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Ashley Dene Wet FLUXNET Release 2026_r1 

Ver: 2026_r1
Status of Data: completed
Update Frequency: annually
Security Classification: unclassified
Record Last Modified: 2026-04-06
Viewed 0 times
Accessed 0 times
Dataset Created: 2026-03-27
Dataset Published: 2026-04-06
Data can be accessed from the following links:
HTTPPoint-of-truth metadata URLOPeNDAP2026_r1 FLUXNET Ashley Dene WetHTTPro-crate-metadata.json
How to cite this collection:
Hunt, J. & Laubach, J. (2026). Ashley Dene Wet FLUXNET Release 2026_r1. Version 2026_r1. Terrestrial Ecosystem Research Network. Dataset. https://dx.doi.org/10.25901/60yf-et36 
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 standard micrometeorological methods for the quality control and post-processing steps. The final, gap-filled product containing Net Ecosystem Exchange (NEE) partitioned into Gross Primary Productivity (GPP) and Ecosystem Respiration (ER) has been produced using the ONEFlux software as described in Pastorello et al. (2020). This data set has been produced as part of the FLUXNET Shuttle project.
Ashley Dene is a paired site, growing irrigated and non-irrigated lucerne Medicago sativa L.; until 2020, then converted to dairy pasture with rotational grazing. It is located on a research dairy station on the Mid-Canterbury plains, South Island, New Zealand, owned and managed by Lincoln University. The lucerne crops and the pivot-irrigation system were established in spring 2015. The flux sites began operating in 2015/16. The research is supported by the Endeavour Fund and the Strategic Science Investment Fund from New Zealand’s Ministry of Business, Innovation and Employment, and for the pasture phase also from the New Zealand Agricultural Greenhouse Gas Research Centre. 
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. 
Purpose
The purpose of the Ashley Dene Dry flux station is to examine the impact of land management practices on:
  • soil carbon stores
  • leaching of nitrates from the soil
  • net greenhouse gas emissions
  • ecosystem water use
 
Lineage
Data collected using standard eddy covariance and meteorological instrumentation on a 4m tower at the Ashley Dene Wet site. The data were quality controlled by the site Principle Investigator. Gap filling and partitioning has been done using the ONEFlux software package, see Pastorello et al. 2020, which is available at https://github.com/fluxnet/ONEFlux. 
Method DocumentationPastorello, G., Trotta, C., Canfora, E. et al. The FLUXNET2015 dataset and the ONEFlux processing pipeline for eddy covariance data. Sci Data 7, 225 (2020).ONEFlux
Procedure Steps

1. 

Data is measured using standard micro-meteorological instrumentation on a flux tower. 

2. 

Data is recorded on a data logger and is collected by the site PI. 

3. 

Data quality control and post-processing has been done by the site PI. 

4. 

Filtering for low-ustar conditions, gap filling and partitioning of NEE into GPP and ER are done using ONEFlux. 

Spatial Description
The Ashley Dene Wet flux tower was located at 30 km south-west of the city of Christchurch. 
Temporal Coverage
From 2015-07-01 to 2022-07-01 
Spatial Resolution

Data not provided.

Vertical Extent

Data not provided.

Data Quality Assessment Scope
The data have been quality controlled by the site PI using standard micro-meteorological methods.

If the data quality is poor, the meteorological data is filled from ERA5 reanalysis data and fluxes are filled using the Marginal Distribution Sampling method. Filled data can be identified by the Quality Controls flags in the dataset.

The ONEFlux software used to gap fill and partition this data set also applies a Median Absolute Deviation (MAD) filter to the carbon dioxide, latent heat and sensible heat before the gap filling step. 
Data Quality Report
Data not provided. 
Data Quality Assessment Outcome
No anomalous data detected after quality control. 
ANZSRC - FOR
Atmospheric sciences
Carbon sequestration science
Climate change impacts and adaptation
Climatology
Ecosystem function
Meteorology
Soil sciences
GCMD Sciences
ATMOSPHERE - AIR TEMPERATURE
ATMOSPHERE - EVAPOTRANSPIRATION
ATMOSPHERE - HUMIDITY
ATMOSPHERE - LATENT HEAT FLUX
ATMOSPHERE - LONGWAVE RADIATION
ATMOSPHERE - RAIN
ATMOSPHERE - SHORTWAVE RADIATION
ATMOSPHERE - VERTICAL WIND VELOCITY/SPEED
ATMOSPHERE - WATER VAPOR
ATMOSPHERE - WATER VAPOR PROCESSES
ATMOSPHERE - WIND DIRECTION PROFILES
BIOSPHERE - RESPIRATION RATE
CLIMATE INDICATORS - CARBON FLUX
CRYOSPHERE - SENSIBLE HEAT FLUX
LAND SURFACE - GROSS PRIMARY PRODUCTION (GPP)
LAND SURFACE - NET ECOSYSTEM CO2 EXCHANGE (NEE)
LAND SURFACE - SENSIBLE HEAT FLUX
LAND SURFACE - SOILS
Horizontal Resolution
250 meters - < 500 meters
Parameters
air temperature
downward heat flux at ground level in soil
ecosystem respiration
gross primary productivity
lateral component of wind speed
longitudinal component of wind speed
magnitude of surface downward stress
mass concentration of water vapor in air
mole fraction of carbon monoxide in dry air
mole fraction of water vapor in air
Monin-Obukhov length
net ecosystem exchange
net ecosystem productivity
net primary productivity of biomass expressed as carbon accumulated in miscellaneous living matter
relative humidity
soil temperature
surface air pressure
surface downwelling longwave flux in air
surface downwelling shortwave flux in air
surface friction velocity
surface net downward radiative flux
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
volume fraction of condensed water in soil
wind from direction
wind speed
Temporal Resolution
1 minute - < 1 hour
Topic
climatologyMeteorologyAtmosphere
environment
User Defined
FLUXNET ID
NZ-ADw
Author
Hunt, John
Laubach, Johannes
Contact Point
Laubach, Johannes
Hunt, John
Principal Investigator
Hunt, John
Publisher
Terrestrial Ecosystem Research Network
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Please advise any work or publications that use this data via the online form at https://www.tern.org.au/research-publications/#reporting 
Please cite this dataset as {Author} ({PublicationYear}). {Title}. {Version, as appropriate}. Terrestrial Ecosystem Research Network. Dataset. {Identifier}. 

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