Concept information
Preferred term
sea_water_sigma_theta
Definition
- Sigma-theta of sea water is the potential density (i.e. the density when moved adiabatically to a reference pressure) of water having the same temperature and salinity, minus 1000 kg m-3. Note that sea water sigma is not the same quantity as the dimensionless ocean sigma coordinate (see Appendix D of the CF convention), for which there is another standard name. To specify the reference pressure to which the quantity applies, provide a scalar coordinate variable with standard name reference_pressure.
Note
- Mapping to be determined
URI
https://vocab.met.no/CFSTDN/sea_water_sigma_theta
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