Atmospheric Methane Data for the Period 1986-1988 from the NOAA/CMDL GlobalCooperative Flask Sampling Network

摘要

The memorandum builds on previous work (Lang et al., 1987) to extend by threeyears the record of atmospheric methane measurements made through the NOAA/CMDL cooperative flask sampling network. The format of the data presentations given here follows very closely that used by Lang et al. (1990). Details of the flask sampling methods and the analytical and calibration procedures are given. Results from individual flask samples are both tabulated and plotted. Monthly average methane concentrations at each site are also tabulated.