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Warming the Earth and the Atmosphere

This chapter discusses:Temp and heat transferConduction, convection, radiationSolar radiation, earth energy balanceThe seasonsLocal variations. Temperature and Heat Transfer. Temperature is the quantity that tells us how hot or cold something is relative to some set standard value.Air is made

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Warming the Earth and the Atmosphere

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    1. Warming the Earth and the Atmosphere Chapter 2

    2. This chapter discusses: Temp and heat transfer Conduction, convection, radiation Solar radiation, earth energy balance The seasons Local variations

    3. Temperature and Heat Transfer Temperature is the quantity that tells us how hot or cold something is relative to some set standard value. Air is made up of billions of atoms and molecules, moving in all directions, spinning and bumping around. They don’t all move at same speed. Energy associated with this motion is called kinetic energy, the energy of motion. Temperature of air is the measure of its average kinetic energy Temperature is a measure of the average speed of the atoms and molecules, where higher temperatures correspond to faster average speeds. Absolute zero – at this temp the atoms and molecules would posses a minimum amount of energy and theoretically no thermal motion

    4. Temperature Scales Kelvin Scale - a temp scale begins at absolute zero (“no motion”) Fahrenheit Scale – assigned 32 as the number where water freezes and 212 where water boils. 180 equal divisions called degrees Celsius Scale – Zero on this scale assigned to the temperature at which pure water freezes and 100 to temp where pure water boils. Divided into 100 equal degrees C=5/9(F-32) K=C+273

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