Composites of the vertical changes in greenhouse gas mole fraction. The vertical change is the difference between afternoon a) CO2, b) CH4, and c) CO measured at each level and that of the top level. Site 01 is shown as a dotted blue line, Site 02 as a green dashed line, and Site 03 as a solid red line. Shown profiles are using data from two months during the dormant season (1 November – 31 December 2013), as profiles from Sites 01 and 02 were not available for the period 1 January – 2 April 2013. The instrument at Site 03 does not measure CH4. Here afternoon is defined as 1500–1600 LST. Bars indicate the compatibility of the mole fraction measurements (not visible for CO2 and CH4). DOI: https://doi.org/10.1525/elementa.127.f14