gsw_melting_ice_equilibrium_SA_CT_ratio_poly {gsw} | R Documentation |
Calculate d(SA)/d(CT) for Ice Melting in near-freezing Seawater (Polynomial version)
gsw_melting_ice_equilibrium_SA_CT_ratio_poly(SA, p)
SA |
Absolute Salinity [ g/kg ] |
p |
sea pressure [dbar], i.e. absolute pressure [dbar] minus 10.1325 dbar |
The present R function works with a wrapper to a C function contained within the GSW-C system (Version 3.05-4 dated 2017-08-07, available at https://github.com/TEOS-10/GSW-C, as git commit '5b4d959e54031f9e972f3e863f63e67fa4f5bfec'), which stems from the GSW-Fortran system (https://github.com/TEOS-10/GSW-Fortran) which in turn stems from the GSW-Matlab system (https://github.com/TEOS-10/GSW-Matlab). Consult http://www.teos-10.org to learn more about these software systems, their authorships, and the science behind it all.
ratio of change in SA
to change in CT
[ g/kg/degC ].
http://www.teos-10.org/pubs/gsw/html/gsw_melting_ice_equilibrium_SA_CT_ratio_poly.html
SA <- c( 34.7118, 34.8915, 35.0256, 34.8472, 34.7366, 34.7324) p <- c( 10, 50, 125, 250, 600, 1000) r <- gsw_melting_ice_equilibrium_SA_CT_ratio_poly(SA, p) expect_equal(r, c(0.420209444587263, 0.422511664682796, 0.424345538275708, 0.422475965003649, 0.422023755182266, 0.423038080717229))