Short wavelength infrared radiation emitted by the Sun enters the atmosphere and travels to the Earth’s surface
Greenhouse gases absorb some reflected long wavelength radiation before re-radiating it as heat energy, some of which heads back to Earth
The temperature at the Earth’s surface increases
The Earth absorbs a portion of this radiation, but longer wavelength radiation is reflected back into the atmosphere
The process you’re describing relates to the greenhouse effect. Here’s a concise breakdown:
1. Solar Radiation: The Sun emits short wavelength infrared radiation, which passes through the Earth’s atmosphere and reaches the surface.
2. Absorption and Re-radiation: The Earth absorbs a portion of this energy and warms up. It then emits longer wavelength radiation (infrared) back into the atmosphere.
3. Greenhouse Gas Interaction: Greenhouse gases, like carbon dioxide and methane, absorb some of this longer wavelength radiation. Instead of allowing all this heat to escape into space, they re-radiate some of it back towards the Earth.
4. Temperature Increase: This process leads to an increase in the Earth’s surface temperature, contributing to the overall warming of the planet.
This cycle is essential for maintaining a habitable climate, but excess greenhouse gases can enhance this effect, leading to climate change. If you need further details or a more advanced explanation, feel free to check the extended services page!