Presentation on theme: "How does energy transfer through our atmosphere?"— Presentation transcript:
1How does energy transfer through our atmosphere? Heat TransferHow does energy transfer through our atmosphere?
2Solar Energy The sun is the source of all energy in Earth’s atmosphere The energy is transferred in three ways:RadiationConductionConvection
3RadiationRadiation is the transfer of energy through electromagnetic wavesAnything with a temp above 0K radiates energyThe earth absorbs 50% of the sun’s radiationRadiation does not directly heat the atmosphere
4ConductionConduction occurs between two objects that are in contact with each otherExample – pot on stoveThe lowest layers of the atmosphere are heated by conduction
5Convection Convection is the flow of energy through a heated substance The heated substance rises as it loses densityThe substance cools at the top of a cycle, compresses to increase density, and sinksThe cycle repeats as long as there is heat transfer to the substance
9Dew PointThe temperature air must be cooled at constant pressure to reach saturation is the Dew PointSaturated air cannot hold any more water vaporWhen air reaches its dew point, Condensation occurs, causing rain or other precipitation