Energy Budget Youtube Lecture Handouts

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Watch video lecture on YouTube: Earth's Energy Budget: Balancing Incoming & Outgoing Radiation

Earth's Energy Budget: Balancing Incoming & Outgoing Radiation

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Energy Budget

Dr. Manishika Jain explains energy budget: the incoming and outgoing energy balance in this lecture.

An energy budget is a balance sheet of energy income against expenditure and deals with the study of energy transfer and transformation from one form to another.

Energy Budget Image-1

Energy Budget Image-1

Energy Budget Image-1

The day time and night time situations are explained in the diagram below.

Energy Budget Image-2

Energy Budget Image-2

Energy Budget Image-2

  • Sun the ultimate source of heat.

  • Differential heat is the reason behind all climatic features.

  • Radiation is without actual contact or movement- from the sun to the earth through space.

  • Conduction through matter by molecular activity.

  • Convection by actual transfer of matter or substance from one place to another- convection cycles in atmosphere and oceans

  • The highest temperatures occur over tropics and sub-tropics (high insolation).

  • Lowest temperatures occur in polar and sub polar regions.

  • Diurnal and annual range of temperatures are highest in the interiors of continents.

  • Diurnal and annual range of temperatures are least in oceans

  • Low temperature gradients are observed over tropics

  • Temperature gradients are usually low over the eastern margins of continents

  • The isotherms are irregular over the northern hemisphere- enhanced land-sea contrast

  • Mountains affect the horizontal distribution of temperature.