LIFESCI 2H03 Lecture Notes - Ultraviolet, Montreal Protocol, Photodissociation
11 Jun 2013
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Document Summary
Ozone layer is not as thick over antarctica as a result of processes that lead to its destruction the sun is a source of energy that drives the processes seen on earth. Energy reaches the earth in form of radiation. X-ray, gamma rays are intercepted at high altitudes, carry the most energy. Visible light and ultraviolet radiation reach the earth"s surface. Uv contain a lot of energy and are intercepted by the ozone layer. Significant reduction in the amount of uv radiation reaching earth"s surface due to being screened out by the ozone. The ozone layer troposphere: closet to the ground surface, where the weather processes are happening, storms, hurricanes, as altitude increases there is an increase in ozone. 90% of the ozone is in the stratosphere. Ozone in the troposphere is associated with pollution. How do we measure concentration: based using balloon systems.
