GEOG 111 Lecture Notes - Lecture 2: Spectral Resolution, Radiant Flux, Rayleigh Scattering
22 Oct 2020
School
Department
Course
Professor
Document Summary
Lecture 2: outline: electromagnetic energy (energy, source: electromagnetic radiation, transfer: interactions with atmosphere and ground, receiving: sensors. Wavelength is inversely proportional to wave frequency (energy) Energy-matter interactions in the atmosphere, at the study area, and at the remote sensor detector. Particles and gases in the atmosphere can affect the incoming light and radiation: scattering and. Absorption: rayleigh scattering, mie scattering, nonselective scattering. Absorption: molecules in the atmosphere to absorb energy at various wavelengths (ozone, co2, and. Water vapor are the 3 main atmospheric constituents which absorb radiation. These area of the spectrum which are not severely influenced by atmospheric absorption and thus are useful to remote sensors are called atmospheric windows (in white color below) The combined effect of atmospheric absorption and scattering reduce the amount of solar irradiance reaching the earth"s surface. Radiation that is not absorbed or scattered in the atmosphere can reach and interact with the earth"s surface.
