0-dimensional Analysis: Štefan-Boltzmann Law … figure on page 60 is a misprint. Please refer to...
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What Determines the Temperature of the Earth?0-dimensional Analysis: Štefan-Boltzmann Law
σ is the Štefan-Boltzmann constant S is the solar irradiance (≈ 1366 W/m2)α is the planetary albedo (≈ 0.29 due to aerosols, clouds, surface)ε is the emissivity (≈ 0.61 due to greenhouse gases, clouds, surface)
Energy Balance: Ein=Eout
1− ! !4 = !"!!
Ein = πr2 1−α( )S Eout = 4πr
2εσ T 4
Jožef Štefan1835-1893
Ludwig Boltzmann1844-1906
Štefan-BoltzmannConstant
What Determines the Temperature of the Earth?0-dimensional Analysis: Štefan-Boltzmann Law
σ is the Štefan-Boltzmann constant S is the solar irradiance (≈ 1366 W/m2)α is the planetary albedo (≈ 0.29 due to aerosols, clouds, surface)ε is the emissivity (≈ 0.61 due to greenhouse gases, clouds, surface)
Energy Balance: Ein=Eout
1− ! !4 = !"!!
Ein = πr2 1−α( )S Eout = 4πr
2εσ T 4
Jožef Štefan1835-1893
Ludwig Boltzmann1844-1906
Štefan-BoltzmannConstant