Geog. 111 Notes 6

Geog. 111 Notes 6 - -atmospheric optics(optical...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
- atmospheric optics (optical phenomena) : -reflection-angle of incidence equals angle of reflection -refraction-light ray bends toward the normal (line that is perpendicular to surface) when entering water (this is due to different optical densities); critical angle is the angle at which light can no longer refract out of water, and instead gets refracted back into water; this contributes to appearance of rainbows) -refraction also explains why stars appear to twinkle (turbulence, moisture of air can refract light, causing stars to appear to twinkle) -effects of scattering: crepuscular rays (can be seen when Sun is setting behind mountains, clouds; the mountains block most of the incoming sunlight, but some scattered beams rise above the mountains); effects of multiple scattering (very dense clouds are effective at scattering all incoming sunlight, thus the bases of the clouds are void of light and very dark; this is relevant to climate change because if clouds are
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Ask a homework question - tutors are online