 A Pot of Ice at the End of the Fogbow? A "fogbow" is caused by a process similar to that causing rainbows, but because of the very small size of the water droplets, the fogbow has little color - making it appear white. Very cold air can't hold as much moisture as warmer air, and therefore fogbows often appear in cold areas.
The radius and thickness of a fogbow also depend on droplet size. As the droplets get smaller, the fogbow gets broader (usually about twice as wide as a normal rainbow) but its radius decreases. Unscientifically put, they're paler, shorter and fatter.
Click pictures for more information and credits. Library: Environment/Atmosphere, Arctic Links: Environment, Arctic Arctic Maps & Weather Reports |
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DICTIONARY: Just "double-click" any unlinked word on this page for the definition from Merriam-Webster's Student Electronic Dictionary at Word Central. |
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ARCTIC LIBRARY & GLOSSARY: Check this section for an index of the rest of the things you really need to know about the Arctic. |
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ARCTIC MAPS & WEATHER REPORTS: Maps of the Northwest Passage, explorers' routes, iceberg sources, Nunavut, the Arctic by treeline, temperature... |
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ARCTIC LINKS: Even more information! Links to sites related to the Arctic and "Iceberg: the Story of the Throps and the Squallhoots". |
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GUIDE TO ARCTIC SUNRISE & SUNSET: How much sunlight or darkness is there in the Arctic on each day of the year? |
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