Chapter04a - Atmospheric Moisture Recap daily temperature...

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Atmospheric Moisture
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During the day, the Earth’s surface and air above will continue to warm as long as incoming energy (mainly sunlight) exceeds outgoing energy from the surface. At night, the Earth’s surface cools, mainly by giving up more infrared radiation than it receives – a process called radiational cooling. The coldest nights of winter occur when the air is calm, fairly dry (low water-vapor content), and cloud free. The highest temperatures during the day and the lowest temperatures at night are normally observed at the Earth’s surface. Therefore, the greatest daily variation in air temperature also occurs at the surface. Radiation inversions exist usually at night when the air near the ground is colder than the air above. Both the diurnal and annual ranges of temperatures are greater in dry climates than in humid ones. Even though two cities may have similar average annual temperatures, the range and extreme of their temperatures can differ greatly. How cold the wind makes us feel is usually expressed as a
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This note was uploaded on 04/08/2008 for the course MET 1010 taught by Professor Matchev during the Spring '08 term at University of Florida.

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Chapter04a - Atmospheric Moisture Recap daily temperature...

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