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ds082.0 Detailed MetadataGo to Dataset: 
 

Overview
Dataset Citation:
DOC/NOAA/NWS/NCEP, 1980: NCEP Global Tropospheric Analyses, daily 1976Jul-1997Apr12. Published by the CISL Data Support Section at the National Center for Atmospheric Research, Boulder, CO (ds082.0).
Types of data:
  • Grids
Data formats:
Data providers:
  • DOC/NOAA/NWS/NCEP > National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce
Total volume:  38.360 Gbytes

Go to NCEP ON84 Summary
Summary for Grids in WMO GRIB1 Format
Product and Coverage Information:
There are multiple products and/or geographical coverages for the grids in this format. Click a variable name to see the available products and coverages for that variable.
VariableVertical LevelsTemporal Valid Range
Absolute vorticity (s-1)
  • Isobaric surface: 500 mbar
1995-07-01 00:00 to 1996-08-31 12:00
Geopotential height (gpm)
  • Isobaric surface: 1000 mbar
  • Isobaric surface: 850 mbar
  • Isobaric surface: 700 mbar
  • Isobaric surface: 500 mbar
  • Isobaric surface: 400 mbar
  • Isobaric surface: 300 mbar
  • Isobaric surface: 250 mbar
  • Isobaric surface: 200 mbar
  • Isobaric surface: 150 mbar
  • Isobaric surface: 100 mbar
  • Isobaric surface: 70 mbar
  • Isobaric surface: 50 mbar
1976-07-01 00:00 to 1997-03-31 12:00
Potential temperature (K)
  • Entire atmosphere (considered as a single layer)
  • Sigma level: 0.995
1980-05-23 00:00 to 1997-03-31 12:00
Precipitable water (kg m-2)
  • Entire atmosphere (considered as a single layer)
  • Layer between two sigma levels: Bottom=1 , Top=0.33
1980-05-23 00:00 to 1997-03-31 12:00
Pressure (Pa)
  • Ground or water surface
  • Sigma level
  • Tropopause
1976-07-01 00:00 to 1997-03-31 12:00
Pressure reduced to MSL (Pa)
  • Mean sea level
1977-12-07 12:00 to 1997-03-31 12:00
Relative humidity (%)
  • Entire atmosphere (considered as a single layer)
  • Isobaric surface: 1000 mbar
  • Isobaric surface: 850 mbar
  • Isobaric surface: 700 mbar
  • Isobaric surface: 500 mbar
  • Isobaric surface: 400 mbar
  • Isobaric surface: 300 mbar
  • Layer between two sigma levels: Bottom=0.67 , Top=0.33
  • Layer between two sigma levels: Bottom=1 , Top=0.67
  • Layer between two sigma levels: Bottom=1 , Top=0.33
  • Sigma level: 0.995
1976-07-01 00:00 to 1997-03-31 12:00
Snow depth (m)
  • Ground or water surface
1979-07-25 12:00 to 1997-03-29 12:00
Temperature (K)
  • Ground or water surface
  • Isobaric surface: 1000 mbar
  • Isobaric surface: 850 mbar
  • Isobaric surface: 700 mbar
  • Isobaric surface: 500 mbar
  • Isobaric surface: 400 mbar
  • Isobaric surface: 300 mbar
  • Isobaric surface: 250 mbar
  • Isobaric surface: 200 mbar
  • Isobaric surface: 150 mbar
  • Isobaric surface: 100 mbar
  • Isobaric surface: 70 mbar
  • Isobaric surface: 50 mbar
  • Sigma level
  • Specified height above ground: 2 m
  • Tropopause
1976-07-01 00:00 to 1997-03-31 12:00
u-component of wind (m s-1)
  • Entire atmosphere (considered as a single layer)
  • Isobaric surface: 1000 mbar
  • Isobaric surface: 850 mbar
  • Isobaric surface: 700 mbar
  • Isobaric surface: 500 mbar
  • Isobaric surface: 400 mbar
  • Isobaric surface: 300 mbar
  • Isobaric surface: 250 mbar
  • Isobaric surface: 200 mbar
  • Isobaric surface: 150 mbar
  • Isobaric surface: 100 mbar
  • Isobaric surface: 70 mbar
  • Isobaric surface: 50 mbar
  • Sigma level: 0.995
1976-07-01 00:00 to 1997-03-31 12:00
v-component of wind (m s-1)
  • Entire atmosphere (considered as a single layer)
  • Isobaric surface: 1000 mbar
  • Isobaric surface: 850 mbar
  • Isobaric surface: 700 mbar
  • Isobaric surface: 500 mbar
  • Isobaric surface: 400 mbar
  • Isobaric surface: 300 mbar
  • Isobaric surface: 250 mbar
  • Isobaric surface: 200 mbar
  • Isobaric surface: 150 mbar
  • Isobaric surface: 100 mbar
  • Isobaric surface: 70 mbar
  • Isobaric surface: 50 mbar
  • Sigma level: 0.995
1976-07-01 00:00 to 1997-03-31 12:00
Vertical velocity (Pa s-1)
  • Isobaric surface: 1000 mbar
  • Isobaric surface: 850 mbar
  • Isobaric surface: 700 mbar
  • Isobaric surface: 500 mbar
  • Isobaric surface: 400 mbar
  • Isobaric surface: 300 mbar
  • Isobaric surface: 250 mbar
  • Isobaric surface: 200 mbar
  • Isobaric surface: 150 mbar
  • Isobaric surface: 100 mbar
1995-07-01 00:00 to 1996-08-31 12:00

Go to WMO GRIB1 Summary
Summary for Grids in NCEP ON84 Format
Product and Coverage Information:
There are multiple products and/or geographical coverages for the grids in this format. Click a variable name to see the available products and coverages for that variable.
VariableVertical LevelsTemporal Valid Range
Absolute vorticity (s-1)
  • Atmospheric pressure: 500 mbar
1995-07-01 00:00 to 1996-08-31 12:00
Atmospheric pressure (mbar)
  • Earth's surface (base of atmosphere)
  • Mean sea level
  • Tropopause
  • Troposphere: Bottom=0 , Top=1
1976-07-01 00:00 to 1997-04-12 12:00
Atmospheric temperature (deg K)
  • Atmospheric pressure: 1000 mbar
  • Atmospheric pressure: 850 mbar
  • Atmospheric pressure: 700 mbar
  • Atmospheric pressure: 500 mbar
  • Atmospheric pressure: 400 mbar
  • Atmospheric pressure: 300 mbar
  • Atmospheric pressure: 250 mbar
  • Atmospheric pressure: 200 mbar
  • Atmospheric pressure: 150 mbar
  • Atmospheric pressure: 100 mbar
  • Atmospheric pressure: 70 mbar
  • Atmospheric pressure: 50 mbar
  • Earth's surface (base of atmosphere)
  • Tropopause
  • Troposphere: Bottom=0 , Top=1
1976-07-01 00:00 to 1997-04-12 12:00
Geopotential height (gpm)
  • Atmospheric pressure: 1000 mbar
  • Atmospheric pressure: 850 mbar
  • Atmospheric pressure: 700 mbar
  • Atmospheric pressure: 500 mbar
  • Atmospheric pressure: 400 mbar
  • Atmospheric pressure: 300 mbar
  • Atmospheric pressure: 250 mbar
  • Atmospheric pressure: 200 mbar
  • Atmospheric pressure: 150 mbar
  • Atmospheric pressure: 100 mbar
  • Atmospheric pressure: 70 mbar
  • Atmospheric pressure: 50 mbar
1976-07-01 00:00 to 1997-04-12 12:00
Potential temperature (deg K)
  • Boundary: Bottom=1 , Top=0
  • Entire atmosphere: Bottom=1 , Top=0.925
1980-05-23 00:00 to 1997-04-12 12:00
Precipitable water (kg m-2)
  • Entire atmosphere: Bottom=1 , Top=0.375
  • Troposphere: Bottom=1 , Top=0.33333
1980-05-23 00:00 to 1997-04-12 12:00
Relative humidity (%)
  • Atmospheric pressure: 1000 mbar
  • Atmospheric pressure: 850 mbar
  • Atmospheric pressure: 700 mbar
  • Atmospheric pressure: 500 mbar
  • Atmospheric pressure: 400 mbar
  • Atmospheric pressure: 300 mbar
  • Boundary: Bottom=1 , Top=0
  • Entire atmosphere: Bottom=0.65 , Top=0.375
  • Entire atmosphere: Bottom=0.925 , Top=0.65
  • Entire atmosphere: Bottom=1 , Top=0.925
  • Entire atmosphere: Bottom=1 , Top=0.375
  • Troposphere: Bottom=0.66667 , Top=0.33333
  • Troposphere: Bottom=1 , Top=0.33333
  • Troposphere: Bottom=1 , Top=0.66667
1976-07-01 00:00 to 1997-04-12 12:00
Snow depth (m)
  • Earth's surface (base of atmosphere)
1979-07-25 12:00 to 1997-04-10 00:00
U comp. of wind wrt grid (m s-1)
  • Atmospheric pressure: 1000 mbar
  • Atmospheric pressure: 850 mbar
  • Atmospheric pressure: 700 mbar
  • Atmospheric pressure: 500 mbar
  • Atmospheric pressure: 400 mbar
  • Atmospheric pressure: 300 mbar
  • Atmospheric pressure: 250 mbar
  • Atmospheric pressure: 200 mbar
  • Atmospheric pressure: 150 mbar
  • Atmospheric pressure: 100 mbar
  • Atmospheric pressure: 70 mbar
  • Atmospheric pressure: 50 mbar
  • Boundary: Bottom=1 , Top=0
  • Entire atmosphere: Bottom=1 , Top=0.925
1976-07-01 00:00 to 1997-04-12 12:00
V comp. of wind wrt grid (m s-1)
  • Atmospheric pressure: 1000 mbar
  • Atmospheric pressure: 850 mbar
  • Atmospheric pressure: 700 mbar
  • Atmospheric pressure: 500 mbar
  • Atmospheric pressure: 400 mbar
  • Atmospheric pressure: 300 mbar
  • Atmospheric pressure: 250 mbar
  • Atmospheric pressure: 200 mbar
  • Atmospheric pressure: 150 mbar
  • Atmospheric pressure: 100 mbar
  • Atmospheric pressure: 70 mbar
  • Atmospheric pressure: 50 mbar
  • Boundary: Bottom=1 , Top=0
  • Entire atmosphere: Bottom=1 , Top=0.925
1976-07-01 00:00 to 1997-04-12 12:00
Vertical velocity dp/dt (mbar s-1)
  • Atmospheric pressure: 1000 mbar
  • Atmospheric pressure: 850 mbar
  • Atmospheric pressure: 700 mbar
  • Atmospheric pressure: 500 mbar
  • Atmospheric pressure: 400 mbar
  • Atmospheric pressure: 300 mbar
  • Atmospheric pressure: 250 mbar
  • Atmospheric pressure: 200 mbar
  • Atmospheric pressure: 150 mbar
  • Atmospheric pressure: 100 mbar
1995-07-01 00:00 to 1996-08-31 12:00
Water temperature (deg K)
  • Earth's surface (base of atmosphere)
1979-05-16 12:00 to 1997-04-12 00:00

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