Wallaby Creek Flux Data Release 2022_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 (v3.3.3) 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/PyFluxPro/wiki </a>. <br /> <br /> The forest is classed as a tall, wet sclerophyll forest, and the dominant <em>Eucalyptus Regnans</em> or Mountain Ash trees have an average canopy height of 75m. The site contains a chronosequence of (20, 80 and 300) stand ages that were established during fires occurring over the last 300 years. The area is assigned the IUCN Category II (National Parks) of the United Nations’ list of National Parks and protected areas, which means that park is primarily managed for ecosystem conservation. The catchment area is dominated by Mountain Ash, the world’s tallest flowering plant (angiosperm). Trees can reach heights of more than 90 metres in areas with high rainfall and fertile soil. Mountain ash forests are confined to the cool mountain regions with elevations ranging from 460 - 1100m and average rainfalls of 1100-2000mm. These trees are well distributed throughout Victoria’s Central Highlands including the Otway Ranges and Strzlecki Ranges; they are also found in Tasmania. The catchment area contains a portion of the Mt Disappointment range, the Divide and the headwaters of Wallaby Creek and Silver Creek, and much of the slopes are characterised as flat to moderate.<br /><br /> The station itself is located within an old growth stand with individual trees as old as 300 years. Below the dominant canopy lies a temperate rainforest understorey consisting of <em>Pomaderris aspera</em> and <em>Olearia argophylla</em> species, which are 10-18 metres tall. The lower layers of vegetation are dominated by tree ferns (<em>Cyathea australis</em> and <em>Dicksonia antartica</em>) and extensive tracts of rosette and rhizonic ferns (<em>Polystichum proliferum</em> and <em>Blechnum wattsii</em>) as well as Acacia trees. <br /> <br /> The major soil type within the forest is krasnozemic soils, which are friable red/brown, with high amounts of organic matter in the upper 20 – 30cm. However, the composition of krasnozemic soils is not homogenous, but rather a variation with altitude can be observed; lower altitudes inhabit grey-yellow podsolised soils compared to higher altitudes of the Kinglake and Hume plateau where the soil composition is krasnozemic loams. The clay content of these soils increases with depth until at least 200 cm deep, where after a transition soils contain rock fragments. The elevation is approximately 720 metres.<br /><br /> The original station was destroyed in February 2009 by bushfires. Before the bushfire, the main mast stood at 110m. In March 2010, a replacement station was established and sat at a height of 5m. Data from the site has been recorded from May 2010 onwards. As the station is relatively new, the post fire instrumentation is currently not as diverse when compared to the pre-fire instrumentation. The climate of the study area is classified as a cool, temperate zone, with the highest temperatures occurring during the summer months of December – February (13.8 – 22.5°C), whilst the coolest temperatures are experienced in May and August (4.7 – 9.2°C). Average annual precipitation is 1209mm, with a maximum rainfall occurring in June (Ashton, 2000). The study site experiences foggy conditions after sunset during autumn and winter.<br /><br />
Simple
Identification info
- Date (Creation)
- 2022-03-17
- Date (Publication)
- 2022-03-28
- Date (Revision)
- 2024-12-16
- Edition
- 1.0
Identifier
Publisher
Author
Co-author
- Website
- https://www.tern.org.au/
- Purpose
- The research aim of the Wallaby Creek flux station is to understand the complex coupling of carbon, water and energy cycles within Australia's old growth temperate forests over various scales in order to assess the impact of future environmental change including to: <br /> measure exchanges of carbon dioxide, water vapour and energy between an old growth, tall forest and the atmosphere using micrometeorological techniques <br /> quantify the carbon sink/source of a temperate, old growth Mountain Ash forest and identify the contribution of such forests to the continents' National Carbon Inventory <br /> provide a database of microclimate and ecological parameters for use in carbon and water modelling projects <br /> investigate how carbon cycles change over successional time scales (decadal to centennial).
- 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 station was established in August 2005 by Monash University as part of an ARC funded sustainable futures project, number DP0451247 and was operated in collaboration with Charles Darwin University and University of Alaska Fairbanks and supported by TERN. The flux station was part of the Australian OzFlux Network and contributed to the international FLUXNET Network.
- Status
- Completed
Point of contact
- Topic category
-
- Climatology, meteorology, atmosphere
Extent
- Description
- In Kinglake National Park, Victoria.
Temporal extent
- Time period
- 2005-08-25 2013-04-09
- 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
- 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
- Maintenance and update frequency
- Not planned
- 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
- AU-Wac
- IUCN Category II
- University of Alaska Fairbanks
- wet sclerophyll forest
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
- Distribution format
-
Distributor
Distributor
- OnLine resource
- NetCDF files (2022_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. 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/d77a14b0-925c-41ad-be99-67f0d78a3cd5
- Title
- TERN GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
Point of contact
- Title
- Wallaby Creek 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/d77a14b0-925c-41ad-be99-67f0d78a3cd5
Point-of-truth metadata URL
- Date info (Creation)
- 2022-03-17T00:00:00
- 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