gsw_enthalpy_ice {gsw} | R Documentation |
Ice Specific Enthalpy
Description
Specific enthalpy of ice [ J/kg ]. Note that this is a negative quantity.
Usage
gsw_enthalpy_ice(t, p)
Arguments
t |
in-situ temperature (ITS-90) [ degC ] |
p |
sea pressure [dbar], i.e. absolute pressure [dbar] minus 10.1325 dbar |
Value
specific enthalpy [ J/kg ]
Implementation Note
This R function uses a wrapper to a C function contained within the GSW-C system as updated 2021-12-28 at https://github.com/TEOS-10/GSW-C with git commit '98f0fd40dd9ceb0ba82c9d47ac750e935a7d0459'.
The C function uses data from the library/gsw_data_v3_0.mat
file provided in the GSW-Matlab source code, version 3.06-11.
Unfortunately, this version of the mat file is no longer displayed on the
TEOS-10.org website. Therefore, in the interests of making GSW-R be
self-contained, a copy was downloaded from
http://www.teos-10.org/software/gsw_matlab_v3_06_11.zip on 2022-05-25,
the .mat file was stored in the developer/create_data directory of
https://github.com/TEOS-10/GSW-R, and then the dataset used in GSW-R
was created based on that .mat file.
Please consult http://www.teos-10.org to learn more about the various TEOS-10 software systems.
References
http://www.teos-10.org/pubs/gsw/html/gsw_enthalpy_ice.html
See Also
Other things related to enthalpy:
gsw_CT_from_enthalpy()
,
gsw_dynamic_enthalpy()
,
gsw_enthalpy_CT_exact()
,
gsw_enthalpy_diff()
,
gsw_enthalpy_first_derivatives_CT_exact()
,
gsw_enthalpy_first_derivatives()
,
gsw_enthalpy_t_exact()
,
gsw_enthalpy()
,
gsw_frazil_properties_potential_poly()
,
gsw_frazil_properties_potential()
,
gsw_pot_enthalpy_from_pt_ice_poly()
,
gsw_pot_enthalpy_from_pt_ice()
,
gsw_pot_enthalpy_ice_freezing_poly()
,
gsw_pot_enthalpy_ice_freezing()
,
gsw_pt_from_pot_enthalpy_ice_poly()
,
gsw_pt_from_pot_enthalpy_ice()
,
gsw_specvol_first_derivatives_wrt_enthalpy()
,
gsw_specvol_first_derivatives()
Examples
t <- c(-10.7856, -13.4329, -12.8103, -12.2600, -10.8863, -8.4036)
p <- c( 10, 50, 125, 250, 600, 1000)
se <- gsw_enthalpy_ice(t, p)
stopifnot(all.equal(se/1e5, c(-3.554414597446597, -3.603380857687490, -3.583089884253586,
-3.558998379233944, -3.494811024956881, -3.402784319238127)))