Meteorology

Meteorology

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

Contributors in Meteorology

Meteorology

On a thermodynamic diagram, an isopleth of equivalent potential temperature or pseudoequivalent potential temperature. Moist adiabats on most diagrams are drawn for the pseudoadiabatic process, in ...

Moisture

Weather; Meteorology

In meteorology, a general term usually referring to the water vapour content of the atmosphere, or to the total water substance (gaseous, liquid, and solid) present in a given volume of air. In ...

Saturation-adiabatic process

Weather; Meteorology

An adiabatic process for which the air is saturated and may contain liquid water. A distinction is made between the reversible process, in which total water is conserved, and the pseudoadiabatic or ...

Monochromatic radiation

Weather; Meteorology

Radiation taken over a sufficiently small spectral interval that the radiance is invariant with wavelength. Compare narrowband radiation, broadband radiation.

Monostatic radar

Weather; Meteorology

The most common radar system configuration, with the radar receiver at the same location as the radar transmitter. In such a system, surfaces of constant range are spheres centred at the radar site, ...

Monochromatic

Weather; Meteorology

1. characterised by a single frequency. For example, a monochromatic (or time harmonic) electromagnetic wave is one with a single frequency. Although monochromatic originally meant characterised by a ...

Moment of inertia

Weather; Meteorology

For a system of point masses, the sum of the product of each mass and the square of its perpendicular (minimum) distance from a given axis. For a continuous mass distribution, the sum becomes an ...