Week 1 Observation
Sunset
Context :
I found research about the variety of colours in sunsets.
When the sun is above the horizon, it generally appears white. As the sun sinks toward the horizon, sunlight enters the atmosphere at a much lower angle and air molecules scatter away from the short wavelengths of light (violet and blue) and only remains the longer wavelengths of light (yellow, orange and red).
http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/opt/air/ sun.rxml
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Method :
The photos I use is that I took when I went to St Kilda Beach at the weekend. I create colour palettes that record the colours of the sky and the clouds in different sunset periods. And Then, I made the sunset animation by TVPaint.
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Response :
By observing the whole sunset, it is clear that the hue of the sky transfer from blue to orange. Besides, the clouds also are getting saturated during the sunset.
After the sun is totally below the horizon, the sky still stays kind of brightness due to the refraction and the scattering of the sunlight by atmospheric particles. The sky even looks even a bit lighter than the sky in the sunset and the bottom of the clouds are lightened by the sun.
What’s more, the highlights and shadows of the cloud are changing, while the sun is below the horizon.