from masters and ela (2008) - university of...
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![Page 1: From Masters and Ela (2008) - University of Washingtonfaculty.washington.edu/markbenj/CEE357/Day14_post1.pdf · Microsoft PowerPoint - Day14.pptx Author: Mark Benjamin Created Date:](https://reader036.vdocuments.site/reader036/viewer/2022062604/5fc47f2190596f549703b2ba/html5/thumbnails/1.jpg)
2Flux of solar energystriking atmosphere
S Rπ⎛ ⎞
=⎜ ⎟⎝ ⎠
S = solar constant = 1,370 W/m2
R = radius of earth = 6.378 x 106 m
From Masters and Ela (2008)
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2Energy flux due to reflectionby atmosphere and earth
S Rα π⎛ ⎞
=⎜ ⎟⎝ ⎠
( ) 2Energy flux1
absorbed by earthS Rα π
⎛ ⎞= −⎜ ⎟
⎝ ⎠
From Masters and Ela (2008)
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8 2 45.67x10 W m -Kσ −=
( )2 4Flux of energy radiated4
from earth to space eR Tσ π⎛ ⎞
=⎜ ⎟⎝ ⎠
o o254 K 19 C 2 FeT = = − = −
( ) ( )2 2 41 4 eS R R Tα π σ π− =
Actual Tavg = 288 K = 15oC = 59oF; ΔT = 34oC
σ = Stephan-Boltzmann constant:
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From Masters and Ela (2008)
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From Masters and Ela (2008)
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From Masters and Ela (2008)
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From Masters and Ela (2008)