Ti Tree East Flux Data Release 2021_v1
This data release consists of flux tower measurements of the exchange of energy and mass between the surface and the atmospheric boundary-layer in semi-arid eucalypt woodland using eddy covariance techniques. It been processed using PyFluxPro (v3.3.1) as described in Isaac et al. (2017), <a href=" https://doi.org/10.5194/bg-14-2903-2017 "> https://doi.org/10.5194/bg-14-2903-2017 </a>. PyFluxPro takes data recorded at the flux tower and process this data to a final, gap-filled product with Net Ecosystem Exchange (NEE) partitioned into Gross Primary Productivity (GPP) and Ecosystem Respiration (ER). For more information about the processing levels, see <a href=" https://github.com/OzFlux/PyFluxPro/wiki "> https://github.com/OzFlux </a>.<br /> <br />The Ti Tree East site was established in July 2012 and is managed by the University of Technology Sydney. Pine Hill Station is a functioning cattle station that has been in operation for longer than 50 years. However, the east side has not been stocked in over three years. The site is a mosaic of the primary semi-arid biomes of central Australia: grassy mulga woodland and Corymbia/Triodia savanna.The woodland is characterised by a mulga (Acacia aneura) canopy, which is 4.85 m tall on average. The soil is red sand overlying an 8 m deep water table. Elevation of the site is 553 m above sea level, and the terrain is flat. Mean annual precipitation at the nearby (30 km to the south) Bureau of Meteorology station is 305.9 mm but ranges between 100 mm in 2009 to 750 mm in 2010. Predominant wind directions are from the southeast and east. The instrument mast is 10 m tall. Fluxes of heat, water vapour and carbon are measured using the open-path eddy covariance technique at 9.81m. Supplementary measurements above the canopy include temperature and humidity (9.81 m), windspeed and wind direction (8.28 m), downwelling and upwelling shortwave and longwave radiation (9.9 m). Precipitation is monitored in the savanna (2.5m). Supplementary measurements within and below the canopy include barometric pressure (2 m). Below ground soil measurements are made beneath Triodia, mulga and grassy understorey and include ground heat flux (0.08 m), soil temperature (0.02 m – 0.06 m) and soil moisture (0 – 0.1m, 0.1 – 0.3m, 0.6 – 0.8m and 1.0 – 1.2m).
<br />For additional site information, see http://ozflux.org.au/siteOfTheMonth/2020-09Alice-and-TiTree/2020-09Alice-and-TiTree.html . <br /><br />
Simple
Identification info
- Date (Creation)
- 2022-01-21
- Date (Publication)
- 2022-01-21
- Date (Revision)
- 2024-05-12
- Edition
- 1.0
Identifier
Publisher
Author
Co-author
Co-author
Co-author
- Website
- https://www.tern.org.au/
- Purpose
- The purpose of the Ti Tree East flux station is to :<br /> measure the exchanges of carbon dioxide, water vapour and energy in a semi-arid ecosystem with potential access to groundwater<br /> identify flux footprints associated with contributions by mulga versus Corymbia savannas<br /> compare water use efficiency, GPP and ecosystem respiration between adjacent semi-arid ecosystems (Alice Springs mulga)<br /> identify relationships between groundwater, soil moisture, rainfall and evapotranspiration<br /> identify phenological trends and to relate phenology to flux footprints and remote sensing of water and carbon fluxes.<br />
- 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
- The Ti Tree East flux station is managed by the University of Technology Sydney. It is established in conjunction with the TERN Alice Springs Supersite, the Alice Springs OzFlux site and the Woodforde River NGCRT Superscience Site.
- Status
- Completed
Point of contact
Point of contact
- Topic category
-
- Climatology, meteorology, atmosphere
Extent
- Description
- Pine Hill cattle station, Northern Territory.
Temporal extent
- Time period
- 2012-07-18 2021-02-01
Vertical element
- Minimum value
- 0.0
- Maximum value
- 0.0
- Reference system type
- Geodetic Geographic 3D
- Title
- Isaac, Peter et al., 2017. OzFlux data: network integration from collection to curation. Biogeosciences, 14(12). doi:10.5194/bg-14-2903-2017
- Website
-
Isaac, Peter et al., 2017. OzFlux data: network integration from collection to curation. Biogeosciences, 14(12). doi:10.5194/bg-14-2903-2017
Related documentation
- Title
- Beringer, Jason et al., 2016. An introduction to the Australian and New Zealand flux tower network – OzFlux. Biogeosciences, 13(21). doi:10.5194/bg-13-5895-2016
- Website
-
Beringer, Jason et al., 2016. An introduction to the Australian and New Zealand flux tower network – OzFlux. Biogeosciences, 13(21). doi:10.5194/bg-13-5895-2016
Related documentation
- 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
-
- mass concentration of carbon dioxide in air
- Milligram per Cubic Meter
- surface upward latent heat flux
- Watt per Square Meter
- downward heat flux at ground level in soil
- Watt per Square Meter
- surface downwelling longwave flux in air
- Watt per Square Meter
- surface upwelling longwave flux in air
- Watt per Square Meter
- surface downwelling shortwave flux in air
- Watt per Square Meter
- surface upwelling shortwave flux in air
- Watt per Square Meter
- thickness of rainfall amount
- Millimetre
- relative humidity
- Percent
- specific humidity
- Kilogram per Kilogram
- soil moisture content
- Cubic Meter per Cubic Meter
- air temperature
- degree Celsius
- soil temperature
- degree Celsius
- water vapor partial pressure in air
- Kilopascal
- water vapor saturation deficit in air
- Kilopascal
- wind from direction
- Degree
- wind speed
- Meter per Second
- surface air pressure
- Kilopascal
- surface net downward radiative flux
- Watt per Square Meter
- surface upward sensible heat flux
- Watt per Square Meter
- mass concentration of water vapor in air
- Gram per Cubic Meter
- surface upward flux of available energy
- Watt per Square Meter
- magnitude of surface downward stress
- Kilograms per metre per square second
- mole concentration of water vapor in air
- Millimoles per mole
- Monin-Obukhov length
- Meter
- specific humidity saturation deficit in air
- Kilogram per Kilogram
- eastward wind
- Meter per Second
- northward wind
- Meter per Second
- vertical wind
- Meter per Second
- ecosystem respiration
- Micromoles per square metre second
- water evapotranspiration flux
- Kilograms per square metre per second
- gross primary productivity of biomass expressed as carbon
- Micromoles per square metre second
- net ecosystem exchange
- Micromoles per square metre second
- net ecosystem productivity
- Micromoles per square metre second
- surface upward mole flux of carbon dioxide
- Micromoles per square metre second
- surface friction velocity
- Meter per Second
- upward mole flux of carbon dioxide due inferred from storage
- Micromoles per square metre second
- QUDT Units of Measure
-
- Milligram per Cubic Meter
- Watt per Square Meter
- Watt per Square Meter
- Watt per Square Meter
- Watt per Square Meter
- Watt per Square Meter
- Watt per Square Meter
- Millimetre
- Percent
- Kilogram per Kilogram
- Cubic Meter per Cubic Meter
- degree Celsius
- degree Celsius
- Kilopascal
- Kilopascal
- Degree
- Meter per Second
- Kilopascal
- Watt per Square Meter
- Watt per Square Meter
- Gram per Cubic Meter
- Watt per Square Meter
- Kilograms per metre per square second
- Millimoles per mole
- Meter
- Kilogram per Kilogram
- Meter per Second
- Meter per Second
- Meter per Second
- Micromoles per square metre second
- Kilograms per square metre per second
- Micromoles per square metre second
- Micromoles per square metre second
- Micromoles per square metre second
- Micromoles per square metre second
- Meter per Second
- Micromoles per square metre second
- GCMD Horizontal Resolution Ranges
- GCMD Temporal Resolution Ranges
- Keywords (Discipline)
-
- AU-TTE
- mulga woodland
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
Resource constraints
- Classification
- Unclassified
Distribution Information
Distributor
Distributor
- Distribution format
-
- OnLine resource
- NetCDF files (2021_v1)
- OnLine resource
- ro-crate-metadata.json
Data quality info
- Hierarchy level
- Dataset
- Other
- 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 (i) range checks for plausible limits, (ii) spike detection, (iii) dependency on other variables and (iv) manual rejection of date ranges. 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. For more details, refer to Isaac et al (2017) in the Publications section, https://doi.org/10.5194/bg-14-2903-2017. <br> For further information about the software (PyFluxPro) used to process and quality control the flux data, see https://github.com/OzFlux/PyFluxPro/wiki.
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) in the Publications section, https://doi.org/10.5194/bg-14-2903-2017 .
- Hierarchy level
- Dataset
Reference System Information
- Reference system identifier
- EPSG/EPSG:4326
- Reference system type
- Geodetic Geographic 2D
Metadata
- Metadata identifier
-
urn:uuid/5423af42-a3d6-48b4-b688-47af27c0f42c
- Title
- TERN GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
Point of contact
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/5423af42-a3d6-48b4-b688-47af27c0f42c
Point-of-truth metadata URL
- Date info (Creation)
- 2022-01-21T00:00:00
- Date info (Revision)
- 2024-05-12T00:00:00
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