Articles | Volume 30, issue 12
https://doi.org/10.5194/hess-30-4057-2026
https://doi.org/10.5194/hess-30-4057-2026
Research article
 | 
30 Jun 2026
Research article |  | 30 Jun 2026

Assessing deficiencies in remotely sensed actual evapotranspiration (AET): introducing AET signatures

Hansini Gardiya Weligamage, Keirnan Fowler, Margarita Saft, Tim Peterson, Dongryeol Ryu, and Murray C. Peel

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Addor, N., Nearing, G., Prieto, C., Newman, A. J., Le Vine, N., and Clark, M. P.: A Ranking of Hydrological Signatures Based on Their Predictability in Space, Water Resour. Res., 54, 8792–8812, https://doi.org/10.1029/2018WR022606, 2018. 
Araki, R., Branger, F., Wiekenkamp, I., and McMillan, H.: A signature-based approach to quantify soil moisture dynamics under contrasting land-uses, Hydrol. Process., 36, https://doi.org/10.1002/hyp.14553, 2022. 
Arndt, S., Hinko-Najera, N., and Griebel, A.: Wombat State Forest Flux Data Release 2024_v1, Version 2024_v1, Terrestrial Ecosystem Research Network [data set], https://doi.org/10.25901/nd2a-kh95, 2024. 
Avanzi, F., Rungee, J., Maurer, T., Bales, R., Ma, Q., Glaser, S., and Conklin, M.: Climate elasticity of evapotranspiration shifts the water balance of Mediterranean climates during multi-year droughts, Hydrol. Earth Syst. Sci., 24, 4317–4337, https://doi.org/10.5194/hess-24-4317-2020, 2020. 
Baker, J. C. A., Garcia-Carreras, L., Gloor, M., Marsham, J. H., Buermann, W., da Rocha, H. R., Nobre, A. D., de Araujo, A. C., and Spracklen, D. V.: Evapotranspiration in the Amazon: spatial patterns, seasonality, and recent trends in observations, reanalysis, and climate models, Hydrol. Earth Syst. Sci., 25, 2279–2300, https://doi.org/10.5194/hess-25-2279-2021, 2021. 
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Short summary
This study is the first to propose actual evapotranspiration (AET) signatures, which can be used to assess multiple aspects of AET dynamics across various temporal scales. As a demonstration, we applied AET signatures to evaluate two remotely sensed (RS) AET products against flux tower AET. The results reveal specific deficiencies in RS AET and provide guidance for selecting appropriate RS AET, including for modelling studies.
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