An eight-day survey in 2014 characterized a surface CO2 leak at a research site in Qinghai, China. The dataset includes soil gas and soil flux measurements used to map leak distribution and estimate an emission rate of 649-1015 kgCO2/d. It was published by the Australian Ocean Data Network and supports research on monitoring technologies for geological carbon storage.
Use Cases
- Validate soil gas ratio methods for leak source identification based on the process-based approach described.
- Model the spatial distribution of a CO2 plume based on the described regular and irregular sampling grids.
- Calibrate emission rate estimation techniques using the cubic interpolation method and total field emission rate provided.
- Investigate correlations between CO2 flux and other environmental parameters like surface H2O flux as noted in the description.
- Assess the utility of surface soil mineralisation for inferring historical plume migration over an 11-year period.
Strengths
- Includes a quantified total CO2 emission rate estimate of 649-1015 kgCO2/d.
- Describes two distinct sampling patterns (regular and irregular grids) for spatial mapping.
- Contains carbon-13 isotope data with specific values (-0.21‰ and -0.22‰) for source identification.
- Provides a temporal reference for plume migration analysis over 11 years.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Description metadata is limited; actual data quality requires manual inspection after download.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Soil gas and soil flux surveys conducted over an eight-day period.
- Time Range
- 2014
- Freshness
- Last updated 2026-06-17 00:08:14.065709; freshness should be verified.
- Geography
- Qinghai research site, west of Haidong, China