Daly Uncleared Flux Data Collection

This dataset consists of measurements of the exchange of energy and mass between the surface and the atmospheric boundary-layer in woodland savanna using eddy covariance techniques.<br /><br /> The site is woodland savanna with an overstory co-dominated by tree species <em>E. tetrodonta</em>, <em>C. latifolia</em>, <em>Terminalia grandiflora</em>, <em>Sorghum sp.</em> and <em>Heteropogon triticeus</em>. Average canopy height measures 16.4 m. <br />Elevation of the site is close to 110m and mean annual precipitation at a nearby Bureau of Meteorology site is 1170mm. Maximum temperatures range from 37.5°C (in October) to 31.2°C (in June), while minimum temperatures range from 12.6°C (in July) to 23.8°C (in January). Maximum temperatures range seasonally by 6.3°C and minimum temperatures by 11.2°C. <br /><br />The instrument mast is 23 meters tall. Heat, water vapour and carbon dioxide measurements are taken using the open-path eddy flux technique. Temperature, humidity, wind speed, wind direction, rainfall, incoming and reflected shortwave radiation and net radiation are measured above the canopy.<br />Ancillary measurements taken at the site include LAI, leaf-scale physiological properties (gas exchange, leaf isotope ratios, N and chlorophyll concentrations), vegetation optical properties and soil physical properties. Airborne based remote sensing (Lidar and hyperspectral measurements) was carried out across the transect in September 2008. <br /><br />This data is also available at http://data.ozflux.org.au .
 
Citation proposal
. .

Simple

Date ( Creation )
2008-01-01T00:00:00
Date ( Publication )
2013-11-28T00:04:38
Date ( Revision )
2021-05-27T00:00:00

  Publisher

  Author

  Author

  Co-author

Purpose
The purpose of the Daly Uncleared Flux station is to: <br /> Provide information as part of a larger network of flux stations established along the North Australian Tropical Transect (NATT) gradient, which extends ~1000km south from Darwin 12.5°S. <br /> Examine spatial patterns and processes of land-surface-atmosphere exchanges (radiation, heat, moisture, CO2 and other trace gasses) across scales from leaf to landscape scales within Australian savannas. <br /> Determine the climate and ecosystem characteristics (physical structure, species composition, physiological function) that drive spatial and temporal variations of carbon, water and energy fluxes from north Australian savanna. <br /> Quantify fluxes over woodland savanna. <br /> Provide longer term measurements for future projects. 
Credit
The site is managed by the University of Western Australia and Charles Darwin University. The flux station is part of the Australia OzFlux Network and the international FLUXNET Network. 
Status
On going  

  Point of contact

  Point of contact

Topic category
  • Climatology, meteorology, atmosphere
Description
Douglas River Daly River Esplanade Conservation area, approximately 60km south west of Pine Creek, Northern Territory. 
N
S
E
W


Time period
2008-01-012013-09-08 
Maintenance and update frequency
Biannually  
  • air temperature ,
  • downward heat flux at ground level in soil ,
  • Hukseflux HFP01 ,
  • eastward wind ,
  • ecosystem respiration ,
  • gross primary productivity of biomass expressed as carbon ,
  • magnitude of surface downward stress ,
  • mass concentration of carbon dioxide in air ,
  • mass concentration of water vapor in air ,
  • mole fraction of carbon dioxide in air ,
  • mole fraction of water vapor in air ,
  • ,
  • Daly Uncleared Flux Station
  • monin-obukhov length ,
  • net ecosystem exchange ,
  • net ecosystem productivity ,
  • northward wind ,
  • relative humidity ,
  • soil temperature ,
  • Campbell Scientific TCAV Averaging Soil Thermocouple Probe ,
  • specific humidity ,
  • specific humidity saturation deficit in air ,
  • surface air pressure ,
  • LI-COR LI-7500 ,
  • surface downwelling longwave flux in air ,
  • Kipp&Zonen CNR4 ,
  • surface downwelling shortwave flux in air ,
  • surface friction velocity ,
  • surface net downward radiative flux ,
  • surface upward flux of available energy ,
  • surface upward latent heat flux ,
  • surface upward mole flux of carbon dioxide ,
  • surface upward sensible heat flux ,
  • surface upwelling longwave flux in air ,
  • surface upwelling shortwave flux in air ,
  • thickness of rainfall amount ,
  • HyQuest Solutions CS700 ,
  • upward mole flux of carbon dioxide due inferred from storage ,
  • vertical wind ,
  • volume fraction of condensed water in soil ,
  • Campbell Scientific CS616 ,
  • water evapotranspiration flux ,
  • water vapor partial pressure in air ,
  • water vapor saturation deficit in air ,
  • wind from direction ,
  • Campbell Scientific CSAT3 ,
  • wind speed ,
GCMD Earth Science and Earth Science Services Keywords
  • BIOGEOCHEMICAL PROCESSES ,
  • LAND PRODUCTIVITY ,
  • EVAPOTRANSPIRATION ,
  • TERRESTRIAL ECOSYSTEMS ,
  • ATMOSPHERIC PRESSURE MEASUREMENTS ,
  • TURBULENCE ,
  • WIND SPEED ,
  • WIND DIRECTION ,
  • TRACE GASES/TRACE SPECIES ,
  • 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
Temporal Resolution
  • 1 minute - < 1 hour
ANZSRC Fields of Research
  • ATMOSPHERIC SCIENCES ,
  • ECOLOGICAL APPLICATIONS ,
  • Ecosystem Function ,
  • ENVIRONMENTAL SCIENCE AND MANAGEMENT ,
  • Environmental Monitoring ,
  • SOIL SCIENCES
  • Eddy Covariance,
  • AU-DaS,
  • woodland savanna
Title
Creative Commons Attribution 4.0 International Licence 
Alternate title
CC-BY 
Edition
4.0 
Website

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 
Title
Australian Government Security Classification System 
Edition date
2018-11-01T00:00:00  
Website

Classification
Unclassified  
Handling description
OFFICIAL (Australian Government Security Classification System) 
Language
English  
Character encoding
UTF8  
Distribution format
  • NetCDF

OnLine resource

Catalog for NetCDF files

OnLine resource
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

OnLine resource
Isaac, Peter et al., 2017. OzFlux data: network integration from collection to curation. Biogeosciences, 14(12). doi:10.5194/bg-14-2903-2017

Hierarchy level
Dataset  
Standalone quality report details
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 . 

mdb:MD_Metadata

Metadata identifier
urn:uuid / 83c3f46f-bd61-4b25-9010-5fea426228e4

Title
GeoNetwork UUID 

  Point of contact

Resource scope
Dataset  
Metadata linkage

Point-of-truth metadata URL

Date info ( Creation )
2008-11-12T00:00:00
Date info ( Revision )
2014-06-27T11:07:36
Title
ISO 19115.1:2015 Geographic information - Metadata - Fundamentals 
Edition
1.0 
Title
ISO 19115-3:2016 
Edition
1.0 

    Overviews

Provided by

Associated resources

Not available