NDWI (Sentinel 2 MSI): G=B3, NIR=B8 NBR = (NIR-SWIR)/(NIR+SWIR) The information about vegetationĬontained in the SWIR channel is unique. The spectral reflectance in the SWIR channel. The amount of water present in vegetation primarily affects This formula highlights the amount of water in water bodies.Īn alternate method of calculation uses the NIR and Short Wave Infrared (SWIR) channels. Is derived from the Near-Infrared (NIR) and Green (G)Ĭhannels. The Normalized Difference Water Index (NDWI) There are a couple of predefined options for NDVI, depending on which band Normalized difference between red and near infrared bands in an image. The NDVI is calculated by determining the ratio of red and near infraredīands from a remotely-sensed image on a per-pixel basis to use as the
Vegetation indicesĪre based on the observation that different surfaces reflect different Vegetation’s photosynthetic activity, or ‘greenness’. (NIR) and RED channels of remotely sensed imagery. (NDVI) is a commonly used vegetation indices derived from the Near-Infrared The user to choose between different analyses built into the Raster Calculator.
May choose to Add Predefined Formula, or Add Selected for Raster Calculation will show If more than one raster layer is loaded, the Select Layers window will appear.Ĭheck the raster layers to select the data for analysis.Ĭlick OK and the Set up Apply Formula Operation window