Flux Tower Measurements from Daintree Rainforest 2008-2023

A collection of flux tower measurements of energy and mass exchange between the surface and atmosphere using eddy covariance techniques, processed with PyFluxPro (v3.5.0). It includes gap-filled Net Ecosystem Exchange (NEE) partitioned into Gross Primary Productivity (GPP) and Ecosystem Respiration (ER). The data originates from a tower in the Cow Bay region of the Daintree Rainforest, managed by James Cook University, with measurements starting in December 2008.

Use Cases

• Partition Net Ecosystem Exchange (NEE) into Gross Primary Productivity (GPP) and Ecosystem Respiration (ER) to analyze carbon cycle dynamics.
• Analyze the relationship between incoming/reflected shortwave radiation, net radiation, and fluxes of heat, water vapor, and carbon dioxide.
• Study the impact of local climate variables like temperature, humidity, and mean annual precipitation (3935 mm) on ecosystem gas exchange.
• Investigate artifacts in radiometric data caused by shadowing on instruments mounted at 35 m, visible as reductions in downwelling radiation.

Strengths

• Data processed using the standardized PyFluxPro (v3.5.0) pipeline, which produces a final, gap-filled product.
• Site provides detailed ecological context: complex mesophyll vine forest with 94 species in a core 1 Ha area and an average tree height of 22 m.
• Long-term monitoring site established in December 2008, providing over a decade of potential temporal data.
• Part of the FNQ Rainforest SuperSite and the Terrestrial Ecosystem Research Network (TERN), indicating integration into a larger observational network.

Limitations

• The early years (2009-2012) had several data gaps, reducing continuity for that period.
• Shadowing of radiometric equipment causes known artifacts, seen as reductions in downwelling radiation with solar inclination.
• Specific data volume (row count), column structure, and file sizes are unknown from the provided input.

Provenance

Source

Terrestrial Ecosystem Research Network's Data Discovery, managed by James Cook University.

Collection Method

Fluxes measured using the open-path eddy covariance technique; data processed using PyFluxPro software.

Time Range

Measurements began in December 2008; the release is labeled 2023_v1.

Freshness

Data release is from 2023, with metadata last updated in March 2026.

Geography

Cow Bay flux station in the Daintree Rainforest, Queensland, Australia. Site elevation is 90 m.