GEOG 2050 Chapter : Geog Chapter 4
Document Summary
Insolation input all radiation received at earth"s surface. We get the most insolation in desert areas due to lack of clouds. Forest regions have more clouds and therefore receive less insolation. Insolation in the atmosphere encounters gases, dust, clouds, and smoke. ~45% of insolation makes it to the earth"s surface. Changing direction of light"s movement, without altering its wavelength. Dust, pollutants, ice, cloud droplets, and water vapor. Diffuse radiation the downward component of scattered light multidirectional shadow-less light. At low sun angles, blue light is so scattered that it is eventually absorbed, and only scattering of red light is visible. The assimilation of radiation by molecules of matter. The conversion of energy from one form to another. The retention of radiant energy by atmospheric gases, dust, clouds, and smoke. Absorption raises temperature of molecules, e. g. , in thermosphere and stratosphere. Atmosphere is an open window to visible light (exception is clouds) Ozone and uv produces heat in the ozone layer.
