Tél. : 01.69.08.39.83
E-mail :
Role
I’m a postdoc researcher in the MOSAIC team where I assimilate remote sensing data into the ORCHIDEE land surface model to better constrain the carbon-energy-water cycles.
Research Topics
Multi-scale modeling of water and surface energy balance.
Assimilation of remote sensing data (Land Surface Temperature) into the ORCHIDEE land surface model.
Evaluation of impacts of land cover products on the surface-atmosphere interactions as part of ESA Climate Change Initiative projects:
Education
2016 – 2019
PhD in Hydrology, Continental Surfaces and Interfaces CESBIO – University Paul Sabatier Toulouse III. France
Thesis: Monitoring of water resources in crops irrigated by optical/thermal multi-spectral remote sensing
2007 – 2013
Renewable Natural Resources Engineer. University of Chile – Faculty of Agronomy. Santiago, Chile
Research Positions
2021-2022
Postdoc researcher at CESBIO/CNRS (Toulouse, France) in the assimilation of observations (in-situ and remote sensing data) for hydrological monitoring at different scales for ecosystems and water resources management: estimation of actual irrigation.
Oct-Dec 2020
Research assistant at the Laboratory for the Analysis of the Biosphere (LAB, University of Chile), where I studied the components of the water cycle in a Patagonian basin, Chile.
2012-2016
Research assistant at the LAB (University of Chile), where I participated in several projects on the modeling of water and energy cycles.
Scientific Publications
Olivera-Guerra, L.-E., C. Ottlé, N. Raoult, P. Peylin. 2025. Assimilating ESA CCI land surface temperature into the ORCHIDEE land surface model: insights from a multi-site study across Europe. Hydrology and Earth System Sciences, 29, 261–290, https://doi.org/10.5194/hess-29-261-2025.
Lenczuk, L., Olivera-Guerra, L.-E., Klos, A., Bogusz, J. 2024. On the ability to study regional hydrometeorological changes using GPS and GRACE measurements. Progress in Earth and Planetary Science, 11, 63, https://doi.org/10.1186/s40645-024-00665-4
Laluet, P., Olivera-Guerra, L., Altés, V., Rivalland, V., Jeantet, A., Tournebize, J., Cenobio-Cruz, O., Barella-Ortiz, A., Quintana-Seguí, P., Villar, J. M., and Merlin, O. 2024. Drainage assessment of irrigation districts: on the precision and accuracy of four parsimonious models. Hydrology and Earth System Sciences, 28, 3695–3716, https://doi.org/10.5194/hess-28-3695-2024.
P. Laluet, L. Olivera-Guerra, V. Altés, G. Paolini, N.Ouaadi, V. Rivalland, L. Jarlan, JM Villar, O. Merlin. 2024. Retrieving the irrigation actually applied at district scale: assimilating high-resolution Sentinel-1-derived soil moisture data into a FAO-56-based model. Agricultural Water Management, 293, 108704, https://doi.org/10.1016/j.agwat.2024.108704.
L. Olivera-Guerra, P. Laluet, V. Altés, C. Ollivier, Y. Pageot, G. Paolini, E. Chavanon, V. Rivalland, G. Boulet, JM Villar, O. Merlin. 2023. Modeling actual irrigation water use regimes at district scale: application to the FAO-56 dual crop coefficient method. Agricultural Water Management, 278, 1081119, https://doi.org/10.1016/j.agwat.2022.108119.
P. Laluet, L. Olivera-Guerra, V. Rivalland, V Simonneaux, J Inglada, J. Bellvert, S. Er-Raki, O. Merlin. 2023. A sensitivity analysis of the FAO-56 dual crop coefficient model for estimating crop evapotranspiration and drainage in various field conditions. Environmental Modelling & Software, 160, 105608, https://doi.org/10.1016/j.envsoft.2022.105608.
L. Olivera-Guerra, M. Quintanilla, I. Moletto, E. Pichuante, C. Zamorano-Elgueta, C. Mattar. 2022. Water dynamics over a Western Patagonian watershed: land surface changes and human factors. Science of the Total Environment, 804, 150221, https://doi.org/10.1016/j.scitotenv.2021.150221.
L. Olivera-Guerra, O. Merlin, S. Er-Raki. 2020. Irrigation retrieval from Landsat optical/thermal data integrated into a crop water balance model. Remote Sensing of Environment, 239, 111627, https://doi.org/10.1016/j.rse.2019.111627.
L. Olivera-Guerra, O. Merlin, S. Er-Raki, S. Khabba, M. J. Escorihuela. 2018. Estimating the water budget components of irrigated crops: Combining the FAO-56 dual crop coefficient with surface temperature and vegetation index data. Agricultural Water Management, 208, 120–131, https://doi.org/10.1016/j.agwat.2018.06.014.
O. Merlin, L. Olivera-Guerra, B. Aït Hssaine, A. Amazirh, Y. Malbéteau, Z. Rafi, Y. Ezzahar, P. Gentine, S. Khabba, S. Gascoin, S. Er-Raki. 2018. A phenomenological model of soil evaporative efficiency using surface soil moisture and temperature data. Agricultural and Forest Meteorology, 256–257, 501–515, https://doi.org/10.1016/j.agrformet.2018.04.010.
L. Olivera-Guerra, C. Mattar, O. Merlin, C. Durán-Alarcón, A. Santamaría-Artigas, R. Fuster. 2017. An operational method for the disaggregation of land surface temperature to estimate actual evapotranspiration in the arid region of Chile. ISPRS Journal of Photogrammetry and Remote Sensing, 128, 170–181, https://doi.org/10.1016/j.isprsjprs.2017.03.014.
L. Olivera-Guerra, C. Mattar, and M. Galleguillos. 2014. Estimation of real evapotranspiration and its variation in Mediterranean landscapes of central-southern Chile. International Journal of Applied Earth Observation and Geoinformation, 28, 160–169, https://doi.org/10.1016/j.jag.2013.11.012.
Fellowship
2016-2019
Chilean state (ANID) academic excellence scholarship for a Phd’s degree abroad
Teaching
2024
Lecturer. Master in Remote Sensing. Biophysical Modelling Module, Universidad Mayor. Santiago, Chile.
2012, 2016
2009-2013
Teaching assistant for the postgraduate Diploma in Applied Geomatics at the University of Chile: Physical fundamentals of remote sensing and Thermal remote sensing modules.
Teaching assistant in several courses within the Renewable Natural Resources Engineering program at the University of Chile, including Physics, Calculus, Algebra, GIS, Remote Sensing.