The data files contained in this NDP can be read with the FORTRAN 77 or SAS ® data retrieval programs provided. To verify that the data have been correctly transported to their systems, users should generate some or all of the statistics presented in Tables 2 and 3. These tables present simple summary statistics for the files that contain data for all sites (i.e., files all.co2 and allmm.co2). If the statistics generated by the user differ from those presented here, the data files may have been corrupted in transport.
These statistics are presented only as a tool to ensure proper reading of the data files. They are not to be construed as a summary of the data set.
Table 2. Characteristics of numeric variables in the file containing all CO2 measurements from individual flask air samples
Number of Standard Minimum Maximum Variable observations Mean deviation value valueTable 3. Characteristics of numeric variables in the file containing all monthly CO2 measurements from the NOAA/CMDL global flask sampling network
YYYY 59237 1985.95 5.0554437 1967 1993 MM 59237 6.6129784 3.4087795 1 12 DD 59237 15.7100967 8.7681133 1 31 HR 59237 13.9755727 9.7567204 0 99 MIN 59237 25.6106319 18.2319032 0 99 CO2 59237 325.3679989 174.1507799 -999.99 677.61 SAMYY 59237 1986.10 5.0537625 1967 1994 SAMMM 59237 6.4441987 3.4435111 1 12 SAMDD 59237 15.6599085 8.6035267 1 31
Number of Standard Minimum Maximum Variable observations Mean deviation value value
YYYY 4824 1985.55 5.8742749 1968 1993 MM 4824 6.5789801 3.4462764 1 12 CO2 4824 280.3019693 293.1109038 -999.99 369.30
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