Gibbs SeaWater Oceanographic Package of TEOS-10
Project description
Python implementation of the Thermodynamic Equation Of Seawater - 2010 (TEOS-10)
- For more information go to:
gsw vs. csiro
This table shows some function names in the gibbs library and the corresponding function names in the csiro library.
Variable |
SeaWater (EOS 80) |
Gibbs SeaWater (GSW TEOS 10) |
Absolute Salinity |
NA |
gsw.SA_from_SP(SP,p,long,lat) |
Conservative Temperature |
NA |
gsw.CT_from_t(SA,t,p) |
density (i.e. in situ density) |
sw.dens(SP,t,p) |
gsw.rho_CT(SA,CT,p), or gsw.rho(SA,t,p), or gsw.rho_CT25(SA,CT,p) |
potential density |
sw.pden(SP,t,p,pr) |
gsw.rho_CT(SA,CT,pr), or gsw.rho_CT25(SA,CT,pr) |
potential temperature |
sw.ptmp(SP,t,p,pr) |
gsw.pt_from_t(SA,t,p,pr) |
|
sw.dens(SP, $theta_o$, 0) -1000 kg m -3 |
gsw.sigma0_CT(SA,CT) |
|
sw.dens(SP,$theta_2$, 2000) -1000 kg m -3 |
gsw.sigma2_CT(SA,CT) |
|
sw.dens(SP,$theta_4$, 4000) -1000 kg m -3 |
gsw.sigma2_CT(SA,CT) |
specific volume anomaly |
sw.svan(SP,t,p) |
gsw.specvol_anom_CT(SA,CT,p) or gsw.specvol_anom_CT25(SA,CT,p) |
dynamic height anomaly |
-sw.gpan(SP,t,p) |
gsw.geo_strf_dyn_height(SA,CT,p,delta_p,interp_style) |
geostrophic velocity |
sw.gvel(ga,lat,long) |
gsw.geostrophic_velocity(geo_str,long,lat,p) |
N 2 |
sw.bfrq(SP,t,p,lat) |
gsw.Nsquared_CT25(SA,CT,p,lat) |
pressure from height (SW uses depth, not height) |
sw.pres(-z,lat) |
gsw.p_from_z(z,lat) |
height from pressure (SW outputs depth, not height) |
z = -sw.dpth(p,lat) |
gsw.z_from_p(p,lat) |
in situ temperature from pt |
sw.temp(SP,pt,p,pr) |
gsw.pt_from_t(SA,pt,pr,p) |
sound speed |
sw.svel(SP,t,p) |
gsw.sound_speed(SA,t,p) |
isobaric heat capacity |
sw.cp(SP,t,p) |
gsw.cp(SA,t,p) |
adiabatic lapse rate* |
sw.adtg(SP,t,p) |
gsw.adiabatic_lapse_rate(SA,t,p) |
SP from cndr, (PSS 78) |
sw.salt(cndr,t,p) |
gsw.SP_from_cndr(cndr,t,p) |
cndr from SP, (PSS 78) |
sw.cndr(SP,t,p) |
gsw.cndr_from_SP(SP,t,p) |
distance |
sw.dist(lat,long,units) |
gsw.distance(long,lat,p) |
gravitational acceleration |
sw.g(lat,z) |
gsw.grav(lat,p) |
Coriolis parameter |
sw.f(lat) |
gsw.f(lat) |
testing of all functions |
sw.test() |
gsw.test() |
* The SW and GSW functions output the adiabatic lapse rate in different units, being K (dbar) -1 and K Pa -1 respectively.
Thanks
Bjorn Adlandsvik - Testing unit and several bug fixes
Eric Firing - Support for masked arrays, re-write of _delta_SA
Trevor J. McDougall (and all of SCOR/IAPSO WG127) for making available the Matlab and Fortran versions of this software
Acknowledgments
SCOR/IAPSO WG127. Most of module is derived from the GSW Oceanographic Toolbox of TEOS-10.
The MAJOR.MINOR.MICRO will be used to represent:
MAJOR == The matlab version from the TEOS-10 Group
MINOR == Significant changes made in the python version
MICRO == Bug fixes only
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