JEG100H1 Chapter 4: Earth's Surface Energy Balance (Introduction to Physical Geography and Earth Sciences. Pearson Custom Library.)
11 May 2017
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Document Summary
Sept 20th, 2016: what happens to incoming radiation, what happens to outgoing radiation, how is the net radiation (energy) available at the surface used, why it"s important: we need to know the amount of energy available to power. Earth systems, and the effects of anthropogenic surface/atmosphere changes on radiation budgets and the climate. Scattering: gas molecules and dust physically interact with insolation to redirect and disperse incoming radiation in all directions. Gas air molecules interact with short wavelengths and scatter those wavelengths. Scattering accounts for a percentage of insolation that does not reach earth but is reflected back to space. Incoming radiation that reaches earth"s surface after scattering is diffuse radiation. Direct radiation travels in a straight line to earth"s surface without being scattered or affected by materials in the atmosphere. Once earth absorbs the short wave radiation, it emits radiation in the long wave radiation. Stays within the earth"s system, greenhouse effect (does not go back to space)
