R: Adiabatic Lapse Rate

gsw_adiabatic_lapse_rate_from_CT {gsw} | R Documentation

## Adiabatic Lapse Rate

### Description

Note that the unit is K/Pa; multiply by 1e4 to get the more useful K/dbar.

### Usage

    gsw_adiabatic_lapse_rate_from_CT(SA, CT, p)

### Arguments

`SA` | Absolute Salinity [ g/kg ]
`CT` | Conservative Temperature [ degC ]
`p` | sea pressure [dbar], i.e. absolute pressure [dbar] minus 10.1325 dbar

### 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.

### Value

adiabatic lapse rate (note unconventional unit) [ K/Pa ]

### References

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

### Examples

    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)
    expect_equal(lr*1e7, c(0.240199646230069, 0.238457486976761, 0.203635157319712,
                         0.119829566859790, 0.100052760967308, 0.087773070307283))

[Package gsw version 1.0-5 Index]