Environment Report: Tidal Power In The Bay Of Fundy

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Term Paper Title	Environment Report: Tidal Power In The Bay Of Fundy
# of Words	1499
# of Pages (250 words per page double spaced)	6

Environment Report: Tidal Power In The Bay of Fundy

Environment Report: Tidal Power In The Bay of Fundy

Prepared for Bill Andrson
Professor at St.Lawrence College for Environmental Science.

By

November 22,1996

INTRODUCTION

     The Bay of Fundy, which is found off the shores of Nova Scotia, has the
highest tides in the world .
     Extraordinary tides occur when the tidal wave length is two to four
times  the length of the Bay. By virtue of blind luck or physics, the tide is
amplified into a standing wave, like water sloshing in a bathtub. For a breaking
wave to form, the surging tide must meet an obstacle. When the ocean meets the
river going in the opposite direction, the sea hesitates, piles up behind the
front line, and advances anew in a tidal bore.
     Usually the ingredients occur during a new moon with 15 feet tides and
the opposing force of the Shubenacadie river to display the true Bay's
magnificence.
     This part of St. John is divided into 3 main areas: the main Harbor,
Courtenay Bay and the Outer Harbor. These areas are influenced by the Bay of
Fundy tides and the currents of the  St John River which flow out of the main
Habour into the Bay.
     This section also experiences two high and two low tides each day (semi
- diurnal), with a tidal range varying from 15 to 18 feet, depending on the type
of tides. High - water heights vary from 22 to 28 feet and low - water heights
vary from 0 to 7 feet above chart data. Because of these semi - diurnal tides
and the action of the St John River, slack water in the Habour occurs at
approximately tides and not at high or low water as would be the case at other
parts.

THE RHYTHMIC RISE AND FALL

     In the Bay of Fundy, the tides are spectacularly large. While the rise
and fall of sea level due to tides is the most apparent aspect, it is also the
tidal currents that direct magnification of tides, and the sea level rises or
declines are due to resulting convergences and divergencies. These tides rise
and fall over a range that is greater than 50 feet; such  massive water movement
combined with accumulation of sediment through erosion has built up a large salt
marsh that is a feeding station for migrating shore birds. The low fundy also
feeding a ground for marine life including whales. A long time ago between about
15000 and 10000 year ago at the glacier retreated from the last ice age, part of
Georges Bank were dry land. Such as fragment of trees and mammoth teeth from
this are still found occasional in fishing trave...

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