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Maximum Entropy Production Evapotranspiration for Australia 2003-2013

Evaporation, Transpiration, and Evapotranspiration Products for Australia based on the Maximum Entropy Production model (MEP). This record is an introduction of a method into the MEP algorithm of estimating the required model parameters over the entire continent of Australia through the use of pedotransfer function, soil properties and remotely sensed soil moisture data. The algorithm calculates the evaporation and transpiration over Australia on daily timescales at the 0.05 degree (5 km) resolution for 2003 – 2013. The MEP evapotranspiration (ET) estimates were validated using observed ET data from 20 Eddy Covariance (EC) flux towers across 8 land cover types in Australia and compared the MEP-ET at the EC flux towers with two other ET products over Australia; MOD16 and AWRA-L products. The MEP model outperformed the MOD16 and AWRA-L across the 20 EC flux sites, with average root mean square errors (RMSE), 8.21, 9.87 and 9.22 mm/8 days respectively. The average mean absolute error (MAE) for the MEP, MOD16 and AWRA-L were 6.21, 7.29 and 6.52 mm/8 days, the average correlations were 0.64, 0.57 and 0.61, respectively. The percentage bias of the MEP ET was within 20% of the observed ET at 12 of the 20 EC flux sites while the MOD16 and AWRA-L ET were within 20% of the observed ET at 4 and 10 sites respectively. The analysis showed that evaporation and transpiration contribute 38% and 62%, respectively, to the total ET across the study period which includes a significant part of the “millennium drought” period (2003 – 2009) in Australia. File naming conventions: E – Evaporation T – Transpiration ET – Evapotranspiration For the 8 day ET, Daily T and ET, the suffix nnn indicates day of year, for example: 001 for January 1, 145 for May 25 (leap year) or 26, etc. While for the daily E, the suffix is in the format mmdd (month,day) for example 0101 for January 1, 0525 for May 25.

Simple

Identification info

Date (Creation)
2019-02-20
Date (Publication)
2022-04-30
Date (Revision)
2025-12-10
Edition
2

Identifier

Title
DataCite
Code
doi:10.25901/5CE795D313DB8
Codespace
http://dx.doi.org

Publisher

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

Author

Flinders University - Abiodun, Olanrewaju (Researcher)
Sturt Road, Bedford Park, South Australia, 5042, Australia
Bedford Park
South Australia
5042
Australia

Co-author

Flinders University - Batelaan, Okke ()
Sturt Road, Bedford Park, South Australia, 5042, Australia
Bedford Park
South Australia
5042
Australia

Co-author

Flinders University - Guan, Huade ()
Sturt Road, Bedford Park, South Australia, 5042, Australia
Bedford Park
South Australia
5042
Australia

Co-author

Georgia Institute of Technology - Wang, Jingfeng ()
North Avenue, Atlanta GA 30332, United States of America
Atlanta
GA
30332
United States of America
Website
https://www.tern.org.au/

Purpose
The aim of this research was to develop evaporation and transpiration products for Australia based on the maximum entropy production model (MEP).
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
Lanre Abiodun, Okke Batelaan, Huade Guan, Jingfeng Wang 2019; A Maximum Entropy Production evaporation and transpiration dataset at 0.05 degree across Australia for 2003-2013.
Status
Completed

Point of contact

Flinders University - Abiodun, Olanrewaju (Researcher)
Sturt Road, Bedford Park, South Australia, 5042, Australia
Sturt Road
Bedford Park
South Australia
5042
Australia
Topic category
  • Imagery base maps earth cover

Extent

Description
Continental Australia
N
S
E
W


Temporal extent

Time period
2003-01-01 2013-12-31
Maintenance and update frequency
Not planned
GCMD Science Keywords
  • EARTH SCIENCE
  • EVAPORATION
  • EVAPOTRANSPIRATION
  • MODELS
ANZSRC Fields of Research
  • Hydrology
  • Ecohydrology
  • Surface water hydrology
TERN Platform Vocabulary
  • Earth Observation Satellite
  • Terra
TERN Parameter Vocabulary
  • evapotranspiration
  • Millimetre
  • surface water evaporation flux
  • Millimetre
QUDT Units of Measure
  • Millimetre
  • Millimetre
GCMD Horizontal Resolution Ranges
  • 1 km - < 10 km or approximately .01 degree - < .09 degree
GCMD Temporal Resolution Ranges
  • Daily - < Weekly
Keywords (Discipline)
  • Transpiration
  • Maximum Entropy Production
  • Remote Sensing MODIS

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
Maximum Entropy Production Evapotranspiration for Australia 2003-2013

OnLine resource
landscapes:mep_evapotranspiration

Maximum Entropy Production Evapotranspiration for Australia 2003-2013

OnLine resource
ro-crate-metadata.json

Data quality info

Hierarchy level
Dataset
Other
The MEP evapotranspiration (ET) estimates were validated using observed ET data from 20 Eddy Covariance (EC) flux towers across 8 land cover types in Australia.

Report

Result

Statement
The percentage Bias of the MEP ET was within 20% of the observed ET at 12 of the 20 EC flux sites while the MOD16 and AWRA-L ET were within 20% of the observed ET at 4 and 10 sites respectively.

Resource lineage

Statement
The data sets were created using the Maximum Entropy Production Model with remote sensing data from MODIS as inputs
Hierarchy level
Dataset

Reference System Information

Reference system identifier
EPSG/EPSG:4326

Reference system type
Geodetic Geographic 2D

Metadata

Metadata identifier
urn:uuid/750f6ce3-30c2-41f2-9ccb-67bdaf7ef526

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/750f6ce3-30c2-41f2-9ccb-67bdaf7ef526

Point-of-truth metadata URL

Date info (Creation)
2019-02-20T00:00:00.000000+00:00
Date info (Revision)
2025-12-10T09:46:28.779123+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
Ecohydrology Hydrology Surface water hydrology
GCMD Science Keywords
EARTH SCIENCE EVAPORATION EVAPOTRANSPIRATION MODELS

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Associated resources

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