Soil gas and soil flux survey data collected over eight days in 2014 at a research site in Qinghai, China, following a wellbore failure from a shallow natural CO2 reservoir. The dataset likely contains measurements from two different sampling patterns used to map high-flux zones and estimate total emissions. The data was published by the Australian Ocean Data Network and cited in a 2016 journal article.
Use Cases
- Mapping CO2 leak distribution based on soil flux survey patterns described.
- Estimating total field emission rates based on interpolation methods mentioned.
- Identifying exogenous CO2 sources based on soil gas component ratios.
- Analyzing plume migration over time based on surface soil mineralisation inferences.
Strengths
- Data is from a real-world case study of a CO2 leak, providing a practical testbed.
- Two distinct sampling patterns (regular and irregular grids) were used for spatial mapping.
- Total CO2 emission rate for the site was estimated at 649-1015 kgCO2/d.
- Carbon-13 isotope values (−0.21‰ and −0.22‰) indicate a likely source.
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 2026-05-05 05:03:05.485208; freshness should be verified.
- Geography
- Qinghai research site, west of Haidong, China