Radiance vs. Reflectance • Particulates in the atmosphere attenuate the signal (light from the sun) • Terrain and feature structure very complex making it difficult to precisely model the path of light Radiance in W/M 2 Reported as DN in image
Radiance vs Reflectance • Particulates in the atmosphere attenuate the signal (light from the sun) • Terrain and feature structure very complex making it difficult to precisely model the path of light Radiance in W/M 2 Reported as DN in image irradiance exitance
Radiance vs Reflectance • Particulates in the atmosphere attenuate the signal (light from the sun) • Terrain and feature structure very complex making it difficult to precisely model the path of light Radiance in W/M 2 Reported as DN in image Reflectance irradiance exitance
Radiance vs Reflectance • Particulates in the atmosphere attenuate the signal (light from the sun) • Terrain and feature structure very complex making it difficult to precisely model the path of light Radiance in W/M 2 Reported as DN in image irradiance exitance Top of Atmosphere (TOA) Reflectance
Radiance vs Reflectance • Particulates in the atmosphere attenuate the signal (light from the sun) • Terrain and feature structure very complex making it difficult to precisely model the path of light Radiance in W/M 2 Reported as DN in image irradiance exitance Surface Reflectance (Holy Grail!) Top of Atmosphere (TOA) Reflectance