Proceedings of IAHS
Proceedings of IAHS
PIAHS
Articles | Volume 380
Articles | Volume 380
https://doi.org/10.5194/piahs-380-17-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/piahs-380-17-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 380
Post-conference publication
 | 
18 Dec 2018
Post-conference publication |  | 18 Dec 2018

Evapotranspiration and evaporation/transpiration partitioning with dual source energy balance models in agricultural lands

Gilles Boulet, Emilie Delogu, Sameh Saadi, Wafa Chebbi, Albert Olioso, Bernard Mougenot, Pascal Fanise, Zohra Lili-Chabaane, and Jean-Pierre Lagouarde

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Cited articles

Boulet, G., Mougenot, B., Lhomme, J.-P., Fanise, P., Lili-Chabaane, Z., Olioso, A., Bahir, M., Rivalland, V., Jarlan, L., Merlin, O., Coudert, B., Er-Raki, S., and Lagouarde, J.-P.: The SPARSE model for the prediction of water stress and evapotranspiration components from thermal infra-red data and its evaluation over irrigated and rainfed wheat, Hydrol. Earth Syst. Sci., 19, 4653–4672, https://doi.org/10.5194/hess-19-4653-2015, 2015. 
Kustas, W. P. and Norman, J. M.: Evaluation of soil and vegetation heat flux predictions using a simple two-source model with radiometric temperatures for partial canopy cover, Agr. Forest Meteorol., 94, 13–29, https://doi.org/10.1016/s0168-1923(99)00005-2, 1999. 
Merlin, O., Al Bitar, A., Rivalland, V., Beziat, P., Ceschia, E., and Dedieu, G.: An Analytical Model of Evaporation Efficiency for Unsaturated Soil Surfaces with an Arbitrary Thickness, J. Appl. Meteorol. Climatol., 50, 457–471, https://doi.org/10.1175/2010jamc2418.1, 2011. 
Saadi, S., Boulet, G., Bahir, M., Brut, A., Delogu, É., Fanise, P., Mougenot, B., Simonneaux, V., and Lili Chabaane, Z.: Assessment of actual evapotranspiration over a semiarid heterogeneous land surface by means of coupled low-resolution remote sensing data with an energy balance model: comparison to extra-large aperture scintillometer measurements, Hydrol. Earth Syst. Sci., 22, 2187–2209, https://doi.org/10.5194/hess-22-2187-2018, 2018. 
Schmugge, T. J.: Effect of texture on microwave emission from soils, IEEE T. Geosci. Remote, 18, 353–361, 1980. 
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Short summary
Mapping of transpiration T and evaporation E is crucial for assessing plant water use and plant water status at landscape scale. Dual-source energy balance models forced by thermal infrared observations provide separate estimates of E and T but rely on specific assumptions to get both terms from the sole surface temperature. We show here with a synthetic experiment that additional information is thus required, e.g. surface water content that can be derived from radar.
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