lecture 6 temperature slides

lecture 6 temperature slides - Evaporation – more energy...

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1 Temperature scales Kelvin 0 = no molecular motion in atoms water boils at 373 ºK Celcius 0 = freezing point of water water boils at 100 ºC Fahrenheit = 32 freezing point of water water boils at 212 ºF Air temperature is a measure of sensible heat energy – a measure of average kinetic energy of molecules in the atmosphere Factors that control temperature Latitude – outside the tropics intensity and length of insolation govern the amount of energy that gets to the surface- and therefore controls temperature Factors that control temperature Altitude – height above mean sea level- used for the atmosphere (elevation – height above sea level for a land surface) Latitude and altitude result in less warming at C Latitude and altitude result in greater loss of LW at C
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2 Vegetation cover blocks short wave during the day resulting in lower temperatures but also inhibit loss of LW at night resulting in warmer temperatures Land – water heating differences
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Unformatted text preview: Evaporation – more energy arriving at water surface is used of evaporation than on land Transparency – oceans allow insolation to penetrate below surface, land is opaque Specific heat – water can hold more heat (sensible energy ) than rock or soil so warming or cooling takes longer for bodies of water. Land –water heating differences Movement – water movement takes sensible energy to lower depths increase the capacity to store sensible energy Land –water heating differences Movement – water movement takes sensible energy to lower depths increase the capacity to store sensible energy Water currents – move warm water to different locations (in oceans to higher latitude) 3 Heating the atmosphere Air temperature is near the maximum for only a short time, most of the night near the minimum Temperature decrease with air pressure (altitude) in the Troposphere Conversion table...
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lecture 6 temperature slides - Evaporation – more energy...

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