Solar Radiation
The dynamics of the solar radiation and the main aspects of the energy rocking global Anderson Azevedo Mesquita* the Sun is great astro of the universe, is of it that energy waves are radiated that if propagate for all space and that they reach and they give to dynamics the main physical, biological and chemical functions of the systems and subsystems that receive the radiation solar as form from motor energy. The Sun supplies 99.97% of the energy that is used by the systems that form the Land, presents capacity of production of huge energy, the radiated ratio is of about 56 x 10 v calories of energy per minute, where the Land intercepts only 2,55 x 10 x calories, sum enough to supply the necessity and the energy consumption of the world 30 a thousand times during 01 (hum) year. (AYOADE, 1986) the energy radiated for the Sun is propagated in the space for intermediary of electromagnetic waves that present specific behavior and lengths. Second, Tubelis (1980) to the spectral distribution of solar radiation is indicated in the band of wave length between 0,3 and 4 microns, therefore, the solar radiation is called of radiation of short wave, being the main waves radiated pertaining to this group, of the ultraviolet band, the visible band and the infra red ones, being the radiated respective proportionality in the Land of 9%, 41% and 50%. When arriving the Land, the solar radiation will interact the principle with atmosphere and all its composites, the radiation will go to cross the atmospheric layers and sublayers and will suffer processes from attenuation. Such processes of attenuation, according to Tubelis (1980), are three: 1.
Scattering for particles of the atmosphere or diffusion; 2. Selective absorption; 3. Process of absorption and reflection for clouds. The particle scattering or diffusion is the scattering of the solar ray caused by diverse gaseous composites or of solid or liquid microparticles that are in suspension in the atmosphere, depending on characteristics of these elements, and the type of wave emitted for the Sun that is attenuated by the process of scattering or diffusion, abundance of certain colors of light in the visible portion of the solar specter can be had greater, for example, the blue light more is spread of what the red color, therefore the dominant aspect of the blue color in the sky.