Question

Explain the term heat budget.

Answer 1

Heat budget is the balance between the incoming solar radiation (insolation) received by the Earth and the outgoing terrestrial radiation emitted by the Earth back into space. When the amount of incoming energy equals the amount of outgoing energy, the Earth is in heat equilibrium or heat budget. This balance is crucial for maintaining a stable climate and temperature on Earth.

Heat budget is the continuous process by which the Earth absorbs solar energy during the day and radiates heat to the atmosphere and space, with the atmosphere playing a major role by absorbing and re-radiating heat, thereby preventing extreme temperature fluctuations between day and night.