Ratio of Absolute to Preformed Salinity, minus 1
gsw_Fdelta(p, longitude, latitude)
sea pressure [dbar], i.e. absolute pressure [dbar] minus 10.1325 dbar
longitude in decimal degrees, positive to the east of Greenwich. (This
latitude in decimal degrees, positive to the north of the equator. (This
(S/Sstar)-1 [ unitless ]
This R function uses a wrapper to a C function
contained within the GSW-C system as updated 2021-03-27
with git commit 'f7bfebf44f686034636facb09852f1d5760c27f5'.
In turn, that C function uses data from the
file provided in the GSW-Matlab source code, version 3.06-11.
Unfortunately, this version 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
on 2021-0706, 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.
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p <- c( 10, 50, 125, 250, 600, 1000) latitude <- c( 4, 4, 4, 4, 4, 4) longitude <- c(188, 188, 188, 188, 188, 188) r <- gsw_Fdelta(p, longitude, latitude) stopifnot(all.equal(r/1e-3, c(0.006472309923452, 0.010352848168433, 0.025541937543450, 0.104348729347986, 0.218678084205081, 0.365415366571266)))
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