Nimbus-7 Cloud Matrix (CMATRIX) Monthly Means
No attempt has been made to place these data on a T42 Gaussian grid because of their coarse resolution.
SOURCE:
FORMAT: CCM1 History Tape and netCDF
GRID: Global - 4.5 degree
LEVELS: Single Level
FIELDS: Description Name Units
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Total percent cloudiness A TOTCLDUP %
Mean time SIGMA of total cloudiness A STOTCLUP %
Percent low cloudiness A LOWCLDUP %
Mean time SIGMA of low cloudiness A SLOWCUP %
Percent mid cloudiness A MIDCLDUP %
Mean time SIGMA of mid cloudiness A SMIDCUP %
Percent high cloudiness A HICLDUP %
Mean time SIGMA of high cloudiness A SHICUP %
Total percent cloudiness A IR only TOTCIRUP %
Mean time SIGMA of total cloudiness A IR only STOTCIRU %
Radiance for total cloud A RADCLDUP W/m^2*str
Mean time SIGMA of radiance for total cloud A SRADCLUP W/m-2*str
Radiance for low cloud A RADLOWUP W/m^2*str
Mean time SIGMA of radiance for low cloud A SRADLWUP W/m^2*str
Radiance for mid cloud A RADMIDUP W/m^2*str
Mean time SIGMA of radiance for mid cloud A SRADMDUP W/m^2*str
Radiance for high cloud A RADHIUP W/m^2*str
Mean time SIGMA of radiance for high cloud A SRADHIUP W/m^2*str
Radiance for clear sky A RADCLRUP W/m^2*str
Mean time SIGMA of radiance for clear sky A SRADCLRU W/m^2*str
Percent high cirrus detected HICIRRUS %
Total percent cloudiness D TOTCLDDN %
Mean time SIGMA of total cloudiness D STOTCLDN %
Percent low cloudiness D LOWCLDDN %
Mean time SIGMA of low cloudiness D SLOWCDN %
Percent mid cloudiness D MIDCLDDN %
Mean time SIGMA of mid cloudiness D SMIDCDN %
Percent high cloudiness D HICLDDN %
Mean time SIGMA of high cloudiness D SHICDN %
Radiance for total cloud D RADCLDDN W/m^2*str
Mean time SIGMA of radiance for total cloud D SRADCLDN W/m^2*str
Radiance for low cloud D RADLOWDN W/m^2*str
Mean time SIGMA of radiance for low cloud D SRADLWDN W/m^2*str
Radiance for mid cloud D RADMIDDN W/m^2*str
Mean time SIGMA of radiance for mid cloud D SRADMDDN W/m^2*str
Radiance for high cloud D RADHIDN W/m^2*str
Mean time SIGMA of radiance for high cloud D SRADHIDN W/m^2*str
Radiance for clear sky D RADCLRDN W/m^2*str
Mean time SIGMA of radiance for clear sky D RADCLRD W/m^2*str
Total percent cloudiness Avg of A and D TOTCLD %
Total percent cloudiness A-D DIFTOTCL %
Percent low cloudiness Avg of A and D LOWCLD %
Percent low cloudiness A-D DIFLOWCL %
Percent mid cloudiness Avg of A and D MIDCLD %
Percent mid cloudiness A-D DIFMIDCL %
Percent high cloudiness Avg of A and D HICLD %
Percent high cloudiness A-D DIFHICLD %
Radiance for total cloud Avg of A and D RADCLD W/m^2*str
Radiance for total cloud A-D DIFRADCL W/m^2*str
Radiance for low cloud Avg of A and D RADLOW W/m^2*str
Radiance for low cloud A-D DIFRADLW W/m^2*str
Radiance for mid cloud Avg of A and D RADMID W/m^2*str
Radiance for mid cloud A-D DIFRADMD W/m^2*str
Radiance for high cloud Avg of A and D RADHI W/m^2*str
Radiance for high cloud A-D DIFRADHI W/m^2*str
Radiance for clear sky Avg of A and D RADCLR W/m^2*str
Radiance for clear sky A-D DIFRDCLR W/m^2*str
Air Force surface temperature A SURTEMPU K
Air Force surface temperature D SURTEMPD K
Definitions:
A ascending (near local-noon) observations
D descending (near local-midnight) observations
SIGMA standard deviation
The radiances listed are in units of 0.125 W/m^2*str.
TIMES: One mean per month.
MSS Directory: /CTSAT/N7CMAT/4.5DG/CCM1H/
Filenames: yymm where yy=year, mm=month
One month per file.
e.g. 7904 contains the means for April 1979.
The ".nc" suffix indicates netCDF format,
e.g. 7904.nc contains the means for April 1979.
Current holdings: April 1979 - March 1985
Other Products Derived from this Dataset:
Comments on Data
Please use the ccm2nc software to convert ccm history tape format to netCDF.
References
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