# gsw_t_from_pt0_ice

    in-situ temperature of ice from potential temperature
    with p_ref = 0 dbar

## Contents

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

## USAGE:

    t_ice = gsw_t_from_pt0_ice(pt0_ice,p)

## DESCRIPTION:

    Calculates in-situ temperature from potential temperature with a
    reference pressure of 0 dbar of ice.

    It is also possible to calculate in-situ temperature from potential
    temparature using the function gsw_pt_from_t_ice.  In this case it
    would be called with potential temperature referenced to 0 dbar,
    pt0, and the in-situ pressure (i.e. gsw_pt_from_t_ice(pt0_ice,0,p)).

## INPUT:

    pt0_ice =  potential temperature of ice                           [ deg C ]
               with reference sea pressure (pr) = 0 dbar.
    Note. The reference sea pressure of the input, pt0_ice, is zero dbar.
    p      =   sea pressure                                            [ dbar ]
             ( i.e. absolute pressure - 10.1325 dbar )

    p may have dimensions 1x1 or Mx1 or 1xN or MxN, where pt0_ice is MxN.

## OUTPUT:

    t_ice   =  in-situ temperature of ice (ITS-90)                    [ deg C ]

## EXAMPLE:

    pt0_ice = [-10.7856; -13.4329; -12.8103; -12.2600;  -10.8863;  -8.4036;]
    p = [     10;      50;     125;     250;     600;    1000;]

    t_ice = gsw_t_from_pt0_ice(pt0_ice,p)

    t_ice =

      -10.783412084414074
      -13.422068638139141
      -12.783170223330448
      -12.205667526492039
      -10.755496924674144
       -8.184121042593350

## AUTHOR:

    Trevor McDougall and Paul Barker       [ help@teos-10.org ]

## VERSION NUMBER:

    3.05 (16th February, 2015)

## 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.

    The software is available from http://www.TEOS-10.org