ENV 1101 Lecture Notes - Lecture 1: Waste Heat, Malnutrition, Incineration
16 Apr 2018
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Document Summary
Stratosphere (11-50 km up: ozone layer: 17-30 km up, reduces uv radiation (warms the stratosphere), vital for life. Troposphere: 11 km thick, rain occurs here, greater distance up = colder it gets, mixing of air. Energy passing through the atmosphere drives ecological systems. Amount of energy arriving from uv radiation = balanced by amount of energy leaving. Radiative forcing = the difference between sunlight absorbed and energy radiated back to space. Weather = state of atmosphere in particular time and place (temp, precip, wind, clouds, air pressure, etc. ) Climate = average weather conditions for a given (larger) area over a longer time period. Atmospheric properties: atmospheric pressure (weight of air, weighs more closer to earth, relative humidity (water vapour, temperature (drives air circulation, convective cells produce wind, large-scale convective cells produce global climate patterns) Cells interact with the earth"s rotation to produce global wind patterns. 3 pairs of cells: hadley, ferrell, polar.
