GEO 110 Lecture Notes - Lecture 3: Urban Heat Island, Background Radiation, Solar Irradiance

• School: Ryerson University
• Department: Geography
• Course: GEO 110
• Professor: Richard Shaker

Document Summary

Insolation of the earth: ea(cid:396)th"s e(cid:374)e(cid:396)g(cid:455) budget, energy transfer and temperature, miscellaneous temperature dynamics, case study: urban heat island. Introduction: solar radiation is the at(cid:373)osphe(cid:396)e"s heat sou(cid:396)(cid:272)e, most gases are transparent to solar radiation, they do absorb terrestrial radiation, gases also scatter energy, the global energy budget, a balance between incoming solar radiation and outgoing terrestrial radiation. Insolation is incoming solar radiation: measured in w/m2, depends on angle of the sun above the horizon, equinox is equal day and night, toronto, it is 43 degrees, moving away from the equator to cover more energy. Insolation: the flow of solar energy intercepted by an exposed surface assuming a uniformly spherical earth with no atmosphere. Intensity of incoming solar radiation (insolation) is related to angle of incidence: higher angles = higher intensity. If parameters were changes a new equilibrium occurs: balances, global, diurnal, local.