During an eight-day period in 2014, soil gas and soil flux surveys were conducted at a research site in Qinghai, China, following a well-failure that caused a continuous CO2 leak. The dataset likely contains measurements from two different sampling patterns, including a regular grid and an irregular grid with higher density in high-flux zones, used to map leak distribution and estimate total emissions. The data was collected by researchers and published in the International Journal of Greenhouse Gas Control in 2016.
Use Cases
- Mapping the spatial distribution of a surface CO2 leak based on soil flux survey patterns described.
- Estimating total CO2 emission rates from a leak site using interpolation methods on flux data.
- Identifying the source of leaking CO2 using process-based soil gas analysis and isotopic signatures mentioned.
- Studying the correlation between CO2 flux and other surface parameters like H2O flux as noted in the description.
- Evaluating plume migration over time using surface soil mineralisation data as a proxy.
Strengths
- Data is from a real-world, instrumented research site for studying CO2 leakage.
- Includes an estimated total CO2 emission rate range of 649-1015 kgCO2/d.
- Surveys employed two distinct sampling patterns for spatial mapping and detailed characterization.
Limitations
- Description metadata is limited; actual data quality requires manual inspection after download.
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
Provenance
- Source
- Australian Ocean Data Network (via data_gov_au), based on research published in the International Journal of Greenhouse Gas Control.
- Collection Method
- Field surveys involving soil gas sampling and soil flux measurements using portable multi-gas analysers and laboratory analysis.
- Time Range
- Eight-day survey period in 2014.
- Freshness
- Last updated 2026-06-27 21:38:55.633760; freshness should be verified.
- Geography
- Qinghai research site, west of Haidong, China.