(a) {2 pt} In this diagram, is the Earth\'s energy budget in balance (incoming e
ID: 230555 • Letter: #
Question
(a) {2 pt} In this diagram, is the Earth's energy budget in balance (incoming energy = outgoing energy)? Yes/No, Show your calculation.
incoming =
outgoing =
(b) {2 pt} Which flux best represents the greenhouse effect?
(c) {8 pts} 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 ______________________
(d) {2 pts} What is albedo and describe what controls the Earth's albedo?
(e) {2 pts} Calculate the Earth's albedo from this diagram. A = ___________
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 - no change
surface radiation - no change
(d) albedo or reflection coefficient is the reflecting power of a surface. It is the ratio of reflected radiation from the surface to incident radiation upon it.
Changes in ice cover, cloudiness, airborne pollution, or land cover (from forest to farmland, for instance) all control Earth's albedo.
(e) A=107 Wm-2
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