Term
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Definition
| Cirrus, thin cold and contain ice crystals |
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Term
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Definition
| cummulus or stratus, thick, warm and contain rain or snow |
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Term
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Definition
reflection of shortwave radiation
absorbtion of longwave radiation
clouds cause both warming and coolding |
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Term
Low clouds vs high clouds
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Definition
SW: high clouds have ice crystals allowing more SW to pass through rather than water drops in low clouds which have higher reflectivity. highclouds cause less cooling than low clouds
LW:high clouds emmisivity of LW is .3 because of the ice, low clouds have emissivity of .7 becuase of water lowe clouds cause more LW hwarming than highclouds |
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Term
| how many units come in and out of earth |
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Definition
100 in and 100 out
earth is warmed by 88 units LW and 45 units of SW so LW warm more than SW |
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Term
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Definition
| using albedo and earths 1370 wm2 we can calculate temperature, earth should be at 0 degrees if just SW radiation, GHE should keep earht at 60 degrees |
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Term
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Definition
| increase in Greenhouse warming due to greenhouse gasses |
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Term
| how much will doubling c02 raise the earths temperature? |
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Definition
| 2.2 degrees from 280 to 560 |
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Term
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Definition
| some wavelengths are 100% abosorbed by the atmosphere GHG make LW radiation stay longer |
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Term
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Definition
| There are windows which GHG cannot abosorb certain wavelengths however when CFC was introduced it plugged up windows creating less expulsion of LW radiation |
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Term
| Different feedback systems |
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Definition
Watervapor.. hotter it gets more vapor more vapor makes it hotter ect...
snow and ice... hotter it gets less snow and ice and less radiation radiated making it hotter hotter makes less snow ect...
warmer objects emit higher amounts of radiation on worsenign the situation
so the 2.2 is realy liek 4.5 degree increase with doubling Co2 levels. |
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