incoming = outgoing = (b) Which flux best represents the greenhouse effect? (c)
ID: 230516 • Letter: I
Question
incoming =
outgoing =
(b) Which flux best represents the greenhouse effect?
(c) With more greenhouse gases in the atmosphere, how do the following energy fluxes (arrows) change? Write increase, decrease, or no change next to each.
incoming solar radiation __________
back radiation __________
outgoing longwave radiation __________
surface radiation __________
Incoming Solar Radiation 342 Wm2 Outgoing Longwave Radiation 235 Wm2 Reflected Solar 235 107 Radiation 342 107 Wm2 Reflected by Clouds Aerosol and Atmospheric Gases Emitted by Atmosphere 165 40 Atmospheric 30 Window Emitted by Clouds Absorbed by 67 Atmosphere Greenhouse Gases Laten 24 78 Heat 40 Reflected by Surface 30 324 Back Radiation 350 390 Surface 24 78 Absorbed by Thermals Evapo-Radiation 324 Absorbed by Surface Surface transpiration Fig. 4.3 Estimate of the Earth's annual and global average energy balance (from IPCC AR4 2007)Explanation / Answer
(a) Yes
incoming = 168+324=492
outgoing = 390+24+78=492
(b) Back radiation
(c)
incoming solar radiation - no change
back radiation - increase
outgoing longwave radiation - decrease
surface radiation - no change
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