Atmospheric Methane Baseline Data for Fugitive Emission Detection

Continuous atmospheric methane and carbon dioxide measurements collected over three years at the 'Arcturus' monitoring station in Australia's Bowen Basin. Geoscience Australia and CSIRO Marine & Atmospheric Research gathered this data to establish a baseline for detecting fugitive emissions from coal seam gas fields. The dataset supports a 2013 study simulating emissions and analyzing detection sensitivity.

Use Cases

• Model detection sensitivity of fugitive methane emissions by comparing simulated perturbed signals against the three-year baseline methane time series.
• Analyze seasonal or temporal patterns in baseline methane and carbon dioxide concentrations to distinguish natural from industrial sources.
• Evaluate statistical likelihood and false alarm rates for emission detection using time series models generated from the baseline methane data.
• Simulate fugitive emission plumes from CSG fields based on parameters like well density, production volume, and field size typical of Australian operations.

Strengths

• Three years of continuous atmospheric methane and carbon dioxide measurements provide a long-term baseline.
• Emissions simulation covers a range of realistic fugitive emission rates from less than 1% to up to 10% of production.

Limitations

• The dataset's core analysis and findings are from a 2013 study, which may not reflect current emission profiles or monitoring technology.
• Specific sample size, row count, and column details for the underlying measurement data are not provided.

Provenance

Source

Geoscience Australia and CSIRO Marine & Atmospheric Research via the Australian Ocean Data Network.

Collection Method

Continuous atmospheric composition monitoring at the 'Arcturus' station, coupled with emissions simulations using the TAPM meteorological and air pollution model.

Time Range

Three years of baseline measurements (specific dates not provided), with simulations for a 1-year period.

Freshness

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Geography

Bowen Basin, Australia, with simulated emissions analyzed from distances of 10 to 50 km from the monitoring station.