Sign Up Now
Get instant access to over 1 million+ study documents
OR
Already registered? click here to login
By creating your account, you agree to our terms of service, privacy policy and student honor code.
¶ … motion of water. In the Ocean there are three major types of currents; Tidal, Coastal, and Surface Ocean.
Coastal currents are movements of water that are located near the coast and are influenced by wind, waves and land formations. Surface Ocean currents are currents that are located throughout the oceans, involve much more complex influences like global wind systems, the spin of the earth, salinity, and water temperatures.
Normally wind patterns on the earth follow a cycle of circulation between the equator and the poles. But because the earth rotates on it's axis, these normally north and south wind patterns develop a slight curve, called the Coriolis effect. In the northern hemisphere this effect causes the winds to curve to the right, in the southern hemisphere, to the left. As the winds blow on the surface of the oceans, it drags the surface of the water in the same direction as the winds. This causes the major surface currents to follow flow in a circular pattern, clockwise in the northern hemisphere and counter clockwise in the southern.
D. The Coriolis effect creates a circular current...
The wind can cause surface currents, but the mechanism behind the circular system is called the global conveyor belt. When warm water is dragged by wind currents to the polar regions, it becomes cold, and cold water sinks. As it sinks, it comes under the influence of other deep water currents which flow in the opposite direction, toward the equator. Currents at deeper levels flow in opposite directions because of the Ekman Spiral; an side effect of the Coriolis effect. The spin of the earth causes the flow of water either slightly to the right, or the left; but as one goes deeper into the ocean, this effect becomes greater and greater until the water is actually moving in the opposite direction.
E. Traditionally ocean current have been measured by the simplest of means; usually an observer and two stationary points. An object, called a "drifter," would be dropped into the water, and the time it took to travel from one point to the other was measured. The observer could then calculate the velocity of the current. While today's seafarers use the same…
A. The predicted high tide is to take place at 09:51 GMT, and be 1.67 meters. The low tide is to take place at 16:42 GMT, and be -0.16 meters. This is not the same time as 5/8/2011, primarily due to the moon's influence on the tides and the fact that the moon will not be in the same position relative to the earth two days in a row.
B. On 5/9/2011 the actual high tide was 1.702 meters, .035 meters higher than predicted, while the actual low tide was -0.035 meters, 0.125 meters less than predicted. Meaning the tide was supposed to go to - 0.160 meters, but only dropped to -0.035 meters. This could be explained by wind patterns pushing water toward shoe, increasing water levels during high tide, but reverse winds could push the water away from shore during low tide, making low tide even lower. Increased and decreased movements of coastal currents can also keep water moving away from the shore, decreasing tide levels, or they could keep more water available for use in tides, increasing tide levels.
7. In the past 100 years, the sea level, according to the measurements at the San Francisco Station Number 9414290, the sea level has risen 0.66 feet, or 20,11 cm. This is a rate of 2.01 mm (+/- 0.21 mm) per year. One possible factor that could have had an effect on sea levels generally increasing over the past 100 years could be increased global temperatures melting more of the polar icecaps, increasing the total amount of water in the sea. Another could be the increase in fresh water in the salt water oceans. This can have an effect of the global conveyor belt system of ocean currents; slowing them down. A slow down in the overall ocean current will allow more water to be present near the shores, making increased tide levels more pronounced.
The Leblanc alkali production processes were especially pernicious, but they followed along the lines of previous industrial processes. In other words, the first British environmental legislation was a response not so much to a qualitative change in industrial processes and their environmental impact but more to a quantitative increase in sources of pollution that had up to that point been (if only barely) tolerable. Legislation Arising From Public Anger At the
China Sample California's costal ocean region is characterized with both positive and negative attributes. The California Coastal Region is along the coast of the Pacific Ocean. This area is a beautiful, desirable area to live in, causing real estate to be among the highest in the United States. In fact, this area was one of the fastest to recover after the great recession of 2008, due primarily to its natural beauty.
In fact, the entire damage was caused by the tsunami itself along with other factors like the geology and geography of the region. The damage that the tsunami caused to mainland India, a seismically quiescent region, was concentrated mainly on the eastern coastline but some damage due to diffraction also occurred on the southernmost tip of the western coastline. A factor which played a major role in the scale
"Hopefully, I am evolving as an artist and a designer, and Digital Kitchen seems to be a place that [offers me the best] chance at getting to the next level" (Remson, 2002, p. 6). There are always "next levels" for Carson. Looking at his design for the book the Architecture of Patterns, at first the eye sees the + signs and interprets them as crosses in a cemetery. A closer
Weathering is a process that happens to surface rocks based on the particular environment in which the rock is located. The two types of weathering are physical and chemical. Chemical weather is a process in which the internal crystals of rocks undergo chemical changes based on environmental conditions. If rock is exposed to water over a long period of time, for instance, it breaks down and often sand and clay
Groundwater & Hydrology Water is the most cast off natural material in the earth. Irrespective of variations in its supply with the pace of time and location its aggregate quantity remains constant. The transformation of the water takes place through a continuation process referred to as hydrological cycle deriving its momentum through the solar energy and gravity. Down pouring of rain consequent upon condensation of clouds are extracted by the roots