GEOG 221 Lecture : GEOG 221 Lecture 2.1.docx
16 Feb 2013
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Geog 221/nrsc 221 lecture 2. 1 (jan. 10th, 2013) Superdome in new orleans: shelter, crammed people that didn"t have anywhere else to go there, awful conditions (inadequate climate, toilets, etc) Social side of the disaster: african americans that were affected. Between tropics, the sun is directly overhead: more sunlight going in at the equator than at the poles. Earth releases longwave radiation (ir, heat): hotter bodies emit more. Earth receives more in tropics than it gives out (surplus), gives out more everywhere else than it receives (deficit) because the earth is tilted at 23. 5 . The region of peak heating migrates from the northern hemisphere in june to the southern hemisphere in december. There is a heat transfer: transport of heat from regions of surplus to deficit: from the tropics towards the poles by winds, ocean currents, and weather. Hurricanes: solve energy imbalance, brings heat from tropics to northern regions.
