Methodology family
Multispectral
Techniques based on a small number of discrete spectral bands, the workhorse of operational EO. Covers vegetation indices, ocean colour, and land-cover products that underpin the majority of commercial and governmental monitoring programmes.
Methodologies in multispectral
- Ocean colour / water-leaving radiance Retrieves chlorophyll-a concentration, CDOM, and suspended sediment from spectrally resolved water-leaving radiance; good for marine primary production, harmful algal bloom detection, and coastal water quality.
- Vegetation index mapping Derives vegetation health, density, and phenology indicators (NDVI, EVI, SAVI) from red and NIR band ratios; good for crop monitoring, deforestation alerts, and land cover change detection.
Cite or share