ATOC 1050 Lecture Notes - Lecture 2: Latent Heat, Sensible Heat, Heat Transfer
25 Jan 2019
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Heat - the transfer of energy in or out of an object due to a temperature difference between that object and its surroundings (moves high to low) Sensible heat is feelable and measurable with a thermometer. Latent heat is the amount of energy required to change the physical state of water. Heat is measured in the unit of calories (c; not equivalent to dietary calories); 1 calorie is the amount of heat required to raise the temperature of 1 gram of water by 1 degree c. Phase changes have a quantifiable effect on the atmosphere through the release of latent heat: Earth"s surface is heated by radiation whereas the bottom layer of the atmosphere is heated by conduction. Each type of electromagnetic wave has a different wavelength (the distance from crest to crest) As the length of a wave decreases, the energy per wave increases. The sun emits all forms of radiation in the following composition:
