caa a22 4500 44586446X CHVBK 20180317145453.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s11119-010-9204-3 doi (NATIONALLICENCE)springer-10.1007/s11119-010-9204-3 Comparing narrow and broad-band vegetation indices to estimate leaf chlorophyll content in planophile crop canopies [Elektronische Daten] [M. Vincini, E. Frazzi] A comparison of the sensitivity of several broad- and narrow-band vegetation indices (VIs) to leaf chlorophyll content in planophile crop canopies is addressed by the analysis of a large synthetic dataset. Broad-band indices included classical slope-based VIs (i.e. NDVI—normalized difference VI and SR—simple ratio) and some indices incorporating green reflectance (i.e. Green NDVI, NIR/green ratio and the newly proposed CVI—chlorophyll vegetation index), whereas narrow-band indices included those specifically proposed to estimate leaf chlorophyll at the canopy scale (i.e. MCARI—modified chlorophyll absorption reflectance index, TCARI—transformed CARI, TCARI/OSAVI ratio—TCARI/optimized soil adjusted VI and REIP—red edge inflection position). Synthetic data were obtained from the coupled PROSPECT+SAILH leaf and canopy reflectance models in the direct mode. In addition to traditional regression-based statistics (coefficient of determination and root mean square error, RMSE), changes in sensitivity of a VI over the range of chlorophyll content were analyzed using a sensitivity function. The broad-band chlorophyll vegetation index outperformed the other VIs considered as a leaf chlorophyll estimator at the canopy scale, with the exception of the TCARI/OSAVI ratio for some soil conditions. Springer Science+Business Media, LLC, 2010 Remote sensing nationallicence Variable-rate fertilizer application nationallicence Vegetation indices nationallicence Vincini M. Università Cattolica del Sacro Cuore—Centro Ricerca Analisi Spaziale e Telerilevamento, via Emilia Parmense 84, 29100, Piacenza, Italy aut Frazzi E. Università Cattolica del Sacro Cuore—Centro Ricerca Analisi Spaziale e Telerilevamento, via Emilia Parmense 84, 29100, Piacenza, Italy aut Precision Agriculture Springer US; http://www.springer-ny.com 12/3(2011-06-01), 334-344 1385-2256 12:3<334 2011 12 11119 https://doi.org/10.1007/s11119-010-9204-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11119-010-9204-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vincini M. Università Cattolica del Sacro Cuore—Centro Ricerca Analisi Spaziale e Telerilevamento, via Emilia Parmense 84, 29100, Piacenza, Italy aut NATIONALLICENCE 700 1- Frazzi E. Università Cattolica del Sacro Cuore—Centro Ricerca Analisi Spaziale e Telerilevamento, via Emilia Parmense 84, 29100, Piacenza, Italy aut NATIONALLICENCE 773 0- Precision Agriculture Springer US; http://www.springer-ny.com 12/3(2011-06-01), 334-344 1385-2256 12:3<334 2011 12 11119 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer