Erebus Volcano Gas Emissions and Experimental Phase Equilibria

Erebus volcano in Antarctica was monitored for hydrogen, sulfur dioxide, water, and carbon dioxide emissions from its lava lake between December 2010 and January 2011. The dataset includes measurements from low-cost electrochemical sensors and experimental phase equilibria data from 900 to 1025°C. It was produced by the organization SCIOPS.

Use Cases

• Analyze correlations between H2, SO2, H2O, and CO2 concentrations to model plume chemistry.
• Investigate the ~10-minute cyclical variation in the H2/SO2 ratio in relation to surface motion of the lava lake.
• Use experimental phase equilibria data (temperature, pressure, water content, oxygen fugacity) to constrain magma reservoir conditions.
• Estimate the characteristic H2 flux of 0.03 kg s^-1 using combined sensor data and long-term SO2 emission rates.
• Compare redox conditions inferred from gas measurements (e.g., CO2/CO ratio) with those from mineral compositions.

Strengths

• Continuous multi-gas measurements (H2, SO2, H2O, CO2) over a two-month period.
• Experimental data covers a defined parameter space: 900-1025°C, atmospheric to 300 MPa, 0-8wt% water.
• Findings are linked to a specific, well-studied volcanic system (Erebus lava lake).

Limitations

• Sample size and temporal coverage are limited to a single two-month campaign.
• No column names or raw data structure is provided in the description.
• Data is over a decade old, last updated in January 2011.

Provenance

Source

SCIOPS, via NASA Earthdata.

Collection Method

Field measurements using electrochemical sensors and laboratory phase equilibria experiments.

Time Range

December 2010 to January 2011 for field measurements.

Freshness

Data collection ended in January 2011.

Geography

Erebus volcano, Antarctica.