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Latent and Sensible Heat Flux for Australia by Scaling Flux Tower Data 2000 to 2023

This dataset comprises spatially and temporally dynamic estimates of the monthly latent heat flux (λE) and sensible heat flux (H) for all of Australia. The available energy (A, being net radiation [Rn] less the gound heat flux [G]) can be obtained by adding the λE and H datasets provided. Energy variables have been provided as hydrological equivalent units of depth, normalised to daily rates (mm/d). TERN OzFlux Surface Energy Balance (SEB) data were used to scale MODIS-based covariates of surface temperature less air temperature (Ts – Ta) and Rn using a Spatial and Temporal General Linear Model (ST-GLM) to third order. The ST-GLM SEB model was implemented across all of Australia on a 0.005° spatial grid (~ 500 m) on a monthly timestep from March 2000 through June 2023. Coefficients of the model were determined from the OzFlux network of eddy covariance flux tower data. Three flux tower sites were used to independently validate the accuracy of the model, being Calperum, SA, Howard Springs, NT, and Tumbarumba, NSW. The mean absolute difference (MAD) for λE, H and A was estimated as: 0.37, 0.39 and 0.34 mm/d, respectively. The relative errors determined by the MAD percentage (MADP) for λE, H, and A were estimated to be: 16%, 26%, and 9%, respectively. This dataset represents a new pathway for operational regional- to global-scale estimation of dynamic SEB variables.

Simple

Identification info

Date (Creation)
2023-06-30
Date (Publication)
2023-08-20
Date (Revision)
2025-12-10
Edition
1

Publisher

Terrestrial Ecosystem Research Network
Building 1019, 80 Meiers Rd
Indooroopilly
QLD
4068
Australia
+61 7 3365 9097

Author

CSIRO Environment - Van Niel, Thomas G ()
Clunies Ross Street, Black Mountain, 2601, Australian Capital Territory, Australia
Black Mountain
Australian Capital Territory
2601
Australia
Website
https://www.tern.org.au/

Purpose
Managing and understanding water resources requires data on latent heat flux (λE) dynamics across climatic zones at scales from regions to continents in both space and time. Large-scale dynamic λE is not directly observed, however, and hence using remote sensing approaches to scale point flux tower measurements may be a solution to provide the required spatially and temporally dynamic information. The interaction between λE and the sensible heat flux (H) describes the partitioning of the available energy (A) and can provide important context for soil water dynamics and is thus a key to understanding how an ecosystem will use water and respond to heat stress. Having spatially and temporally dynamic estimates of λE and H for all of Australia means this data source can be used to model the water and energy dynamics of any ecosystem, catchment, or land management unit in Australia.
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.
Status
Completed

Point of contact

CSIRO Environment - Van Niel, Thomas G ()
Clunies Ross Street, Black Mountain, 2601, Australian Capital Territory, Australia
Clunies Ross Street
Black Mountain
Australian Capital Territory
2601
Australia

Spatial resolution

Angular sampling measure
0.005
Topic category
  • Environment

Extent

Description
Australia.
N
S
E
W


Temporal extent

Time period
2000-03-01 2023-05-30
Maintenance and update frequency
Not planned
GCMD Science Keywords
  • LATENT HEAT FLUX
  • SENSIBLE HEAT FLUX
  • NET RADIATION
  • WATER MANAGEMENT
ANZSRC Fields of Research
  • Surface water hydrology
  • Agricultural hydrology
  • Agroforestry
  • Agricultural land management
  • Forestry fire management
TERN Platform Vocabulary
  • Earth Observation Satellite
TERN Parameter Vocabulary
  • air temperature
  • Kelvin per Kelvin
  • surface temperature
  • Kelvin per Kelvin
QUDT Units of Measure
  • Kelvin per Kelvin
  • Kelvin per Kelvin
GCMD Horizontal Resolution Ranges
  • 500 meters - < 1 km
GCMD Temporal Resolution Ranges
  • Monthly - < Annual

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
Linkage
https://w3id.org/tern/static/cc-by/88x31.png

Title
Creative Commons Attribution 4.0 International Licence
Alternate title
CC-BY
Edition
4.0
Website
https://creativecommons.org/licenses/by/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

Terrestrial Ecosystem Research Network
80 Meiers Road, Indooroopilly, Queensland, 4068, Australia
Indooroopilly
Queensland
4068
Australia
OnLine resource
Latent and sensible heat flux for Australia by scaling flux tower data 2000 to 2023

OnLine resource
heat_flux

Latent and Sensible Heat Flux for Australia by Scaling Flux Tower Data 2000 to 2023

OnLine resource
Landscape Data Visualiser - Latent and Sensible Heat Flux for Australia by Scaling Flux Tower Data 2000 to 2023

OnLine resource
ro-crate-metadata.json

Data quality info

Hierarchy level
Dataset
Abstract
PlaceHolder Text = Name of the report

Reference System Information

Reference system identifier
EPSG/EPSG:4326

Reference system type
Geodetic Geographic 2D

Metadata

Metadata identifier
urn:uuid/c2ee40f0-4bd1-49a6-8880-31c9054a3675

Title
TERN GeoNetwork UUID

Language
English
Character encoding
UTF8

Point of contact

Terrestrial Ecosystem Research Network
Building 1019, 80 Meiers Rd
Indooroopilly
QLD
4068
Australia
+61 7 3365 9097

Type of resource

Resource scope
Dataset
Metadata linkage
https://geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/c2ee40f0-4bd1-49a6-8880-31c9054a3675

Point-of-truth metadata URL

Date info (Creation)
2023-06-29T00:00:00.000000+00:00
Date info (Revision)
2025-12-10T10:32:47.264468+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

Identifier

Code
10.5281/zenodo.5652221
Website
https://github.com/ternaustralia/TERN-ISO19115/releases/tag/v1.0

 
 

Overviews

Spatial extent

N
S
E
W


Keywords

ANZSRC Fields of Research
Agricultural hydrology Agricultural land management Agroforestry Forestry fire management Surface water hydrology
GCMD Science Keywords
LATENT HEAT FLUX NET RADIATION SENSIBLE HEAT FLUX WATER MANAGEMENT

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Associated resources

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