Podcast
Questions and Answers
What term refers to the solar radiation received in the Earth's atmosphere or its surface?
What term refers to the solar radiation received in the Earth's atmosphere or its surface?
- Solar Flux
- Greenhouse Effect
- Insolation (correct)
- Albedo
Approximately what percentage of insolation reaches the Earth's surface?
Approximately what percentage of insolation reaches the Earth's surface?
- 90 per cent
- 75 per cent
- 30 per cent
- 52 per cent (correct)
Which of the following processes describes the reflection of solar radiation by the Earth's surface?
Which of the following processes describes the reflection of solar radiation by the Earth's surface?
- Transmittance
- Scattering
- Absorption
- Albedo (correct)
What is the effect called when reflected heat is trapped in the atmosphere, keeping the planet warm?
What is the effect called when reflected heat is trapped in the atmosphere, keeping the planet warm?
Which components contribute to the absorption or reflection of insolation before it reaches the Earth’s surface?
Which components contribute to the absorption or reflection of insolation before it reaches the Earth’s surface?
Flashcards
Insolation
Insolation
Solar radiation received by Earth's atmosphere or surface.
Albedo
Albedo
The amount of sunlight reflected by an object.
Natural Greenhouse Effect
Natural Greenhouse Effect
Trapped long-wave radiation warming Earth's atmosphere.
Solar Radiation
Solar Radiation
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Earth's surface
Earth's surface
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Study Notes
Solar Energy and Insolation
- Insolation is short-wave solar energy received in the Earth's atmosphere or at its surface.
- Roughly 52% of insolation reaches the Earth's surface.
- The remaining insolation is absorbed by atmospheric elements (water vapor, dust, clouds) or reflected/scattered.
- This reflection is called albedo.
- Albedo describes the extent of diffuse reflection of sunlight by an object.
Natural Greenhouse Effect
- Reflected heat (long-wave radiation) is trapped in the atmosphere.
- This process keeps the planet warm, known as the natural greenhouse effect.
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