Weather Things: Coronas

The video tutorial explores various atmospheric optical phenomena caused by light interacting with water droplets and ice crystals. It covers the Corona around the moon, the Glory seen from airplanes, iridescence in high clouds, and fogbows similar to rainbows. Each phenomenon provides meteorologists with insights into atmospheric conditions.

What causes the bright area of color known as a Corona around the moon?

• Reflection of light in ice crystals

• Refraction and scattering of light in water droplets

• Absorption of light by atmospheric gases

• Diffraction of light in dust particles

Where does a glory form in relation to the sun?

• Opposite the sun

• Directly above the sun

• To the right of the sun

• To the left of the sun

What is the main difference between a rainbow and a fogbow?

• A fogbow is formed by ice crystals

• A fogbow is more colorful than a rainbow

• A fogbow has much less color than a rainbow

• A fogbow is found in the direction of the sun

What atmospheric condition is indicated by iridescence?

• Presence of large water droplets

• High thin clouds with small and uniform water droplets or ice crystals

• Low thick clouds with varying droplet sizes

• Absence of clouds

What do all the colorful phenomena discussed in the video have in common?

• They are all caused by the reflection of light in ice crystals

• They are all caused by the refraction of light in water droplets or ice crystals

• They are all visible only at night

• They are all caused by the absorption of light by atmospheric gases