# The Gibbs SeaWater (GSW) Oceanographic Toolbox of TEOS-10
## Contents
documentation set Practical Salinity (SP), PSS-78 Absolute Salinity (SA), Preformed Salinity (Sstar) and Conservative Temperature (CT) Absolute Salinity - Conservative Temperature plotting function other conversions between temperatures, salinities, entropy, pressure and height specific volume, density and enthalpy vertical stability geostrophic streamfunctions, acoustic travel time and geostrophic velocity neutral versus isopycnal slopes and ratios derivatives of entropy, CT and pt seawater and ice properties at the freezing temperature thermodynamic interaction between ice and seawater thermodynamic interaction between sea ice and seawater thermodynamic properties of ice Ih isobaric evaporation enthalpy spiciness planet Earth properties TEOS-10 constants dissolved gasses specific volume, density and enthalpy in terms of CT, based on the exact Gibbs function laboratory functions, for use with densimeter measurements basic thermodynamic properties in terms of in-situ temperature, based on the exact Gibbs function Library functions of the GSW toolbox (internal functions; not intended to be called by users)
### documentation set
gsw_front_page | front page to the GSW Oceanographic Toolbox
gsw_check_functions | checks that all the GSW functions work correctly
gsw_demo | demonstrates many GSW functions and features
gsw_ver | displays the GSW version number
gsw_licence | creative commons licence for the GSW Oceanographic Toolbox
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### Practical Salinity (SP), PSS-78
gsw_SP_from_C | Practical Salinity from conductivity, C (inc. for SP < 2)
gsw_C_from_SP | conductivity, C, from Practical Salinity (inc. for SP < 2)
gsw_SP_from_R | Practical Salinity from conductivity ratio, R (inc. for SP < 2)
gsw_R_from_SP | conductivity ratio, R, from Practical Salinity (inc. for SP < 2)
gsw_SP_salinometer | Practical Salinity from a laboratory salinometer (inc. for SP < 2)
gsw_SP_from_SK | Practical Salinity from Knudsen Salinity
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### Absolute Salinity (SA), Preformed Salinity (Sstar) and Conservative Temperature (CT)
gsw_SA_from_SP | Absolute Salinity from Practical Salinity
gsw_Sstar_from_SP | Preformed Salinity from Practical Salinity
gsw_CT_from_t | Conservative Temperature from in-situ temperature
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### Absolute Salinity - Conservative Temperature plotting function
gsw_SA_CT_plot | function to plot Absolute Salinity - Conservative Temperature profiles on the SA-CT diagram, including the freezing line and selected potential density contours
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### other conversions between temperatures, salinities, pressure and height
gsw_deltaSA_from_SP | Absolute Salinity Anomaly from Practical Salinity
gsw_SA_Sstar_from_SP | Absolute Salinity & Preformed Salinity from Practical Salinity
gsw_SR_from_SP | Reference Salinity from Practical Salinity
gsw_SP_from_SR | Practical Salinity from Reference Salinity
gsw_SP_from_SA | Practical Salinity from Absolute Salinity
gsw_Sstar_from_SA | Preformed Salinity from Absolute Salinity
gsw_SA_from_Sstar | Absolute Salinity from Preformed Salinity
gsw_SP_from_Sstar | Practical Salinity from Preformed Salinity
gsw_pt_from_CT | potential temperature from Conservative Temperature
gsw_t_from_CT | in-situ temperature from Conservative Temperature
gsw_CT_from_pt | Conservative Temperature from potential temperature
gsw_pot_enthalpy_from_pt | potential enthalpy from potential temperature
gsw_pt_from_t | potential temperature
gsw_pt0_from_t | potential temperature with a reference pressure of zero dbar
gsw_t_from_pt0 | in-situ temperature from potential temperature with p_ref of 0 dbar
gsw_t90_from_t48 | ITS-90 temperature from IPTS-48 temperature
gsw_t90_from_t68 | ITS-90 temperature from IPTS-68 temperature
gsw_z_from_p | height from pressure
gsw_p_from_z | pressure from height
gsw_z_from_depth | height from depth
gsw_depth_from_z | depth from height
gsw_Abs_Pressure_from_p | Absolute Pressure,P, from pressure, p
gsw_p_from_Abs_Pressure | pressure, p, from Absolute Pressure, P
gsw_entropy_from_CT | entropy from Conservative Temperature
gsw_CT_from_entropy | Conservative Temperature from entropy
gsw_entropy_from_pt | entropy from potential temperature
gsw_pt_from_entropy | potential temperature from entropy
gsw_entropy_from_t | entropy from in-situ temperature
gsw_t_from_entropy | in-situ temperature from entropy
gsw_adiabatic_lapse_rate_from_CT | adiabatic lapse rate from Conservative Temperature
gsw_adiabatic_lapse_rate_from_t | adiabatic lapse rate from in-situ temperature
gsw_molality_from_SA | molality of seawater
gsw_ionic_strength_from_SA | ionic strength of seawater
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### specific volume, density and enthalpy
gsw_specvol | specific volume
gsw_alpha | thermal expansion coefficient with respect to CT
gsw_beta | saline contraction coefficient at constant CT
gsw_alpha_on_beta | alpha divided by beta
gsw_specvol_alpha_beta | specific volume, thermal expansion & saline contraction coefficients
gsw_specvol_first_derivatives | first derivatives of specific volume
gsw_specvol_second_derivatives | second derivatives of specific volume
gsw_specvol_first_derivatives_wrt_enthalpy | first derivatives of specific volume with respect to enthalpy
gsw_specvol_second_derivatives_wrt_enthalpy | second derivatives of specific volume with respect to enthalpy
gsw_specvol_anom | specific volume anomaly
gsw_specvol_anom_standard | specific volume anomaly relative to SSO & 0°C
gsw_rho | in-situ density and potential density
gsw_rho_alpha_beta | in-situ density, thermal expansion & saline contraction coefficients
gsw_rho_first_derivatives | first derivatives of density
gsw_rho_second_derivatives | second derivatives of density
gsw_rho_first_derivatives_wrt_enthalpy | first derivatives of density with respect to enthalpy
gsw_rho_second_derivatives_wrt_enthalpy | second derivatives of density with respect to enthalpy
gsw_sigma0 | sigma0 with reference pressure of 0 dbar
gsw_sigma1 | sigma1 with reference pressure of 1000 dbar
gsw_sigma2 | sigma2 with reference pressure of 2000 dbar
gsw_sigma3 | sigma3 with reference pressure of 3000 dbar
gsw_sigma4 | sigma4 with reference pressure of 4000 dbar
gsw_cabbeling | cabbeling coefficient
gsw_thermobaric | thermobaric coefficient
gsw_enthalpy | enthalpy
gsw_enthalpy_diff | difference of enthalpy between two pressures
gsw_dynamic_enthalpy | dynamic enthalpy
gsw_enthalpy_first_derivatives | first derivatives of enthalpy
gsw_enthalpy_second_derivatives | second derivatives of enthalpy
gsw_sound_speed | sound speed
gsw_kappa | isentropic compressibility
gsw_internal_energy | internal energy
gsw_internal_energy_first_derivatives | first derivatives of internal energy
gsw_internal_energy_second_derivatives | second derivatives of internal energy
gsw_CT_from_enthalpy | Conservative Temperature from enthalpy
gsw_SA_from_rho | Absolute Salinity from density
gsw_CT_from_rho | Conservative Temperature from density
gsw_CT_maxdensity | Conservative Temperature of maximum density of seawater
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### vertical stability
gsw_Turner_Rsubrho | Turner angle & Rsubrho
gsw_Nsquared | buoyancy (Brunt-Vaisala) frequency squared (N²)
gsw_Nsquared_min | minimum buoyancy (Brunt-Vaisala) frequency squared (N²)
gsw_stabilise_SA_const_t | minimally adjust SA to produce a stable water column, keeping in-situ temperature constant
gsw_stabilise_SA_CT | minimally adjusts SA & CT to produce a stable water column
gsw_mlp | mixed-layer pressure
gsw_Nsquared_lowerlimit | specified profile of minimum buoyancy frequency squared
gsw_IPV_vs_fNsquared_ratio | ratio of the vertical gradient of potential density (with reference pressure, p_ref), to the vertical gradient of locally-referenced potential density
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### geostrophic streamfunctions, acoustic travel time and geostrophic velocity
gsw_geo_strf_dyn_height | dynamic height anomaly
gsw_geo_strf_dyn_height_pc | dynamic height anomaly for piecewise constant profiles
gsw_geo_strf_isopycnal | approximate isopycnal geostrophic streamfunction
gsw_geof_str_isopycnal_pc | approximate isopycnal geostrophic streamfunction for piecewise constant profiles
gsw_geo_strf_Montgomery | Montgomery geostrophic streamfunction
gsw_geo_strf_Cunningham | Cunningham geostrophic streamfunction
gsw_geo_strf_steric_height | dynamic height anomaly divided by 9.7963 m s^-2
gsw_geo_strf_PISH | Pressure intergrated steric height
gsw_travel_time | acoustic travel time
gsw_geostrophic_velocity | geostrophic velocity
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### neutral versus isopycnal slopes and ratios
gsw_isopycnal_slope_ratio | ratio of the slopes of isopycnals on the SA-CT diagram for p & p_ref
gsw_isopycnal_vs_ntp_CT_ratio | ratio of the gradient of Conservative Temperature in a potential density surface to that in the neutral tangent plane
gsw_ntp_pt_vs_CT_ratio | ratio of gradients of potential temperature & Conservative Temperature in a neutral tangent plane (i.e. in a locally-referenced potential density surface)
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### derivatives of entropy, CT and pt
gsw_CT_first_derivatives | first derivatives of Conservative Temperature
gsw_CT_second_derivatives | second derivatives of Conservative Temperature
gsw_entropy_first_derivatives | first derivatives of entropy
gsw_entropy_second_derivatives | second derivatives of entropy
gsw_pt_first_derivatives | first derivatives of potential temperature
gsw_pt_second_derivatives | second derivatives of potential temperature
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### seawater and ice properties at freezing temperatures
gsw_CT_freezing | Conservative Temperature freezing temperature of seawater
gsw_CT_freezing_poly | Conservative Temperature freezing temperature of seawater (polynomial)
gsw_t_freezing | in-situ freezing temperature of seawater
gsw_t_freezing_poly | in-situ freezing temperature of seawater (polynomial)
gsw_pot_enthalpy_ice_freezing | potential enthalpy of ice at which seawater freezes
gsw_pot_enthalpy_ice_freezing_poly | potential enthalpy of ice at which seawater freezes (polynomial)
gsw_SA_freezing_from_CT | Absolute Salinity of seawater at the freezing point (for given CT)
gsw_SA_freezing_from_CT_poly | Absolute Salinity of seawater at the freezing point (for given CT) (polynomial)
gsw_SA_freezing_from_t | Absolute Salinity of seawater at the freezing point (for given t)
gsw_SA_freezing_from_t_poly | Absolute Salinity of seawater at the freezing point (for given t) (polynomial)
gsw_pressure_freezing_CT | pressure of seawater at the freezing temperature (for given CT)
gsw_CT_freezing_first_derivatives | first derivatives of Conservative Temperature freezing temperature of seawater
gsw_CT_freezing_first_derivatives_poly | first derivatives of Conservative Temperature freezing temperature of seawater (polynomial)
gsw_t_freezing_first_derivatives | first derivatives of in-situ freezing temperature of seawater
gsw_t_freezing_first_derivatives_poly | first derivatives of in-situ freezing temperature of seawater (polynomial)
gsw_pot_enthalpy_ice_freezing_first_derivatives | first derivatives o fpotential enthalpy of ice at which seawater freezes
gsw_pot_enthalpy_ice_freezing_first_derivatives_poly | first derivatives of potential enthalpy of ice at which seawater freezes (polynomial)
gsw_latentheat_melting | latent heat of melting of ice into seawater (isobaric melting enthalpy)
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### thermodynamic interaction between ice and seawater
gsw_melting_ice_SA_CT_ratio | SA to CT ratio when ice melts in seawater
gsw_melting_ice_SA_CT_ratio_poly | SA to CT ratio when ice melts in seawater (polynomial)
gsw_melting_ice_equilibrium_SA_CT_ratio | SA to CT ratio when ice melts into seawater near equilibrium
gsw_melting_ice_equilibrium_SA_CT_ratio_poly | SA to CT ratio when ice melts into seawater near equilibrium (polynomial)
gsw_melting_ice_into_seawater | SA and CT when ice melts in seawater
gsw_ice_fraction_to_freeze_seawater | ice mass fraction to freeze seawater
gsw_frazil_ratios_adiabatic | ratios of SA, CT and P changes during frazil ice formation
gsw_frazil_ratios_adiabatic_poly | ratios of SA, CT and P changes during frazil ice formation (polynomial)
gsw_frazil_properties | SA, CT and ice mass fraction from bulk SA and bulk enthalpy
gsw_frazil_properties_potential | SA, CT and ice mass fraction from bulk SA and bulk potential enthalpy
gsw_frazil_properties_potential_poly | SA, CT and ice mass fraction from bulk SA and bulk potential enthalpy (polynomial)
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### thermodynamic interaction between sea ice and seawater
gsw_melting_seaice_SA_CT_ratio | SA to CT ratio when sea ice melts in seawater
gsw_melting_seaice_SA_CT_ratio_poly | SA to CT ratio when sea ice melts in seawater (polynomial)
gsw_melting_seaice_equilibrium_SA_CT_ratio | SA to CT ratio when sea ice melts into seawater equilibrium
gsw_melting_seaice_equilibrium_SA_CT_ratio_poly | SA to CT ratio when sea ice melts into seawater equilibrium (polynomial)
gsw_melting_seaice_into_seawater | SA and CT when sea ice melts in seawater
gsw_seaice_fraction_to_freeze_seawater | sea ice mass fraction to freeze seawater
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### thermodynamic properties of ice Ih
gsw_rho_ice | in-situ density of ice
gsw_alpha_wrt_t_ice | thermal expansion coefficient of ice with respect to in-situ temperature
gsw_specvol_ice | specific volume of ice
gsw_pressure_coefficient_ice | pressure coefficient of ice
gsw_sound_speed_ice | sound speed of ice (compression waves)
gsw_kappa_ice | isentropic compressibility of ice
gsw_kappa_const_t_ice | isothermal compressibility of ice
gsw_internal_energy_ice | internal energy of ice
gsw_enthalpy_ice | enthalpy of ice
gsw_entropy_ice | entropy of ice
gsw_cp_ice | isobaric heat capacity of ice
gsw_chem_potential_water_ice | chemical potential of water in ice
gsw_Helmholtz_energy_ice | Helmholtz energy of ice
gsw_adiabatic_lapse_rate_ice | adiabatic lapse rate of ice
gsw_pt0_from_t_ice | potential temperature of ice with reference pressure of 0 dbar
gsw_pt_from_t_ice | potential temperature of ice
gsw_t_from_pt0_ice | in-situ temperature from potential temperature of ice with p_ref of 0 dbar
gsw_t_from_rho_ice | in-situ temperature from the in-situ density of ice
gsw_pot_enthalpy_from_pt_ice | potential enthalpy from potential temperature of ice
gsw_pt_from_pot_enthalpy_ice | potential temperature from potential enthalpy of ice
gsw_pot_enthalpy_from_pt_ice_poly | potential enthalpy from potential temperature of ice (polynomial)
gsw_pt_from_pot_enthalpy_ice_poly | potential temperature from potential enthalpy of ice (polynomial)
gsw_pot_enthalpy_from_specvol_ice | potential enthalpy from specific volume of ice
gsw_specvol_from_pot_enthalpy_ice | specific volume from potential enthalpy of ice
gsw_pot_enthalpy_from_specvol_ice_poly | potential enthalpy from specific volume of ice (polynomial)
gsw_specvol_from_pot_enthalpy_ice_poly | specific volume from potential enthalpy of ice (polynomial)
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### isobaric evaporation enthalpy
gsw_latentheat_evap_CT | latent heat of evaporation of water from seawater (isobaric evaporation enthalpy) with CT as input temperature
gsw_latentheat_evap_t | latent heat of evaporation of water from seawater (isobaric evaporation enthalpy) with in-situ temperature, t, as input
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### spiciness
gsw_spiciness0 | spiciness with p_ref of 0 dbar
gsw_spiciness1 | spiciness with p_ref of 1000 dbar
gsw_spiciness2 | spiciness with p_ref of 2000 dbar
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### Planet Earth properties
gsw_f | Coriolis parameter
gsw_grav | gravitational acceleration
gsw_distance | spherical earth distance between points in the ocean
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### TEOS-10 constants
gsw_T0 | Celcius zero point; 273.15 K
gsw_P0 | one standard atmosphere; 101 325 Pa
gsw_SS0 | Standard Ocean Reference Salinity; 35.165 04 g/kg
gsw_uPS | unit conversion factor for salinities; (35.165 04/35) g/kg
gsw_cp0 | the "specific heat" for use with CT; 3991.867 957 119 63 (J/kg)/K
gsw_C3515 | conductivity of SSW at SP=35, t_68=15, p=0; 42.9140 mS/cm
gsw_SonCl | ratio of SP to Chlorinity; 1.80655 (g/kg)^-1
gsw_valence_factor | valence factor of sea salt; 1.2452898
gsw_atomic_weight | mole-weighted atomic weight of sea salt; 31.4038218... g/mol
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### dissolved gasses
gsw_Arsol | argon solubility from SA and CT
gsw_Arsol_SP_pt | argon solubility from SP and pt
gsw_Hesol | helium solubility from SA and CT
gsw_Hesol_SP_pt | helium solubility from SP and pt
gsw_Krsol | krypton solubility from SA and CT
gsw_Krsol_SP_pt | krypton solubility from SP and pt
gsw_N2sol | nitrogen solubility from SA and CT
gsw_N2sol_SP_pt | nitrogen solubility from SP and pt
gsw_Nesol | neon solubility from SA and CT
gsw_Nesol_SP_pt | neon solubility from SP and pt
gsw_O2sol | oxygen solubility from SA and CT
gsw_O2sol_SP_pt | oxygen solubility from SP and pt
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### density and enthalpy in terms of CT, based on the exact Gibbs function
gsw_specvol_CT_exact | specific volume
gsw_alpha_CT_exact | thermal expansion coefficient with respect to CT
gsw_beta_CT_exact | saline contraction coefficient at constant CT
gsw_alpha_on_beta_CT_exact | alpha divided by beta
gsw_specvol_alpha_beta_CT_exact | specific volume, thermal expansion & saline contraction coefficients
gsw_specvol_first_derivatives_CT_exact | first derivatives of specific volume
gsw_specvol_second_derivatives_CT_exact | second derivatives of specific volume
gsw_specvol_first_derivatives_wrt_enthalpy_CT_exact | first derivatives of specific volume with respect to enthalpy
gsw_specvol_second_derivatives_wrt_enthalpy_CT_exact | second derivatives of specific volume with respect to enthalpy
gsw_specvol_anom_CT_exact | specific volume anomaly
gsw_specvol_anom_standard_CT_exact | specific volume anomaly relative to SSO & 0°C
gsw_rho_CT_exact | in-situ density and potential density
gsw_rho_alpha_beta_CT_exact | in-situ density, thermal expansion & saline contraction coefficients
gsw_rho_first_derivatives_CT_exact | first derivatives of density
gsw_rho_second_derivatives_CT_exact | second derivatives of density
gsw_rho_first_derivatives_wrt_enthalpy_CT_exact | first derivatives of density with respect to enthalpy
gsw_rho_second_derivatives_wrt_enthalpy_CT_exact | second derivatives of density with respect to enthalpy
gsw_sigma0_CT_exact | sigma0 with reference pressure of 0 dbar
gsw_sigma1_CT_exact | sigma1 with reference pressure of 1000 dbar
gsw_sigma2_CT_exact | sigma2 with reference pressure of 2000 dbar
gsw_sigma3_CT_exact | sigma3 with reference pressure of 3000 dbar
gsw_sigma4_CT_exact | sigma4 with reference pressure of 4000 dbar
gsw_cabbeling_CT_exact | cabbeling coefficient
gsw_thermobaric_CT_exact | thermobaric coefficient
gsw_enthalpy_CT_exact | enthalpy
gsw_enthalpy_diff_CT_exact | difference of enthalpy between two pressures
gsw_dynamic_enthalpy_CT_exact | dynamic enthalpy
gsw_enthalpy_first_derivatives_CT_exact | first derivatives of enthalpy
gsw_enthalpy_second_derivatives_CT_exact | second derivatives of enthalpy
gsw_sound_speed_CT_exact | sound speed
gsw_kappa_CT_exact | isentropic compressibility
gsw_internal_energy_CT_exact | internal energy
gsw_internal_energy_first_derivatives_CT_exact | first derivatives of internal energy
gsw_internal_energy_second_derivatives_CT_exact | second derivatives of internal energy
gsw_CT_from_enthalpy_exact | Conservative Temperature from enthalpy
gsw_SA_from_rho_CT_exact | Absolute Salinity from density
gsw_CT_from_rho_exact | Conservative Temperature from density
gsw_CT_maxdensity_exact | Conservative Temperature of maximum density of seawater
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### Laboratory functions, for use with densimeter measurements
gsw_deltaSA_from_rho_t_exact | Absolute Salinity Anomaly from density measurements
gsw_SA_from_rho_t_exact | Absolute Salinity from density
gsw_rho_t_exact | in-situ density
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### basic thermodynamic properties in terms of in-situ t, based on the exact Gibbs function
gsw_specvol_t_exact | specific volume
gsw_alpha_wrt_CT_t_exact | thermal expansion coefficient with respect to Conservative Temperature
gsw_alpha_wrt_pt_t_exact | thermal expansion coefficient with respect to potential temperature
gsw_alpha_wrt_t_exact | thermal expansion coefficient with respect to in-situ temperature
gsw_beta_const_CT_t_exact | saline contraction coefficient at constant Conservative Temperature
gsw_beta_const_pt_t_exact | saline contraction coefficient at constant potential temperature
gsw_beta_const_t_exact | saline contraction coefficient at constant in-situ temperature
gsw_specvol_anom_standard_t_exact | specific volume anomaly relative to SSO and 0°C
gsw_rho_t_exact | in-situ density
gsw_pot_rho_t_exact | potential density
gsw_sigma0_pt0_exact | sigma0 from pt0 with reference pressure of 0 dbar
gsw_enthalpy_t_exact | enthalpy
gsw_dynamic_enthalpy_t_exact | dynamic enthalpy
gsw_CT_first_derivatives_wrt_t_exact | first derivatives of Conservative Temperature with respect to t
gsw_enthalpy_first_derivatives_wrt_t_exact | first derivatives of enthalpy with respect to t
gsw_sound_speed_t_exact | sound speed
gsw_kappa_t_exact | isentropic compressibility
gsw_kappa_const_t_exact | isothermal compressibility
gsw_internal_energy_t_exact | internal energy
gsw_SA_from_rho_t_exact | Absolute Salinity from density
gsw_t_from_rho_exact | in-situ temperature from density
gsw_t_maxdensity_exact | in-situ temperature of maximum density of seawater
gsw_cp_t_exact | isobaric heat capacity
gsw_isochoric_heat_cap_t_exact | isochoric heat capacity
gsw_chem_potential_relative_t_exact | relative chemical potential
gsw_chem_potential_water_t_exact | chemical potential of water in seawater
gsw_chem_potential_salt_t_exact | chemical potential of salt in seawater
gsw_t_deriv_chem_potential_water_t_exact | temperature derivative of chemical potential of water
gsw_dilution_coefficient_t_exact | dilution coefficient of seawater
gsw_Gibbs_energy_t_exact | Gibbs energy
gsw_Helmholtz_energy_t_exact | Helmholtz energy
gsw_osmotic_coefficient_t_exact | osmotic coefficient of seawater
gsw_osmotic_pressure_t_exact | osmotic pressure of seawater
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### The GSW functions above call the following library functions:
gsw_gibbs | the TEOS-10 Gibbs function of seawater and its derivatives
gsw_gibbs_ice | the TEOS-10 Gibbs function of ice and its derivatives
gsw_SAAR | Absolute Salinity Anomaly Ratio (excluding the Baltic Sea)
gsw_Fdelta | ratio of Absolute to Preformed Salinity, minus 1
gsw_deltaSA_atlas | Absolute Salinity Anomaly atlas value (excluding the Baltic Sea)
gsw_SA_from_SP_Baltic | Calculates Absolute Salinity in the Baltic Sea
gsw_SP_from_SA_Baltic | Calculates Practical Salinity in the Baltic Sea
gsw_infunnel | "oceanographic funnel" check for the 75-term equation
gsw_entropy_part | entropy minus the terms that are a function of only SA
gsw_entropy_part_zerop | entropy_part evaluated at 0 dbar
gsw_interp_ref_cast | linearly interpolates the reference cast
gsw_linear_interp_SA_CT | linearly interpolates (SA,CT,p) to the desired p
gsw_pchip_interp_SA_CT | pchip interpolation of (SA,CT,p) to the desired p
gsw_rr68_interp_SA_CT | Reininger & Ross (1968) interpolation of (SA,CT,p) to the desired p
gsw_spline_interp_SA_CT | spline interpolation of (SA,CT,p) to the desired p
gsw_wiggliness | amount of variation in a cast
gsw_gibbs_pt0_pt0 | gibbs(0,2,0,SA,t,0)
gsw_gibbs_ice_part_t | part of gibbs_ice(1,0,t,p)
gsw_gibbs_ice_pt0 | part of gibbs_ice(1,0,pt0,0)
gsw_specvol_SSO_0 | specvol(35.16504,0,p)
gsw_enthalpy_SSO_0 | enthalpy(35.16504,0,p)
gsw_Hill_ratio_at_SP2 | Hill ratio at a Practical Salinity of 2
The GSW data set:
gsw_data_v3_0 | This fine contains:,
| (1) the global data set of Absolute Salinity Anomaly Ratio,
| (2) the global data set of Absolute Salinity Anomaly Ref.,
| (3) a reference cast (for the isopycnal streamfunction),
| (4) two reference casts that are used by gsw_demo
| (5) three vertical profiles of (SP, t, p) at known long & lat, plus
| the outputs of all the GSW functions for these 3 profiles, and
| the required accuracy of all these outputs.
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