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  2. Atmospheric optics - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_optics

    This process of reflection/absorption is what causes the range of cloud color from white to black. [19] Other colors occur naturally in clouds. Bluish-grey is the result of light scattering within the cloud. In the visible spectrum, blue and green are at the short end of light's visible wavelengths, while red and yellow are at the long end. [20]

  3. Atmospheric circulation - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_circulation

    Ascent (negative values; blue to violet) is concentrated close to the solar equator; descent (positive values; red to yellow) is more diffuse but also occurs mainly in the Hadley cell. The wind belts girdling the planet are organised into three cells in each hemisphere—the Hadley cell, the Ferrel cell, and the polar cell. Those cells exist in ...

  4. Diffuse sky radiation - Wikipedia

    en.wikipedia.org/wiki/Diffuse_sky_radiation

    The blue sky spectrum contains light at all visible wavelengths with a broad maximum around 450–485 nm, the wavelengths of the color blue. Diffuse sky radiation is solar radiation reaching the Earth 's surface after having been scattered from the direct solar beam by molecules or particulates in the atmosphere .

  5. Green, red and purple: The colorful science behind the ...

    www.aol.com/weather/green-red-purple-colorful...

    Red is also created by oxygen but in the highest part of the atmosphere at more than 150 miles above the Earth's surface. Purple and blue are related to nitrogen, with purple lights appearing ...

  6. Why the sky turned purple during Hurricane Milton - AOL

    www.aol.com/weather/why-sky-turned-purple-during...

    The skies over St. Petersburg, Florida, turned purple as Hurricane Milton approached the Florida coast last week, a phenomenon that has been seen in other hurricanes such as Delta, Dorian, and ...

  7. Color temperature - Wikipedia

    en.wikipedia.org/wiki/Color_temperature

    Rayleigh scattering of sunlight by Earth's atmosphere causes the blue color of the sky, which tends to scatter blue light more than red light. Some daylight in the early morning and late afternoon (the golden hours ) has a lower ("warmer") color temperature due to increased scattering of shorter-wavelength sunlight by atmospheric particulates ...

  8. These magnificent purple and green lights aren’t auroras ...

    www.aol.com/magnificent-purple-green-lights-aren...

    Such is the case for the sweeping purple and green lights that can hover over the horizon in the Northern Hemisphere. The phenomenon looks like an aurora but is in fact something entirely ...

  9. Afterglow - Wikipedia

    en.wikipedia.org/wiki/Afterglow

    Afterglow with its bright segment and purple light above, interrupted by crepuscular rays. An afterglow in meteorology consists of several atmospheric optical phenomena, with a general definition as a broad arch of whitish or pinkish sunlight in the twilight sky, consisting of the bright segment and the purple light.