Hogg's Index

Hogg's Index, also known as the Spectral Indices or Spectral Ratio, is a measurement used in remote sensing to analyze the characteristics of land surfaces via satellite or aerial images. It involves calculating ratios between reflectance values at different wavelengths (colors) of light, which helps identify specific features like vegetation health, water bodies, or urban areas. By comparing these ratios, scientists can efficiently assess land use and environmental conditions without needing to examine each area physically. Hogg's Index is a useful tool for monitoring changes in the environment, land management, and planning efforts.