Data are available for four atmospheric trace gases at nine stationary
sites and one moving platform (aircraft over Cape Grim, Tasmania, and
Bass Strait, between the Australian continent and Tasmania). ...
Measurements have been made on air collected in flasks at the CSIRO
GASLAB worldwide network. Flasks are filled with air at each site and
returned to the CSIRO GASLAB for analysis. For stable isotope ...
[From the online documentation for CSIRO GASLAB CO data]:
Individual measurements have been obtained from flask air samples
returned to the CSIRO GASLAB. Typical sample storage times range from