An Australian Algorithm for ET: SAM-ET

Yann Chemin, Muhammad Hafeez

Research output: Book chapter/Published conference paperConference paperpeer-review


Australian environmental conditions are unique. Evapotranspiration algorithms using RSdata created in other parts of the World need adaptation to successfully work in Australianconditions. A novel algorithm for calculating ET from remote sensing is being implementedwithin Australia, for Australian irrigation systems initially, where crop water consumption isa crucial part of the water ordering decision-making and financial flow.SAM-ET is an energy balance algorithm based on thermodynamic flux and radiationequilibrium within the Earth skin surface. It is being constantly developed and evaluated onwater related projects for several years. Large fields campaigns have continuously beencarried out to ascertain inputs and validate outputs. A comprehensive instrumentationsetup is also supporting the model development, with some of the most sophisticatedenergy balance related instrumentation set up in the paddocks directly.A conceptual description pertaining to some of the internal specifics, two-sourcesinitialization, constraints and energy balance convergence. Boundary conditions and dataworkflow are also commented. While the SAM-ET is still in refining process, some of theinternal uses have shown encouraging results to provide Australia with its ownevapotranspiration energy balance model. through our web service, meaning to real-timeprocessing.
Original languageEnglish
Title of host publicationARSPC
Subtitle of host publication15th Conference proceedings
Place of PublicationAustralia
Number of pages1
Publication statusPublished - 2010
EventAustralasian Remote Sensing and Photogrammetry Conference (ARSPC) - Alice Springs, NT, Australia
Duration: 13 Sep 201017 Sep 2010


ConferenceAustralasian Remote Sensing and Photogrammetry Conference (ARSPC)


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