What is difference between solar radiation and global radiation?

In summary, solar radiation is em radiation emitted by the Sun. It is short wave radiation, comes in many forms, and is very important to life on Earth.
  • #1
shivajikobardan
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Homework Statement
What is difference between solar radiation and global radiation?
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Solar radiation-:

it is em radiation emitted by son. it is short wave radiation. it comes in many forms.
1) visible light
2) radio waves
3) infrared
4) x rays
5) uv rays

Global radiation-:
it is sum of direct and diffuse radiation arriving at a ground.

What are the differences between these two?
 
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  • #2
shivajikobardan said:
What are the differences between these two?
What do you think? (Hint: there is something important between the Sun and the ground.)
 
  • #3
DrClaude said:
What do you think? (Hint: there is something important between the Sun and the ground.)
Hmm not sure
maybe solar radiation doesn't enter the ground?
 
  • #4
shivajikobardan said:
Hmm not sure
maybe solar radiation doesn't enter the ground?
I'm sure that you can feel the Sun's rays when it is shining on you standing on the ground.
 
  • #5
Look at the first picture in this article: https://www.weather.gov/jetstream/energy.
1651069294844.png

Solar radiation is the blue arrow labelled 100 at the top.

Global radiation consists of:
  • Direct (solar) radiation (the blue arrows labelled 47 (absorbed) at the bottom and 7 (reflected)) plus
  • Indirect (atmospheric) radiation (the red arrow labelled 98 at the bottom).
 
Last edited:
  • #6
DrClaude said:
What do you think? (Hint: there is something important between the Sun and the ground.)
 
  • #7
pbuk said:
Look at the first picture in this article: https://www.weather.gov/jetstream/energy.
View attachment 300650
Solar radiation is the blue arrow labelled 100 at the top.

Ground radiation consists of:
  • Direct (solar) radiation (the blue arrows labelled 47 (absorbed) at the bottom and 7 (reflected)) plus
  • Indirect (atmospheric) radiation (the red arrow labelled 98 at the bottom).
it is global radiation...it is not ground radiation...are they same?
 
  • #8
shivajikobardan said:
it is global radiation...it is not ground radiation...are they same?
Yes sorry, that was a typo, I have edited it.

I am not sure what sources you are using to learn about this but I think the US government weather site I linked to is a good one.
 
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1. What is solar radiation?

Solar radiation refers to the energy that is emitted by the sun in the form of electromagnetic waves. These waves include visible light, infrared radiation, and ultraviolet radiation.

2. What is global radiation?

Global radiation, also known as total radiation, is the total amount of solar radiation that reaches the Earth's surface. It includes direct radiation from the sun, as well as diffuse radiation that is scattered by the atmosphere.

3. How are solar radiation and global radiation different?

The main difference between solar radiation and global radiation is the direction in which the radiation is received. Solar radiation is direct and comes straight from the sun, while global radiation includes both direct and diffuse radiation that is scattered from all directions.

4. What are the effects of solar radiation and global radiation on Earth?

Solar radiation is essential for sustaining life on Earth as it provides the energy for photosynthesis and helps regulate the Earth's climate. Global radiation also plays a crucial role in sustaining life as it contributes to the Earth's overall energy balance and influences weather patterns.

5. How are solar radiation and global radiation measured?

Solar radiation is typically measured using instruments such as pyranometers, which measure the amount of direct radiation from the sun. Global radiation is measured using instruments such as pyranometers and pyrheliometers, which measure both direct and diffuse radiation.

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