The UNESCO equation of state


INTERFACE:

   REALTYPE function unesco(S,T,p,UNPress)
DESCRIPTION:

Computes the in-situ density in (244) according to the UNESCO equation of state for sea water (see Fofonoff and Millard (1983)). The pressure dependence can be switched on (UNPress=.true.) or off (UNPress=.false.). S is salinity $ S$ in psu, T is potential temperature $ \theta$ in $ ^{\circ}$C (ITS-90), p is gauge pressure (absolute pressure - 10.1325 bar) and unesco is the in-situ density in kgm$ ^{-3}$. The check value is unesco(35,25,1000) = 1062.53817 .


USES:

   IMPLICIT NONE
INPUT PARAMETERS:
   REALTYPE, intent(in)                :: S,T,p
   LOGICAL, intent(in)                 :: UNPress
REVISION HISTORY:
   Original author(s): Hans Burchard & Karsten Bolding



Karsten Bolding 2012-12-28