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 Riggs Creek flux station was located in Goulburn-Broken catchment in North-Eastern Victoria (GPS coordinates: -36.6499, 145.5760).
The flux tower site was located within an area of dryland agriculture. The surrounding area is dominated by broadacre farming practices. The vegetation cover is predominantly pasture. Elevation of the site is close to 152m and mean annual precipitation at a nearby Bereau of Meteorology site measures 650mm.
Maximum temperatures range from 12.3°C (in July) to 29.7°C (in February), while minimum temperatures range from 10.4°C (in July) to 26.8°C (in February).
The instrument mast was 4 meters tall. Heat, water vapour and carbon dioxide measurements were taken using the open-path eddy flux technique. Temperature, humidity, wind speed, wind direction, rainfall and net radiation were measured. Soil heat fluxes were measured and soil moisture content was gathered using time domain reflectometry.
Credit
We 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.
Purpose
The purpose of the Riggs Creek Flux Station was to: - Monitor and determine the balance of environmental demands for water yields, agricultural productivity, carbon storage and biodiversity within a catchment landscape. - Provide information for other projects (i.e. The Carbon Project which seeks to establish a modelling tool for carbon and water fluxes across various land use types, in order to benefit land management practices in the Goulburn-Broken catchment region.
Lineage
Data collected using standard eddy covariance and meteorological instrumentation on a 5m tower at the Riggs Creek 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.
Procedure Steps1.
Data is measured using standard micro-meteorological instrumentation on a flux tower.
2.
Data is recorded on a data logger and is collected by the site PI.
3.
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.
4.
Filtering for low-ustar conditions, gap filling and partitioning of NEE into GPP and ER are done using ONEFlux.