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ds090.1 Detailed MetadataGo to Dataset: 
 

Overview
Dataset Citation:
DOC/NOAA/NWS/NCEP, 1995: NCEP/NCAR Global Reanalysis 8-day Forecast Products, updated quarterly. Published by the CISL Data Support Section at the National Center for Atmospheric Research, Boulder, CO (ds090.1).
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
Programs/Experiments that collected the data:
  • NNRP > NCEP/NCAR Reanalysis Project
Total volume:  194.659 Gbytes

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
5-wave geopotential height anomaly
  • Ground or water surface
1948-01-01 03:00 to 2006-03-05 00:00
Absolute vorticity (s-1)
  • Isobaric surface: 1000 mbar
  • Isobaric surface: 925 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
  • Isobaric surface: 30 mbar
  • Isobaric surface: 20 mbar
  • Isobaric surface: 10 mbar
1948-01-01 15:00 to 2006-03-05 00:00
Albedo (%)
  • Ground or water surface
1948-01-01 15:00 to 2006-03-05 00:00
Best (4 layer) lifted index (K)
  • Ground or water surface
1948-01-01 15:00 to 2006-03-05 00:00
Cloud workfunction (J kg-1)
  • Entire atmosphere (considered as a single layer)
1948-01-01 15:00 to 2006-03-05 00:00
Convective cloud cover (%)
  • High cloud layer
  • Low cloud layer
  • Middle cloud layer
1948-01-01 03:00 to 2006-03-05 00:00
Convective precipitation rate (kg m-2 s-1)
  • Ground or water surface
1948-01-01 03:00 to 2006-03-05 00:00
Downward long wave radiation flux (W m-2)
  • Ground or water surface
1948-01-01 03:00 to 2006-03-05 00:00
Downward short wave radiation flux (W m-2)
  • Ground or water surface
1948-01-01 03:00 to 2006-03-05 00:00
Geopotential height (gpm)
  • Ground or water surface
  • Isobaric surface: 1000 mbar
  • Isobaric surface: 925 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
  • Isobaric surface: 30 mbar
  • Isobaric surface: 20 mbar
  • Isobaric surface: 10 mbar
1948-01-01 15:00 to 2006-03-05 00:00
Ground heat flux (W m-2)
  • Ground or water surface
1948-01-01 03:00 to 2006-03-05 00:00
Ice cover (fraction)
  • Ground or water surface
1948-01-01 15:00 to 2006-03-05 00:00
Land cover (fraction)
  • Ground or water surface
1948-01-01 15:00 to 2006-03-05 00:00
Latent heat flux (W m-2)
  • Ground or water surface
1948-01-01 03:00 to 2006-03-05 00:00
Maximum temperature (K)
  • Specified height above ground: 2 m
1948-01-01 15:00 to 2006-03-05 00:00
Meridional flux of gravity wave stress (N m-2)
  • Ground or water surface
1948-01-01 03:00 to 2006-03-05 00:00
Minimum temperature (K)
  • Specified height above ground: 2 m
1948-01-01 15:00 to 2006-03-05 00:00
Momentum flux, u-component (N m-2)
  • Ground or water surface
1948-01-01 03:00 to 2006-03-05 00:00
Momentum flux, v-component (N m-2)
  • Ground or water surface
1948-01-01 03:00 to 2006-03-05 00:00
Potential evaporation rate (W m-2)
  • Ground or water surface
1948-01-01 15:00 to 2006-03-05 00:00
Potential temperature (K)
  • Sigma level: 0.995
1948-01-01 15:00 to 2006-03-05 00:00
Precipitable water (kg m-2)
  • Entire atmosphere (considered as a single layer)
1948-01-01 15:00 to 2006-03-05 00:00
Precipitation rate (kg m-2 s-1)
  • Ground or water surface
1948-01-01 03:00 to 2006-03-05 00:00
Pressure (Pa)
  • Ground or water surface
  • High cloud bottom level
  • High cloud top level
  • Low cloud bottom level
  • Low cloud top level
  • Maximum wind level
  • Middle cloud bottom level
  • Middle cloud top level
  • Tropopause
1948-01-01 03:00 to 2006-03-05 00:00
Pressure reduced to MSL (Pa)
  • Mean sea level
1948-01-01 15:00 to 2006-03-05 00:00
Pressure tendency (Pa s-1)
  • Ground or water surface
1982-01-01 12:00 to 1994-01-04 00:00
Pressure vertical velocity (Pa s-1)
  • Isobaric surface: 1000 mbar
  • Isobaric surface: 925 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
  • Sigma level: 0.995
1948-01-01 15:00 to 2006-03-05 00:00
Relative humidity (%)
  • Entire atmosphere (considered as a single layer)
  • Isobaric surface: 1000 mbar
  • Isobaric surface: 925 mbar
  • Isobaric surface: 850 mbar
  • Isobaric surface: 700 mbar
  • Isobaric surface: 500 mbar
  • Isobaric surface: 400 mbar
  • Isobaric surface: 300 mbar
  • Layer between two levels at specified pressure differences from ground to level: Bottom=0 mbar, Top=30 mbar
  • Layer between two sigma levels: Bottom=0.72 , Top=0.44
  • Layer between two sigma levels: Bottom=0.94 , Top=0.72
  • Layer between two sigma levels: Bottom=1 , Top=0.44
  • Sigma level: 0.995
1948-01-01 15:00 to 2006-03-05 00:00
Sensible heat flux (W m-2)
  • Ground or water surface
1948-01-01 03:00 to 2006-03-05 00:00
Snow phase-change heat flux (W m-2)
  • Ground or water surface
1948-01-01 03:00 to 2006-03-05 00:00
Snowfall rate water equivalent (kg m-2 s-1)
  • Ground or water surface
1948-01-01 03:00 to 2006-03-05 00:00
Specific humidity (kg kg-1)
  • Specified height above ground: 2 m
1948-01-01 15:00 to 2006-03-05 00:00
Surface lifted index (K)
  • Ground or water surface
1948-01-01 15:00 to 2006-03-05 00:00
Temperature (K)
  • Ground or water surface
  • High cloud top level
  • Isobaric surface: 1000 mbar
  • Isobaric surface: 925 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
  • Isobaric surface: 30 mbar
  • Isobaric surface: 20 mbar
  • Isobaric surface: 10 mbar
  • Layer between two levels at specified pressure differences from ground to level: Bottom=0 mbar, Top=30 mbar
  • Low cloud top level
  • Maximum wind level
  • Middle cloud top level
  • Sigma level: 0.995
  • Specified height above ground: 2 m
  • Tropopause
1948-01-01 03:00 to 2006-03-05 00:00
Total cloud cover (%)
  • High cloud layer
  • Low cloud layer
  • Middle cloud layer
1948-01-01 03:00 to 2006-03-05 00:00
u-component of wind (m s-1)
  • Isobaric surface: 1000 mbar
  • Isobaric surface: 925 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
  • Isobaric surface: 30 mbar
  • Isobaric surface: 20 mbar
  • Isobaric surface: 10 mbar
  • Layer between two levels at specified pressure differences from ground to level: Bottom=0 mbar, Top=30 mbar
  • Maximum wind level
  • Sigma level: 0.995
  • Specified altitude above mean sea level: 1829 m
  • Specified altitude above mean sea level: 2743 m
  • Specified altitude above mean sea level: 3658 m
  • Specified height above ground: 10 m
  • Tropopause
1948-01-01 15:00 to 2006-03-05 00:00
Upward long wave radiation flux (W m-2)
  • Ground or water surface
  • Nominal top of atmosphere
1948-01-01 03:00 to 2006-03-05 00:00
Upward short wave radiation flux (W m-2)
  • Ground or water surface
  • Nominal top of atmosphere
1948-01-01 03:00 to 2006-03-05 00:00
v-component of wind (m s-1)
  • Isobaric surface: 1000 mbar
  • Isobaric surface: 925 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
  • Isobaric surface: 30 mbar
  • Isobaric surface: 20 mbar
  • Isobaric surface: 10 mbar
  • Layer between two levels at specified pressure differences from ground to level: Bottom=0 mbar, Top=30 mbar
  • Maximum wind level
  • Sigma level: 0.995
  • Specified altitude above mean sea level: 1829 m
  • Specified altitude above mean sea level: 2743 m
  • Specified altitude above mean sea level: 3658 m
  • Specified height above ground: 10 m
  • Tropopause
1948-01-01 15:00 to 2006-03-05 00:00
Vegetation type (as in SiB)
  • High cloud layer
  • Low cloud layer
  • Middle cloud layer
1948-01-01 03:00 to 2006-03-05 00:00
Vertical speed shear (s-1)
  • Tropopause
1948-01-01 15:00 to 2006-03-05 00:00
Volumetric soil moisture content (fraction)
  • Layer between two depths below land surface: Bottom=200 cm, Top=10 cm
1948-01-01 15:00 to 2006-03-05 00:00
Water equivalent of accumulated snow depth (kg m-2)
  • Ground or water surface
1948-01-01 15:00 to 2006-03-05 00:00
Water run-off (kg m-2)
  • Ground or water surface
1948-01-01 15:00 to 2006-03-05 00:00
Zonal flux of gravity wave stress (N m-2)
  • Ground or water surface
1948-01-01 03:00 to 2006-03-05 00:00

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