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Near-surface detection of CO2 leakage using eddy covariance techniques at the Ginninderra CO2 controlled release facility

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Created 14/01/2025

Updated 14/01/2025

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Geoscience Australia and the CO2CRC have constructed a greenhouse gas controlled release facility at an experimental agricultural station maintained by CSIRO Plant Industry at Ginninderra, Canberra. The facility is designed to simulate surface emissions of CO2 from the soil into the atmosphere and is modelled on the ZERT controlled release facility in Montana. Injection of CO2 into the soil is via a 120 m long slotted HDPE pipe installed horizontally 2 m underground. An eddy covariance (EC) system was installed at Ginninderra during the first sub-surface release (March - June 2012). The EC system, which generated 15 minute averages using a 10 Hz sampling frequency, measured net radiation (as a function of upwelling and downwelling, solar and longwave radiation); wind speed and direction in 3 dimensions; CO2 and H2O concentration; and temperature and pressure. The EC system was installed to provide baseline atmospheric measurements and assess methods for quantifying CO2 leakages. The daily CO2 release rate was 100 kg/d. Here we report on the application of the CO2 emissions quantification method developed by Pan et al. (2010) for detecting and quantifying CO2 leakages using EC techniques. The approach seeks to isolate the CO2 leakage signal from the natural variation inherent in flux data, using a time-window splitting scheme, median filtering and scaling techniques. Results from application of the EC method at the Ginninderra site will be presented and modifications to the method and its limitations discussed. Pan, L.; Lewicki, J.L.; Oldenburg C.M.; and Fischer M.L., (2010). Time-window based filtering method for near-surface detection of leakage from geological carbon sequestration sites, Environmental Earth Sciences, 60, pp 359-369. Proceedings of the 2013 International Carbon Dioxide Conference - Beijing China

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Title Near-surface detection of CO2 leakage using eddy covariance techniques at the Ginninderra CO2 controlled release facility
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/83cddbf8-8c0e-4e25-8e98-e3c275b2665d
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 11/04/2018
Geospatial Coverage {"type": "Polygon", "coordinates": [[[149.0, -35.5], [149.5, -35.5], [149.5, -35.0], [149.0, -35.0], [149.0, -35.5]]]}
Data Portal data.gov.au

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This dataset was originally found on data.gov.au "Near-surface detection of CO2 leakage using eddy covariance techniques at the Ginninderra CO2 controlled release facility". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/near-surface-detection-of-co2-leakage-using-eddy-covariance-techniques-at-the-ginninderra-co2-c

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