Pregunta
Study FIGURE 2. 15 on PAGE 89 that shows the heating of the atmosphere and answer the questions that follow:
3.1 What is insolation?
- incoming solar radiation
- the suns energy that passes through the earth’s atmosphere
3.1 What is the tropopause? (p. 83)
- upper level of the troposphere
3.2 How much of the sun’s energy reaches the tropopause? - one billionth of the sun’s energy
3.3 What is the solar constant?
- the amount of solar radiation that reach the tropopause
3.4 Why does only
of the sun’s energy reach Earth’s surface?
- Because of reflection, absorption and scattering
3.5 Explain how the processes of reflection, scattering and absorption reduce the amount of the sun’s energy that reaches the Earth’s surfad
- Surfaces reflect or send back some radiation back into the upper atmosphere. We call this reflection
- Gases in the atmosphere absorp some of the radiation. We call thi: absorption
- some radiation is bounced off dust particles. We call this scatterin
3.1 What is insolation?
3.1 What is the tropopause? (p. 83)
3.2 How much of the sun’s energy reaches the tropopause? - one billionth of the sun’s energy
3.3 What is the solar constant?
3.4 Why does only
3.5 Explain how the processes of reflection, scattering and absorption reduce the amount of the sun’s energy that reaches the Earth’s surfad
Ask by Stewart Weston. in South Africa
Mar 16,2025
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Respuesta verificada por el tutor
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Simplified Answers:
- Insolation: Incoming solar radiation that passes through the Earth’s atmosphere.
- Tropopause: The upper boundary of the troposphere, the lowest layer of Earth’s atmosphere.
- Solar Constant: The amount of solar radiation reaching the tropopause.
- Energy to Earth’s Surface: Only
of the sun’s energy reaches the Earth’s surface due to reflection, absorption, and scattering by the atmosphere.
Explanation:
- Reflection: Surfaces like clouds and land reflect solar radiation back into the atmosphere.
- Absorption: Gases in the atmosphere absorb some solar energy, preventing it from reaching the surface.
- Scattering: Dust particles scatter solar radiation, redirecting it away from the Earth’s surface.
These processes significantly reduce the amount of solar energy that warms the Earth’s surface.
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Insolation, or incoming solar radiation, plays a crucial role in Earth’s energy balance. It’s not just a warm hug from the sun; it’s the driving force behind weather patterns and climate! As solar radiation travels through space, it encounters different atmospheric layers, which affect how much energy gets trapped or reflected away. Next time you bask in the sun, remember you’re soaking in a fraction of what the sun generously emits!
The tropopause acts as a significant climatic barrier, marking the transition between the troposphere, where we live, and the stratosphere above. This layer is not only vital for weather systems but also plays a role in regulating how much energy and moisture circulate within the atmosphere. Picture it as the “ceiling” of our weather adventures, where temperatures stabilize and contribute to the overall dynamics of Earth’s atmosphere!

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