GEOGRAPH 110 Lecture 4: GCC Lecture 4

• School: UMASS-Amherst
• Department: Geography
• Course: GEOGRAPH 110
• Professor: Deconto Robert

Document Summary

The sun radiates short wave lengths into the earth and the earth radiates out infrared. Planck curves: how much energy is being radiated at a given wavelength. The earth doesn"t radiate as much energy as the sun. The curves are not to scale, they are normalized to make it easier to read. Fourier: the earth is radiating out to space at the exact rate the sun is radiating the. Came up the energy balanced model (ebm) albedo: the energy being reflected off of the earth (0. 3) Only 70% is interacting with the earth = 240#$ He did so by breaking up white light into different wavelengths to see the prism of colors. He stuck a thermometer at the end of each light. The temperature rose and showed that the radiation can heat things up. He put a thermometer in the black area beyond the red light (known as infrared). Thermometer increased and discovered radiation in wavelengths that we cannot see.