Medium-Resolution Mapping of Evapotranspiration at the Catchment Scale Based on Thermal Infrared MODIS Data and ERA-Interim Reanalysis over North Africa
Accurate quantification of evapotranspiration (ET) at the watershed scale remains an important research challenge for managing water resources in arid and semiarid areas. In this study, daily latent heat flux (LE) maps at the kilometer scale were derived from the two-source energy budget (TSEB) mode...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-10-01
|
| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/14/20/5071 |
| _version_ | 1797470062264713216 |
|---|---|
| author | Alhousseine Diarra Lionel Jarlan Saïd Khabba Michel Le Page Salah Er-Raki Riad Balaghi Soufyane Charafi Abdelghani Chehbouni Rafiq El Alami |
| author_facet | Alhousseine Diarra Lionel Jarlan Saïd Khabba Michel Le Page Salah Er-Raki Riad Balaghi Soufyane Charafi Abdelghani Chehbouni Rafiq El Alami |
| author_sort | Alhousseine Diarra |
| collection | DOAJ |
| description | Accurate quantification of evapotranspiration (ET) at the watershed scale remains an important research challenge for managing water resources in arid and semiarid areas. In this study, daily latent heat flux (LE) maps at the kilometer scale were derived from the two-source energy budget (TSEB) model fed by the MODIS leaf area index (LAI), land surface temperature (LST) products, and meteorological data from ERA-Interim reanalysis from 2001 to 2015 on the Tensift catchment (center of Morocco). As a preliminary step, both ERA-Interim and predicted LE at the time of the satellite overpass are evaluated in comparison to a large database of in situ meteorological measurements and eddy covariance (EC) observations, respectively. ERA-Interim compared reasonably well to in situ measurements, but a positive bias on air temperature was highlighted because meteorological stations used for the evaluation were mainly installed on irrigated fields while the grid point of ERA-Interim is representative of larger areas including bare (and hot) soil. Likewise, the predicted LE was in good agreement with the EC measurements gathered on the main crops of the region during 15 agricultural seasons with a correlation coefficient r = 0.70 and a reasonable bias of 30 W/m<sup>2</sup>. After extrapolating the instantaneous LE estimates to ET daily values, monthly ET was then assessed in comparison to monthly irrigation water amounts provided by the local agricultural office added to CRU precipitation dataset with a reasonable agreement; the relative error was more than 89% but the correlation coefficient r reached 0.80. Seasonal and interannual evapotranspiration was analyzed in relation to local climate and land use. Lastly, the potential use for improving the early prediction of grain yield, as well as detecting newly irrigated areas for arboriculture, is also discussed. The proposed method provides a relatively simple way for obtaining spatially distributed daily estimates of ET at the watershed scale, especially for not ungauged catchments. |
| first_indexed | 2024-03-09T19:31:29Z |
| format | Article |
| id | doaj.art-30ea728018df468cae42d59a3dfe1d21 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T19:31:29Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-30ea728018df468cae42d59a3dfe1d212023-11-24T02:18:43ZengMDPI AGRemote Sensing2072-42922022-10-011420507110.3390/rs14205071Medium-Resolution Mapping of Evapotranspiration at the Catchment Scale Based on Thermal Infrared MODIS Data and ERA-Interim Reanalysis over North AfricaAlhousseine Diarra0Lionel Jarlan1Saïd Khabba2Michel Le Page3Salah Er-Raki4Riad Balaghi5Soufyane Charafi6Abdelghani Chehbouni7Rafiq El Alami8Digital 4 Research Labs (D4R), Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, Ben Guerir 43150, MoroccoCentre d’Etudes Spatiales de la BIOsphère (CESBIO), 31400 Toulouse, FranceLMFE, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech 40000, MoroccoCentre d’Etudes Spatiales de la BIOsphère (CESBIO), 31400 Toulouse, FranceCenter for Remote Sensing Applications (CRSA), Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, Ben Guerir 43150, MoroccoNational Institute for Agronomic Research (INRA), Rabat 10000, MoroccoOffice Régional de Mise en Valeur Agricole du Haouz (ORMVAH), bd Hassan II Guéliz Marrakech, Marrakech 40000, MoroccoCenter for Remote Sensing Applications (CRSA), Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, Ben Guerir 43150, MoroccoDigital 4 Research Labs (D4R), Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, Ben Guerir 43150, MoroccoAccurate quantification of evapotranspiration (ET) at the watershed scale remains an important research challenge for managing water resources in arid and semiarid areas. In this study, daily latent heat flux (LE) maps at the kilometer scale were derived from the two-source energy budget (TSEB) model fed by the MODIS leaf area index (LAI), land surface temperature (LST) products, and meteorological data from ERA-Interim reanalysis from 2001 to 2015 on the Tensift catchment (center of Morocco). As a preliminary step, both ERA-Interim and predicted LE at the time of the satellite overpass are evaluated in comparison to a large database of in situ meteorological measurements and eddy covariance (EC) observations, respectively. ERA-Interim compared reasonably well to in situ measurements, but a positive bias on air temperature was highlighted because meteorological stations used for the evaluation were mainly installed on irrigated fields while the grid point of ERA-Interim is representative of larger areas including bare (and hot) soil. Likewise, the predicted LE was in good agreement with the EC measurements gathered on the main crops of the region during 15 agricultural seasons with a correlation coefficient r = 0.70 and a reasonable bias of 30 W/m<sup>2</sup>. After extrapolating the instantaneous LE estimates to ET daily values, monthly ET was then assessed in comparison to monthly irrigation water amounts provided by the local agricultural office added to CRU precipitation dataset with a reasonable agreement; the relative error was more than 89% but the correlation coefficient r reached 0.80. Seasonal and interannual evapotranspiration was analyzed in relation to local climate and land use. Lastly, the potential use for improving the early prediction of grain yield, as well as detecting newly irrigated areas for arboriculture, is also discussed. The proposed method provides a relatively simple way for obtaining spatially distributed daily estimates of ET at the watershed scale, especially for not ungauged catchments.https://www.mdpi.com/2072-4292/14/20/5071evapotranspirationTSEBMODISERA-Interimwatershed scale |
| spellingShingle | Alhousseine Diarra Lionel Jarlan Saïd Khabba Michel Le Page Salah Er-Raki Riad Balaghi Soufyane Charafi Abdelghani Chehbouni Rafiq El Alami Medium-Resolution Mapping of Evapotranspiration at the Catchment Scale Based on Thermal Infrared MODIS Data and ERA-Interim Reanalysis over North Africa Remote Sensing evapotranspiration TSEB MODIS ERA-Interim watershed scale |
| title | Medium-Resolution Mapping of Evapotranspiration at the Catchment Scale Based on Thermal Infrared MODIS Data and ERA-Interim Reanalysis over North Africa |
| title_full | Medium-Resolution Mapping of Evapotranspiration at the Catchment Scale Based on Thermal Infrared MODIS Data and ERA-Interim Reanalysis over North Africa |
| title_fullStr | Medium-Resolution Mapping of Evapotranspiration at the Catchment Scale Based on Thermal Infrared MODIS Data and ERA-Interim Reanalysis over North Africa |
| title_full_unstemmed | Medium-Resolution Mapping of Evapotranspiration at the Catchment Scale Based on Thermal Infrared MODIS Data and ERA-Interim Reanalysis over North Africa |
| title_short | Medium-Resolution Mapping of Evapotranspiration at the Catchment Scale Based on Thermal Infrared MODIS Data and ERA-Interim Reanalysis over North Africa |
| title_sort | medium resolution mapping of evapotranspiration at the catchment scale based on thermal infrared modis data and era interim reanalysis over north africa |
| topic | evapotranspiration TSEB MODIS ERA-Interim watershed scale |
| url | https://www.mdpi.com/2072-4292/14/20/5071 |
| work_keys_str_mv | AT alhousseinediarra mediumresolutionmappingofevapotranspirationatthecatchmentscalebasedonthermalinfraredmodisdataanderainterimreanalysisovernorthafrica AT lioneljarlan mediumresolutionmappingofevapotranspirationatthecatchmentscalebasedonthermalinfraredmodisdataanderainterimreanalysisovernorthafrica AT saidkhabba mediumresolutionmappingofevapotranspirationatthecatchmentscalebasedonthermalinfraredmodisdataanderainterimreanalysisovernorthafrica AT michellepage mediumresolutionmappingofevapotranspirationatthecatchmentscalebasedonthermalinfraredmodisdataanderainterimreanalysisovernorthafrica AT salaherraki mediumresolutionmappingofevapotranspirationatthecatchmentscalebasedonthermalinfraredmodisdataanderainterimreanalysisovernorthafrica AT riadbalaghi mediumresolutionmappingofevapotranspirationatthecatchmentscalebasedonthermalinfraredmodisdataanderainterimreanalysisovernorthafrica AT soufyanecharafi mediumresolutionmappingofevapotranspirationatthecatchmentscalebasedonthermalinfraredmodisdataanderainterimreanalysisovernorthafrica AT abdelghanichehbouni mediumresolutionmappingofevapotranspirationatthecatchmentscalebasedonthermalinfraredmodisdataanderainterimreanalysisovernorthafrica AT rafiqelalami mediumresolutionmappingofevapotranspirationatthecatchmentscalebasedonthermalinfraredmodisdataanderainterimreanalysisovernorthafrica |