Meteorology

Meteorology

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

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Meteorology

Neutron

Weather; Meteorology

An uncharged subatomic particle. The rest mass of the neutron is slightly greater than that of the proton. Atomic nuclei are composed of protons and neutrons bound together by nuclear forces. The ...

Nival

Weather; Meteorology

Characterised by snow or a snowy environment.

Nitrous oxide

Weather; Meteorology

Colourless gas, formula N 2 O, released by bacterial activity at the earth's surface. It has an atmospheric lifetime of about 160 years and is currently present at a level of about 330 ppb. Its ...

Nitrous acid

Weather; Meteorology

1. Weak acid formed in solution by neutralisation of the nitrite ion. Also formed when nitrogen dioxide, NO 2 , dissolves in water. 2. Gaseous compound, formula HONO, that builds up in polluted, ...

Certain plants (mostly leguminous) that are capable of biological conversion of molecular dinitrogen (atmospheric nitrogen, or N 2 ) to organic combinations (nitrogen fixation), or to forms usable in ...

Noctilucent clouds

Weather; Meteorology

Thin silvery-blue cirrus-like clouds frequently seen during summer twilight conditions at high latitudes (above 50°) in both hemispheres. They are the highest visible clouds in the atmosphere, ...

Classical mechanics

Weather; Meteorology

A system of mechanics based on Newton's laws of motion. The salient characteristics of Newtonian mechanics are that mass and energy are separately conserved, all physical variables can take on a ...