Brief description
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 as described by Isaac et al. (2017) for the quality control and post-processing steps. The final, gap-filled product containing Net Ecosystem Exchange (NEE) partitioned into Gross Primary Productivity (GPP) and Ecosystem Respiration (ER) has been produced using the ONEFlux software as described in Pastorello et al. (2020). This data set has been produced as part of the FLUXNET Shuttle project.
The Wedge Tail flux tower (42°05'29"S, 147°04'46"E) is located on the traditional lands of the Lairmairrener people within the Silver Plains Reserve, a property managed by the Tasmanian Land Conservancy.
Installed on 29 July 2024 by the University of Tasmania, the Wedge Tail flux tower is situated approximately 550 meters from the adjacent Silver Plains Flux Tower.
The surrounding landscape is a gently south-southwest sloping, species-rich sedgeland and grassland, with a history of grazing. Positioned at an elevation of 860 meters, the site receives an average annual precipitation of approximately 900 mm. The soil at the site is organosol on a Jurassic dolerite geology. Average seasonal temperatures range from 16°C in summer to 6°C in winter.
Lineage
Data collected using standard eddy covariance and meteorological instrumentation on a 2.6m tower at the Wedgetail site. The data were quality controlled using the PyFluxPro software package, see Isaac et al. (2017), which is available at https://github.com/OzFlux/PyFluxPro. Gap filling and partitioning has been done using the ONEFlux software package, see Pastorello et al. 2020, which is available at https://github.com/fluxnet/ONEFlux.Data Creation
Data is measured using standard micro-meteorological instrumentation on a flux tower.
Data is recorded on a data logger and is collected by the site PI.
Data quality control including removal of data outside plausible ranges, removal of spikes, exclusion of particular date ranges and removal of data based on the dependence of one variable on another is done using PyFluxPro.
Filtering for low-ustar conditions, gap filling and partitioning of NEE into GPP and ER are done using ONEFlux.
Notes
CreditWe at TERN acknowledge the Traditional Owners and Custodians throughout Australia, New Zealand and all nations. We honour their profound connections to land, water, biodiversity and culture and pay our respects to their Elders past, present and emerging.
The purpose of the Wedgetail flux tower is to:
- Monitor exchanges of carbon dioxide, water vapour and energy in a high-altitude grassy peatland ecosystem on the Tasmanian Central Plateau.
- Quantify the carbon balance of the ecosystem, along with the key components of net ecosystem exchange, gross primary productivity and ecosystem respiration.
- Identify key environmental and climatic drivers of carbon, water and energy fluxes.
- Complement manual chamber measurements of net ecosystem CO2 exchange in an adjacent climate change experiment.
- Utilize measurements alongside manual chamber measurements and ancillary environmental variables to model ecosystem carbon dynamics under a future climate.
Furthermore Wedgetail serves as a control site for the Silver Plains flux tower (AU-Sil), situated ~550m east of Wedgetail, which will undergo hydrological remediation from 2027-2028.
Data Quality Assessment Scope
local :
dataset
The data have been quality controlled using the PyFluxPro software. Quality control checks applied to the data include:<ul style="list-style-type: disc;">
<li>range checks for plausible limits</li>
<li>spike detection and removal</li>
<li>dependency on other variables</li>
<li>manual rejection of date ranges</li></ul>
<br>
Specific checks applied to the sonic and IRGA data including rejection of points based on the sonic and IRGA diagnostic values and on either automatic gain control (AGC) or CO2 and H2O signal strength, depending upon the configuration of the IRGA.</br>
<br>If the data quality is poor, the meteorological data is filled from ERA5 reanalysis data and fluxes are filled using the Marginal Distribution Sampling method. Filled data can be identified by the Quality Controls flags in the dataset. </br>
<br>The ONEFlux software used to gap fill and partition this data set also applies a Median Absolute Deviation (MAD) filter to the carbon dioxide, latent heat and sensible heat before the gap filling step.</br>
Isaac P., Cleverly J., McHugh I., van Gorsel E., Ewenz C. and Beringer, J. (2017). Oz
doi :
https://doi.org/10.5194/bg-14-2903-2017
Data Quality Assessment Result
local :
Quality Result
No anomalous data detected after quality control.
Created: 2026-03-19
Issued: 2026-04-02
Modified: 2026-04-02
Data time period: 2024-01-01 to 2025-08-25
text: The Wedge Tail flux tower is situated approximately 550 meters from the adjacent Silver Plains Flux Tower.
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Point-of-truth metadata URL
Isaac P., Cleverly J., McHugh I., van Gorsel E., Ewenz C. and Beringer, J. (2017). OzFlux data: network integration from collection to curation,
doi :
https://doi.org/10.5194/bg-14-2903-2017
PyFluxPro
uri :
https://github.com/OzFlux/PyFluxPro
ONEFlux
uri :
https://github.com/fluxnet/ONEFlux
Pastorello, G., Trotta, C., Canfora, E. et al. The FLUXNET2015 dataset and the ONEFlux processing pipeline for eddy covariance data. Sci Data 7, 225 (2020).
- URI : geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/a5fa99e5-e64c-469d-a6fc-58d379ef531c
- global : a5fa99e5-e64c-469d-a6fc-58d379ef531c
