Concept
mass_fraction_of_noy_expressed_as_nitrogen_in_air
| URI | http://vocab.nerc.ac.uk/collection/P07/current/CF12N407/2/ | ||
|---|---|---|---|
| Within Vocab | Climate and Forecast Standard Names | ||
| Alternative Labels | |||
| Definition | "Mass fraction" is used in the construction "mass_fraction_of_X_in_Y", where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Noy" describes a family of chemical species. The family usually includes atomic nitrogen (N), nitrogen monoxide (NO), nitrogen dioxide (NO2), dinitrogen pentoxide (N2O5), nitric acid (HNO3), peroxynitric acid (HNO4), bromine nitrate (BrONO2) , chlorine nitrate (ClONO2) and organic nitrates (most notably peroxyacetyl nitrate, sometimes referred to as PAN, (CH3COO2NO2)). The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. | ||
| Date | 2019-03-04T17:29:46 | ||
| Identifier | SDN:P07::CF12N407 | ||
| Note | accepted | ||
| Is Version Of | CF12N407 | ||
| Previous Version | 1 | ||
| version | 2 | ||
| Same As | MMI | http://mmisw.org/ont/cf/parameter/mass_fraction_of_noy_expressed_as_nitrogen_in_air | |
| CF | http://vocab.nerc.ac.uk/standard_name/mass_fraction_of_noy_expressed_as_nitrogen_in_air/ | ||
| Broader | P02:AAMN |
Concentration of nitrogen species in the atmosphere | |
P04:G161 |
EARTH SCIENCE > Atmosphere > Atmospheric Chemistry/Nitrogen Compounds > Nitrogen Oxides | ||
| Related | P06:UUUU |
Dimensionless | |
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