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This data product is currently a work in progress. When operational the data product will be a quasi-continuous time series of atmospheric N2O and SF6measured at Weybourne Atmospheric Observatory, UK. The instrument used for the development of this technique and the future atmospheric concentrations is a modified commercial Gas Chromatograph equipped with a Electron Capture Detector (ECD). A sample will be analysed every ten minutes and reported with reference to the NOAA2006 calibration scales for both N2O and SF6.

Data files containing the N2O and SF6 data are submitted on a monthly basis to BADC using the NASA AMES variable naming convention.