gsw_melting_ice_SA_CT_ratio {gsw} | R Documentation |
Calculate d(SA)/d(CT) for Ice Melting in Seawater
gsw_melting_ice_SA_CT_ratio(SA, CT, p, t_Ih)
SA |
Absolute Salinity [ g/kg ] |
CT |
Conservative Temperature [ degC ] |
p |
sea pressure [dbar], i.e. absolute pressure [dbar] minus 10.1325 dbar |
t_Ih |
initial temperature of ice [ degC ] |
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_SA_CT_ratio.html
SA <- c( 34.7118, 34.8915, 35.0256, 34.8472, 34.7366, 34.7324) CT <- c( 3.7856, 3.4329, 2.8103, 1.2600, 0.6886, 0.4403) p <- c( 10, 50, 125, 250, 600, 1000) t_Ih <- c(-10.7856, -13.4329, -12.8103, -12.2600, -10.8863, -8.4036) r <- gsw_melting_ice_SA_CT_ratio(SA, CT, p, t_Ih) expect_equal(r, c(0.373840909022490, 0.371878514972099, 0.377104664622191, 0.382777696796156, 0.387133845152000, 0.393947316026914))