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# Ponds and Lakes

## Ponds and lakes have characteristics; lakes have zonation.

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The Wreck of the Edmund Fitzgerald

### The Wreck of the Edmund Fitzgerald

Credit: United States Army Corps of Engineers
Source: http://en.wikipedia.org/wiki/File:Edmund_Fitzgerald-USACE.jpg

The SS Edmund Fitzgerald capsized in a severe early winter storm in Lake Superior in November 1975. All 29 crew members were all lost. (“The Wreck of the Edmund Fitzgerald” is the title of a song about the sinking by Gordon Lightfoot.)

#### News You Can Use

• Rough seas certainly contributed to the sinking of the Edmund Fitzgerald.
• Conditions in Lake Superior often generate a group of three rogue waves.
• Called “the three sisters,” each wave hits the ship before water from the previous wave drains off. By the third wave in a storm, a dangerous amount of water is on the ship.
• The captain of a nearby ship said that rogue waves were headed in the direction of the Edmund Fitzgerald just before the ship sank.
• Rogue waves can also come out of nowhere, even on a clear, calm day.

#### Can You Apply It?

1. Is a ship at sea in more danger from a tsunami or a rogue wave?
2. How might large waves and currents interact to form rogue waves?
3. What is one reason that rogue waves could form without a nearby current?
4. Why have scientists only been certain of rogue waves for about 20 years, but now there is a lot of documentation that they exist?

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