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 Ridgefield flux station is located approximately 12km west of Pingelly, near Perth, Western Australia. It was established in Jan 2015 and is managed by The University of Western Australia.
about 200km southeast from Perth, Western Australia (GPS coordinates: -32.5061, 116.9668; elevation: 330m). The Future Farm 2050 Project is based on UWA Farm Ridgefield. The Project's vision is to imagine the best-practice farm of 2050 and build and manage it now (
http://www.ioa.uwa.edu.au/future-farm-2050). The site is established in a typical wheat field (a dominant managed land use type in Western Australia) and in an area that has been subject to extensive clearing. We will contrast this with a native vegetated system and explore the past, present and future GHG budgets of these systems.
The flux tower site is 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 330m and mean annual precipitation at a nearby Bureau of Meteorology site at Pingelly measures 446mm.
Maximum temperatures range from 15.3°C (in July) to 31.9°C (in Jan), while minimum temperatures range from 5.5°C (in July) to 15.5°C (in Jan).
The instrument mast is 10 meters tall. Heat, water vapour, carbon dioxide and methane measurements are taken using the open-path eddy flux technique. Temperature, humidity, wind speed, wind direction, rainfall and net radiation are measured. Soil heat fluxes are measured and soil moisture content are collected.
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 Ridgefield Flux Station is to: - Monitor and determine the balance of environmental demands for water yields, agricultural productivity, GHG budgets and biodiversity within a catchment landscape. - Provide information to establish a modelling tool for GHG and water fluxes across various land use types, in order to benefit land management practices in the wheatbelt of Western Australia. The tower is a crucial component of the UWA critical zone observatory which will be the site of a multidisciplinary approach to understanding the landscape dynamics.
Lineage
Data collected using standard eddy covariance and meteorological instrumentation on a 8m tower at the Ridgefield 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.