Concept
mass_fraction_of_terpenes_in_air
| URI | http://vocab.nerc.ac.uk/collection/P07/current/CF12N416/1/ | |
|---|---|---|
| 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 species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. Terpenes are hydrocarbons, that is, they contain only hydrogen and carbon combined in the general proportions (C5H8)n where n is an integer greater than on equal to one. The term "terpenes" is used in standard names to describe the group of chemical species having this common structure that are represented within a given model. 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. Standard names exist for some individual terpene species, e.g., isoprene and limonene. | |
| Date | None | |
| Identifier | CF12N416 | |
| Note | accepted | |
| Is Version Of | CF12N416 | |
| version | 1 | |
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