Montes C., Jacob Frédéric. (2017). Comparing Landsat-7 ETM+ and ASTER Imageries to estimate daily evapotranspiration within a Mediterranean vineyard watershed. IEEE Geoscience and Remote Sensing Letters, 14 (3), p. 459-463. ISSN 1545-598X.
Titre du document
Comparing Landsat-7 ETM+ and ASTER Imageries to estimate daily evapotranspiration within a Mediterranean vineyard watershed
Année de publication
Montes C., Jacob Frédéric
IEEE Geoscience and Remote Sensing Letters, 2017,
14 (3), p. 459-463 ISSN 1545-598X
We compared the capabilities of Landsat-7 Enhanced Thematic Mapper Plus (ETM+) and Advanced Space-borne Thermal Emission and Reflection Radiometer (ASTER) imageries for mapping daily evapotranspiration (ET) within a Mediterranean vineyard watershed. We used Landsat and ASTER data simultaneously collected on four dates in 2007 and 2008, along with the simplified surface energy balance index (S-SEBI) model. We used previously ground-validated good quality ASTER estimates as reference, and we analyzed the differences with Landsat retrievals in light of the instrumental factors and methodology. Although Landsat and ASTER retrievals of S-SEBI inputs were different, estimates of daily ET from the two imageries were similar. This is ascribed to the S-SEBI spatial differencing in temperature, and opens the path for using historical Landsat time series over vineyards.
Plan de classement
Fonds IRD [F B010069357]