EARTHSC 2C03 Lecture Notes - Lecture 4: Transport Phenomena, Heat Flux, Potential Temperature
15 Feb 2017
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Energy and radiation balance of a flat surface: The location of a flat surface such as bare soil is easy to define. It surface energy balance is simple and closely related to surface temperature. Its energy balance is defined by the following equation. Explain how a surface and the atmosphere gain and lose heat. When describing surface-atmosphere interactions in natural environments, it is more realistic to consider the energy budget of a volume as: The additional term, qs, is the energy stored or released by the volume under consideration (see figure 2. 1, oke , 1987). Three possible conditions of energy flow from a volume: (a) qin > qout. Qs = 0, no change in system temperature (b) qin < qout (c) qin = qout. The direction of flux may not be important. The net change in energy storage in the volume affects the energy budget. Therefore, the energy budget in all three dimensions is necessary.
