MSU Monthly Means

Microwave Sounding Unit (MSU) Monthly Means

A climatology for each month has been established based on the 10-year period of 1982-1991. A limited number of retrievals during November 1979 and March, April, and August 1981 affected the data and are the reason for the 10-year mean. Monthly anomalies have been formed by subtracting the 10-year mean from the monthly brightness temperatures. The missing data appear to have had a small impact on tropical and summer hemisphere anomalies, but caution should be used when examining the winter hemisphere anomalies during the months of missing retrievals.

SOURCE: Data Support Section Dataset ds701.0

FORMAT: CCM1 History Tape and netCDF

GRID: Global - T42 Gaussian (128 x 64) and 2.5 degree (144 x 72)

LEVELS: Single Level

FIELDS: Description     	                Name     Units   
     ---------------------------------------------------------
     Temperatures:
	Channel 2 Temperature                   CH2T      K  
	Channel 2R Temperature                  CH2R      K
	Channel 4 Temperature                   CH4T      K  
     Anomalies (relative to the 1982-1991 annual cycle):
	Channel 2 Anomalies                     CH2TANOM  K
	Channel 2R Anomalies                    CH2RANOM  K
	Channel 4 Anomalies                     CH4TANOM  K  


TIMES:  One mean per month.

MSS Directory: /CTSAT/MSU/T42/CCM1H/     (T42 grid)
	       /CTSAT/MSU/2.5DG/CCM1H/   (2.5 degree grid)

Filename: 7992X  where X=T for temperatures, X=A for anomalies
        168 or more time steps (months) per file.
        e.g. 7992A contains anomalies for 1979 - 1992.
        The ".nc" suffix indicates a netCDF file.

Current holdings: January 1979 - 1994 (final month varies):
/CTSAT/MSU/T42/CCM1H/7991A
/CTSAT/MSU/T42/CCM1H/7991T
/CTSAT/MSU/T42/CCM1H/7992A
/CTSAT/MSU/T42/CCM1H/7992T
/CTSAT/MSU/T42/CCM1H/7993A
/CTSAT/MSU/T42/CCM1H/7993T
/CTSAT/MSU/T42/CCM1H/7994A
/CTSAT/MSU/T42/CCM1H/7994T
/CTSAT/MSU/T42/CCM1H/7994A.nc
/CTSAT/MSU/T42/CCM1H/7994T.nc


/CTSAT/MSU/2.5DG/CCM1H/7991A
/CTSAT/MSU/2.5DG/CCM1H/7991T
/CTSAT/MSU/2.5DG/CCM1H/7992A
/CTSAT/MSU/2.5DG/CCM1H/7992T
/CTSAT/MSU/2.5DG/CCM1H/7993A
/CTSAT/MSU/2.5DG/CCM1H/7993T
/CTSAT/MSU/2.5DG/CCM1H/7994A
/CTSAT/MSU/2.5DG/CCM1H/7994T.nc
/CTSAT/MSU/2.5DG/CCM1H/7994A.nc


These files contain some missing values (1e+36).

Other Products Derived from this Dataset:

Long-Term Means (Climatologies)

Comments on Data
Please use the ccm2nc software to convert ccm history tape format to netCDF.
References

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