1. Using the information from above, what percentage of incoming solar radiation is absorbed by the Earth's surface and converted to longwave energy? (your answer must be numeric)

Applications and Investigations in Earth Science (9th Edition)
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An Energy Budget helps track energy flow in a system. An equation is used to balance the energy coming into a system with the energy that is leaving the system. 

The image below helps to explain how the Greenhouse Effect functions on Earth. The information provided here will help you answer the questions that follow as you attempt to understand the Earth's energy budget.

  • Clouds reflect 17% of all incoming solar radiation back into space. An additional 8% is reflected by air molecules, and another 6% is directly reflected off the surface (mainly from snow, ice, and water).

  • Incoming solar energy also gets absorbed directly by dust, ozone and water vapor in the upper atmosphere. This region is called the Stratosphere. The Stratosphere absorbs 19% of the sun’s energy and is heated by that radiation.

  • The percentage of shortwave radiation that is absorbed by the Earth is later emitted as longwave infrared. A portion of this longwave energy is lost directly into space. The rest is used to warm the Troposphere (the atmospheric layer closest to the surface).
1. Using the information from above, what percentage of incoming solar radiation is absorbed by the Earth's surface and converted to longwave energy? (your answer must be numeric)
 

 

The diagram illustrates the Earth's energy budget concerning solar radiation. Here's a detailed breakdown:

1. **Incoming Solar Energy**: 
   - The sun emits 100% of its energy towards the Earth in the form of shortwave radiation.

2. **Reflection and Absorption**:
   - **31% of incoming solar energy** is directly reflected back to space, preventing it from contributing to Earth's warming.
   - **19% of incoming solar energy** is absorbed by the Stratosphere, which includes gases like ozone that capture some of the sun's energy.

3. **Absorption by Earth**:
   - The remaining energy is absorbed by the Earth’s surface, where it is converted into heat.
   - The energy absorbed by Earth is then transformed and later released as longwave radiation (infrared).

4. **Longwave Radiation**:
   - **15% of the energy absorbed by Earth** is radiated back to space in the form of longwave radiation.
   - **35% of the longwave radiation** can be trapped by molecules in the Troposphere, contributing to the warming effect known as the greenhouse effect.

The diagram uses arrows to represent the flow of solar and terrestrial radiation, and text boxes provide percentages to indicate the distribution of energy within various atmospheric layers. The use of colors (yellow for shortwave and red for longwave radiation) visually distinguishes between the types of radiation interacting with the Earth and its atmosphere.
Transcribed Image Text:The diagram illustrates the Earth's energy budget concerning solar radiation. Here's a detailed breakdown: 1. **Incoming Solar Energy**: - The sun emits 100% of its energy towards the Earth in the form of shortwave radiation. 2. **Reflection and Absorption**: - **31% of incoming solar energy** is directly reflected back to space, preventing it from contributing to Earth's warming. - **19% of incoming solar energy** is absorbed by the Stratosphere, which includes gases like ozone that capture some of the sun's energy. 3. **Absorption by Earth**: - The remaining energy is absorbed by the Earth’s surface, where it is converted into heat. - The energy absorbed by Earth is then transformed and later released as longwave radiation (infrared). 4. **Longwave Radiation**: - **15% of the energy absorbed by Earth** is radiated back to space in the form of longwave radiation. - **35% of the longwave radiation** can be trapped by molecules in the Troposphere, contributing to the warming effect known as the greenhouse effect. The diagram uses arrows to represent the flow of solar and terrestrial radiation, and text boxes provide percentages to indicate the distribution of energy within various atmospheric layers. The use of colors (yellow for shortwave and red for longwave radiation) visually distinguishes between the types of radiation interacting with the Earth and its atmosphere.
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