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Watch Out for Sludge

Ice the consistency of thick honey is called "sludge". This is water that is in an early stage of freezing and has not yet become solid.

The sea surface becomes thick and soupy and sometimes greasy in appearance. Sludge depth is usually not more than 12 inches / 30 cm.

Sludge offers little resistence to ships while in this state, but as it is about half way through the process of freezing, it can quickly turn into solid ice. Once it does that - you're trapped!

Experienced navigators know that venturing into a big "slurpie" can be dangerous - particularly if plunging temperatures turn it into a "popsicle".

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Arctic Library: Ice and Arctic
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Arctic Maps & Weather Reports


Double-click any unlinked word DICTIONARY: Just "double-click" any unlinked word on this page for the definition from Merriam-Webster's Student Electronic Dictionary at Word Central.
Arctic Library ARCTIC LIBRARY & GLOSSARY: Check this section for an index of the rest of the things you really need to know about the Arctic.
All sorts of Arctic Maps ARCTIC MAPS & WEATHER REPORTS: Maps of the Northwest Passage, explorers' routes, iceberg sources, Nunavut, the Arctic by treeline, temperature...
Links to related sites. ARCTIC LINKS: Even more information! Links to sites related to the Arctic and "Iceberg: the Story of the Throps and the Squallhoots".
A Guide to Arctic Sunrise and Sunset 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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