Yarramundi Control Flux Data Release 2025_v1

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 (v3.4.18) 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 Yarramundi Control Paddock site is located near Richmond, NSW (GPS coordinates -33.613469, 150.734864). The site is about 1 km east of the Cumberland Plain Woodland flux tower. The climate is warm-temperate, with annual rainfall averaging 728 mm, mean maximum temperature in January of 30.4°C and mean minimum temperature in July of 3.6°C (BOM station 067105). The elevation of the site is about 20 m asl and the topography is flat. The soil is sandy loam in texture, organic carbon content is <1% nutrient availability is very low in the top 10 cm; iron concretions below 50 cm indicate poor drainage at times. The vegetation canopy is less than 1 m tall, and the plant community is dominated by exotic herbaceous perennials, including Conyza sumatrensis, Setaria parviflora, Cynodon dactylon, Commelina cyanea, Senecio madagascariensis, and Eragrostis curvula.

Fluxes of water vapour, carbon dioxide and heat are quantified with the open-path eddy flux technique from a 2.5 m tall mast. Additional measurements above the canopy include temperature, humidity, rainfall and net radiation, and photographs are taken several times per day to track canopy greenness.

Identification info

Date (Creation): 2025-03-20

Date (Publication): 2025-03-25

Date (Revision): 2025-12-10

Edition: 2025_v1

Identifier

Title: DataCite

Code: doi:10.25901/k25w-9c54

Codespace: http://dx.doi.org

Publisher

Terrestrial Ecosystem Research Network

Building 1019, 80 Meiers Rd

Indooroopilly

QLD

4068

Australia

+61 7 3365 9097

Author

Western Sydney University - Pendall, Elise (Theme Leader Soil Biology and Genomics)

Bourke Street, Richmond, 2753, New South Wales, Australia

Richmond

New South Wales

2753

Australia

Website: https://www.tern.org.au/

Purpose: The purpose of Yarramundi Control Paddock flux station is to: <ul style="list-style-type: disc;"> <li>measure the exchange of carbon dioxide, water vapour and energy between an unmanaged pasture ecosystem and the atmosphere using micrometeorological techniques</li> <li>support an understanding of forage dynamics on an active cattle station</li> <li>support an understanding of environmental variability on ecosystem processes (such as photosynthesis, respiration or changes in plant structure and function)</li> <li>utilise the measurements for parameterising forage and grazing models</li> <li>utilise the measurements for parameterising and validating remote sensing measurements over semi-arid savanna ecosystems</li> <li>utilise the measurements for parameterising and validating the Earth System models to better understand the effects of climate change.</li>

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.

Credit: Yarramundi Control Flux Tower station is managed by Western Sydney University. Infrastructure at the site was funded by the Terrestrial Ecosystem Research Network (TERN), a project of the Commonwealth’s National Collaborative Research Infrastructure Strategy (NCRIS). This site is part of OzFlux Australia.

Status: Completed

Point of contact

Western Sydney University - Pendall, Elise (Theme Leader Soil Biology and Genomics)

Bourke Street, Richmond, 2753, New South Wales, Australia

Bourke Street

Richmond

New South Wales

2753

Australia

Topic category

Climatology, meteorology, atmosphere

Extent

Description: Near Richmond, NSW, Australia.

Temporal extent

Time period: 2019-10-22 2025-01-01

Title: Beringer J., Hutley L. B., McHugh I., Arndt S. K., Campbell D., Cleugh H. A., Cleverly J., Resco de Dios V., Eamus D., Evans B., Ewenz C., Grace P., Griebel A., Haverd V., Hinko-Najera N., Huete A., Isaac P., Kanniah K., Leuning R., Liddell M. J., Macfarlane C., Meyer W., Moore C., Pendall E., Phillips A., Phillips R. L., Prober S. M., Restrepo-Coupe N., Rutledge S., Schroder I., Silberstein R., Southall P., Yee M. S., Tapper N. J., van Gorsel E., Vote C., Walker J. and Wardlaw T. (2016). An introduction to the Australian and New Zealand flux tower network - OzFlux, Biogeosciences, 13: 5895-5916

Website: Beringer J., Hutley L. B., McHugh I., Arndt S. K., Campbell D., Cleugh H. A., Cleverly J., Resco de Dios V., Eamus D., Evans B., Ewenz C., Grace P., Griebel A., Haverd V., Hinko-Najera N., Huete A., Isaac P., Kanniah K., Leuning R., Liddell M. J., Macfarlane C., Meyer W., Moore C., Pendall E., Phillips A., Phillips R. L., Prober S. M., Restrepo-Coupe N., Rutledge S., Schroder I., Silberstein R., Southall P., Yee M. S., Tapper N. J., van Gorsel E., Vote C., Walker J. and Wardlaw T. (2016). An introduction to the Australian and New Zealand flux tower network - OzFlux, Biogeosciences, 13: 5895-5916
Related documentation

Maintenance and update frequency: Biannually

GCMD Science Keywords

ANZSRC Fields of Research

TERN Platform Vocabulary

Yarramundi Control Flux Station

TERN Instrument Vocabulary

TERN Parameter Vocabulary

QUDT Units of Measure

GCMD Horizontal Resolution Ranges

Point Resolution

GCMD Temporal Resolution Ranges

1 minute - < 1 hour

Resource constraints

Use limitation: The Creative Commons Attribution 4.0 International (CC BY 4.0) license allows others to copy, distribute, display, and create derivative works provided that they credit the original source and any other nominated parties. Details are provided at https://creativecommons.org/licenses/by/4.0/

File name: 88x31.png

File description: CCBy Logo from creativecommons.org

File type: png

Linkage: https://w3id.org/tern/static/cc-by/88x31.png

Title: Creative Commons Attribution 4.0 International Licence

Alternate title: CC-BY

Edition: 4.0

Website: https://creativecommons.org/licenses/by/4.0/

Access constraints: License

Use constraints: Other restrictions

Other constraints: TERN services are provided on an “as-is” and “as available” basis. Users use any TERN services at their discretion and risk. They will be solely responsible for any damage or loss whatsoever that results from such use including use of any data obtained through TERN and any analysis performed using the TERN infrastructure. Web links to and from external, third party websites should not be construed as implying any relationships with and/or endorsement of the external site or its content by TERN. Please advise any work or publications that use this data via the online form at https://www.tern.org.au/research-publications/#reporting

Other constraints: Please cite this dataset as {Author} ({PublicationYear}). {Title}. {Version, as appropriate}. Terrestrial Ecosystem Research Network. Dataset. {Identifier}.

Resource constraints

Classification: Unclassified

Environment description: File naming convention The NetCDF files follow the naming convention below: SiteName_ProcessingLevel_FromDate_ToDate_Type.nc<ul style="list-style-type: disc;"> <li>SiteName: short name of the site</li> <li>ProcessingLevel: file processing level (L3, L4, L5, L6) </li> <li>FromDate: temporal interval (start), YYYYMMDD</li> <li>ToDate: temporal interval (end), YYYYMMDD</li> <li>Type (Level 6 only): Summary, Monthly, Daily, Cumulative, Annual</li></ul> For the NetCDF files at Level 6 (L6), there are several additional 'aggregated' files. For example: <ul style="list-style-type: disc;"> <li>Summary: This file is a summary of the L6 data for daily, monthly, annual and cumulative data. The files Monthly to Annual below are combined together in one file.</li> <li>Monthly: This file shows L6 monthly averages of the respective variables, e.g. AH, Fc, NEE, etc.</li> <li>Daily: same as Monthly but with daily averages.</li> <li>Cumulative: File showing cumulative values for ecosystem respiration, evapo-transpiration, gross primary product, net ecosystem exchange and production as well as precipitation.</li> <li>Annual: same as Monthly but with annual averages.</li></ul>

Distribution Information

Distribution format

Distributor

Terrestrial Ecosystem Research Network

80 Meiers Road, Indooroopilly, Queensland, 4068, Australia

Indooroopilly

Queensland

4068

Australia

OnLine resource: NetCDF files (2025_v1)

OnLine resource: ro-crate-metadata.json

Data quality info

Hierarchy level: Dataset

Other: Processing levels Under each of the data release directories, the netcdf files are organised by processing levels (L3, L4, L5 and L6):<ul style="list-style-type: disc;"> <li>L3 (Level 3) processing applies a range of quality assurance/quality control measures (QA/QC) to the L1 data. The variable names are mapped to the standard variable names (CF 1.8) as part of this step. The L3 netCDF file is then the starting point for all further processing stages.</li> <li>L4 (Level 4) processing fills gaps in the radiation, meteorological and soil quantities utilising AWS (automated weather station), ACCESS-G (Australian Community Climate and Earth-System Simulator) and ERA5 (the fifth generation ECMWF atmospheric reanalysis of the global climate).</li> <li>L5 (Level 5) processing fills gaps in the flux data employing the artificial neural network SOLO (self-organising linear output map).</li> <li>L6 (Level 6) processing partitions the gap-filled NEE into GPP and ER.</li></ul> Each processing level has two sub-folders ‘default’ and ‘site_pi’:<ul style="list-style-type: disc;"> <li>default: contains files processed using PyFluxPro</li> <li>site_pi: contains files processed by the principal investigators of the site.</li></ul> If the data quality is poor, the data is filled from alternative sources. Filled data can be identified by the Quality Controls flags in the dataset. Quality control checks include: <ul style="list-style-type: disc;"> <li>range checks for plausible limits</li> <li>spike detection</li> <li>dependency on other variables</li> <li>manual rejection of date ranges</li></ul> Specific checks applied to the sonic and IRGA data include 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. Yarramundi Control Flux Tower was established in 2019, and is currently active. The processed data release is currently ongoing, biannually.

Title: Isaac P., Cleverly J., McHugh I., van Gorsel E., Ewenz C. and Beringer, J. (2017). OzFlux data: network integration from collection to curation, Biogeosciences, 14: 2903-2928

Website: https://doi.org/10.5194/bg-14-2903-2017

Abstract: Isaac P., Cleverly J., McHugh I., van Gorsel E., Ewenz C. and Beringer, J. (2017). OzFlux data: network integration from collection to curation, Biogeosciences, 14: 2903-2928

Resource lineage

Statement: All flux raw data is subject to the quality control process OzFlux QA/QC to generate data from L1 to L6. Levels 3 to 6 are available for re-use. Datasets contain Quality Controls flags which will indicate when data quality is poor and has been filled from alternative sources. For more details, refer to Isaac et al. (2017).

Hierarchy level: Dataset

Title: Isaac P., Cleverly J., McHugh I., van Gorsel E., Ewenz C. and Beringer, J. (2017). OzFlux data: network integration from collection to curation, Biogeosciences, 14: 2903-2928

Website: https://doi.org/10.5194/bg-14-2903-2017
Method documentation

Title: PyFluxPro

Website: https://github.com/OzFlux/PyFluxPro/wiki
Method documentation

Reference System Information

Reference system identifier: EPSG/EPSG:4326

Reference system type: Geodetic Geographic 2D

Metadata

Metadata identifier

urn:uuid/e073ca4e-0d66-4ab4-8235-0d194898e3b2

Title: TERN GeoNetwork UUID

Language: English

Character encoding: UTF8

Point of contact

Terrestrial Ecosystem Research Network

Building 1019, 80 Meiers Rd

Indooroopilly

QLD

4068

Australia

+61 7 3365 9097

Title: Yarramundi Control Flux Data Collection

Identifier

Code: 3ec2e557-4d21-4c06-8781-c3558e0d5cfb

Codespace: https://geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/

Description: Parent Metadata Record

Type of resource

Resource scope: Dataset

Metadata linkage: https://geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/e073ca4e-0d66-4ab4-8235-0d194898e3b2
Point-of-truth metadata URL

Date info (Creation): 2025-03-25T00:00:00.000000+00:00

Date info (Revision): 2025-12-10T09:44:17.812457+00:00

Metadata standard

Title: ISO 19115-1:2014/AMD 1:2018 Geographic information - Metadata - Fundamentals

Edition: 1

Metadata standard

Title: ISO/TS 19115-3:2016

Edition: 1.0

Metadata standard

Title: ISO/TS 19157-2:2016

Edition: 1.0

Title: Terrestrial Ecosystem Research Network (TERN) Metadata Profile of ISO 19115-3:2016 and ISO 19157-2:2016

Date (published): 2021

Edition: 1.0

Identifier

Code: 10.5281/zenodo.5652221

Website: https://github.com/ternaustralia/TERN-ISO19115/releases/tag/v1.0

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