gsw_adiabatic_lapse_rate_from_CT | R Documentation |
Note that the unit is K/Pa; multiply by 1e4 to get the more useful K/dbar.
gsw_adiabatic_lapse_rate_from_CT(SA, CT, p)
SA |
Absolute Salinity [ g/kg ]. The valid range for most 'gsw' functions is 0 to 42 g/kg. |
CT |
Conservative Temperature [ degC ]. |
p |
sea pressure [dbar], i.e. absolute pressure [dbar] minus 10.1325 dbar |
adiabatic lapse rate (note unconventional unit) [ K/Pa ]
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.
http://www.teos-10.org/pubs/gsw/html/gsw_adiabatic_lapse_rate_from_CT.html
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)
lr <- gsw_adiabatic_lapse_rate_from_CT(SA, CT, p)
stopifnot(all.equal(lr*1e7,
c(0.240199646230069, 0.238457486976761, 0.203635157319712,
0.119829566859790, 0.100052760967308, 0.087773070307283)))
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