Greenhouse Gas Flux Measurements from Arcturus Station

Encompassing eddy covariance measurements of energy and mass exchange between the surface and atmosphere, collected from a station 48 km southeast of Emerald, Queensland. The flux tower operated from June 2011 to early 2014, measuring fluxes of heat, water vapor, methane, and carbon dioxide. Supplementary data includes temperature, humidity, wind, rainfall, net radiation, and soil measurements.

Use Cases

• Analyze seasonal and diurnal patterns in methane and carbon dioxide fluxes from a mixed grassland and cropland site.
• Model the relationship between net radiation components and heat flux to study surface energy balance.
• Investigate correlations between soil moisture, soil temperature measurements, and water vapor flux.
• Assess the impact of wind speed and wind direction on trace gas exchange in the atmospheric boundary layer.

Strengths

• Data collection spanned nearly three years, from June 2011 to early 2014.
• Measurements include fluxes of four key variables: heat, water vapor, methane, and carbon dioxide.
• Site elevation and mean annual precipitation (170m asl and 572mm) are documented for environmental context.
• Instruments were mounted at a height of 6.7m, providing above-canopy measurements.

Limitations

• The dataset's temporal coverage ended in early 2014, limiting analysis of recent trends.
• Specific data volume (row count) and column structure are not provided in the input.
• The site borders two distinct land use types, which may complicate homogeneous flux attribution without precise spatial metadata.

Provenance

Source

Terrestrial Ecosystem Research Network's Data Discovery, also available via OzFlux.

Collection Method

Data gathered using open-path eddy flux technique on a tower with an adjustable instrument arm.

Time Range

June 2011 to early 2014.

Freshness

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Geography

48 km southeast of Emerald, Queensland, Australia.