Table 3. Characteristics of Numeric Variables in the Collective Surface Water and Atmospheric CO2 and N2O Data Files

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Variable              Number of                 Mean            Minimum                 Maximum
                     observations                                value                   value
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DATEDA                  101920                  14.991            1.000                   31.000
DATEYR                  101920                  83.469           77.000                   90.000
TIME                    101920                1176.071            0.000                 2359.000
LAT                     101920                  02.444          -77.177                   79.005
LON                     101920                 -36.570         -179.998                  179.998
PRESS                   101920                 843.456         -999.900                 1035.400
H2OTMP                  101920                  18.075           -2.130                   99.990
XN2O                    101920                 279.027          -99.900                  725.600
XCO2                    101920                 291.289          -99.900                  737.900
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