gsw (version 1.0-5)

gsw_sound_speed_t_exact: Sound Speed in Seawater

Description

Sound Speed in Seawater

Usage

gsw_sound_speed_t_exact(SA, t, p)

Arguments

SA

Absolute Salinity [ g/kg ]

t

in-situ temperature (ITS-90) [ degC ]

p

sea pressure [dbar], i.e. absolute pressure [dbar] minus 10.1325 dbar

Value

sound speed [ m/s ]

Details

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.

References

http://www.teos-10.org/pubs/gsw/html/gsw_sound_speed_t_exact.html

See Also

Other things related to sound: gsw_sound_speed_ice, gsw_sound_speed

Examples

# NOT RUN {
SA <- c(34.7118, 34.8915, 35.0256, 34.8472, 34.7366, 34.7324)
CT <- c(28.7856, 28.4329, 22.8103, 10.2600,  6.8863,  4.4036)
p <- c(      10,      50,     125,     250,     600,    1000)
sound_speed <- gsw_sound_speed_t_exact(SA,CT,p)
expect_equal(sound_speed/1e3, c(1.542615803587414, 1.542703534065789, 1.530844979136360,
                              1.494409996920661, 1.487377102518027, 1.483934609078705))
# }