pub fn sigma4(sa: f64, ct: f64) -> Result<f64>Expand description
Potential density anomaly with reference to sea pressure of 4000 dbar (75-term polynomial approximation)
Arguments
sa: Absolute Salinity [g kg-1]ct: Conservative Temperature (ITS-90) [deg C]p: sea pressure [dbar] (i.e. absolute pressure - 10.1325 dbar)