Spectral Resolution

Spectral resolution is about wavelength detail rather than spatial detail. A sensor with more bands, or narrower bands, can separate materials that look similar in broad bands.

Higher spectral resolution can improve tasks like crop type discrimination, mineral mapping, and water quality estimation. The tradeoff is often larger data volumes and sometimes lower signal-to-noise in very narrow bands.

When comparing sensors, check the band definitions and not just the count. Two sensors can have the same number of bands but measure different parts of the spectrum.