ARS | Publication request: Energy fluxes estimation in a juniper tree area of the Donana biological reserve through TSEB method and Landsat-5TM imagery

Submitted to: Meeting Proceedings
Publication Type: Proceedings
Publication Acceptance Date: May 30, 2011
Publication Date: February 7, 2012
Citation: Cristobal, J., Kustas, W.P., Anderson, M.C., Infante, J.M., Diaz-Delgado, R. 2012. Energy fluxes estimation in a juniper tree area of the Donana biological reserve through TSEB method and Landsat-5TM imagery. Proceedings of Forests and Climate Change. p. 344.

Technical Abstract: Energy fluxes computing (actual evapotranspiration, net radiation, sensible heat and soil heat flux) are essential to improve the knowledge of the hydrological cycle, especially in natural vegetation covers. In this paper we present the first results of the energy fluxes modeling by means of the TSEB model and using five Landsat-5 TM and Landsat-7 ETM + in 2010, in an experimental plot of juniper tree of the Doñana Biological Reserve and the validation with Eddy-Covariance data. TSEB method showed acceptable results in the measurement of the different energy fluxes taking into account the high heterogeneity of this type of vegetation. In the case of actual evapotranspiration, net radiation, sensible heat flux and soil heat flux was obtained an average RMSE of 60, 42, 60 and 53 W•m-2, respectively. Future improvements in leaf area index determination and the inclusion of more images and Eddy-Covariance stations would help implementing and improving the TSEB model in this type of vegetation.