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Comparison of Earth observing-1 ALI and Landsat ETM+ for crop identification and yield prediction in Mexico / D.B. Lobell in IEEE Transactions on geoscience and remote sensing, vol 41 n° 6 (June 2003)

Public [article]  inIEEE Transactions on geoscience and remote sensing > vol 41 n° 6 (June 2003) . - pp 1277 - 1282 Titre : Comparison of Earth observing-1 ALI and Landsat ETM+ for crop identification and yield prediction in Mexico Type de document : Article/Communication Auteurs : D.B. Lobell, Auteur ; Gregory P. Asner, Auteur Année de publication : 2003 Article en page(s) : pp 1277 - 1282 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s) [Termes descripteurs IGN] agriculture de précision [Termes descripteurs IGN] analyse comparative [Termes descripteurs IGN] bande spectrale [Termes descripteurs IGN] blé (céréale) [Termes descripteurs IGN] étalonnage des données [Termes descripteurs IGN] image EO1-ALI [Termes descripteurs IGN] image Landsat-ETM+ [Termes descripteurs IGN] maïs (céréale) [Termes descripteurs IGN] Mexique [Termes descripteurs IGN] photo-interprétation [Termes descripteurs IGN] réflectance végétale [Termes descripteurs IGN] rendement agricole Résumé : (Auteur) This paper presents a comparison of Earth Observing 1 (EO-1) Advanced Land Imager (ALI) and Landsat-7. Enhanced Thematic Mapper Plus (ETM+) images collected over agricultural region in northwest Mexico. Across 115 fields a range of cover types, radiance measurements collected by ALI were within 3% of ETM+ for all five common bands. Crop discrimination was significantly improved with ALI compared ETM+, with an increase from 85% to 95% accuracy for distinguishing maize from wheat fields. This improvement was attributed to the greater SNR in ALI, as well as the unique information content of ALI band 4p (0.84-0.89 um), which may be to sensitivity to canopy water content. Yield predictions from reflectance-calibrated data did not reveal significant differences between the sensors. The greatest distinction between ALI and ETM+ was observed in the panchromatic band, with ALI providing more detailed information on inter and intrafield radiance differences, which show promise for precision agriculture applications. We conclude that ALI meets or exceeds ETM+ performance for agricultural applications evaluated here, thus providing a plausible option for continuity of the valuable Landsat record. Numéro de notice : A2003-215 Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22511 [article]

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