Samford Ecological Research Facility Flux Data Release 2022_v2
<br>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 (v3.4.7) 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).</br>
<br>Samford flux station is situated on an improved (<em>Paspalum dilatum</em>) pasture in the humid subtropical climatic region of coastal south-east Queensland. Located only 20 km from the centre of Brisbane city, Samford Valley provides an ideal case study to examine the impact of urbanisation and land use change on ecosystem processes. The valley covers an area of some 82 km<sup>2</sup> and is drained in the southern regions by the Samford creek, which extends some 13 km to Samford Village and into the South Pine River. The Samford Valley is historically a rural area experiencing intense urbanisation, with the population increasing almost 50% in the 10 years to 2006 (Morton Bay Regional Council, 2011). Within the Samford valley study region, the Samford Ecological Research Facility (SERF) not only represents a microcosm of current and historical land uses in the valley, but provides a unique opportunity to intensively study various aspects of ecosystem health in a secure, integrated and long term research capacity. Mean annual minimum and maximum temperatures at a nearby Bureau of Meteorology site are 13.1 °C and 25.6 °C respectively while average rainfall is 1102 mm.</br>
Simple
Identification info
- Date (Creation)
- 2010-06-02
- Date (Publication)
- 2022-08-04
- Date (Revision)
- 2025-12-10
- Edition
- 2022_v2
Identifier
Publisher
Co-author
Queensland University of Technology - Tucker, David (Research Assistant)
2 George Street, Brisbane, 4000, Queensland, Australia
Brisbane
Queensland
4000
Australia
Author
Institute for Future Environments, Queensland University of Technology - Grace, Peter (Professor of Global Change and Theme Leader)
2 George Street, Brisbane, 4000, Queensland, Australia
Brisbane
Queensland
4000
Australia
Author
Institute for Future Environments, Queensland University of Technology - Rowlings, David ()
2 George Street, Brisbane, 4000, Queensland, Australia
Brisbane
Queensland
4000
Australia
Author
Queensland University of Technology - Grace, Liam ()
2 George Street, Brisbane, 4000, Queensland, Australia
Brisbane
Queensland
4000
Australia
- Website
- https://www.tern.org.au/
- Purpose
- The purpose of the Samford site is to:<ul style="list-style-type: disc;"> <li>examine the influence of land-use change and intensification associated with peri-urban environments on soil, plant, animal and atmosphere interactions</li> <li>measure the exchange of carbon dioxide, water vapour and energy between the soil/pasture and the atmosphere of an improved pasture in response to increasing harvest intervals</li> <li>use micrometeorological techniques in conjunction with automatic GHG static closed chambers (CO<sub>2</sub>, N<sub>2</sub>O, CH<sub>4</sub>), soil moisture probe transects, stream water quality and terrestrial biomass measurements to close the carbon, water and nitrogen budgets of the improved pasture</li> <li>develop a full global warming potential analysis from this data for this land use</li> <li>examine the suitability of micrometeorological techniques in complex terrain in a sub-tropical environment.</li></ul>
- 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
- <br>The site was established around the Samford Ecological Research Facility and managed by the Queensland University of Technology (QUT).</br> <br>This work was jointly funded by the Terrestrial Ecosystem Research Network (TERN), an Australian Government National Collaborative Research Infrastructure Strategy (NCRIS) project, and the Queensland Government Research Infrastructure Co-investment Fund (RICF).</br>
- Status
- On going
Point of contact
Institute for Future Environments, Queensland University of Technology - Grace, Peter (Professor of Global Change and Theme Leader)
2 George Street, Brisbane, 4000, Queensland, Australia
2 George Street
Brisbane
Queensland
4000
Australia
Point of contact
Institute for Future Environments, Queensland University of Technology - Rowlings, David ()
2 George Street, Brisbane, 4000, Queensland, Australia
2 George Street
Brisbane
Queensland
4000
Australia
Point of contact
Queensland University of Technology - Grace, Liam ()
2 George Street, Brisbane, 4000, Queensland, Australia
2 George Street
Brisbane
Queensland
4000
Australia
- Topic category
-
- Climatology, meteorology, atmosphere
Extent
- Description
- 20km from the centre of Brisbane, Queensland
N
S
E
W
))
Temporal extent
- Time period
- 2010-06-02
- 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
- Maintenance and update frequency
- Biannually
- GCMD Science Keywords
-
- BIOGEOCHEMICAL PROCESSES
- LAND PRODUCTIVITY
- EVAPOTRANSPIRATION
- TERRESTRIAL ECOSYSTEMS
- ATMOSPHERIC PRESSURE MEASUREMENTS
- TURBULENCE
- WIND SPEED
- WIND DIRECTION
- TRACE GASES/TRACE SPECIES
- ATMOSPHERIC CARBON DIOXIDE
- PHOTOSYNTHETICALLY ACTIVE RADIATION
- LONGWAVE RADIATION
- SHORTWAVE RADIATION
- INCOMING SOLAR RADIATION
- HEAT FLUX
- AIR TEMPERATURE
- PRECIPITATION AMOUNT
- HUMIDITY
- SOIL MOISTURE/WATER CONTENT
- SOIL TEMPERATURE
- ANZSRC Fields of Research
- TERN Platform Vocabulary
- TERN Instrument Vocabulary
- TERN Parameter Vocabulary
-
- air temperature
- Degree Celsius
- downward heat flux at ground level in soil
- Watt per Square Metre
- ecosystem respiration
- Micromole per Square Metre Second
- gross primary productivity of biomass expressed as carbon
- Micromole per Square Metre Second
- magnitude of surface downward stress
- Kilograms per metre per square second
- mass concentration of water vapor in air
- Gram per Cubic Metre
- mole fraction of water vapor in air
- Micromole per Mole
- Monin-Obukhov length
- Millimole per Mole
- net ecosystem exchange
- Micromole per Square Metre Second
- net ecosystem productivity
- Micromole per Square Metre Second
- relative humidity
- Percent
- soil temperature
- Degree Celsius
- specific humidity
- Kilogram per Kilogram
- specific humidity saturation deficit in air
- Kilogram per Kilogram
- surface air pressure
- Kilopascal
- surface downwelling shortwave flux in air
- Watt per Square Metre
- surface friction velocity
- Metre per Second
- surface net downward radiative flux
- Watt per Square Metre
- surface upward flux of available energy
- Watt per Square Metre
- surface upward latent heat flux
- Watt per Square Metre
- surface upward mole flux of carbon dioxide
- Micromole per Square Metre Second
- surface upward sensible heat flux
- Watt per Square Metre
- thickness of rainfall amount
- Millimetre
- volume fraction of condensed water in soil
- Cubic Metre per Cubic Metre
- water evapotranspiration flux
- Kilograms per square metre per second
- water vapor partial pressure in air
- Kilopascal
- water vapor saturation deficit in air
- Kilopascal
- wind from direction
- Degree
- wind speed
- Metre per Second
- mole fraction of carbon dioxide in air
- Micromole per Mole
- QUDT Units of Measure
-
- Degree Celsius
- Watt per Square Metre
- Micromole per Square Metre Second
- Micromole per Square Metre Second
- Kilograms per metre per square second
- Gram per Cubic Metre
- Micromole per Mole
- Millimole per Mole
- Micromole per Square Metre Second
- Micromole per Square Metre Second
- Percent
- Degree Celsius
- Kilogram per Kilogram
- Kilogram per Kilogram
- Kilopascal
- Watt per Square Metre
- Metre per Second
- Watt per Square Metre
- Watt per Square Metre
- Watt per Square Metre
- Micromole per Square Metre Second
- Watt per Square Metre
- Millimetre
- Cubic Metre per Cubic Metre
- Kilograms per square metre per second
- Kilopascal
- Kilopascal
- Degree
- Metre per Second
- Micromole per Mole
- GCMD Horizontal Resolution Ranges
- GCMD Temporal Resolution Ranges
- Keywords (Discipline)
-
- eddy covariance
- pasture
- AU-Sam
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
- Title
- Creative Commons Attribution 4.0 International Licence
- Alternate title
- CC-BY
- Edition
- 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. <br /><br />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.<br /><br />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
- <br>File naming convention</br> <br>The NetCDF files follow the naming convention below:</br> <br>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, <em>etc.</em></li> <li>Daily: same as Monthly but with daily averages.</li> <li>Cumulative: File showing cumulative values for ecosystem respiration, evapo-transpiration, gross primary productivity, 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
Distributor
Terrestrial Ecosystem Research Network
80 Meiers Road, Indooroopilly, Queensland, 4068, Australia
Indooroopilly
Queensland
4068
Australia
- OnLine resource
- NetCDF files (2022_v2)
- OnLine resource
- ro-crate-metadata.json
Data quality info
- Hierarchy level
- Dataset
- Other
- <br>Processing levels</br> <br>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 CO<sub>2</sub> and H<sub>2</sub>O signal strength, depending upon the configuration of the IRGA.</br>
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/d22be728-8044-4330-ae32-59f7c833394f
- Title
- TERN GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
Point of contact
- Title
- Samford Ecological Research Facility Flux Data Collection
Identifier
- 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/d22be728-8044-4330-ae32-59f7c833394f
Point-of-truth metadata URL
- Date info (Creation)
- 2022-03-17T00:00:00.000000+00:00
- Date info (Revision)
- 2025-12-10T09:49:44.686723+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
Overviews
Spatial extent
N
S
E
W
Provided by
Associated resources
Not available