# gsw_specvol_anom_CT

    specific volume anomaly

## Contents

- USAGE:
- DESCRIPTION:
- INPUT:
- OUTPUT:
- EXAMPLE:
- AUTHOR:
- VERSION NUMBER:
- REFERENCES:

## USAGE:

    specvol_anom_CT = gsw_specvol_anom_CT(SA,CT,p)

## DESCRIPTION:

    Calculates specific volume anomaly from Absolute Salinity, Conservative
    Temperature and pressure.  The reference value of Absolute Salinity is
    SSO and the reference value of Conservative Temperature is equal to
    0 degress C.

    Note that this function uses the full Gibbs function.  There is an
    alternative to calling this function, namely
    gsw_specvol_anom_CT25(SA,CT,p), which uses the computationally efficient
    25-term expression for density in terms of SA, CT and p
    (McDougall et al., (2010)).  For SA, CT and p values which fall inside
    the oceanographic "funnel" (McDougall et al., 2010), this
    computationally efficient (i. e. faster) 25-term version fits the
    underlying laboratory density data almost as well as does the density
    derived from the full TEOS-10 Gibbs function.

    Click for a more detailed description of specific
    volume anomaly.

## INPUT:

    SA  =  Absolute Salinity                                        [ g/kg ]
    CT  =  Conservative Temperature                                [ deg C ]
    p   =  sea pressure                                             [ dbar ]
           (ie. 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_CT  =  specific volume anomaly                  [ kg m^-3 ]

## 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_CT = gsw_specvol_anom_CT(SA,CT,p)

    specvol_anom_CT =

     1.0e-005 *

      0.601043832858901
      0.578601553381862
      0.405565632906335
      0.142198842767438
      0.104351643832878
      0.076396789174221

## AUTHOR:

     Trevor McDougall and Paul Barker             [ help_gsw@csiro.au ]

## VERSION NUMBER:

    2.0 (26th August, 2010)

## 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., D. R. Jackett, P. M. Barker, C. Roberts-Thomson, R.
     Feistel and R. W. Hallberg, 2010:  A computationally efficient 25-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