Meteorology

Meteorology

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

Contributors in Meteorology

Meteorology

A four-dimensional data assimilation method that provides an estimate of the model state by evolving explicitly the error covariance of the state estimate. Variants of the Kalman philtre algorithm ...

Line of sight path

Weather; Meteorology

An unimpeded path between two points in the atmosphere determined by the trajectory of a ray between them. Sometimes synonymous with optical path, a term that may, however, be a shortened form of ...

Line of sight

Weather; Meteorology

An unimpeded path between two points in the atmosphere determined by the trajectory of a ray between them. Sometimes synonymous with optical path, a term that may, however, be a shortened form of ...

Krypton (Kr)

Weather; Meteorology

An inert element, fourth member of the noble gas family, atomic number 36, atomic weight 83. 7; an element found in the atmosphere to the extent of only 0. 000114% by volume.

Kurtosis

Weather; Meteorology

(Symbol β2 or α4. ) A descriptive measure of a random variable in terms of the flatness of its probability distribution. It is defined as follows: where μ4 is the fourth (statistical) moment about ...

Large eddy simulation (LES)

Weather; Meteorology

1. A three-dimensional numerical simulation of turbulent flow in which large eddies (with scales smaller than the overall dimension of the problem in question) are resolved and the effects of ...

Lenticularis

Weather; Meteorology

A cloud species the elements of which have the form of more or less isolated, generally smooth lenses or almonds; the outlines are sharp and sometimes show irisation. These clouds appear most often ...