Concept
Mass fraction of methane in air
| URI | http://vocab.nerc.ac.uk/standard_name/mass_fraction_of_methane_in_air/ | ||
|---|---|---|---|
| Within Vocab | Climate and Forecast Standard Names | ||
| 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 chemical formula for methane is CH4. Methane is a member of the group of hydrocarbons known as alkanes. There are standard names for the alkane group as well as for some of the individual species. | ||
| Date | None | ||
| Note | accepted | ||
| modified | 2019-03-04 17:29:46.0 | ||
| Broad Match | P02:AALK |
Concentration of alkanes in the atmosphere | |
P04:G138 |
EARTH SCIENCE > Atmosphere > Atmospheric Chemistry/Carbon and Hydrocarbon Compounds > Methane | ||
| Exact Match | http://mmisw.org/ont/cf/parameter/mass_fraction_of_methane_in_air | ||
| http://vocab.nerc.ac.uk/standard_name/mass_fraction_of_methane_in_air/ | |||
P07:CF12N391 |
mass_fraction_of_methane_in_air | ||
| Related | P06:UUUU |
Dimensionless | |
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