GEO 2242 Lecture Notes - Lecture 5: Dynamic Equilibrium, Cumulus Cloud, Advection

• School: University of Florida
• Department: Geography
• Course: GEO 2242
• Professor: Fergus Keatinge

Document Summary

The gaseous portio(cid:374) of a pla(cid:374)et, the pla(cid:374)et"s e(cid:374)(cid:448)elope of air; o(cid:374)e of the traditio(cid:374)al su(cid:271)di(cid:448)isio(cid:374)s of earth"s ph(cid:455)si(cid:272)al e(cid:374)(cid:448)iro(cid:374)(cid:373)e(cid:374)t. Mostly a mixture of gases: nitrogen, oxygen, argon. Permanent gases of the atmosphere: make up 99. 96% of our atmosphere. Water vapor: most important and abundant of the variable gases. Since it absorbs ir radiation, it is a greenhouse gas. Added or removed from the atmosphere through the hydrologic cycle. Concentrations exist from nearly 0% over the deserts and polar regions. Tiny solid and liquid particles suspended in the atmosphere act as surfaces on which water vapor condenses to produce clouds and fog. Redu(cid:272)es the a(cid:373)ou(cid:374)t of su(cid:374)light rea(cid:272)hi(cid:374)g the earth"s surfa(cid:272)e (cid:271)(cid:455) a(cid:271)sor(cid:271)i(cid:374)g, refle(cid:272)ti(cid:374)g a scattering incoming solar energy. Originate from many natural and human sources: volcanic eruptions, soil blows into the air. Dr. thomas midgley jr. (may 18th 1889 november 2nd 1944) Discovered that the addition of tetraethyl lead to gasoli(cid:374)e pre(cid:448)e(cid:374)ted (cid:862)k(cid:374)o(cid:272)ki(cid:374)g(cid:863) i(cid:374) i(cid:374)ter(cid:374)al combustion engines.