20625396
Description
Flashcards by Jacob Sipple, updated more than 1 year ago
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Created by Jacob Sipple
about 5 years ago
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| Question | Answer |
| Climate forcing | something that changes earth's energy budget(input or output) can be natural(i.e. volcanic) or caused by humans changes global temperature |
| radiative forcing | change in net, downward minus upward radiation at the top of atmos, changed by concentration of Greenhouse gases, change occurred relative to 1750(indust revo) |
| climate sensitivity | magnitude of temp response |
| sun solar output changes(why) | sunspots |
| sunspots | 11 year cycle changes by about .1% more solar radiaton |
| albedo | reflection: clouds, glaciers, deserts, vegetation, aerosols(fog dust steam smoke etc.) |
| aerosols | airborne solids or liquid particles size <10microns(basically atoms-dust) suspended in the atmosphere fog, dust, steam, smoke, air pollutants, soot |
| albedo #s | snow clouds(>50%), soil plants(49-11%, water <10% |
| sources of aerosol | dust, soot, fires, manufacturing |
| ozone | reflects UV light in stratosphere if in troposphere toxic to plants and animals |
| most effective climate forcing | Greenhouse gas(warming) aerosols(cooling) |
| El Nino | reversal of winds near equator and warms up area around south america results in warmer winter in US and australia and some other stuff around the world |
| radiative forcing values | CO2(~2) Methane, N2O(~1) ozone(~.5) aerosol(~-1) |
| climate sensitivity parameter | 0.4 change in temp = radiative forcing * .4 |
| feedback loops | positive feedback amplifies negative decreases, look at water vapor feedback loop |
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