sea_water_potential_density

https://w3id.org/hacid/data/cs/variables/cf/sea_water_potential_density <https://w3id.org/hacid/onto/data/Variable>

Sea water potential density is the density a parcel of sea water would have if moved adiabatically to a reference pressure, by default assumed to be sea level pressure. To specify the reference pressure to which the quantity applies, provide a scalar coordinate variable with standard name reference_pressure. The density of a substance is its mass per unit volume. For sea water potential density, if 1000 kg m-3 is subtracted, the standard name sea_water_sigma_theta should be chosen instead. rdf:langString
rdf:langString sea_water_potential_density 

data from the linked data cloud