South Korea

Tidal power is already currently located in a number of countries including South Korea, the United Kingdom, France, Russia, China, and the Netherlands. The map below shows the countries that are involved with tidal energy.

Canada is one of the few countries to have begun to harness tidal energy; the country’s only tidal station is located in Nova Scotia, in the Bay of Fundy. Our oceans are a vast source of energy that can be harnessed to produce different forms of usable energy including tidal and wave energy.

Disadvantages of Tidal Energy Placing turbines in tidal streams is complex, because the machines are large and disrupt the tide they are trying to harness. The environmental impact could be severe, depending on the size of the turbine and the site of the tidal stream. Turbines are most effective in shallow water.

Waves are dependent on three major factors – wind speed, wind time and wind distance.

In the deep ocean, tsunamis can move as fast as a jet plane, over 500 mph, and can cross entire oceans in less than a day….3. Tsunami Characteristics.

An earthquake followed by a landslide in 1958 in Alaska’s Lituya Bay generated a wave 100 feet high, the tallest tsunami ever documented.

Tsunamis can travel as far as 10 miles (16 km) inland, depending on the shape and slope of the shoreline. Hurricanes also drive the sea miles inward, putting people at risk. But even hurricane veterans may ignore orders to evacuate.

IF YOU ARE UNDER A TSUNAMI WARNING:

1. First, protect yourself from an Earthquake.
2. Get to high ground as far inland as possible.
3. Be alert to signs of a tsunami, such as a sudden rise or draining of ocean waters.
4. Listen to emergency information and alerts.
5. Evacuate: DO NOT wait!
6. If you are in a boat, go out to sea.

“A person will be just swept up in it and carried along as debris; there’s no swimming out of a tsunami,” Garrison-Laney says. “There’s so much debris in the water that you’ll probably get crushed.” Eventually, the wave will pull back, dragging cars, trees, and buildings with it.

Being in the water (swimming pool or any other water) is no protection from the huge wave of a tsunami (sometimes more than one). You cannot just hold your breath and wait for the wave to pass over you. It will pick you up like it uproots a palm tree and carry you away.

2. The ocean could be affected by high tsunami and/or pressure waves in the case of a large asteroid or comet impact. Most current submarines can survive at a depth of 400 m, so they might survive long pressure spikes created by the waves above them as high as 200–400 m, but not kilometer size waves.

Smoking was prohibited on submarines for health reasons, not just for smokers but for the entire crew who were constantly exposed to their second-hand smoke in the closed atmosphere of the submarine. Being smoke-free also lessened the load on the atmosphere control systems.

It can be quite spectacular sometimes. It happens on rare occasions. Whales make sounds that can be heard by the submarine sonar. Submarines usually try to avoid the whales, but on the rare occasions that a collision occurs, it is the whale that suffers the worst of it.

United States

Because water is much more dense than air, tidal energy is more powerful than wind energy. Unlike wind, tides are predictable and stable. Where tidal generators are used, they produce a steady, reliable stream of electricity.

First off, tidal energy is a clean renewable resource which is more efficient than wind energy due to the density of water and more efficient than solar energy due to its high ~80% conversion efficiency. Tides are also more predictable than wind energy and solar energy, therefore more reliable.

Wave and tidal energy harvesting has been around for a few decades. But it has only been in recent years that it has started to become more realistic due to advance in research and technology. Some speculates that wave and tidal energy can supply at least 10 percent of the world’s energy consumption.

The United States does not have any commercially operating tidal energy power plants, although several demonstrations projects are in various stages of development.

Maine

(i) These resources are capable of being used over and over, again and are capable of regeneration. ADVERTISEMENTS: (ii) They are in-exhaustible resources.

Natural resources are materials or things that people use from the earth. There are two types of natural resources. The first are renewable natural resources. They are called renewable because they can grow again or never run out.