Atmospheric Temperature and Heat Transfer
The atmosphere's temperature is influenced by various factors, with heat being transferred through conduction, convection, and radiation. Learn about the difference between heat and temperature, as well as the heating and cooling processes in the atmosphere.
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Presentation Transcript
TEMPERATURE TEMPERATURE Here, temperature means atmosphere temperature. Indirectly the sun is the major source of atmospheric temperature. In fact, the atmosphere receives very low amount of heat energy from the sun as it receives most of its energy from the long wave terrestrial radiation. Atmosphere receive energy from the sun and the earth in different ways. On an average, the heating and cooling of the atmosphere is accomplished through direct solar radiation and through transfer of energy from the earth through the processes of conduction, convection and radiation.
Continued It may be pointed out that heat and temperature generally appear synonym to common people but these two terms differ considerably as regards their real meaning. Heat is a form of energy while temperature denotes the intensity of hotness or coldness of any substances. In other words, heat denotes the quantity of energy present in any substance while temperature refers to the degree of hotness of that subject. The transfer of heat from one body to the other is accomplished through conduction, convection, and radiation.
Heating and cooling of the Atmosphere Heating of the atmosphere by Direct Insolation: The heat energy is radiated from the outer surface of the sun (photosphere) in the form of long waves. The atmosphere absorbs 14 per cent of incoming short wave solar radiation through ozone, water vapour etc. present therein. Seven per cent of this energy is spread in the lower atmosphere up to the height of 2km.
Conduction Conduction The transfer of heat through the molecules of matter in any body is called conduction. The transfer of heat under the process of conduction may be accomplished in two ways (1). From one part of a body to the another
