EVSC 1450 Lecture Notes - Lecture 5: Solar Constant, Energy Economics

• School: University of Virginia
• Department: Environmental Sciences
• Course: EVSC 1450
• Professor: Lawrence Deborah

Document Summary

Compare your notes with posted complete lectures. A guide to solving (climate physics) problems. Try to think about what"s going on. Today: we will build on our understanding of energy in- energy out. Energy balance helps us understand climate change. E in, e out, and energy balance. Remember that power emitted (energy out) is related to temperature and wavelength. To figure out how much power is emittted by an object, we start with a piece. Per unit area x area of sphere. Do problems at the end of the chapter. One object gains energy, another object must lose energy. If e in > e out, delta e is positive, object warms. If e out > e in, delta e is n gative, object cools. If e out = e in, there is no change in temperature. For planets, we are going to assume that energy in = energy out . Basic physics of e in and e out.