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    Long-term Continuous Monitoring of Methane Emissions at an Oil and Gas Facility using a Multi-open-path Laser Dispersion Spectrometer
    (2023-12-01) Weidmann, Damien
    A method for methane emissions monitoring at industrial facility level was developed based on a high precision multi-open-path laser dispersion spectrometer. This dataset contains the methane path-averaged concentrations spatially distributed over the facility under study, together with local meteorology data. The dataset contains 3 months of continuous (24h/7d) measurements at an operational gas processing and distribution facility. Files are in the NetCDF format. Each files contains the same 8 variables: - TIME_STAMP_DAYS - The time stamp for each measurement expressed in Julian Days. - CH4_CONC_PPM - The path averaged methane concentration in ppm. - CH4_CONC_ERROR_PPM - The measurement random error on the path integrated methane concentration in ppm. - PRESS - The local atmospheric pressure in Torr. - TEMP - The local atmospheric temperature in K. - WIND_DIR_DEG - The local wind direction in degrees from true North. - WIND_MAG_M_S - The local wind velocity magnitude in m/s. - RETRO_ID - ID integer identifying the retro-reflector used for a particular open-path.