GEOS 1034 Lecture Notes - Lecture 11: Bookkeeping, Ice Core, Dynamic Equilibrium
18 Aug 2016
School
Department
Course
Professor
Document Summary
Are obvious: don"t require massive data sets to find them. Are limited in extent: don"t require profound societal changes. Are of little of no benefit: don"t require overcoming objections. The mean of earth"s surface conditions: local variations averaged out. Short-term variation also averaged out: climate does not equal weather. Why so complicated: some radiation is absorbed by surface. Some by atmosphere: figuring out output is complicated. Everything above absolute zero emits some energy: not all of it is visible light. Energy vs wavelength curves have a specific shape: a blackbody curve. Approximates a 5523k blackbody spectrum: earth"s atmosphere absorbs some. O-zone is oxygen free: absorbing ultra violent ray. Earth does not act like a perfect radiator. Are what cause the greenhouse effect : h20, co2, ch4, o3, n20, cfc. Required for life: without, average t = 19 degrees celius, with, average t = 14 degress celcius. Energy and matter exchanged among surface components.
