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

Authors / CoAuthors

Schroder, I.F. | Feitz, A.J. | Kuske, T.J. | Zegelin, S.

Abstract

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

Product Type

document

eCat Id

75340

Contact for the resource

Keywords

theme.ANZRC Fields of Research.rdf

• EARTH SCIENCES

( Theme )

• atmosphere

• carbon dioxide - co2

• carbon dioxide leakage

• CO2CRC

• carbon dioxide controlled release facility

• Cooperative Research Centre for Greenhouse Gas Technologies - CO2CRC

• Published_External

Publication Date

2013-01-01T00:00:00

Creation Date

Security Constraints

Australian Government Security ClassificationSystem    

Classification - unclassified

Legal Constraints

Creative Commons Attribution-NonCommercial 4.0 International Licence    

Access - restricted

Use - license

Status

Purpose

Maintenance Information

asNeeded

Topic Category

climatologyMeteorologyAtmosphere

Series Information

9th International Carbon Dioxide Conference, 3-7th Jun 2013, Beijing, China.

Lineage

None

Parent Information

Extents

[-35.50, -35.00, 149.00, 149.50]

Reference System

Spatial Resolution

Service Information

Associations

Downloads and Links

Link to Conference Page  

Download Poster (pdf) [2.9 MB]  

Source Information

CO2CRC-GA Greenhouse Gas Controlled Release Facility collaborative project. Eddy Covariance Slow and Fast Data accessible in: TRIM 2012/429