Compute seawater absolute salinity, according to the GSW/TEOS-10 formulation.
either practical salinity (in which case
pressure in dbar.
longitude of observation.
latitude of observation.
The absolute salinity is calculated using the GSW function
gsw_SA_from_SP. Typically, this is a fraction of a unit
higher than practical salinity as defined in the UNESCO formulae.
Absolute Salinity in g/kg.
McDougall, T.J. and P.M. Barker, 2011: Getting started with TEOS-10 and the Gibbs Seawater (GSW) Oceanographic Toolbox, 28pp., SCOR/IAPSO WG127, ISBN 978-0-646-55621-5.
The related TEOS-10 quantity “conservative temperature” may be
swConservativeTemperature. For a ctd object,
absolute salinity may also be recovered by indexing as e.g.
Other functions that calculate seawater properties:
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