Utilizing Remote Sensing to Quantify Evapotranspiration: A Case Study of the Saiss Basin (Morocco)
In areas highly affected by drought in a changing climate, evapotranspiration (ET) becomes a significant parameter affecting soils and vegetation. ET estimation on a large scale remains a problem in understanding the hydrologic system; it is complicated over heterogeneous land use and land cover. Ho...
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EDP Sciences
2025-01-01
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| Series: | E3S Web of Conferences |
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| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/07/e3sconf_errachidia2024_04022.pdf |
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| author | Oumou Abdellah Essahlaoui Ali Khrabcha Abdelali Essahlaoui Narjisse Alitane Abdennabi Kassou Amina El Hafyani Mohammed Van Rompaey Anton Gobin Anne |
| author_facet | Oumou Abdellah Essahlaoui Ali Khrabcha Abdelali Essahlaoui Narjisse Alitane Abdennabi Kassou Amina El Hafyani Mohammed Van Rompaey Anton Gobin Anne |
| author_sort | Oumou Abdellah |
| collection | DOAJ |
| description | In areas highly affected by drought in a changing climate, evapotranspiration (ET) becomes a significant parameter affecting soils and vegetation. ET estimation on a large scale remains a problem in understanding the hydrologic system; it is complicated over heterogeneous land use and land cover. However, the availability of remote sensing imagery and local weather data has made ET mapping possible through the application of models. In this study, the METRIC model was applied using Landsat satellite imagery and climatic data. This involves resolving the surface energy balance equation by calculating net radiation, soil heat flux, and sensible heat flux. Two satellite images were used at a resolution of 15m: one for January as a wet season and another for July as a dry period. ET ranges between 2 and 12 mm/day. Higher values are estimated during the dry period, and lower values are attributed to the wet period. Furthermore, water bodies and vegetation are characterized by significant ET compared to bare soils and urbanized areas. The comparison of METRIC ET and reference ET showed a strong correlation with an R², RMSE, and MAE of 0.68, 1.0, and 0.78, respectively. This study can assist managers in their water and agricultural adaptation strategies against climate change. |
| format | Article |
| id | doaj-art-4061ba802d7f4f969b8c753b27366b59 |
| institution | Kabale University |
| issn | 2267-1242 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj-art-4061ba802d7f4f969b8c753b27366b592025-02-05T10:49:24ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016070402210.1051/e3sconf/202560704022e3sconf_errachidia2024_04022Utilizing Remote Sensing to Quantify Evapotranspiration: A Case Study of the Saiss Basin (Morocco)Oumou Abdellah0Essahlaoui Ali1Khrabcha Abdelali2Essahlaoui Narjisse3Alitane Abdennabi4Kassou Amina5El Hafyani Mohammed6Van Rompaey Anton7Gobin Anne8Laboratory of Geoengineering and Environment, Research Group “Water Sciences and Environment Engineering”, Department of Geology, Faculty of Sciences, Moulay Ismail UniversityLaboratory of Geoengineering and Environment, Research Group “Water Sciences and Environment Engineering”, Department of Geology, Faculty of Sciences, Moulay Ismail UniversityLaboratory of Geoengineering and Environment, Research Group “Water Sciences and Environment Engineering”, Department of Geology, Faculty of Sciences, Moulay Ismail UniversityLaboratory of Geoengineering and Environment, Research Group “Water Sciences and Environment Engineering”, Department of Geology, Faculty of Sciences, Moulay Ismail UniversityLaboratory of Geoengineering and Environment, Research Group “Water Sciences and Environment Engineering”, Department of Geology, Faculty of Sciences, Moulay Ismail UniversityGeo-Resource, Geo-Environment and Oasis Geological Heritage Research Group, Engineering Sciences and Techniques Laboratory, Geosciences Department, Faculty of Sciences and Techniques, Moulay Ismail UniversityNational Institute for Scientific and Technological Research in Water, University Ibn Zohr - Agadir ·Geography and Tourism Research Group, Department Earth and Environmental ScienceDivision of Soil and Water Management, Department of Earth and Environmental Sciences, Faculty of BioScience Engineering, Katholieke Universiteit LeuvenIn areas highly affected by drought in a changing climate, evapotranspiration (ET) becomes a significant parameter affecting soils and vegetation. ET estimation on a large scale remains a problem in understanding the hydrologic system; it is complicated over heterogeneous land use and land cover. However, the availability of remote sensing imagery and local weather data has made ET mapping possible through the application of models. In this study, the METRIC model was applied using Landsat satellite imagery and climatic data. This involves resolving the surface energy balance equation by calculating net radiation, soil heat flux, and sensible heat flux. Two satellite images were used at a resolution of 15m: one for January as a wet season and another for July as a dry period. ET ranges between 2 and 12 mm/day. Higher values are estimated during the dry period, and lower values are attributed to the wet period. Furthermore, water bodies and vegetation are characterized by significant ET compared to bare soils and urbanized areas. The comparison of METRIC ET and reference ET showed a strong correlation with an R², RMSE, and MAE of 0.68, 1.0, and 0.78, respectively. This study can assist managers in their water and agricultural adaptation strategies against climate change.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/07/e3sconf_errachidia2024_04022.pdfmapping evapotranspirationmetric modelsaiss basin |
| spellingShingle | Oumou Abdellah Essahlaoui Ali Khrabcha Abdelali Essahlaoui Narjisse Alitane Abdennabi Kassou Amina El Hafyani Mohammed Van Rompaey Anton Gobin Anne Utilizing Remote Sensing to Quantify Evapotranspiration: A Case Study of the Saiss Basin (Morocco) E3S Web of Conferences mapping evapotranspiration metric model saiss basin |
| title | Utilizing Remote Sensing to Quantify Evapotranspiration: A Case Study of the Saiss Basin (Morocco) |
| title_full | Utilizing Remote Sensing to Quantify Evapotranspiration: A Case Study of the Saiss Basin (Morocco) |
| title_fullStr | Utilizing Remote Sensing to Quantify Evapotranspiration: A Case Study of the Saiss Basin (Morocco) |
| title_full_unstemmed | Utilizing Remote Sensing to Quantify Evapotranspiration: A Case Study of the Saiss Basin (Morocco) |
| title_short | Utilizing Remote Sensing to Quantify Evapotranspiration: A Case Study of the Saiss Basin (Morocco) |
| title_sort | utilizing remote sensing to quantify evapotranspiration a case study of the saiss basin morocco |
| topic | mapping evapotranspiration metric model saiss basin |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/07/e3sconf_errachidia2024_04022.pdf |
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