Potential Enthalpy of Ice

Usage

gsw_pot_enthalpy_from_pt_ice(pt0_ice)

Arguments

pt0_ice: potential temperature of ice (ITS-90) [ degC ]

Value

potential enthalpy [ J/kg ]

Implementation Note

This R function uses a wrapper to a C function contained within the GSW-C system as updated 2022-10-11 at https://github.com/TEOS-10/GSW-C with git commit `657216dd4f5ea079b5f0e021a4163e2d26893371`.

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_pot_enthalpy_from_pt_ice.html

Other things related to enthalpy: gsw_CT_from_enthalpy(), gsw_dynamic_enthalpy(), gsw_enthalpy(), gsw_enthalpy_CT_exact(), gsw_enthalpy_diff(), gsw_enthalpy_first_derivatives(), gsw_enthalpy_first_derivatives_CT_exact(), gsw_enthalpy_ice(), gsw_enthalpy_t_exact(), gsw_frazil_properties_potential(), gsw_frazil_properties_potential_poly(), gsw_pot_enthalpy_from_pt_ice_poly(), gsw_pot_enthalpy_ice_freezing(), gsw_pot_enthalpy_ice_freezing_poly(), gsw_pt_from_pot_enthalpy_ice(), gsw_pt_from_pot_enthalpy_ice_poly(), gsw_specvol_first_derivatives(), gsw_specvol_first_derivatives_wrt_enthalpy()

Examples

pt0_ice <- c(-10.7856, -13.4329, -12.8103, -12.2600,  -10.8863,  -8.4036)
e <- gsw_pot_enthalpy_from_pt_ice(pt0_ice)
stopifnot(all.equal(e/1e5, c(-3.555459449611868, -3.608607069998877, -3.596153890859193,
                             -3.585123178806596, -3.557490528226009, -3.507198313847837)))