The Gibbs SeaWater (GSW)
Oceanographic Toolbox of TEOS-10 |
Contents |
- documentaion set
- Practical Salinty (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 and interpolation
- 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)
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documentation set |
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| 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 |
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| 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) |
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| 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
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| 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 |
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| 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
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| 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 |
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| 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_specvol_diff | specific volume difference between two pressures |
| 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 and interpolation |
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| 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_SA_CT_interp | interpolates SA & CT to defined pressures |
| gsw_t_interp | interpolates in-situ temperature to defined pressures |
| gsw_tracer_CT_interp | interpolates a tracer & CT to defined pressures |
| gsw_tracer_interp | interpolates a tracer to defined pressures |
| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
| gsw_SA_CT_from_sigma0_spiciness0 | SA & CT from given sigma and spiciness with p_ref of 0 dbar |
| gsw_SA_CT_from_sigma1_spiciness1 | SA & CT from given sigma and spiciness with p_ref of 1000 dbar |
| gsw_SA_CT_from_sigma2_spiciness2 | SA & CT from given sigma and spiciness with p_ref of 2000 dbar |
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Planet Earth properties |
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| 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 |
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| 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 |
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| 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_specvol_diff_CT_exact | specific volume difference between two pressures |
| 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 |
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| 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 |
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| 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: |
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| 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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