| Term | Sigma-t |
|---|---|
| Definition | Density of seawater calculated with in situ salinity and temperature, but pressure equal to zero, rather than the in situ pressure, and 1000 kg/m^3 is subtracted. Defined as (S,T)-1000 kg m-3, where (S,T) is the density of a sample of seawater at temperature T and salinity S, measured in kg m-3, at standard atmospheric pressure. |
| Sampling medium | Surface water |
| Aggregation type | Average |
| Units | g/kg kg/m³ |
| Provenance | Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. |
| Provenance uri | http://vocabulary.odm2.org/variablename/sigma_t/ |
| Category | - |
| Note | - |
| Status | ACCEPTED |