Aircraft and tall tower measurements of propane, n-butane, n-pentane and i- pentane in the study of “Little evidence for significant increases in total U.S. CH 4 emissions over the past decade”

This database contains aircraft and tower measured mole fractions of propane (C 3 H 8 ), n-butane (n-C 4 H 10 ), n-pentane (n-C 5 H 12 ) and i-pentane (i-C 5 H 12 ) used in the study of “Little evidence for significant increases in total U.S. CH 4 emissions over the past decade”. Study period is 2008 -2015 for these hydrocarbon species.