"If one takes time to look there are many beautiful displays of light that are formed by the light bent as it passes through or reflected from both rain drops and ice crystals.  Most of these are seen during the day, but some are also seen at night when the moon is more than half full.  Even though the Northern Lights are not produced from sunlight or moonlight, they can also bring great pleasure to the observer. "


View the Webinar by clicking here: http://youtu.be/YsAMczq79nA

Resources:
http://www.atoptics.co.uk/

Atmospheric Halos (2006) -- Walter Tape and Jarmo Molianen
Rainbows, Halos and Glories (1980) -- Robert Greenler
Clouds of the World (1972) -- Richard Scorer
Field Guide to North American Weather (1991) -- David Ludlum
Wild About Weather (2004) -- Edward Brotak
The Snowflake, Snowflakes and Field Guide to Snowflakes (2003) -- Kenneth Libbrecht
The Weather Book (1997) -- Jack Williams (USA Today