Table 2 Landsat-8 Operational Land Imager (OLI), SPOT-5 multispectral (XS), and Sentinel-2 Multispectral Instrument (MSI) bands; wavelength intervals (λ); and indices used as predictors of forest structural attributes in this Minnesota, USA, study to quantify coniferous forest fuel using field data collected in 2015 and 2016. Indices include normalized difference vegetation index (NDVI; Rouse et al. 1974), shortwave infrared to near-infrared ratio (SWIR:NIR; Vogelmann and Rock 1988), and SWIR to visible ratio (SVR; Wolter et al. 2008). Equations for NDVI, SWIR:NIR, and SVR are shown using sensor-specific band numbers defined below each sensor column. Dashes (–) denote where SPOT-5 lacks an equivalent predictor band

From: Modeling sub-boreal forest canopy bulk density in Minnesota, USA, using synthetic aperture radar and optical satellite sensor data