NCEP Initialized Data from 2.5 degree grid - 2 times daily

SOURCE: Data Support Section Dataset ds082.0 2.5 degree grid

NOTES: Missing data are replaced with ECMWF WCRP data.

UPDATED THROUGH: Dec 1994

FORMAT: CCM2 History Tape

GRID: Global - T42 Gaussian (128 x 64)

LEVELS: (Pressure - mb) 1000,850,700,500,400,300,250,200,150,100,70,50

TIMES: 2 times daily: 00Z, 12Z

CURRENT HOLDINGS: Jan 1987 - Dec 1994

FIELDS:

Description Name Units Levels
Zonal Wind Component U m s-1 all
Meridional Wind Component V m s-1 all
Geopotential Height ZA m all
Temperature T K all
Relative Humidity RH % all
Specific Humidity Q kg kg-1 all
Surface Pressure PS Pa surface
Surface Geopotential PHIS m2 s-2 surface
Orography (surface type flag) ORO

o=ocean

1=land

2=sea ice

 

MSS Directory: /TRENBERT/CTNMC/

Filename: NT42yymmX where yy=year, mm=month, X=A for the first 15 days of the month or
X=B for the remainder of the month. 15 days (30 time steps) per volume (though not always for end of month).

e.g. NT428701B contains data for 87,01,16,00Z through 87,01,31,12Z.


Missing Days and Comments on Data Quality

Please use the ccm2nc software to convert ccm history tape format to netCDF.

References