Concept
mass_concentration_of_miscellaneous_phytoplankton_expressed_as_chlorophyll_in_sea_water
| URI | http://vocab.nerc.ac.uk/collection/P07/current/CF14N13/1/ | |
|---|---|---|
| Within Vocab | Climate and Forecast Standard Names | |
| Alternative Labels | ||
| 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 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. Chlorophyll is the green pigment found in most plants, algae and cyanobacteria. The presence of chlorophyll is essential for photosynthesis to take place. There are five different forms of chlorophyll that occur naturally. All contain a chlorin ring (chemical formula C20H16N4) which gives the green pigment and a side chain whose structure varies. The naturally occurring forms of chlorophyll contain between 35 and 55 carbon atoms. 'Miscellaneous phytoplankton' are all those phytoplankton that are not diatoms, diazotrophs, calcareous phytoplankton, picophytoplankton or other seperately named components of the phytoplankton population. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. | |
| Date | None | |
| Identifier | CF14N13 | |
| Note | accepted | |
| Is Version Of | CF14N13 | |
| version | 1 | |
Alternate Formats
Other formats for this page:
RDF/XML Turtle JSON-LDAlternate Profiles
Other views of this page:
Alternate Profiles ?Different Media Types (HTML, text, RDF, JSON etc.) and different information model views, profiles, are available for this resource.
NVS html view ? Default NVS html view.
