CF Standard Name Table

Version 3, 20 February 2007

Refer to the Guidelines for Construction of CF Standard Names for information on how the names are constructed and interpreted, and how new names could be derived.

A note about units
The canonical units associated with each standard name are usually the SI units for the quantity. Section 3.3 of the CF conventions states: "Unless it is dimensionless, a variable with a standard_name attribute must have units which are physically equivalent (not necessarily identical) to the canonical units, possibly modified by an operation specified by either the standard name modifier ... or by the cell_methods attribute." Furthermore, Section 1.3 of the CF conventions states: "The values of the units attributes are character strings that are recognized by UNIDATA's Udunits package [UDUNITS], (with exceptions allowed as discussed in Section 3.1, “Units”)." For example, a variable with the standard name of "air_temperature" may have a units attribute of "degree_Celsius" because Celsius can be converted to Kelvin by Udunits. For the full range of supported units, refer to the Udunits documentation. Refer to the CF conventions for full details of the units attribute.

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Atmospheric Chemistry Atmosphere Dynamics Carbon Cycle Cloud Hydrology
Ocean Dynamics Radiation Sea Ice Surface
Standard Name Canonical Units AMIP GRIB
aerosol_angstrom_exponent 1    
air_density kg m-3    
air_potential_temperature K theta 13
air_pressure Pa plev 1
air_pressure_anomaly Pa   26
air_pressure_at_cloud_base Pa    
air_pressure_at_cloud_top Pa    
air_pressure_at_convective_cloud_base Pa    
air_pressure_at_convective_cloud_top Pa    
air_pressure_at_freezing_level Pa    
air_pressure_at_sea_level Pa psl 2 E151
air_temperature K ta 11 E130
air_temperature_anomaly K   25
air_temperature_at_cloud_top K    
air_temperature_lapse_rate K m-1   19
air_temperature_threshold K    
altitude m   8
altitude_at_top_of_dry_convection m    
area_fraction 1    
area_fraction_below_surface 1 psbg  
atmosphere_absolute_vorticity s-1   41
atmosphere_boundary_layer_thickness m zmla  
atmosphere_cloud_condensed_water_content kg m-2 clwvi 76
atmosphere_cloud_ice_content kg m-2 clivi 58
atmosphere_cloud_liquid_water_content kg m-2    
atmosphere_content_of_sulfate_aerosol kg m-2 trsult  
atmosphere_convective_mass_flux kg m-2 s-1    
atmosphere_dry_energy_content J m-2    
atmosphere_dry_static_energy_content J m-2    
atmosphere_eastward_stress_due_to_gravity_wave_drag Pa tauugwd  
atmosphere_energy_content J m-2    
atmosphere_enthalpy_content J m-2    
atmosphere_heat_diffusivity m2 s-1    
atmosphere_horizontal_streamfunction m2 s-1   35
atmosphere_horizontal_velocity_potential m2 s-1   36
atmosphere_hybrid_height_coordinate m    
atmosphere_hybrid_sigma_pressure_coordinate 1    
atmosphere_kinetic_energy_content J m-2    
atmosphere_ln_pressure_coordinate 1    
atmosphere_mass_per_unit_area kg m-2    
atmosphere_momentum_diffusivity m2 s-1    
atmosphere_net_rate_of_absorption_of_longwave_energy W m-2    
atmosphere_net_rate_of_absorption_of_shortwave_energy W m-2    
atmosphere_northward_stress_due_to_gravity_wave_drag Pa tauvgwd  
atmosphere_optical_thickness_due_to_aerosol 1    
atmosphere_potential_energy_content J m-2    
atmosphere_relative_vorticity s-1   43 E138
atmosphere_sigma_coordinate 1    
atmosphere_sleve_coordinate 1    
atmosphere_specific_convective_available_potential_energy
alias: specific_convective_available_potential_energy
J kg-1    
atmosphere_sulfate_content
alias: atmosphere_so4_content
kg m-2    
atmosphere_water_content kg m-2    
atmosphere_water_vapor_content kg m-2 prw 54
baroclinic_eastward_sea_water_velocity m s-1    
baroclinic_northward_sea_water_velocity m s-1    
barotropic_eastward_sea_water_velocity m s-1    
barotropic_northward_sea_water_velocity m s-1    
baseflow_amount kg m-2    
bedrock_altitude m    
bedrock_altitude_change_due_to_isostatic_adjustment m    
bioluminescent_photon_rate_in_sea_water s-1 m-3    
biomass_burning_carbon_flux kg m-2 s-1    
brightness_temperature K   118
brunt_vaisala_frequency_in_air s-1    
canopy_and_surface_water_amount kg m-2    
canopy_height m    
canopy_water_amount kg m-2    
change_in_atmosphere_energy_content_due_to_change_in_sigma_coordinate_wrt_surface_pressure J m-2    
change_in_energy_content_of_atmosphere_layer_due_to_change_in_sigma_coordinate_wrt_surface_pressure J m-2    
change_over_time_in_atmospheric_water_content_due_to_advection kg m-2    
change_over_time_in_surface_snow_amount kg m-2    
cloud_area_fraction 1 clt 71 E164
cloud_area_fraction_in_atmosphere_layer 1 cl  
cloud_base_altitude m    
cloud_condensed_water_content_of_atmosphere_layer kg m-2    
cloud_ice_content_of_atmosphere_layer kg m-2    
cloud_liquid_water_content_of_atmosphere_layer kg m-2    
cloud_top_altitude m    
concentration_of_chlorophyll_in_sea_water
alias: chlorophyll_concentration_in_sea_water
kg m-3    
concentration_of_suspended_matter_in_sea_water kg m-3    
convective_cloud_area_fraction 1   72 E185
convective_cloud_area_fraction_in_atmosphere_layer 1    
convective_cloud_base_altitude m    
convective_cloud_base_height m    
convective_cloud_top_altitude m    
convective_cloud_top_height m    
convective_precipitation_amount kg m-2   63
convective_precipitation_flux kg m-2 s-1 prc  
convective_rainfall_amount kg m-2    
convective_rainfall_flux kg m-2 s-1    
convective_rainfall_rate m s-1    
convective_snowfall_amount kg m-2   78
convective_snowfall_flux kg m-2 s-1    
coriolis_parameter s-1    
correction_for_model_negative_specific_humidity 1    
depth m    
dew_point_depression K   18
dew_point_temperature K   17
difference_of_air_pressure_from_model_reference Pa    
dimensionless_exner_function 1    
direction_of_sea_ice_velocity degree   93
direction_of_sea_water_velocity degree   47
dissipation_in_atmosphere_boundary_layer W m-2   E145
divergence_of_sea_ice_velocity s-1   98
divergence_of_wind s-1   44 E155
downward_dry_static_energy_flux_due_to_diffusion W m-2    
downward_eastward_momentum_flux_in_air Pa   124
downward_eastward_stress_at_sea_ice_base Pa    
downward_heat_flux_at_ground_level_in_snow W m-2    
downward_heat_flux_at_ground_level_in_soil W m-2    
downward_heat_flux_in_air W m-2    
downward_heat_flux_in_sea_ice W m-2    
downward_heat_flux_in_soil W m-2    
downward_northward_momentum_flux_in_air Pa   125
downward_northward_stress_at_sea_ice_base Pa    
downward_sea_ice_basal_salt_flux kg m-2 s-1    
downward_water_vapor_flux_in_air_due_to_diffusion kg m-2 s-1    
downward_x_stress_at_sea_ice_base Pa    
downward_y_stress_at_sea_ice_base Pa    
downwelling_longwave_flux_in_air W m-2    
downwelling_longwave_radiance_in_air W m-2 sr-1    
downwelling_photon_flux_in_sea_water mol m-2 s-1    
downwelling_photon_radiance_in_sea_water mol m-2 s-1 sr-1    
downwelling_photon_spherical_irradiance_in_sea_water mol m-2 s-1    
downwelling_photosynthetic_photon_flux_in_sea_water mol m-2 s-1    
downwelling_photosynthetic_photon_radiance_in_sea_water mol m-2 s-1 sr-1    
downwelling_photosynthetic_photon_spherical_irradiance_in_sea_water mol m-2 s-1    
downwelling_photosynthetic_radiance_in_sea_water W m-2 sr-1    
downwelling_photosynthetic_radiative_flux_in_sea_water W m-2    
downwelling_photosynthetic_spherical_irradiance_in_sea_water W m-2    
downwelling_radiance_in_sea_water W m-2 sr-1    
downwelling_radiative_flux_in_sea_water W m-2    
downwelling_shortwave_flux_in_air W m-2    
downwelling_shortwave_radiance_in_air W m-2 sr-1    
downwelling_spectral_photon_flux_in_sea_water mol m-2 s-1 m-1    
downwelling_spectral_photon_radiance_in_sea_water mol m-2 s-1 m-1 sr-1    
downwelling_spectral_photon_spherical_irradiance_in_sea_water mol m-2 s-1 m-1    
downwelling_spectral_radiance_in_air W m-2 m-1 sr-1    
downwelling_spectral_radiance_in_sea_water W m-2 m-1 sr-1    
downwelling_spectral_radiative_flux_in_air W m-2 m-1    
downwelling_spectral_radiative_flux_in_sea_water W m-2 m-1    
downwelling_spectral_spherical_irradiance_in_sea_water W m-2 m-1    
downwelling_spherical_irradiance_in_sea_water W m-2    
dry_energy_content_of_atmosphere_layer J m-2    
dry_static_energy_content_of_atmosphere_layer J m-2    
duration_of_sunshine s    
eastward_atmosphere_dry_static_energy_transport_across_unit_distance W m-1    
eastward_atmosphere_water_transport_across_unit_distance kg s-1 m-1    
eastward_atmosphere_water_vapor_transport_across_unit_distance kg m-1 s-1    
eastward_mass_flux_of_air kg m-2 s-1    
eastward_momentum_flux_correction Pa tauucorr  
eastward_sea_ice_velocity m s-1   95
eastward_sea_water_velocity m s-1   49
eastward_water_vapor_flux kg m-2 s-1    
eastward_water_vapor_transport_across_unit_distance_in_atmosphere_layer kg m-1 s-1    
eastward_wind m s-1 ua 33 E131
eastward_wind_shear s-1   45
enthalpy_content_of_atmosphere_layer J m-2    
equilibrium_line_altitude m    
equivalent_potential_temperature K    
equivalent_pressure_of_atmosphere_ozone_content Pa    
equivalent_temperature K    
equivalent_thickness_at_stp_of_atmosphere_ozone_content
alias: equivalent_thickness_at_stp_of_atmosphere_o3_content
m   10
ertel_potential_vorticity K m2 kg-1 s-1 vorpot  
forecast_period s    
forecast_reference_time s    
fractional_saturation_of_oxygen_in_sea_water 1    
freezing_level_altitude m    
freezing_temperature_of_sea_water K    
frozen_water_content_of_soil_layer kg m-2    
geopotential m2 s-2   6 E129
geopotential_height m zg 7 E156
geopotential_height_anomaly m   27
geostrophic_eastward_wind m s-1    
geostrophic_northward_wind m s-1    
global_average_sea_level_change m    
global_average_thermosteric_sea_level_change m    
grid_latitude degree    
grid_longitude degree    
gross_primary_productivity_of_carbon kg m-2 s-1    
heat_flux_correction W m-2 hfcorr  
height m zh  
height_above_sea_floor m    
height_at_cloud_top m    
heterotrophic_respiration_carbon_flux kg m-2 s-1    
horizontal_atmosphere_dry_energy_transport W m-2    
horizontal_dry_energy_transport_in_atmosphere_layer W m-2    
humidity_mixing_ratio 1   53
integral_of_air_temperature_deficit_wrt_time K s    
integral_of_air_temperature_excess_wrt_time K s    
integral_of_sea_water_temperature_wrt_depth_in_ocean_layer K m    
isccp_cloud_area_fraction 1 clisccp  
isotropic_longwave_radiance_in_air
alias: longwave_radiance
W m-2 sr-1    
isotropic_shortwave_radiance_in_air
alias: shortwave_radiance
W m-2 sr-1    
isotropic_spectral_radiance_in_air
alias: spectral_radiance
W m-2 m-1 sr-1    
kinetic_energy_content_of_atmosphere_layer J m-2    
lagrangian_tendency_of_air_pressure
alias: omega
alias: vertical_air_velocity_expressed_as_tendency_of_pressure
Pa s-1 wap 39 E135
lagrangian_tendency_of_atmosphere_sigma_coordinate
alias: upward_air_velocity_expressed_as_tendency_of_sigma
alias: vertical_air_velocity_expressed_as_tendency_of_sigma
s-1   38
land_area_fraction 1 sftlf 81
land_binary_mask 1   E172
land_cover 1    
land_ice_area_fraction 1 sftgif  
land_ice_basal_melt_rate m s-1    
land_ice_basal_x_velocity m s-1    
land_ice_basal_y_velocity m s-1    
land_ice_calving_rate m s-1    
land_ice_lwe_basal_melt_rate m s-1    
land_ice_lwe_calving_rate m s-1    
land_ice_lwe_surface_specific_mass_balance m s-1    
land_ice_sigma_coordinate 1    
land_ice_surface_specific_mass_balance m s-1    
land_ice_temperature K    
land_ice_thickness m    
land_ice_vertical_mean_x_velocity m s-1    
land_ice_vertical_mean_y_velocity m s-1    
land_ice_x_velocity m s-1    
land_ice_y_velocity m s-1    
large_scale_cloud_area_fraction 1    
large_scale_precipitation_amount kg m-2   62
large_scale_precipitation_flux kg m-2 s-1    
large_scale_rainfall_amount kg m-2    
large_scale_rainfall_flux kg m-2 s-1    
large_scale_rainfall_rate m s-1    
large_scale_snowfall_amount kg m-2   79
large_scale_snowfall_flux kg m-2 s-1    
latitude degree_north latitude  
leaf_area_index 1    
liquid_water_content_of_snow_layer kg m-2    
liquid_water_content_of_soil_layer kg m-2    
litter_carbon_content kg m-2    
litter_carbon_flux kg m-2 s-1    
longitude degree_east longitude  
lwe_convective_precipitation_rate m s-1    
lwe_convective_snowfall_rate m s-1    
lwe_large_scale_precipitation_rate m s-1    
lwe_large_scale_snowfall_rate m s-1    
lwe_precipitation_rate m s-1    
lwe_snowfall_rate m s-1    
lwe_thickness_of_atmosphere_water_vapor_content m   E137
lwe_thickness_of_canopy_water_amount m    
lwe_thickness_of_convective_precipitation_amount m   E143
lwe_thickness_of_convective_snowfall_amount m    
lwe_thickness_of_frozen_water_content_of_soil_layer m    
lwe_thickness_of_large_scale_precipitation_amount m   E142
lwe_thickness_of_large_scale_snowfall_amount m    
lwe_thickness_of_moisture_content_of_soil_layer m    
lwe_thickness_of_precipitation_amount m    
lwe_thickness_of_snowfall_amount m   E144
lwe_thickness_of_soil_moisture_content m   E140
lwe_thickness_of_surface_snow_amount m   E141
lwe_thickness_of_water_evaporation_amount m   E182
lwe_water_evaporation_rate m s-1    
magnitude_of_surface_downward_stress Pa    
mass_concentration_of_oxygen_in_sea_water kg m-3    
mass_concentration_of_sulfate_aerosol_in_air kg m-3 trsul  
mass_fraction_of_cloud_condensed_water_in_air 1    
mass_fraction_of_cloud_ice_in_air 1 cli  
mass_fraction_of_cloud_liquid_water_in_air 1 clw  
mass_fraction_of_convective_cloud_ice_in_air 1    
mass_fraction_of_convective_cloud_liquid_water_in_air 1    
mass_fraction_of_convective_condensed_water_in_air 1    
mass_fraction_of_dimethyl_sulfide_in_air 1    
mass_fraction_of_frozen_water_in_soil_moisture 1    
mass_fraction_of_graupel_in_air 1    
mass_fraction_of_ozone_in_air
alias: mass_fraction_of_o3_in_air
1    
mass_fraction_of_precipitation_in_air 1    
mass_fraction_of_rain_in_air 1    
mass_fraction_of_snow_in_air 1    
mass_fraction_of_stratiform_cloud_ice_in_air 1    
mass_fraction_of_stratiform_cloud_liquid_water_in_air 1    
mass_fraction_of_sulfur_dioxide_in_air 1    
mass_fraction_of_unfrozen_water_in_soil_moisture 1    
mass_fraction_of_water_in_air 1    
model_level_number 1 lev  
model_level_number_at_convective_cloud_base 1    
model_level_number_at_convective_cloud_top 1    
model_level_number_at_top_of_atmosphere_boundary_layer 1    
moisture_content_of_soil_layer kg m-2 mrsos  
moisture_content_of_soil_layer_at_field_capacity kg m-2 mrsofcs  
mole_fraction_of_ozone_in_air
alias: mole_fraction_of_o3_in_air
1 tro3  
moles_of_nitrate_and_nitrite_per_unit_mass_in_sea_water mol kg-1    
moles_of_nitrate_per_unit_mass_in_sea_water mol kg-1    
moles_of_nitrite_per_unit_mass_in_sea_water mol kg-1    
moles_of_oxygen_per_unit_mass_in_sea_water mol kg-1    
moles_of_phosphate_per_unit_mass_in_sea_water mol kg-1    
moles_of_silicate_per_unit_mass_in_sea_water mol kg-1    
net_downward_longwave_flux_in_air W m-2    
net_downward_longwave_flux_in_air_assuming_clear_sky W m-2    
net_downward_radiative_flux_at_top_of_atmosphere_model W m-2 rtmt  
net_downward_shortwave_flux_in_air W m-2    
net_downward_shortwave_flux_in_air_assuming_clear_sky W m-2 rsntpcs  
net_primary_productivity_of_carbon kg m-2 s-1    
net_rate_of_absorption_of_longwave_energy_in_atmosphere_layer W m-2    
net_rate_of_absorption_of_shortwave_energy_in_atmosphere_layer W m-2    
net_upward_longwave_flux_in_air W m-2   115
net_upward_longwave_flux_in_air_assuming_clear_sky W m-2 rlntpcs  
net_upward_shortwave_flux_in_air W m-2   116
net_upward_shortwave_flux_in_air_assuming_clear_sky W m-2    
normalized_difference_vegetation_index 1    
northward_atmosphere_dry_static_energy_transport_across_unit_distance W m-1    
northward_atmosphere_heat_transport W    
northward_atmosphere_water_transport_across_unit_distance kg s-1 m-1    
northward_atmosphere_water_vapor_transport_across_unit_distance kg m-1 s-1    
northward_mass_flux_of_air kg m-2 s-1    
northward_momentum_flux_correction Pa tauvcorr  
northward_ocean_freshwater_transport kg s-1    
northward_ocean_freshwater_transport_due_to_bolus_advection kg s-1    
northward_ocean_freshwater_transport_due_to_diffusion kg s-1    
northward_ocean_freshwater_transport_due_to_gyre kg s-1    
northward_ocean_freshwater_transport_due_to_overturning kg s-1    
northward_ocean_heat_transport W    
northward_ocean_heat_transport_due_to_bolus_advection W    
northward_ocean_heat_transport_due_to_diffusion W htovdiff  
northward_ocean_heat_transport_due_to_gyre W htovgyre  
northward_ocean_heat_transport_due_to_overturning W htovovrt  
northward_ocean_salt_transport kg s-1    
northward_ocean_salt_transport_due_to_bolus_advection kg s-1    
northward_ocean_salt_transport_due_to_diffusion kg s-1 sltovdiff  
northward_ocean_salt_transport_due_to_gyre kg s-1 sltovgyre  
northward_ocean_salt_transport_due_to_overturning kg s-1 sltovovrt  
northward_sea_ice_velocity m s-1   96
northward_sea_water_velocity m s-1   50
northward_water_vapor_flux kg m-2 s-1    
northward_water_vapor_transport_across_unit_distance_in_atmosphere_layer kg m-1 s-1    
northward_wind m s-1 va 34 E132
northward_wind_shear s-1   46
ocean_barotropic_streamfunction m3 s-1 stfbaro  
ocean_integral_of_sea_water_temperature_wrt_depth K m    
ocean_isopycnal_layer_thickness_diffusivity m2 s-1    
ocean_meridional_overturning_streamfunction m3 s-1 stfmmcgo  
ocean_mixed_layer_thickness m   67
ocean_mixed_layer_thickness_defined_by_mixing_scheme m    
ocean_mixed_layer_thickness_defined_by_sigma_t m    
ocean_mixed_layer_thickness_defined_by_sigma_theta m    
ocean_mixed_layer_thickness_defined_by_temperature m    
ocean_s_coordinate 1    
ocean_sigma_coordinate 1    
ocean_volume m3    
ocean_volume_fraction 1    
omnidirectional_photosynthetic_spherical_irradiance_in_sea_water W m-2    
omnidirectional_spectral_spherical_irradiance_in_sea_water W m-3    
optical_thickness_of_atmosphere_layer_due_to_aerosol 1    
planetary_albedo 1    
plant_respiration_carbon_flux kg m-2 s-1    
platform_course degree    
platform_orientation degree    
platform_pitch_angle degree    
platform_pitch_rate degree s-1    
platform_roll_angle degree    
platform_roll_rate degree s-1    
platform_speed_wrt_air m s-1    
platform_speed_wrt_ground m s-1    
platform_speed_wrt_sea_water m s-1    
platform_yaw_angle degree    
platform_yaw_rate degree s-1    
potential_energy_content_of_atmosphere_layer J m-2    
potential_vorticity_of_atmosphere_layer Pa-1 s-1    
potential_vorticity_of_ocean_layer m-1 s-1    
precipitation_amount kg m-2   61
precipitation_flux kg m-2 s-1 pr 59
precipitation_flux_onto_canopy_where_land kg m-2 s-1 prveg  
product_of_air_temperature_and_omega K Pa s-1    
product_of_air_temperature_and_specific_humidity K    
product_of_eastward_sea_water_velocity_and_salinity m s-1    
product_of_eastward_sea_water_velocity_and_temperature K m s-1    
product_of_eastward_wind_and_air_temperature K m s-1    
product_of_eastward_wind_and_geopotential_height m2 s-1 mpuzga  
product_of_eastward_wind_and_northward_wind m2 s-2 mpuva  
product_of_eastward_wind_and_omega Pa m s-2    
product_of_eastward_wind_and_specific_humidity m s-1    
product_of_eastward_wind_and_upward_air_velocity m2 s-2    
product_of_geopotential_height_and_omega Pa m s-1    
product_of_northward_sea_water_velocity_and_salinity m s-1    
product_of_northward_sea_water_velocity_and_temperature K m s-1    
product_of_northward_wind_and_air_temperature K m s-1 mpvta  
product_of_northward_wind_and_geopotential_height m2 s-1 mpvzga  
product_of_northward_wind_and_omega Pa m s-2    
product_of_northward_wind_and_specific_humdity m s-1    
product_of_northward_wind_and_specific_humidity m s-1 mpvhusa  
product_of_northward_wind_and_upward_air_velocity m2 s-2    
product_of_omega_and_air_temperature K Pa s-1 mpwapta  
product_of_omega_and_specific_humidity Pa s-1 mpwhusa  
product_of_specific_humidity_and_omega Pa s-1    
product_of_upward_air_velocity_and_air_temperature K m s-1    
product_of_upward_air_velocity_and_specific_humidity m s-1    
projection_x_coordinate m    
projection_y_coordinate m    
pseudo_equivalent_potential_temperature K   14
pseudo_equivalent_temperature K    
radial_velocity_of_scatterers_away_from_instrument m s-1    
radiation_wavelength
alias: electromagnetic_wavelength
m    
rainfall_amount kg m-2    
rainfall_flux kg m-2 s-1    
rainfall_rate m s-1    
realization 1    
region string    
relative_humidity 1 hur 52 E157
root_depth m    
runoff_amount kg m-2    
runoff_amount_excluding_baseflow kg m-2    
runoff_flux kg m-2 s-1 mrro  
scattering_angle rad    
sea_area m2    
sea_area_fraction 1    
sea_floor_depth_below_geoid
alias: sea_floor_depth
m zobt  
sea_floor_depth_below_sea_level m    
sea_ice_amount kg m-2    
sea_ice_area m2    
sea_ice_area_fraction 1 sic 91
sea_ice_draft m    
sea_ice_extent m2    
sea_ice_freeboard m    
sea_ice_mass kg    
sea_ice_speed m s-1   94
sea_ice_temperature K    
sea_ice_thickness m sit 92
sea_ice_transport_across_line kg s-1    
sea_ice_volume m3    
sea_ice_x_velocity m s-1    
sea_ice_y_velocity m s-1    
sea_surface_height_above_geoid
alias: sea_surface_elevation
alias: sea_surface_elevation_anomaly
m    
sea_surface_height_above_reference_ellipsoid m    
sea_surface_height_above_sea_level
alias: sea_surface_height
m   82
sea_surface_salinity 1e-3    
sea_surface_swell_wave_period
alias: swell_wave_period
s   106
sea_surface_swell_wave_significant_height
alias: significant_height_of_swell_waves
m   105
sea_surface_swell_wave_to_direction
alias: direction_of_swell_wave_velocity
degree   104
sea_surface_swell_wave_zero_upcrossing_period s    
sea_surface_temperature K    
sea_surface_wave_directional_variance_spectral_density m2 s-1 rad-1    
sea_surface_wave_frequency s-1    
sea_surface_wave_from_direction degree    
sea_surface_wave_significant_height
alias: significant_height_of_wind_and_swell_waves
m   100
sea_surface_wave_to_direction degree    
sea_surface_wave_variance_spectral_density m2 s-1    
sea_surface_wave_zero_upcrossing_period s    
sea_surface_wind_wave_period
alias: wind_wave_period
s   103
sea_surface_wind_wave_significant_height
alias: significant_height_of_wind_waves
m   102
sea_surface_wind_wave_to_direction
alias: direction_of_wind_wave_velocity
degree   101
sea_surface_wind_wave_zero_upcrossing_period s    
sea_water_density kg m-3    
sea_water_electrical_conductivity S m-1    
sea_water_potential_density kg m-3    
sea_water_potential_temperature K    
sea_water_pressure dbar    
sea_water_salinity 1e-3 so 88
sea_water_sigma_t kg m-3    
sea_water_sigma_theta kg m-3    
sea_water_speed m s-1   48
sea_water_temperature K to 80
sea_water_x_velocity
alias: x_sea_water_velocity
m s-1    
sea_water_y_velocity
alias: y_sea_water_velocity
m s-1    
snow_density kg m-3    
snow_grain_size m    
snow_soot_content kg m-2    
snow_temperature K   E238
snow_thermal_energy_content J m-2    
snowfall_amount kg m-2    
snowfall_flux kg m-2 s-1 prsn 64
soil_albedo 1    
soil_carbon_content kg m-2    
soil_frozen_water_content kg m-2 mrfso  
soil_hydraulic_conductivity_at_saturation m s-1    
soil_moisture_content kg m-2 mrso 86
soil_moisture_content_at_field_capacity kg m-2 mrsofc  
soil_porosity 1    
soil_respiration_carbon_flux kg m-2 s-1    
soil_suction_at_saturation Pa    
soil_temperature K   85
soil_thermal_capacity J kg-1 K-1    
soil_thermal_conductivity W m-1 K-1    
soil_type 1    
solar_azimuth_angle degree    
solar_elevation_angle degree    
solar_zenith_angle degree    
sound_frequency s-1    
sound_intensity_in_air W m-2    
sound_intensity_in_water W m-2    
sound_intensity_level_in_air dB    
sound_intensity_level_in_water dB    
sound_pressure_in_air Pa    
sound_pressure_in_water Pa    
sound_pressure_level_in_air dB    
sound_pressure_level_in_water dB    
specific_dry_energy_of_air m2 s-2    
specific_gravitational_potential_energy
alias: specific_potential_energy
J kg-1    
specific_humidity 1 hus 51 E133
specific_kinetic_energy_of_air m2 s-2    
speed_of_sound_in_air m s-1    
speed_of_sound_in_sea_water m s-1    
square_of_air_temperature K2 mptta  
square_of_brunt_vaisala_frequency_in_air s-2   N138
square_of_eastward_wind m2 s-2 mpuua  
square_of_geopotential_height m2    
square_of_lagrangian_tendency_of_air_pressure Pa2 s-2    
square_of_northward_wind m2 s-2 mpvva  
square_of_upward_air_velocity m2 s-2    
stratiform_cloud_area_fraction_in_atmosphere_layer 1    
subsurface_runoff_amount kg m-2    
subsurface_runoff_flux kg m-2 s-1    
surface_air_pressure Pa ps E134
surface_albedo 1   84 E174
surface_albedo_assuming_deep_snow 1    
surface_albedo_assuming_no_snow 1    
surface_altitude m orog  
surface_carbon_dioxide_mole_flux mol m-2 s-1    
surface_carbon_dioxide_partial_pressure_difference_between_air_and_sea_water Pa    
surface_cover string    
surface_diffuse_downwelling_photosynthetic_radiative_flux_in_air W m-2    
surface_downward_eastward_stress Pa tauu E180
surface_downward_heat_flux_in_air W m-2 hfns  
surface_downward_heat_flux_in_sea_water W m-2    
surface_downward_latent_heat_flux W m-2    
surface_downward_northward_stress Pa tauv E181
surface_downward_sensible_heat_flux W m-2    
surface_downward_water_flux kg m-2 s-1    
surface_downward_x_stress Pa    
surface_downward_y_stress Pa    
surface_downwelling_longwave_flux_in_air
alias: surface_downwelling_longwave_flux
W m-2 rlds  
surface_downwelling_longwave_flux_in_air_assuming_clear_sky
alias: surface_downwelling_longwave_flux
W m-2 rldscs  
surface_downwelling_photon_flux_in_sea_water mol m-2 s-1    
surface_downwelling_photon_radiance_in_sea_water mol m-2 s-1 sr-1    
surface_downwelling_photon_spherical_irradiance_in_sea_water mol m-2 s-1    
surface_downwelling_photosynthetic_photon_flux_in_air mol m-2 s-1    
surface_downwelling_photosynthetic_photon_flux_in_sea_water mol m-2 s-1    
surface_downwelling_photosynthetic_photon_radiance_in_sea_water mol m-2 s-1 sr-1    
surface_downwelling_photosynthetic_photon_spherical_irradiance_in_sea_water mol m-2 s-1    
surface_downwelling_photosynthetic_radiance_in_sea_water W m-2 sr-1    
surface_downwelling_photosynthetic_radiative_flux_in_air W m-2    
surface_downwelling_photosynthetic_radiative_flux_in_sea_water W m-2    
surface_downwelling_photosynthetic_spherical_irradiance_in_sea_water W m-2    
surface_downwelling_radiance_in_sea_water W m-2 sr-1    
surface_downwelling_radiative_flux_in_sea_water W m-2    
surface_downwelling_shortwave_flux_in_air
alias: surface_downwelling_shortwave_flux
W m-2 rsds 117 E169
surface_downwelling_shortwave_flux_in_air_assuming_clear_sky
alias: surface_downwelling_shortwave_flux_assuming_clear_sky
W m-2 rsdscs  
surface_downwelling_spectral_photon_flux_in_sea_water mol m-2 s-1 m-1    
surface_downwelling_spectral_photon_radiance_in_sea_water mol m-2 s-1 m-1 sr-1    
surface_downwelling_spectral_photon_spherical_irradiance_in_sea_water mol m-2 s-1 m-1    
surface_downwelling_spectral_radiance_in_sea_water W m-2 m-1 sr-1    
surface_downwelling_spectral_radiative_flux_in_air W m-2 m-1    
surface_downwelling_spectral_radiative_flux_in_sea_water W m-2 m-1    
surface_downwelling_spectral_spherical_irradiance_in_sea_water W m-2 m-1    
surface_downwelling_spherical_irradiance_in_sea_water W m-2    
surface_drag_coefficient_for_heat_in_air
alias: atmosphere_surface_drag_coefficient_of_heat
1    
surface_drag_coefficient_for_momentum_in_air
alias: atmosphere_surface_drag_coefficient_of_momentum
1    
surface_drag_coefficient_in_air
alias: atmosphere_surface_drag_coefficient
1    
surface_eastward_geostrophic_sea_water_velocity m s-1    
surface_eastward_geostrophic_sea_water_velocity_assuming_sea_level_for_geoid m s-1    
surface_eastward_sea_water_velocity m s-1    
surface_geopotential m2 s-2    
surface_net_downward_longwave_flux W m-2 rls  
surface_net_downward_longwave_flux_assuming_clear_sky W m-2   E211
surface_net_downward_radiative_flux_where_land W m-2    
surface_net_downward_shortwave_flux W m-2 rss  
surface_net_downward_shortwave_flux_assuming_clear_sky W m-2   E210
surface_net_upward_longwave_flux W m-2   112 E176
surface_net_upward_radiative_flux W m-2    
surface_net_upward_shortwave_flux W m-2   111 E177
surface_northward_geostrophic_sea_water_velocity m s-1    
surface_northward_geostrophic_sea_water_velocity_assuming_sea_level_for_geoid m s-1    
surface_northward_sea_water_velocity m s-1    
surface_partial_pressure_of_carbon_dioxide_in_air Pa    
surface_partial_pressure_of_carbon_dioxide_in_sea_water Pa    
surface_roughness_length m   83 E173
surface_roughness_length_for_heat_in_air m    
surface_roughness_length_for_momentum_in_air m    
surface_runoff_amount kg m-2   90
surface_runoff_flux kg m-2 s-1 mrros  
surface_snow_amount kg m-2 snw 65
surface_snow_area_fraction 1 snc  
surface_snow_melt_amount kg m-2   99
surface_snow_melt_and_sublimation_heat_flux W m-2    
surface_snow_melt_flux kg m-2 s-1 snm  
surface_snow_melt_heat_flux W m-2    
surface_snow_sublimation_amount kg m-2    
surface_snow_sublimation_heat_flux W m-2    
surface_snow_thickness m snd 66
surface_snow_thickness_where_sea_ice m    
surface_specific_humidity 1    
surface_temperature K ts E139
surface_temperature_anomaly K    
surface_temperature_where_land K    
surface_temperature_where_open_sea K    
surface_temperature_where_snow K    
surface_upward_heat_flux_in_air W m-2    
surface_upward_latent_heat_flux W m-2 hfls 121 E147
surface_upward_sensible_heat_flux W m-2 hfss 122 E146
surface_upward_sensible_heat_flux_where_sea W m-2    
surface_upward_water_flux kg m-2 s-1    
surface_upwelling_longwave_flux_in_air
alias: surface_upwelling_longwave_flux
W m-2 rlus  
surface_upwelling_longwave_flux_in_air_assuming_clear_sky
alias: surface_upwelling_longwave_flux_assuming_clear_sky
W m-2    
surface_upwelling_photosynthetic_photon_flux_in_air mol m-2 s-1    
surface_upwelling_radiance_in_air W m-2 sr-1    
surface_upwelling_radiance_in_air_emerging_from_sea_water W m-2 sr-1    
surface_upwelling_radiance_in_air_reflected_by_sea_water W m-2 sr-1    
surface_upwelling_radiance_in_sea_water W m-2 sr-1    
surface_upwelling_shortwave_flux_in_air
alias: surface_upwelling_shortwave_flux
W m-2 rsus  
surface_upwelling_shortwave_flux_in_air_assuming_clear_sky
alias: surface_upwelling_shortwave_flux_assuming_clear_sky
W m-2 rsuscs  
surface_upwelling_spectral_radiance_in_air W m-2 m-1 sr-1    
surface_upwelling_spectral_radiance_in_air_emerging_from_sea_water W m-2 m-1 sr-1    
surface_upwelling_spectral_radiance_in_air_reflected_by_sea_water W m-2 m-1 sr-1    
surface_upwelling_spectral_radiance_in_sea_water W m-2 m-1 sr-1    
surface_upwelling_spectral_radiative_flux_in_air W m-2 m-1    
surface_upwelling_spectral_radiative_flux_in_sea_water W m-2 m-1    
surface_water_amount kg m-2    
temperature_of_sensor_for_oxygen_in_sea_water K    
tendency_of_air_density kg m-3 s-1    
tendency_of_air_pressure Pa s-1   3
tendency_of_air_temperature K s-1    
tendency_of_air_temperature_due_to_advection K s-1    
tendency_of_air_temperature_due_to_diabatic_processes K s-1 tnt  
tendency_of_air_temperature_due_to_diffusion K s-1    
tendency_of_air_temperature_due_to_dry_convection K s-1 tntdc  
tendency_of_air_temperature_due_to_large_scale_precipitation K s-1 tntlsp  
tendency_of_air_temperature_due_to_longwave_heating K s-1 tntlw  
tendency_of_air_temperature_due_to_longwave_heating_assuming_clear_sky K s-1    
tendency_of_air_temperature_due_to_moist_convection K s-1 tntmc  
tendency_of_air_temperature_due_to_radiative_heating K s-1    
tendency_of_air_temperature_due_to_shortwave_heating K s-1 tntsw  
tendency_of_air_temperature_due_to_shortwave_heating_assuming_clear_sky K s-1    
tendency_of_air_temperature_due_to_turbulence K s-1    
tendency_of_atmosphere_dry_energy_content W m-2    
tendency_of_atmosphere_enthalpy_content_due_to_advection W m-2    
tendency_of_atmosphere_kinetic_energy_content_due_to_advection W m-2    
tendency_of_atmosphere_mass_per_unit_area kg m-2 s-1    
tendency_of_atmosphere_mass_per_unit_area_due_to_advection kg m-2 s-1    
tendency_of_atmosphere_potential_energy_content_due_to_advection W m-2    
tendency_of_atmosphere_water_content_due_to_advection kg m-2 s-1    
tendency_of_atmosphere_water_vapor_content kg m-2 s-1    
tendency_of_atmosphere_water_vapor_content_due_to_advection kg m-2 s-1    
tendency_of_atmosphere_water_vapor_content_due_to_convection kg m-2 s-1    
tendency_of_atmosphere_water_vapor_content_due_to_deep_convection kg m-2 s-1    
tendency_of_atmosphere_water_vapor_content_due_to_shallow_convection kg m-2 s-1    
tendency_of_atmosphere_water_vapor_content_due_to_turbulence kg m-2 s-1    
tendency_of_bedrock_altitude m s-1    
tendency_of_dry_energy_content_of_atmosphere_layer W m-2    
tendency_of_dry_static_energy_content_of_atmosphere_layer W m-2    
tendency_of_eastward_wind m s-2 tnmmutot  
tendency_of_eastward_wind_due_to_advection m s-2    
tendency_of_eastward_wind_due_to_convection m s-2 tnmmuc  
tendency_of_eastward_wind_due_to_diffusion m s-2    
tendency_of_eastward_wind_due_to_gravity_wave_drag m s-2 tnmmugwd  
tendency_of_enthalpy_content_of_atmosphere_layer_due_to_advection W m-2    
tendency_of_kinetic_energy_content_of_atmosphere_layer_due_to_advection W m-2    
tendency_of_land_ice_thickness m s-1    
tendency_of_mass_fraction_of_cloud_condensed_water_in_air_due_to_advection s-1    
tendency_of_mass_fraction_of_cloud_ice_in_air s-1    
tendency_of_mass_fraction_of_cloud_ice_in_air_due_to_advection s-1    
tendency_of_mass_fraction_of_cloud_ice_in_air_due_to_diffusion s-1    
tendency_of_mass_fraction_of_cloud_liquid_water_in_air s-1    
tendency_of_mass_fraction_of_cloud_liquid_water_in_air_due_to_advection s-1    
tendency_of_mass_fraction_of_cloud_liquid_water_in_air_due_to_diffusion s-1    
tendency_of_northward_wind m s-2 tnmmvtot  
tendency_of_northward_wind_due_to_advection m s-2    
tendency_of_northward_wind_due_to_convection m s-2 tnmmvc  
tendency_of_northward_wind_due_to_diffusion m s-2    
tendency_of_northward_wind_due_to_gravity_wave_drag m s-2 tnmmvgwd  
tendency_of_ocean_barotropic_streamfunction m3 s-2    
tendency_of_potential_energy_content_of_atmosphere_layer_due_to_advection W m-2    
tendency_of_sea_ice_thickness_due_to_thermodynamics m s-1   97
tendency_of_specific_humidity s-1    
tendency_of_specific_humidity_due_to_advection s-1    
tendency_of_specific_humidity_due_to_convection s-1 tnmrc  
tendency_of_specific_humidity_due_to_diffusion s-1    
tendency_of_specific_humidity_due_to_model_physics s-1 tnmrd  
tendency_of_surface_air_pressure Pa s-1   E158
tendency_of_surface_snow_amount kg m-2 s-1    
tendency_of_upward_air_velocity m s-2    
tendency_of_upward_air_velocity_due_to_advection m s-2    
tendency_of_water_vapor_content_of_atmosphere_layer kg m-2 s-1    
tendency_of_water_vapor_content_of_atmosphere_layer_due_to_convection kg m-2 s-1    
tendency_of_water_vapor_content_of_atmosphere_layer_due_to_deep_convection kg m-2 s-1    
tendency_of_water_vapor_content_of_atmosphere_layer_due_to_shallow_convection kg m-2 s-1    
tendency_of_water_vapor_content_of_atmosphere_layer_due_to_turbulence kg m-2 s-1    
tendency_of_wind_speed_due_to_convection m s-2    
tendency_of_wind_speed_due_to_gravity_wave_drag m s-2    
thickness_of_convective_rainfall_amount m    
thickness_of_convective_snowfall_amount m    
thickness_of_large_scale_rainfall_amount m    
thickness_of_large_scale_snowfall_amount m    
thickness_of_rainfall_amount m    
thickness_of_snowfall_amount m    
thunderstorm_probability 1   60
time s time  
toa_adjusted_longwave_forcing W m-2    
toa_adjusted_radiative_forcing W m-2    
toa_adjusted_shortwave_forcing W m-2    
toa_incoming_shortwave_flux W m-2 rsdt  
toa_instantaneous_longwave_forcing W m-2    
toa_instantaneous_radiative_forcing W m-2    
toa_instantaneous_shortwave_forcing W m-2    
toa_net_downward_radiative_flux W m-2    
toa_net_downward_shortwave_flux W m-2 rst  
toa_net_downward_shortwave_flux_assuming_clear_sky W m-2    
toa_net_upward_longwave_flux W m-2    
toa_net_upward_longwave_flux_assuming_clear_sky W m-2    
toa_net_upward_shortwave_flux W m-2   113 E178
toa_outgoing_longwave_flux W m-2 rlut 114 E179
toa_outgoing_longwave_flux_assuming_clear_sky W m-2 rlutcs  
toa_outgoing_shortwave_flux W m-2 rsut  
toa_outgoing_shortwave_flux_assuming_clear_sky W m-2 rsutcs  
transpiration_amount kg m-2    
transpiration_flux kg m-2 s-1    
tropopause_adjusted_longwave_forcing W m-2    
tropopause_adjusted_radiative_forcing W m-2    
tropopause_adjusted_shortwave_forcing W m-2    
tropopause_air_pressure Pa    
tropopause_air_temperature K    
tropopause_altitude m    
tropopause_downwelling_longwave_flux W m-2    
tropopause_instantaneous_longwave_forcing W m-2    
tropopause_instantaneous_radiative_forcing W m-2    
tropopause_instantaneous_shortwave_forcing W m-2    
tropopause_net_downward_longwave_flux W m-2    
tropopause_net_downward_shortwave_flux W m-2    
tropopause_upwelling_shortwave_flux W m-2    
upward_air_velocity m s-1   40
upward_dry_static_energy_flux_due_to_diffusion W m-2    
upward_eastward_stress_at_sea_ice_base Pa    
upward_heat_flux_at_ground_level_in_snow W m-2    
upward_heat_flux_at_ground_level_in_soil W m-2    
upward_heat_flux_in_air W m-2    
upward_mass_flux_of_air kg m-2 s-1    
upward_northward_stress_at_sea_ice_base Pa    
upward_sea_ice_basal_heat_flux W m-2    
upward_sea_water_velocity m s-1    
upward_water_vapor_flux_in_air kg m-2 s-1    
upward_water_vapor_flux_in_air_due_to_diffusion kg m-2 s-1    
upwelling_longwave_flux_in_air W m-2    
upwelling_longwave_radiance_in_air W m-2 sr-1    
upwelling_shortwave_flux_in_air W m-2    
upwelling_shortwave_radiance_in_air W m-2 sr-1    
upwelling_spectral_radiance_in_air W m-2 m-1 sr-1    
upwelling_spectral_radiative_flux_in_air W m-2 m-1    
upwelling_spectral_radiative_flux_in_sea_water W m-2 m-1    
vegetation_area_fraction 1   87
vegetation_carbon_content kg m-2    
virtual_temperature K   12
visibility_in_air m   20
volume_absorption_coefficient_of_radiative_flux_in_sea_water m-1    
volume_absorption_coefficient_of_radiative_flux_in_sea_water_due_to_dissolved_organic_matter m-1    
volume_attenuation_coefficient_of_downwelling_radiative_flux_in_sea_water m-1    
volume_backwards_scattering_coefficient_of_radiative_flux_in_sea_water m-1    
volume_beam_attenuation_coefficient_of_radiative_flux_in_sea_water m-1    
volume_fraction_of_clay_in_soil 1    
volume_fraction_of_frozen_water_in_soil 1    
volume_fraction_of_sand_in_soil 1    
volume_fraction_of_silt_in_soil 1    
volume_fraction_of_water_in_soil 1    
volume_fraction_of_water_in_soil_at_critical_point 1    
volume_fraction_of_water_in_soil_at_field_capacity 1    
volume_fraction_of_water_in_soil_at_wilting_point 1    
volume_mixing_ratio_of_oxygen_at_stp_in_sea_water 1    
volume_scattering_coefficient_of_radiative_flux_in_sea_water m-1    
volume_scattering_function_of_radiative_flux_in_sea_water m-1 sr-1    
water_content_of_atmosphere_layer kg m-2    
water_evaporation_amount kg m-2   57
water_evaporation_amount_from_canopy
alias: water_evaporation_amount_from_canopy_where_land
kg m-2    
water_evaporation_flux kg m-2 s-1 evspsbl  
water_evaporation_flux_from_canopy kg m-2 s-1    
water_evaporation_flux_from_canopy_where_land kg m-2 s-1 evspsblveg  
water_evaporation_flux_from_soil kg m-2 s-1    
water_evaporation_flux_where_sea_ice kg m-2 s-1    
water_flux_correction kg m-2 s-1    
water_flux_into_ocean kg m-2 s-1 wfo  
water_flux_into_ocean_from_rivers kg m-2 s-1    
water_potential_evaporation_amount kg m-2    
water_potential_evaporation_flux kg m-2 s-1    
water_sublimation_flux kg m-2 s-1    
water_vapor_content_of_atmosphere_layer kg m-2    
water_vapor_pressure Pa   55
water_vapor_saturation_deficit Pa   56
water_volume_transport_into_ocean_from_rivers m3 s-1    
wet_bulb_temperature K    
wind_from_direction degree   31
wind_mixing_energy_flux_into_ocean W m-2   126
wind_speed m s-1   32
wind_speed_of_gust m s-1    
wind_speed_shear s-1   N136
wind_to_direction degree    
x_wind
alias: grid_eastward_wind
m s-1    
y_wind
alias: grid_northward_wind
m s-1    
zenith_angle degree