GEOG 2050 : Geog 2050 Test 2
Document Summary
Transmission, scattering, diffusion, refraction, mirage, reflection, albedo, absorption, rayleigh scattering. Insolation input- all radiation received at earth"s surface- direct and indirect. Note- there is less insolation in the tropics than in the areas right outside of them. Insolation in the atmosphere encounters gases, dust, clouds, and smoke. ~50% of insolation makes it to the earth"s surface. Scattering- changing direction of light"s movement, without altering its wavelength. Absorption- the assimilation of radiation by molecules of matter. The conversion of energy from one form to another. Reflection- insolation (light) is bounced off a surface without being absorbed or scattered. Refraction- change in speed and direction of light. Occurs when insolation is not absorbed, but is bounced in all directions scatter agents dust, pollutants, ice, cloud droplets, and water vapor diffuse radiation- the downward component of scattered light multidirectional shadowless light reaches the earth"s surface. Shorter wavelengths- greater scattering violet to blue smaller molecules. Longer wavelengths- less scattering orange to red larger molecules.
