AOS145_HW04 - AOS145 HW#4 Due 1 Jupiter Jupiter is 7.8108...

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AOS145 HW #4 Due 3/ 1 /201 7 1. Jupiter Jupiter is 7.8 × 10 8 km from the Sun. Its albedo is 0.73. Calculate the effective temperature of Jupiter assuming that the Sun is the only energy source. Observations indicate an effective temperature for Jupiter of 134 K. This temperature is maintained in part by heat from gravitational accretion and chemical reactions within the planet. How does the magnitude of Jupiter's internal heat source compare to the source from solar radiation? 2. Evaporation The net radiative energy absorbed by the Earth surface averages 102 W m -2 over the globe. Part of this radiative energy is re-emitted to the atmosphere directly as heat, while the rest is used to evaporate water. The global precipitation rate on Earth is 2 mm d -1 , and the latent heat of vaporization of water is 2.5 × 10 6 J kg -1 . Deduce the fraction of the net radiative energy at the Earth’s surface that is used to evaporate water.
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