ECCO Version 4: Fourth Release (1992-2017)  [ECCO v4r4]

These are the variables in the ECCO v4r4 output that can be downloaded as daily averages on the native LLC90 grid:

ShortName         Variable Name     Description (units)

ECCO_L4_SSH_LLC0090GRID_DAILY_V4R4
                  SSH               Dynamic sea surface height anomaly. Suitable for comparisons with altimetry sea surface height data products that apply the inverse barometer correction. (m)
                  SSHIBC            The inverted barometer correction to sea surface height due to atmospheric pressure loading. (m)
                  SSHNOIBC          Sea surface height anomaly without the inverted barometer correction. Suitable for comparisons with altimetry sea surface height data products that do NOT apply the inverse barometer correction. (m)
                  ETAN              Model sea level anomaly, without corrections for global mean density changes, inverted barometer effect, or volume displacement due to submerged sea-ice and snow. (m)

ECCO_L4_ATM_STATE_LLC0090GRID_DAILY_V4R4
                  EXFatemp          Atmosphere surface (2 m) air temperature (degK)
                  EXFaqh            Atmosphere surface (2 m) specific humidity (kg/kg)
                  EXFuwind          Wind speed at 10m in the model +x direction (m/s)
                  EXFvwind          Wind speed at 10m in the model +y direction (m/s)
                  EXFwspee          Wind speed (m/s)
                  EXFpress          Atmosphere surface pressure (N/m^2)

ECCO_L4_STRESS_LLC0090GRID_DAILY_V4R4
                  EXFtaux           Wind stress in the model +x direction (N/m^2)
                  EXFtauy           Wind stress in the model +y direction (N/m^2)
                  oceTAUX           Ocean surface stress in the model +x direction, due to wind and sea-ice (N/m^2)
                  oceTAUY           Ocean surface stress in the model +y direction, due to wind and sea-ice (N/m^2)

ECCO_L4_HEAT_FLUX_LLC0090GRID_DAILY_V4R4
                  EXFhl             Open ocean air-sea latent heat flux (W/m^2)
                  EXFhs             Open ocean air-sea sensible heat flux (W/m^2)
                  EXFlwdn           Downward longwave radiative flux (W/m^2)
                  EXFswdn           Downwelling shortwave radiative flux (W/m^2)
                  EXFqnet           Open ocean net air-sea heat flux (W/m^2)
                  oceQnet           Net heat flux into the ocean surface (W/m^2)
                  SIatmQnt          Net upward heat flux to the atmosphere (W/m^2)
                  TFLUX             Rate of change of ocean heat content per m^2 accounting for mass (e.g. freshwater) fluxes (W/m^2)
                  EXFswnet          Open ocean net shortwave radiative flux (W/m^2)
                  EXFlwnet          Net open ocean longwave radiative flux (W/m^2)
                  oceQsw            Net shortwave radiative flux across the ocean surface (W/m^2)
                  SIaaflux          Conservative ocean and sea-ice advective heat flux adjustment, associated with temperature difference between sea surface temperature and sea-ice, excluding latent heat of fusion (W/m^2)

ECCO_L4_FRESH_FLUX_LLC0090GRID_DAILY_V4R4
                  EXFpreci          Precipitation rate (m/s)
                  EXFevap           Open ocean evaporation rate (m/s)
                  EXFroff           River runoff (m/s)
                  SIsnPrcp          Snow precipitation on sea-ice (kg/(m^2 s))
                  EXFempmr          Open ocean net surface freshwater flux from precipitation, evaporation, and runoff (m/s)
                  oceFWflx          Net freshwater flux into the ocean (kg/(m^2 s))
                  SIatmFW           Net freshwater flux into the open ocean, sea-ice, and snow (kg/(m^2 s))
                  SFLUX             Rate of change of total ocean salinity per m^2 accounting for mass fluxes (g/(m^2 s))
                  SIacSubl          Freshwater flux to the atmosphere due to sublimation-deposition of snow or ice (kg/(m^2 s))
                  SIrsSubl          Residual sublimation freshwater flux (kg/(m^2 s))
                  SIfwThru          Precipitation through sea-ice (kg/(m^2 s))

ECCO_L4_SEA_ICE_CONC_THICKNESS_LLC0090GRID_DAILY_V4R4
                  SIarea            Sea-ice concentration (fraction between 0 and 1)
                  SIheff            Area-averaged sea-ice thickness (m)
                  SIhsnow           Area-averaged snow thickness (m)
                  sIceLoad          Average sea-ice and snow mass per unit area (kg/m^2)

ECCO_L4_SEA_ICE_VELOCITY_LLC0090GRID_DAILY_V4R4
                  SIuice            Sea-ice velocity in the model +x direction (m/s)
                  SIvice            Sea-ice velocity in the model +y direction (m/s)

ECCO_L4_SEA_ICE_HORIZ_VOLUME_FLUX_LLC0090GRID_DAILY_V4R4
                  ADVxHEFF          Lateral advective flux of sea-ice thickness in the model +x direction (m^3/s)
                  ADVyHEFF          Lateral advective flux of sea-ice thickness in the model +y direction (m^3/s)
                  DFxEHEFF          Lateral diffusive flux of sea-ice thickness in the model +x direction (m^3/s)
                  DFyEHEFF          Lateral diffusive flux of sea-ice thickness in the model +y direction (m^3/s)
                  ADVxSNOW          Lateral advective flux of snow thickness in the model +x direction (m^3/s)
                  ADVySNOW          Lateral advective flux of snow thickness in the model +y direction (m^3/s)
                  DFxESNOW          Lateral diffusive flux of snow thickness in the model +x direction (m^3/s)
                  DFyESNOW          Lateral diffusive flux of snow thickness in the model +y direction (m^3/s)

ECCO_L4_SEA_ICE_SALT_PLUME_FLUX_LLC0090GRID_DAILY_V4R4
                  oceSPflx          Net salt flux into the ocean due to brine rejection (g/(m^2 s))
                  oceSPDep          Salt plume depth (m)

ECCO_L4_MIXED_LAYER_DEPTH_LLC0090GRID_DAILY_V4R4
                  MXLDEPTH          Mixed-layer depth diagnosed using the temperature difference criterion of Kara et al., 2000 (m)

ECCO_L4_OBP_LLC0090GRID_DAILY_V4R4
                  OBP               Ocean bottom pressure, excluding global mean atmospheric pressure, given as equivalent water thickness. This is suitable for comparisons with GRACE data products. (m)
                  OBPGMAP           Ocean bottom pressure, includes global mean atmospheric pressure, given as equivalent water thickness. This is suitable for comparisons with ocean bottom pressure gauge data products. (m)
                  PHIBOT            Ocean hydrostatic bottom pressure anomaly (m^2/s^2)

ECCO_L4_OCEAN_VEL_LLC0090GRID_DAILY_V4R4
Note: UVEL,VVEL should not be used in volume flux calculations due to time-variable grid cell thicknesses (z* coordinates). Use UVELMASS,VVELMASS instead.
                  UVEL              Horizontal velocity in the model +x direction (m/s)
                  VVEL              Horizontal velocity in the model +y direction (m/s)
                  WVEL              Vertical velocity (m/s)

ECCO_L4_TEMP_SALINITY_LLC0090GRID_DAILY_V4R4
                  THETA             Potential temperature, i.e., temperature of water parcel at sea level pressure (degC)
                  SALT              Salinity (1e-3, or parts per thousand)

ECCO_L4_DENS_STRAT_PRESS_LLC0090GRID_DAILY_V4R4
                  RHOAnoma          In-situ seawater density anomaly (kg/m^3)
                  DRHODR            Density stratification ((kg/m^3)/m)
                  PHIHYD            Ocean hydrostatic pressure anomaly (m^2/s^2)
                  PHIHYDcR          Ocean hydrostatic pressure anomaly at constant depths (m^2/s^2)

ECCO_L4_OCEAN_3D_VOLUME_FLUX_LLC0090GRID_DAILY_V4R4
                  UVELMASS          Horizontal velocity in the model +x direction per unit area of the grid cell \'u\' face. Use this in volume flux calculations as it accounts for partial cells and time-varying grid cell thickness. (m/s)
                  VVELMASS          Horizontal velocity in the model +y direction per unit area of the grid cell \'v\' face. Use this in volume flux calculations as it accounts for partial cells and time-varying grid cell thickness. (m/s)
                  WVELMASS          Grid cell face-averaged vertical velocity in the model +z direction. (m/s)
             

ECCO_L4_OCEAN_3D_MOMENTUM_TEND_LLC0090GRID_DAILY_V4R4
                  Um_dPHdx          Momentum tendency in the model +x direction (m/s^2)
                  Vm_dPHdy          Momentum tendency in the model +y direction (m/s^2)

ECCO_L4_OCEAN_3D_TEMPERATURE_FLUX_LLC0090GRID_DAILY_V4R4
                  ADVx_TH           Lateral advective flux of potential temperature in the model +x direction (degC m^3/s)
                  ADVy_TH           Lateral advective flux of potential temperature in the model +y direction (degC m^3/s)
                  ADVr_TH           Vertical advective flux of potential temperature (degC m^3/s)
                  DFxE_TH           Lateral diffusive flux of potential temperature in the model +x direction (degC m^3/s)
                  DFyE_TH           Lateral diffusive flux of potential temperature in the model +y direction (degC m^3/s)
                  DFrE_TH           Vertical diffusive flux of potential temperature, explicit term (degC m^3/s)
                  DFrI_TH           Vertical diffusive flux of potential temperature, implicit term (degC m^3/s)

ECCO_L4_OCEAN_3D_SALINITY_FLUX_LLC0090GRID_DAILY_V4R4
                  ADVx_SLT          Lateral advective flux of salinity in the model +x direction (1e-3 m^3/s)
                  ADVy_SLT          Lateral advective flux of salinity in the model +y direction (1e-3 m^3/s)
                  ADVr_SLT          Vertical advective flux of salinity (1e-3 m^3/s)
                  DFxE_SLT          Lateral diffusive flux of salinity in the model +x direction (1e-3 m^3/s)
                  DFyE_SLT          Lateral diffusive flux of salinity in the model +y direction (1e-3 m^3/s)
                  DFrE_SLT          Vertical diffusive flux of salinity, explicit term (1e-3 m^3/s)
                  DFrI_SLT          Vertical diffusive flux of salinity, implicit term (1e-3 m^3/s)
                  oceSPtnd          Salt tendency due to the vertical transport of salt in high-salinity brine plumes (g/(m^2 s))

ECCO_L4_BOLUS_LLC0090GRID_DAILY_V4R4
                  UVELSTAR          Gent-McWilliams parameterized bolus velocity in the model +x direction scaled by time-varying grid cell thickness (m/s)
                  VVELSTAR          Gent-McWilliams parameterized bolus velocity in the model +y direction scaled by time-varying grid cell thickness (m/s)
                  WVELSTAR          Gent-McWilliams parameterized bolus velocity in the model +z direction (m/s)

ECCO_L4_OCEAN_BOLUS_STREAMFUNCTION_LLC0090GRID_DAILY_V4R4
                  GM_PsiX           Gent-McWilliams bolus transport streamfunction in the model +x direction (m^2/s)
                  GM_PsiY           Gent-McWilliams bolus transport streamfunction in the model +y direction (m^2/s)