin and are ...

laminar flow

Weather; Meteorology

A flow regime in which fluid motion is smooth and orderly, and in which adjacent layers or laminas slip past each other with little mixing between them. Exchange of material ...

longitudinal rolls

Weather; Meteorology

Atmospheric coherent structures in the form of persistent organized counterrotating roll vortices that are approximately aligned with the mean wind and span the depth of the ...