This release consists of flux tower measurements of the exchange of energy and mass between the surface and the atmospheric boundary-layer using eddy covariance techniques. Data were processed using PyFluxPro (v3.4.17) as described by Isaac et al. (2017). PyFluxPro produces a final, gap-filled product with Net Ecosystem Exchange (NEE) partitioned into Gross Primary Productivity (GPP) and Ecosystem Respiration (ER). The Ti Tree East flux station is located on Pine Hill cattle station, approx. 170 km north of Alice Springs in the Northern Territory. The woodland is characterised by an Acacia aneura canopy, with very isolated Corymbia sp. present. The total standing biomass in the TERN core hectare plot is 27.5 t/ha, and the median canopy height is 4.3 m (Corymbia opaca reach 12.3 m height). Elevation of the site is 553 m above sea level, and the terrain is flat. Mean annual precipitation at the nearby (45 km distant) Bureau of Meteorology station is 311 mm - 140 mm (1986-2025), but has ranged between 33 mm in the hydrological years of 2018/2019 to 712 mm in 2016/2017 since the tower is operational. Predominant wind directions are from the southeast and east. The footprint of the flux tower is heterogeneous, with over 80% of the measured fluxes sourced from a small mulga woodland east of the tower and the remainder contributed by an open grassland with widely spaced Corymbia opaca to the west. The soil is characterised as a red kandosol (91:8:1 sand:silt:clay) overlying an approx. 8 m deep water table. Pine Hill Station is a functioning cattle station that has been in operation for longer than 50 years. Fluxes of heat, water vapour and carbon are measured using the open-path eddy covariance technique at 9.8 m. Supplementary measurements above the canopy include temperature and humidity (9.8 m), downwelling and upwelling shortwave and longwave radiation (9.8 m). Precipitation is monitored in a canopy gap near the tower (1.3 m). Supplementary measurements below the canopy include barometric pressure (1 m) and temperature and humidity (2 m). Below ground soil measurements are made in bare soil and include ground heat flux (0.16 m depth), soil temperature (0.02 m – 0.16 m depth) and soil moisture (0.02 – 0.16 m, 0.35 m, 0.60 m and 0.85 m depth).
