Environment Report: Tidal Power In The Bay of Fundy
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 t...
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...e so that when a sufficient water level
was reached between the land and sea sides of the dam . a mill could use tidal
water to mix with the fresh water to turn the waterwheel that provided power for
grinding grain. The first mill in the would was built in 1607 by Samuel de
Champlain on the Lequille River. By 1910 Turnbull and an American engineer,
designed a double basin scheme that would cross the international boundary
between New Brunswick and Maine.
CONCLUSION
Given the grave environmental challenges such as global warning or environmental
pollution facing many kind in the coming century and because oceans play such a
very important role in governing the degree of global warming, fisheries yield,
and degrees of pollution along our beaches, the study of the tides through a
variety of means such as ship surveys, and remote sensing will lead to a better
understanding of how the oceans work. The hope is that as a result, we will
leave behind for our children a world that is both livable as well as enjoyable
in all its majesty . If we an avoid oil spills into the ocean the water and
environment will be more beautiful and ecologically safe for all living things.
Yes this feature is the result of erosion and depositional processes however, it is not associated with the current water course. This feature may be the result of a Gilbert type delta that once occupied this area. Gilbert type deltas have three main components; topsets, foresets and bottomsets. Topsets are fluvial sediments (primarily sandur deposits) that were deposited on the subaerial delta surface. Erosive events occurring on the upper forslope can result in downslope channels and chutes. These features are then eroded by either strong currents or by debris flow resulting in these channels and chutes to become filled. Foresets are a combination of sand and gravel facies. The are deposited by gravitational processes on the delta foreslope and the grains tend to become finer and more angular downslope. Bottomsets consist of fine grained silts and clay and are deposited at the foot of the delta front.
coast (as shown in pictures 1 & 2). The area of sea is subject to the
The tidal salt marshes make vital contributions to the ecosystem in Jamaica Bay. The marshes help spawning processes and are primary nursery for species important to both recreational and commercial uses, providing protection from storm surges, and also removing pollutants and other toxic substances, which as a result, acts as a natural filter, improving the water quality in the bay. Salt marshes are low lying, grasslands that periodically become overwhelmed and drained by high tides. The fish and shellfish nurseries and are also a feeding ground for various species of wildlife in the ecosystem. They support a variety of invertebrates such as mussels, shrimp, oysters and horseshoe crabs that are key elements of the estuarine ecosystem. However, throughout the past few decades, the salt marshes at Jamaica Bay has significantly declined which created a tremendous negative impact on the general public in addition to the deterioration on the living habitats in the area. Many factors contribute to the decline such as sediment depletion, neighboring developments, increased tidal ranges, and especially nitrogen loading from untreated sewage. Although the damages done were unintentional, much of it was occurred due to negligence. As awareness has increased, restoration efforts have escalated as well as various groups respond well to mitigate the losses.
Located on the lower east coast of Florida the city of Miami is bordered by the Biscayne Bay and the Atlantic Ocean. Going east from the city the islands of Key Biscayne and Miami Beach help shelter the bay from the Atlantic Ocean, giving Miami a naturally protected harbor. The elevation of the city never rises above 40 feet and within most neighborhoods the elevation stays under 10 feet. The highest undulations are the Miami rock ridge which is found along the coast. A majority of the city lies on the shores of Biscayne Bay which contains hundreds of natural and artificially created islands, the largest being Miami Beach and South Beach.
The Sun’s radiation heats the upper atmosphere, sending the energy toward the earth’s surface and finally mixes with the planet’s counter-rotational currents, creating jetstream flows. The winds flow over the ocean’s surface creating friction that spawns chops, pushing up the seas forming perfect bands of open ocean swell. Pushed on by gravitational forces, the swells speed away from the winds that they came from, moving across the deeps until they feel the drag of the shallows near the coast. As the swells rise up out of themselves, they peak, curling into the liquid dreams that we surfers ride (Kampton 4).
eddies, slightly spinning, then all of a sudden, it slaps into a rock or gets sucked beneath the water by a small whirlpool. After doing this enough times one will realize
The Hudson plains are in parts of Ontario and Manitoba. Their area is about 350 000 km squared. The west edge of the Hudson Plains is around Churchill in north Manitoba, the eastern edge is around Fort Rupert, the northern edge borders Hudson Bay and James Bay and the southern edge is near Kapuskasing, Manitoba. Moosonee and Churchill are major cities in the Hudson Plains area, and lesser known cities include Attawapiskat, Fort George, Eastmain, Fort Albany, Lake River, Winisk, Fort Severn, and Shamattawa.
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The Leadership Challenge by Kouzes and Posner (2007) is the result of twenty years of research on the factors that influence and create great leadership. Through studies and stories from leaders with various backgrounds throughout the world, the practices and characteristics that create great leadership are delineated. Leadership is viewed not as a group of inherent characteristics, but as learned behavior that anyone can achieve. The goal of Kouzes and Posner’s book is to inspire and educate leaders through transformational leadership. As such, leadership is about mobilizing others to become and do extraordinary things.
Ancient Egypt's religion was a major part of what made them such a unique civilization. Although they began like many other ancient civilizations, on a river side, they quickly became one of the longest lasting empires the world had ever seen. Their religion helped to create this by introducing an unchanging element into their culture. Religion was also a very strong part of their government. Both of these factors helped to add to their stability and adaptability which was one of the most impressive in both the ancient and the modern world. Ancient Egypt's culture, government, adaptability and overall stability came from their extremely intricate and ever present religion.
Many Scholars characterize the core qualities and skills necessary for an effective leader. Useem defines leadership as “Creating a vision and translating that vision into actions”. Historically, an effective leader was assumed to be exceptionally knowledgeable, authoritative, and dominate. Those leaders applied the command and control method to lead an organization. With the passage of time, this definition has been changed. The modern definition of an effective leader is honest, courageous, trustworthy, inspirational, and result-oriented. Today’s leaders create shared values and vision, and empower others to achieve their targets.
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