What range of wavelengths defines the red band?

The red band is defined by wavelengths in the range of 0.6 to 0.7 micrometers, which corresponds to the visible light spectrum where red light is found. This specific range is important in remote sensing and various applications of geographic information systems, where different wavelengths are used to analyze surface materials, monitor vegetation, and assess land cover.

In the electromagnetic spectrum, the visible light portion ranges from about 0.4 micrometers (violet) to about 0.7 micrometers (red). The red band is crucial for distinguishing features in images and is commonly used in vegetation index calculations, which are important in environmental monitoring.

The other ranges mentioned do not correspond to red wavelengths. The range of 0.4-0.5 micrometers includes blue light, the range of 0.5-0.6 micrometers includes green light, and the range of 0.3-0.4 micrometers corresponds to ultraviolet light. Each of these bands is associated with different aspects of light and has distinct uses in both photography and remote sensing. Therefore, the correct identification of the red band as falling within the 0.6-0.7 micrometers range is critical for accurate