GEOG 3110 Lecture Notes - Lecture 2: Reflectance, Shortwave Radio, Emissivity
5 Mar 2018
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Document Summary
Solar radiation is transformed as it interacts with atmosphere and surface. Temporal and spatial variations in energy, leads to different climates. The ability to do work on sometime of matter. Work is done on matter - pushed, pulled, lifted. Radiation is emitted by all objects with temperatures > 0 kelvin. Photons traveling through space in a wave like pattern. Conduction is the transfer of energy molecule to molecule (grand heat flux) Convection is the vertical movement of mass caused by difference in temperature. Describes how much energy an object gives off by a black body as a function of wavelength and temperature. Equation gives the are under the curve (found by integrating) E is measured w/m -temperature is in kelvin. Gives maximum of the curve (found by taking its derivative) Earth peaks in the infrared at 10 m. Black bodies are hypothetical bodies which are both perfect absorbers and perfect emitters of radiation.
