Source:  ECMWF
Creation date:  2006
Model Output:  Grid point (converted from spectral at ECMWF).
               Surface, isentropic, and model level fields at full
               resolution; surface and pressure level fields at
               low resolution.
Range of data:  May 1, 2005 12Z to May 31, 2006 21Z
Data Format:  GRIB (all data), flat binary (low resolution data only)
Size of dataset:  2.5TB (full resolution)
                  0.5TB (low resolution)
Full resolution:  1024 longitude points (~.35 deg)
                  512 latitude points  (N256 Gaussian, ~.35 deg)
                  91 pressure levels
                  3 hour interval
Low resolution:   360 longitude points (1.0 deg)
                  181 latitude points  (1.0 deg)
                  32 pressure levels
                  3 hour interval

Pressure levels:
 1000 975 950 925 900 850 800 775 750 700 650 600 550 500
 450 400 350 300 250 200 150100 70 50 30 20 10 7 5 3 2 1

Quantities:
  Surface
    Mean sea level pressure (PA)
    2m Temperature (K)
    Surface skin temperature (K)
    2m Dew point temperature (K)
    10m U Wind (m/s)
    10m V Wind (m/s)
    Large scale precipitation (m)
    Convective precipitation (m)
    Snow depth (m)
    Total cloud fraction (0-1)
    Low cloud fraction (0-1)
    Medium cloud fraction (0-1)
    High cloud fraction (0-1)
  Upper Air
    Vertical velocity (PA/s)
    Cloud fraction (0-1)
    Cloud liquid water content (kg/kg)
    Cloud ice water content (kg/kg)
    Divergence (1/s)
    Ozone (kg/kg)
    Specific humidity (kg/kg)
    Relative humidity (%)
    Temperature (K)
    U Wind (m/s)
    V Wind (m/s)
    Relative vorticity (1/s)
    Vertical velocity (PA/s)
    Geopotential height (m)