Concept
Mass concentration of noy expressed as nitrogen in air
| URI | http://vocab.nerc.ac.uk/standard_name/mass_concentration_of_noy_expressed_as_nitrogen_in_air/ | ||
|---|---|---|---|
| Within Vocab | Climate and Forecast Standard Names | ||
| Definition | Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. "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. 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. | ||
| Date | None | ||
| Note | accepted | ||
| modified | 2009-07-06 15:41:29.0 | ||
| Broad Match | P02:AAMN |
Concentration of nitrogen species in the atmosphere | |
P04:G161 |
EARTH SCIENCE > Atmosphere > Atmospheric Chemistry/Nitrogen Compounds > Nitrogen Oxides | ||
| Exact Match | http://mmisw.org/ont/cf/parameter/mass_concentration_of_noy_expressed_as_nitrogen_in_air | ||
| http://vocab.nerc.ac.uk/standard_name/mass_concentration_of_noy_expressed_as_nitrogen_in_air/ | |||
P07:CF12N301 |
mass_concentration_of_noy_expressed_as_nitrogen_in_air | ||
| Related | P06:UKMC |
Kilograms per cubic metre | |
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