Atmospheric System Unit 7 (6.1-6.4)

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11 Terms

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Atmosphere

Gases form the layers surrounding the Earth, essential for supporting life and regulating climate. It consists of Nitrogen (78%), oxygen (21%), and trace gases like argon and carbon dioxide

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Greenhouse gases

Are gases in the atmosphere, such as carbon dioxide and methane, that trap heat and contribute to the greenhouse effect, influencing global temperatures and climate.

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Albedo

The reflectivity of a surface that reflects heat into the atmosphere and space

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Differential Heating

  • Uneven heating of Earth's surface leads to atmospheric circulation.

  • Solar radiation is more intense at the equator and weaker at the poles.

  • This creates temperature gradients that drive atmospheric movement.

<ul><li><p><span style="background-color: transparent;">Uneven heating of Earth's surface leads to atmospheric circulation.</span></p></li><li><p><span style="background-color: transparent;">Solar radiation is more intense at the equator and weaker at the poles.</span></p></li><li><p><span style="background-color: transparent;">This creates temperature gradients that drive atmospheric movement.</span></p></li></ul><p></p>
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Clouds

  • Reflect(Albedo) Infrared Radiation from the sun, cooling earth, especially after temperature increases because more evaporation=more clouds

  • Absorbs Infrared Radiation from the Earth’s surface back into the Earth, increasing/trapping heat and increases temperature

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Albedo

How reflective surfaces are to the sun’s heat; more=cooler temperature

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Infrared Radiation/Solar Energy

Energy from sun. 30% of the energy is reflected back into space, and 70% is absorbed by Earth. Earth's surface emits infrared radiation, which is absorbed and re-emitted by greenhouse gases.

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Electro magnetic radiation

Electromagnetic radiation is a form of energy that is propagated through space or matter in the form of waves at speed of light 

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UV radiation

Ultraviolet (UV) radiation is a form of electromagnetic radiation emitted by the sun that is harmful to plants and animals such as skin aging, wrinkling, skin cancer, worse plant growth, and DNA damage

It is categorized into three main types based on wavelength:UVA , UVB, UVC

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Ozone layer

The ozone layer is a region in Earth's stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation, preventing a lot of it from reaching the Earth’s surface.

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