Question

Homework 1 Please calculate the Earth Radiative Equilibrium Temperature. What would it be if the distance between Earth and Sun will be equal to 2 AU and 0.9 AU? Do not account for the albedo feedback, but discuss qualitatively how it could change the results. For the case of small changes of Solar Constant, try to use the climate sensitivity approach. Use the energy equilibrium equation and unperturbed solar constant as given below: $(1 - A) \times S_0 / 4 = \sigma T_E^4$ $S_0 = 1368 Wm^{-2}$ - Solar const. $\sigma = 5.7 \times 10^{-8} Wm^{-2}K^{-4}$ - Stefan – Boltzmann $A = 0.3$ - Earth's planetary albedo $T_E$ - Earth's radiative equilibrium T

          Homework 1
Please calculate the Earth Radiative Equilibrium Temperature. What
would it be if the distance between Earth and Sun will be equal to 2
AU and 0.9 AU? Do not account for the albedo feedback, but discuss
qualitatively how it could change the results. For the case of small
changes of Solar Constant, try to use the climate sensitivity
approach.
Use the energy equilibrium equation and unperturbed solar constant
as given below:
$(1 - A) \times S_0 / 4 = \sigma T_E^4$
$S_0 = 1368 Wm^{-2}$ - Solar const.
$\sigma = 5.7 \times 10^{-8} Wm^{-2}K^{-4}$ - Stefan – Boltzmann
$A = 0.3$ - Earth's planetary albedo
$T_E$ - Earth's radiative equilibrium T

Homework 1
Please calculate the Earth Radiative Equilibrium Temperature. What
would it be if the distance between Earth and Sun will be equal to 2
AU and 0.9 AU? Do not account for the albedo feedback, but discuss
qualitatively how it could change the results. For the case of small
changes of Solar Constant, try to use the climate sensitivity
approach.
Use the energy equilibrium equation and unperturbed solar constant
as given below:
(1 - A) × S0 / 4 = σ TE^4
S0 = 1368 Wm^-2 - Solar const.
σ = 5.7 × 10^-8 Wm^-2K^-4 - Stefan – Boltzmann
A = 0.3 - Earth's planetary albedo
TE - Earth's radiative equilibrium T

Added by Celia W.

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