NCEP Parameter Code Table 1
PRES
Pressure
Pa
air_pressure
EARTH SCIENCE > Atmosphere > Atmospheric Pressure > Surface Pressure
EARTH SCIENCE > Atmosphere > Clouds > Cloud Base Pressure
EARTH SCIENCE > Atmosphere > Clouds > Cloud Top Pressure
EARTH SCIENCE > Atmosphere > Altitude > Tropopause
EARTH SCIENCE > Atmosphere > Atmospheric Pressure > Sea Level Pressure
EARTH SCIENCE > Atmosphere > Clouds > Cloud Base Pressure
EARTH SCIENCE > Atmosphere > Clouds > Cloud Top Pressure
EARTH SCIENCE > Atmosphere > Clouds > Cloud Base Pressure
EARTH SCIENCE > Atmosphere > Clouds > Cloud Top Pressure
EARTH SCIENCE > Atmosphere > Clouds > Cloud Base Pressure
EARTH SCIENCE > Atmosphere > Clouds > Cloud Top Pressure
EARTH SCIENCE > Atmosphere > Atmospheric Pressure > Hydrostatic Pressure
PRMSL
Pressure reduced to MSL
Pa
EARTH SCIENCE > Atmosphere > Atmospheric Pressure > Sea Level Pressure
PTEND
Pressure tendency
Pa s^-1
tendency_of_air_pressure
EARTH SCIENCE > Atmosphere > Atmospheric Pressure > Pressure Tendency
GP
Geopotential
m^2 s^-2
EARTH SCIENCE > Land Surface > Topography > Terrain Elevation
EARTH SCIENCE > Atmosphere > Altitude > Geopotential Height
geopotential
HGT
Geopotential height
gpm
geopotential_height
EARTH SCIENCE > Land Surface > Topography > Terrain Elevation
EARTH SCIENCE > Atmosphere > Altitude > Geopotential Height
DIST
Geometric height
m
altitude
TOZNE
Total ozone
Dobson
equivalent_thickness_at_stp_of_atmosphere_o3_content
EARTH SCIENCE > Atmosphere > Air Quality > Tropospheric Ozone
TMP
Temperature
K
air_temperature
EARTH SCIENCE > Land Surface > Land Temperature > Skin Temperature;EARTH SCIENCE > Oceans > Ocean Temperature > Sea Surface Temperature
EARTH SCIENCE > Atmosphere > Atmospheric Temperature > Surface Air Temperature
EARTH SCIENCE > Land Surface > Soils > Soil Temperature
EARTH SCIENCE > Atmosphere > Atmospheric Temperature > Air Temperature
VTMP
Virtual temperature
K
virtual_temperature
EARTH SCIENCE > Atmosphere > Atmospheric Temperature > Virtual Temperature
POT
Potential temperature
K
air_potential_temperature
EARTH SCIENCE > Atmosphere > Atmospheric Temperature > Potential Temperature
EPOT
Pseudo-adiabatic potential temperature
K
pseudo_equivalent_potential_temperature
T MAX
Maximum temperature
K
maximum_air_temperature
EARTH SCIENCE > Atmosphere > Atmospheric Temperature > Maximum/Minimum Temperature
T MIN
Minimum temperature
K
minimum_air_temperature
EARTH SCIENCE > Atmosphere > Atmospheric Temperature > Maximum/Minimum Temperature
DPT
Dewpoint temperature
K
dew_point_temperature
EARTH SCIENCE > Atmosphere > Atmospheric Water Vapor > Dew Point Temperature
DEPR
Dewpoint depression (or deficit)
K
dew_point_depression
EARTH SCIENCE > Atmosphere > Atmospheric Water Vapor > Dew Point Temperature
LAPR
Lapse rate
K m^-1
air_temperature_lapse_rate
RDSP1
Radar spectra (1)
RDSP2
Radar spectra (2)
RDSP3
Radar spectra (3)
TMP A
Temperature anomaly
K
air_temperature_anomaly
PRESA
Pressure anomaly
Pa
air_pressure_anomaly
GPA
Geopotential height anomaly
gpm
geopotential_height_anomaly
EARTH SCIENCE > Atmosphere > Altitude > Geopotential Height
WVSP1
Wave spectra (1)
WVSP2
Wave spectra (2)
WVSP3
Wave spectra (3)
WDIR
Wind direction
deg
wind_from_direction
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Surface Winds
WIND
Wind speed
m s^-1
wind_speed
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Surface Winds
U GRD
u-component of wind
m s^-1
eastward_wind
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Surface Winds
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Upper Level Winds
V GRD
v-component of wind
m s^-1
northward_wind
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Surface Winds
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Upper Level Winds
STRM
Stream function
m^2 s
atmosphere_horizontal_streamfunction
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Streamfunctions
V POT
Velocity potential
m^2 s
atmosphere_horizontal_velocity_potential
MNTSF
Montgomery stream function
m^2 s^-2
atmosphere_horizontal_montgomery_streamfunction
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Streamfunctions
SGCVV
Sigma coordinate vertical velocity
s^-1
lagrangian_tendency_of_atmosphere_sigma_coordinate
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Vertical Wind Motion
V VEL
Pressure vertical velocity
Pa s^-1
lagrangian_tendency_of_air_pressure
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Vertical Wind Motion
DZDT
Geometric vertical velocity
m s^-1
upward_air_velocity
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Vertical Wind Motion
ABS V
Absolute vorticity
s^-1
atmosphere_absolute_vorticity
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Vorticity
ABS D
Absolute divergence
s^-1
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Convergence/Divergence
REL V
Relative vorticity
s^-1
atmosphere_relative_vorticity
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Vorticity
REL D
Relative divergence
s^-1
divergence_of_wind
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Convergence/Divergence
VUCSH
Vertical u-component shear
s^-1
eastward_wind_shear
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Wind Shear
VVCSH
Vertical v-component shear
s^-1
northward_wind_shear
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Wind Shear
DIR C
Direction of current
deg
direction_of_sea_water_velocity
EARTH SCIENCE > Oceans > Ocean Circulation > Ocean Currents
SP C
Speed of current
m s^-1
sea_water_speed
EARTH SCIENCE > Oceans > Ocean Circulation > Ocean Currents
UOGRD
u-component of current
m s^-1
eastward_sea_water_velocity
EARTH SCIENCE > Oceans > Ocean Circulation > Ocean Currents
VOGRD
v-component of current
m s^-1
northward_sea_water_velocity
EARTH SCIENCE > Oceans > Ocean Circulation > Ocean Currents
SPF H
Specific humidity
kg kg^-1
specific_humidity
EARTH SCIENCE > Atmosphere > Atmospheric Water Vapor > Humidity
R H
Relative humidity
%
relative_humidity
EARTH SCIENCE > Atmosphere > Atmospheric Water Vapor > Humidity
MIXR
Humidity mixing ratio
kg kg^-1
humidity_mixing_ratio
EARTH SCIENCE > Atmosphere > Atmospheric Water Vapor > Humidity
P WAT
Precipitable water
kg m^-2
atmosphere_water_vapor_content
EARTH SCIENCE > Atmosphere > Atmospheric Water Vapor > Precipitable Water
VAPP
Vapor pressure
Pa
water_vapor_pressure
EARTH SCIENCE > Atmosphere > Atmospheric Water Vapor > Water Vapor
SAT D
Saturation deficit
Pa
water_vapor_saturation_deficit
EARTH SCIENCE > Atmosphere > Atmospheric Water Vapor > Water Vapor
EVP
Evaporation
kg m^-2
water_evaporation_amount
EARTH SCIENCE > Atmosphere > Atmospheric Water Vapor > Evaporation
PRATE
Precipitation rate
kg m^-2 s
precipitation_flux
EARTH SCIENCE > Atmosphere > Precipitation > Precipitation Rate
TSTM
Thunderstorm probability
%
thunderstorm_probability
A PCP
Total precipitation
kg m^-2
precipitation_amount
EARTH SCIENCE > Atmosphere > Precipitation > Precipitation Amount
NCPCP
Large scale precipitation
kg m^-2
large_scale_precipitation_amount
EARTH SCIENCE > Atmosphere > Precipitation > Precipitation Amount
ACPCP
Convective precipitation
kg m^-2
convective_precipitation_amount
EARTH SCIENCE > Atmosphere > Precipitation > Precipitation Amount
SRWEQ
Snowfall rate water equivalent
kg m^-2 s
snowfall_flux
EARTH SCIENCE > Hydrosphere > Snow/Ice > Snow Water Equivalent
WEASD
Water equivalent of accumulated snow depth
kg m^-2
surface_snow_amount
EARTH SCIENCE > Hydrosphere > Snow/Ice > Snow Water Equivalent
SNO D
Snow depth
m
surface_snow_thickness
EARTH SCIENCE > Hydrosphere > Snow/Ice > Snow Depth
MIXHT
Mixed layer depth
m
ocean_mixed_layer_thickness
TTHDP
Transient thermocline depth
m
EARTH SCIENCE > Oceans > Ocean Temperature > Thermocline
MTHD
Main thermocline depth
m
EARTH SCIENCE > Oceans > Ocean Temperature > Thermocline
MTH A
Main thermocline anomaly
m
EARTH SCIENCE > Oceans > Ocean Temperature > Thermocline
T CDC
Total cloud cover
%
cloud_area_fraction
EARTH SCIENCE > Atmosphere > Clouds > Cloud Amount/Frequency
CDCON
Convective cloud cover
%
convective_cloud_area_fraction
EARTH SCIENCE > Atmosphere > Clouds > Cloud Amount/Frequency
L CDC
Low cloud cover
%
EARTH SCIENCE > Atmosphere > Clouds > Cloud Amount/Frequency
M CDC
Medium cloud cover
%
EARTH SCIENCE > Atmosphere > Clouds > Cloud Amount/Frequency
H CDC
High cloud cover
%
EARTH SCIENCE > Atmosphere > Clouds > Cloud Amount/Frequency
C WAT
Cloud water
kg m^-2
atmosphere_cloud_condensed_water_content
EARTH SCIENCE > Atmosphere > Clouds > Cloud Liquid Water/Ice
Condensation pressure of parcel lifted from indicated surface
WTMP
Water temperature
K
sea_water_temperature
EARTH SCIENCE > Oceans > Ocean Temperature > Sea Surface Temperature
EARTH SCIENCE > Oceans > Ocean Temperature > Water Temperature
LAND
Land cover
fraction
land_area_fraction
EARTH SCIENCE > Land Surface > Land Use/Land Cover > Land Cover
DSL M
Deviation of sea level from mean
m
sea_surface_height_above_sea_level
EARTH SCIENCE > Oceans > Coastal Processes > Sea Level Rise
SFC R
Surface roughness
m
surface_roughness_length
EARTH SCIENCE > Land Surface > Topography > Surface Roughness
ALBDO
Albedo
%
surface_albedo
EARTH SCIENCE > Land Surface > Surface Radiative Properties > Albedo
TSOIL
Soil temperature
K
soil_temperature
EARTH SCIENCE > Land Surface > Soils > Soil Temperature
SOILM
Soil moisture content
kg m^-2
soil_moisture_content
EARTH SCIENCE > Land Surface > Soils > Soil Moisture/Water Content
VEG
Vegetation
%
vegetation_area_fraction
EARTH SCIENCE > Biosphere > Vegetation > Vegetation Cover
SALTY
Salinity
kg kg^-1
sea_water_salinity
EARTH SCIENCE > Oceans > Salinity/Density > Salinity
DEN
Density
kg m^-3
ICE C
Ice concentration
fraction
sea_ice_area_fraction
EARTH SCIENCE > Oceans > Sea Ice > Ice Extent
ICETK
Ice thickness
m
sea_ice_thickness
EARTH SCIENCE > Oceans > Sea Ice > Ice Depth/Thickness
DICED
Direction of ice drift
deg
direction_of_sea_ice_velocity
EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Motion
SICED
Speed of ice drift
m s^-1
sea_ice_speed
EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Motion
U ICE
u-component of ice drift
m s^-1
eastward_sea_ice_velocity
EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Motion
V ICE
v-component of ice drift
m s^-1
northward_sea_ice_velocity
EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Motion
ICE G
Ice growth rate
m s^-1
tendency_of_sea_ice_thickness_due_to_thermodynamics
EARTH SCIENCE > Oceans > Sea Ice > Ice Growth/Melt
ICE D
Ice divergence
s^-1
divergence_of_sea_ice_velocity
EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Motion
HTSGW
Significant height of combined wind waves and swell
m
significant_height_of_wind_and_swell_waves
EARTH SCIENCE > Oceans > Ocean Waves > Significant Wave Height
WVDIR
Direction of wind waves
deg
direction_of_wind_wave_velocity
EARTH SCIENCE > Oceans > Ocean Waves > Wave Speed/Direction
WVHGT
Significant height of wind waves
m
significant_height_of_wind_waves
EARTH SCIENCE > Oceans > Ocean Waves > Significant Wave Height
WVPER
Mean period of wind waves
s
wind_wave_period
EARTH SCIENCE > Oceans > Ocean Waves > Wave Period
SWDIR
Direction of swell waves
deg
direction_of_swell_wave_velocity
EARTH SCIENCE > Oceans > Ocean Waves > Swells
SWELL
Significant height of swell waves
m
significant_height_of_swell_waves
EARTH SCIENCE > Oceans > Ocean Waves > Swells
SWPER
Mean period of swell waves
s
swell_wave_period
EARTH SCIENCE > Oceans > Ocean Waves > Swells
DIRPW
Primary wave direction
deg
EARTH SCIENCE > Oceans > Ocean Waves > Wave Speed/Direction
PERPW
Primary wave mean period
s
EARTH SCIENCE > Oceans > Ocean Waves > Wave Period
DIRSW
Secondary wave direction
deg
EARTH SCIENCE > Oceans > Ocean Waves > Wave Speed/Direction
PERSW
Secondary wave mean period
s
EARTH SCIENCE > Oceans > Ocean Waves > Wave Period
NSWRS
Net short-wave radiation flux (surface)
W m^-2
surface_net_upward_shortwave_flux
EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Incoming Solar Radiation
NLWRS
Net longwave radiation flux (surface)
W m^-2
surface_net_upward_longwave_flux
EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Outgoing Longwave Radiation
NSWRT
Net short-wave radiation flux (top of atmos.)
W m^-2
toa_net_upward_shortwave_flux
EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Incoming Solar Radiation
NLWRT
Net longwave radiation flux (top of atmos.)
W m^-2
toa_outgoing_longwave_flux
EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Outgoing Longwave Radiation
LWAVR
Long-wave radiation
W m^-2
net_upward_longwave_flux_in_air
EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Longwave Radiation
SWAVR
Short-wave radiation
W m^-2
net_upward_shortwave_flux_in_air
EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Shortwave Radiation
G RAD
Global radiation
W m^-2
surface_downwelling_shortwave_flux_in_air
LHTFL
Latent heat flux
W m^-2
surface_upward_latent_heat_flux
EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Heat Flux
SHTFL
Sensible heat flux
W m^-2
surface_upward_sensible_heat_flux
EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Heat Flux
BLYDP
Boundary layer dissipation
W m^-2
IMG D
Image data
MSLSA
Mean sea level pressure (Standard Atmosphere Reduction)
Pa
EARTH SCIENCE > Atmosphere > Atmospheric Pressure > Sea Level Pressure
MSLMA
Mean sea level pressure (MAPS System Reduction)
Pa
EARTH SCIENCE > Atmosphere > Atmospheric Pressure > Sea Level Pressure
MSLET
Mean sea level pressure (ETA Model Reduction)
Pa
EARTH SCIENCE > Atmosphere > Atmospheric Pressure > Sea Level Pressure
LFT X
Surface lifted index
K
4LFTX
Best (4 layer) lifted index
K
K X
K index
K
S X
Sweat index
K
MCONV
Horizontal moisture divergence
kg kg^-1 s^-1
VW SH
Vertical speed shear
s^-1
wind_speed_shear
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Wind Shear
Visibility
EARTH SCIENCE > Atmosphere > Air Quality > Visibility
SOILW
Volumetric soil moisture content
fraction
EARTH SCIENCE > Land Surface > Soils > Soil Moisture/Water Content
COVMZ
Covariance between meridional and zonal components of the wind. Defined as [uv]-[u][v], where [] indicates the mean over the indicated time span.
m^2 s^-2
COVTZ
Covariance between temperature and zonal components of the wind. Defined as [uT]-[u][T], where [] indicates the mean over the indicated time span.
K m s^-1
COVTM
Covariance between temperature and meridional components of the wind. Defined as [vT]-[v][T], where [] indicates the mean over the indicated time span.
K m s^-1
O3MR
Ozone mixing ratio
kg kg^-1
EARTH SCIENCE > Atmosphere > Air Quality > Tropospheric Ozone
CIN
Convective inhibition
J kg^-1
CAPE
Convective available potential energy
J kg^-1
TKE
Turbulent kinetic energy
J kg^-1
NLAT
Latitude (-90 to +90)
deg
ELON
East longitude (0-360)
deg
UMAS
Mass weighted u
VMAS
Mass weighted v
ICWAT
Ice-free water surface
%
DSWRF
Downward shortwave radiation flux
W m^-2
downward_shortwave_flux_in_air
EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Shortwave Radiation
DLWRF
Downward longwave radiation flux
W m^-2
downward_longwave_flux_in_air
EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Longwave Radiation
MSTAV
Moisture availability
%
SFEXC
Exchange coefficient
(kg m^-3)(m s^-1)
MIXLY
No. of mixed layers next to surface
USWRF
Upward shortwave radiation flux
W m^-2
upward_shortwave_flux_in_air
EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Shortwave Radiation
ULWRF
Upward longwave radiation flux
W m^-2
upward_longwave_flux_in_air
EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Longwave Radiation
CDLYR
Amount of non-convective cloud
%
EARTH SCIENCE > Atmosphere > Clouds > Cloud Amount/Frequency
TTRAD
Temperature tendency by all radiation
K s^-1
EARTH SCIENCE > Atmosphere > Atmospheric Temperature > Temperature Tendency
PREIX
precip.index(0.0-1.00)
fraction
NLGSP
Natural log of surface pressure
ln(kPa)
HPBL
Planetary boundary layer height
m
EARTH SCIENCE > Atmosphere > Altitude > Planetary Boundary Layer Height
5WAVH
5-wave geopotential height
gpm
EARTH SCIENCE > Atmosphere > Altitude > Geopotential Height
5WAVA
5-wave geopotential height anomaly
EARTH SCIENCE > Atmosphere > Altitude > Geopotential Height
climatologyMeteorologyAtmosphere