Heat Budget of Earth – UGC NET Geography – Detailed Notes

Heat Budget of Earth

(Detailed Notes)

Unit 2

UGC NET GEOGRAPHY

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Heat Budget of Earth

Table of Contents

Concept
Albedo
Types of Albedo
Effect Of Earth’s Albedo On Climate
Significance of Albedo
Variation in the Net Heat Budget of the Earth
Mechanism
Three Levels for the Process to Occur
Role of Evaporation Convection and Thermal Infrared Radiation
Significance

The earth absorbs some insolation (short waves) and radiates heat back into space via terrestrial radiation (longwave radiation). Through this give and take process simply called the heat budget of the atmosphere, the earth maintains a constant temperature.

Concept

A heat budget is an exact balance between incoming heat collected by Earth and outgoing heat emitted as radiation.
If this balance is disrupted, the earth will get increasingly warmer or cooler as time passes.
In other words, it is the gain and loss of heat, as well as the balance of heat (received and emitted).

Heat Budget and the Atmosphere

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