Remote Sensing | |
A Life-Size and Near Real-Time Test of Irrigation Scheduling with a Sentinel-2 Like Time Series (SPOT4-Take5) in Morocco | |
Michel Le Page5  Jihad Toumi1  Sa Khabba1  Olivier Hagolle5  Adrien Tavernier5  M. Hakim Kharrou2  Salah Er-Raki3  Mireille Huc5  Mohamed Kasbani5  Abdelilah El Moutamanni5  Mohamed Yousfi2  Lionel Jarlan5  Benjamin Koetz4  Zoltan Vekerdy4  Massimo Menenti4  Diego Fernández-Prieto4  | |
[1] LMME, Faculté des Sciences Semlalia, Université Cadi Ayyad de Marrakech, Marrakech 40000, Morocco; E-Mails:;ORMVAH, Office Régional de Mise en Valeur Agricole du Haouz, Marrakech 40000, Morocco; E-Mails:;LP2M2E, Faculté des Sciences et Techniques, Université Cadi Ayyad de Marrakech, Marrakech 40000, Morocco; E-Mail:CESBIO, Unité Mixte de Recherche (CNRS, UPS, CNES, IRD), Toulouse 31000, France;;CESBIO, Unité Mixte de Recherche (CNRS, UPS, CNES, IRD), Toulouse 31000, France; E-Mails: | |
关键词: irrigation; scheduling; remote sensing; winter wheat; near real-time; evapotranspiration; semi-arid areas; Sentinel-2; SPOT4 (Take5); | |
DOI : 10.3390/rs61111182 | |
来源: mdpi | |
【 摘 要 】
This paper describes the setting and results of a real-time experiment of irrigation scheduling by a time series of optical satellite images under real conditions, which was carried out on durum wheat in the Haouz plain (Marrakech, Morocco), during the 2012/13 agricultural season. For the purpose of this experiment, the irrigation of a reference plot was driven by the farmer according to, mainly empirical, irrigation scheduling while test plot irrigations were being managed following the FAO-56 method, driven by remote sensing. Images were issued from the SPOT4 (Take5) data set, which aimed at delivering image time series at a decametric resolution with less than five-day satellite overpass similar to the time series ESA Sentinel-2 satellites will produce in the coming years. With a Root Mean Square Error (RMSE) of 0.91mm per day, the comparison between daily actual evapotranspiration measured by eddy-covariance and the simulated one is satisfactory, but even better at a five-day integration (0.59mm per day). Finally, despite a chaotic beginning of the experiment—the experimental plot had not been irrigated to get rid of a slaking crust, which prevented good emergence—our plot caught up and yielded almost the same grain crop with 14% less irrigation water. This experiment opens up interesting opportunities for operational scheduling of flooding irrigation sectors that dominate in the semi-arid Mediterranean area.
【 授权许可】
CC BY
© 2014 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
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RO202003190019813ZK.pdf | 3171KB | download |