ATSC 110 Lecture Notes - Lecture 3: Nitrogen Dioxide, Sulfur Dioxide, Internal Combustion Engine

• School: UND
• Department: Atmospheric Sciences
• Course: ATSC 110
• Professor: Alan Borho

Document Summary

Permanent gases: nitrogen 78% of atmos, oxygen 21% of atmos, argon, neon, helium, hydrogen, xenon. Variable gases: water vapor . 01-4, carbon dioxide 400ppm, methane, nitrous oxide, ozone, cfcs. Volcanic ash (main aerosol: can have the opposite effect of a greenhouse gas global cooling, beneficial as a surface for which water vapor can condense onto to form clouds. Oceans act as a huge reservoir for co2. Co2 in atmosphere has risen 30% since 1958. Increase in atmos co2 levels should equate to an increase in global surface temperatures: past 100 years: warmed 8 degrees. Additional 3 by end of this century. 97% of ozone found in upper atmos: o3 at surface creates smog. Cfcs chlorofluorocarbons: gradually being reduced in us destroys o3 (ozone) Combustion engine: nitrogen dioxide, carbon monoxide, hydrocarbons. Nitrogen dioxide reacts with hydrocarbons in sunlight to produce ozone. Gravity holds atmos close to earths surface. W = m x g: g = -9. 8 m/s^2.