Methane and carbon dioxide mole fractions are measured using a Picarro G1301 cavity ringdown spectroscopy analyser. The instrument is located in the greenhouse gas laboratory at Royal Holloway University of London. Air samples that have been collected in a flasks or bags are analysed. Mole fraction measurements are provided on the WMO (NOAA) X2004A calibration scale for methane and X2007 scale for carbon dioxide.
|keywords:||methane (ppm), carbon dioxide (ppm)|
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No related previous identifiers.