Remote estimation of crop and grass chlorophyll and nitrogen content using red-edge bands on Sentinel-2 and -3

► We studied optimal Sentinel band setting for so-called red-edge chlorophyll index. ► We focused on retrieving canopy chlorophyll and N content. ► The upcoming ESA Sentinel-2 (and -3) bands around 705 nm and 740 nm are critical. ► Red-edge bands on Sentinel-2 (20 m resolution) are important for agriculture.