gsw_specvol_anom
specific volume anomaly (48-term equation)
Contents
USAGE:
specvol_anom = gsw_specvol_anom(SA,CT,p)
DESCRIPTION:
Calculates specific volume anomaly from Absolute Salinity, Conservative
Temperature and pressure. It uses the computationally-efficient 48-term
expression for density as a function of SA, CT and p (McDougall et al.,
2011). The reference value of Absolute Salinity is SSO and the
reference value of Conservative Temperature is equal to 0 degress C.
INPUT:
SA = Absolute Salinity [ g/kg ]
CT = Conservative Temperature [ deg C ]
p = sea pressure [ dbar ]
( i.e. absolute pressure - 10.1325 dbar )
SA & CT need to have the same dimensions.
p may have dimensions 1x1 or Mx1 or 1xN or MxN, where SA & CT are MxN.
OUTPUT:
specvol_anom = specific volume anomaly [ m^3/kg ]
EXAMPLE:
SA = [34.7118; 34.8915; 35.0256; 34.8472; 34.7366; 34.7324;]
CT = [28.8099; 28.4392; 22.7862; 10.2262; 6.8272; 4.3236;]
p = [ 10; 50; 125; 250; 600; 1000;]
specvol_anom = gsw_specvol_anom(SA,CT,p)
specvol_anom =
1.0e-005 *
0.601005694856401
0.578559312084076
0.405540722918385
0.142144553233903
0.104304693754049
0.076366488048843
AUTHOR:
Paul Barker and Trevor McDougall [ help@teos-10.org ]
VERSION NUMBER:
3.01 (26th May, 2011)
REFERENCES:
IOC, SCOR and IAPSO, 2010: The international thermodynamic equation of
seawater - 2010: Calculation and use of thermodynamic properties.
Intergovernmental Oceanographic Commission, Manuals and Guides No. 56,
UNESCO (English), 196 pp. Available from the TEOS-10 web site.
See Eqn. (3.7.3) of this TEOS-10 Manual.
McDougall T.J., P.M. Barker, R. Feistel and D.R. Jackett, 2011: A
computationally efficient 48-term expression for the density of
seawater in terms of Conservative Temperature, and related properties
of seawater. To be submitted to Ocean Science Discussions.
The software is available from http://www.TEOS-10.org