Warra Flux Data Collection
This dataset consists of measurements of the exchange of energy and mass between the surface and the atmospheric boundary-layer in wet sclerophyll forest using eddy covariance techniques.<br /><br /> <em>Eucalyptus obliqua</em> forests dominate the vegetation below 650 m where they exist as fire-maintained communities. On fertile soils these forests attain mature heights in excess of 55m: the tallest <em>E. obliqua</em>reaches a height of 90m. The flux station is installed in a stand of tall, mixed-aged <em>E. obliqua</em> forest (77 and >250 years-old) with a rainforest understorey and a dense man-fern (<em>Dicksonia antarctica</em>) ground-layer, on a small flat of elevation 100 m adjacent to the Huon River. The understorey vegetation progresses from wet sclerophyll (dominated by <em>Pomaderris apatala</em> and <em>Acacia dealbata</em>) to rainforest (dominated by <em>Nothofagus cunninghamii</em>, <em>Atherosperma moschatum</em>, <em>Eucryphia lucida</em> and <em>Phyllocladus aspleniifolius</em>) with increasing time intervals between fire events. The site supports prodigous quantities of coarse woody debris as is characteristic of these fire-maintained eucalypt forests on fertile sites in southern Tasmania. <br />The soil at the flux site is derived from Permian mudstone and has a gradational profile with a dark brown organic clayey silt topsoil overlying a yellow brown clay. <br />The climate of Warra is classified as temperate with a mild summer and no dry season. Mean annual precipitation is 1700 mm with a relatively uniform seasonal distribution. Summer temperatures peak in January (min. 8.4°C – max 19.2°C) with winter temperatures reaching their lowest in July (min 2.6°C – max 8.4°C).<br /><br />The instruments are mounted at the top of an 80m tall guyed steel lattice tower. Supplementary measurements above the canopy include temperature, humidity, windspeed, wind direction, rainfall, incoming and reflected shortwave radiation and net radiation. An open-path gas analyser (EC150) was replaced by a closed-path gas analyser (EC155) at the end of Jan 2015.Soil moisture content is measured using Time Domain Reflectometry, while soil heat fluxes and temperature are also measured. Micro-meteorology (CO2, H2O, energy fluxes), meteorology (temp, humidity, wind speed and direction, rainfall) taken from the Warra Flux Site from 2013 to late 2016. Data incomplete due to ongoing problems since changing the open-path IRGA to a closed path system (CPEC200) during 2015. Soil data (moisture, heat flux, temp) complete for time period. This data is also available at http://data.ozflux.org.au .
Simple
Identification info
- Date (Creation)
- 2013-03-05
- Date (Publication)
- 2021-09-20
- Date (Revision)
- 2024-12-16
- Edition
- 1.0
Publisher
Author
Co-author
- Website
- https://www.tern.org.au/
- Purpose
- The purpose of the Warra flux site is: <br /> to study the ecophysiological processes and rates of C accumulation and decomposition in a mixed-aged, tall, wet Eucalyptus obliqua forest originating from past natual wildfires <br /> to measure the exchanges of carbon dioxide, water vapour and energy between the forest and the atmosphere using micrometeorological techniques <br /> to link ecophysiological processes and rates of C accumulations and decomposition with the biota. <br /> to utilize the measurements in combination with remote sensing data and land surface models to upscale estimate the net exchanges of carbon and water at regional scale.
- 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 site is managed by the University of Tasmania and funded by TERN.
- Status
- On going
Point of contact
- Topic category
-
- Climatology, meteorology, atmosphere
Extent
- Description
- Adjacent to the Huon River in South Western Tasmania.
Temporal extent
- Time period
- 2013-03-05
- 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
-
- air temperature
- degree Celsius
- downward heat flux at ground level in soil
- Watt per Square Meter
- eastward wind
- Meter per Second
- ecosystem respiration
- Micromoles per square metre second
- gross primary productivity of biomass expressed as carbon
- Micromoles per square metre second
- magnitude of surface downward stress
- Kilograms per metre per square second
- mass concentration of carbon dioxide in air
- Milligram per Cubic Meter
- mass concentration of water vapor in air
- Gram per Cubic Meter
- mole fraction of carbon dioxide in air
- Micromoles per mole
- mole fraction of water vapor in air
- Millimoles per mole
- Monin-Obukhov length
- Meter
- net ecosystem exchange
- Micromoles per square metre second
- net ecosystem productivity
- Micromoles per square metre second
- northward wind
- Meter per 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 longwave flux in air
- Watt per Square Meter
- surface downwelling shortwave flux in air
- Watt per Square Meter
- surface friction velocity
- Meter per Second
- surface net downward radiative flux
- Watt per Square Meter
- surface upward flux of available energy
- Watt per Square Meter
- surface upward latent heat flux
- Watt per Square Meter
- surface upward mole flux of carbon dioxide
- Micromoles per square metre second
- surface upward sensible heat flux
- Watt per Square Meter
- surface upwelling longwave flux in air
- Watt per Square Meter
- surface upwelling shortwave flux in air
- Watt per Square Meter
- thickness of rainfall amount
- Millimetre
- upward mole flux of carbon dioxide due inferred from storage
- Micromoles per square metre second
- vertical wind
- Meter per Second
- volume fraction of condensed water in soil
- Cubic Meter per Cubic Meter
- 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
- Meter per Second
- QUDT Units of Measure
-
- degree Celsius
- Watt per Square Meter
- Meter per Second
- Micromoles per square metre second
- Micromoles per square metre second
- Kilograms per metre per square second
- Milligram per Cubic Meter
- Gram per Cubic Meter
- Micromoles per mole
- Millimoles per mole
- Meter
- Micromoles per square metre second
- Micromoles per square metre second
- Meter per Second
- Percent
- degree Celsius
- Kilogram per Kilogram
- Kilogram per Kilogram
- Kilopascal
- Watt per Square Meter
- Watt per Square Meter
- Meter per Second
- Watt per Square Meter
- Watt per Square Meter
- Watt per Square Meter
- Micromoles per square metre second
- Watt per Square Meter
- Watt per Square Meter
- Watt per Square Meter
- Millimetre
- Micromoles per square metre second
- Meter per Second
- Cubic Meter per Cubic Meter
- Kilograms per square metre per second
- Kilopascal
- Kilopascal
- Degree
- Meter per Second
- GCMD Horizontal Resolution Ranges
- GCMD Temporal Resolution Ranges
- Keywords (Discipline)
-
- eddy covariance
- sclerophyll forest
- AU-Wrr
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 />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
Distribution Information
- Distribution format
-
Distributor
Distributor
- OnLine resource
- Catalog for NetCDF files
- 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. 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/227eb5a0-ad1e-451d-b41f-ebab73411bd6
- 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/227eb5a0-ad1e-451d-b41f-ebab73411bd6
Point-of-truth metadata URL
- Date info (Creation)
- 2013-03-05T00:00:00
- Date info (Revision)
- 2024-12-16T00:00:00
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