Meteorology

Meteorology

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

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Meteorology

nitrogen dioxide

Weather; Meteorology

A brown gas, formula NO 2 , found at all levels in the atmosphere. In the troposphere it photodissociates to give free oxygen atoms, which then form ozone, and is thus a key player in local and ...

nitrogen

Weather; Meteorology

(Symbol N. ) A colorless, tasteless, odorless gaseous element, atomic number 7, atomic weight 14. 007. It is the most abundant constituent of the atmosphere, amounting to 78. 09% by volume of dry ...

nitrogen cycle

Weather; Meteorology

A continuous series of natural processes by which nitrogen successively passes through air, soil, and organisms involving principally organism decay, nitrogen fixation, nitrification, and ...

A stable crystalline form of nitric acid and water, consisting of three molecules of water for every molecule of nitric acid. Polar stratospheric clouds (type I) may be in the form of NAT at least ...

nitric oxide

Weather; Meteorology

A colorless gas, formula NO, the most common form of nitrogen emitted into the atmosphere, either by fuel combustion or due to natural emissions. Nitric oxide is interconverted with nitrogen dioxide ...

nitrification

Weather; Meteorology

The process of converting reduced nitrogen (as ammonia or ammonium) to its more oxidized forms (nitrite or nitrate ions). It is a two-step process, with each step carried out by distinct groups of ...

nitric acid

Weather; Meteorology

A very soluble, acidic gas, formula HNO 3 , the end product of the oxidation of emitted gases. It is a major component of acidic precipitation in continental regions. In the clean background ...