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Natural and manmade disasters
What is the impact of hurricanes on the natural and built environment
Causes and effects of natural disasters
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Recommended: Natural and manmade disasters
Hazards are possible sources of danger. Types of hazards are those
such as hurricanes, earthquakes and volcanic eruptions. A cause is
what makes something happen and is a reason for it happening. The two
types of hazards I will be outlining the causes for are hurricanes and
earthquakes.
A hurricane and tropical storms are cyclones. When the winds reach a
constant speed of 74 miles per hour or more, it is called a hurricane.
A hurricane is caused when a large mass of air is warmed up and the
warm humid air begins to rise. As the air rises, it cools and
condenses to cloud and rain. They are tropical storms. The hurricanes
winds blow in a large spiral around a calm centre called the ‘eye’.
The eye is usually 20-30 miles wide and the storm itself may have a
diameter of 400 miles. As a hurricane approaches, the skies begin to
darken and the winds grow stronger. The hurricane can bring torrential
rains, high winds, and storm surge as it comes close to land. A single
hurricane can last more than two weeks.
An earthquake is a shaking movement of the earth’s surface. It results
from faults. The earth’s surface is in continuous slow motion. This is
plate tectonics – the movement of rigid plates at the surface of the
earth in response to flow of rock within the earth. These plates cover
the whole surface of the earth. Since they are all constantly moving,
they rub against each other at the boundaries (for example, the San
Andreas Fault in California). They sink beneath each other, or spread
apart from each other (like the Mid-Atlantic Ridge). At such places
the motion becomes less smooth - the plates are stuck together at the
edges ...
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... into the areas were blocked or bridges were
destroyed. If the bridges had been built to survive a hurricane, aid
would be able to get to the areas sooner and save lives as they would
be able to reach people in time.
MEDC’s and LEDC’s are both affected by hurricanes, although MEDC’s are
able to respond to them quicker and more effectively then LEDC’s. Both
of them need funding so that they can research and monitor hurricanes
so that they can respond to them, but the difference between them is
that MEDC’s are able to provide themselves with funding as apposed to
LEDC’s who are unable to provide themselves with the funding required.
The research helps people to learn more about hurricanes and the more
people know about hurricanes, makes it easier for them to respond to
them in the right way so that they can save lives.
A few advantages would be that they are already popular and have a name for themselves, they offer training and support and it would be less of a risk.
Such greatness had innocuous and humble beginnings. Like all hurricanes that have existed, is existing, and will exist, the hurricane originated within the waters of the world and from the winds of the world. The temperate waters of the eastern North Atlantic Ocean gave rise to the storm upon August 31, 1900. Its birthplace was roughly 400 miles west of Africa’s Cape Verde Islands (Longshore).
Regina:The Early Years. (2014). Cyclone of 1912. Regina: The Early Years 1880 -1950. Retrieved March 7, 2014, from http://scaa.usask.ca/gallery/regina/central/cyclone.html
Hurricanes form over the ocean. Easterly waves, what hurricanes develop from, are long, narrow regions of low pressure which occur in ocean winds called trade winds. At first, these easterly waves can grow into something called, a tropical depression. A tropical depression occurs when winds are up to 31 mph. Then tropical depressions can be upgraded into a tropical storm if the winds reach speeds of 74 mph or less. Then finally a the storm can be bumped up into a hurricane if the winds reach 75 mph.
In the Unnatural Causes trailer, one of the speakers said “we carry our history in our bodies”. This statement means that the factors that we come across in daily life impact our health. The decisions one makes will affect his or her body in the future. For example, whether or not one avoids smoking or a poor diet will impact his or her health in the future. During an examination years down the road, it will be able to be determined whether or not that person was able to avoid smoke or junk food. In this way, our past is inscribed into our biology. The history carried in our bodies is not formed solely from conscious decisions-- much of our genetic past is molded by policies and social conditions (“Unnatural causes trailer”, 2008).
On February 1, 2003, the Space Shuttle Columbia was lost due to structural failure in the left wing. On take-off, it was reported that a piece of foam insulation surrounding the shuttle fleet's 15-story external fuel tanks fell off of Columbia's tank and struck the shuttle's left wing. Extremely hot gas entered the front of Columbia's left wing just 16 seconds after the orbiter penetrated the hottest part of Earth's atmosphere on re-entry. The shuttle was equipped with hundreds of temperature sensors positioned at strategic locations. The salvaged flight recorded revealed that temperatures started to rise in the left wing leading edge a full minute before any trouble on the shuttle was noted. With a damaged left wing, Columbia started to drag left. The ships' flight control computers fought a losing battle trying to keep Columbia's nose pointed forward.
When passing through the northeastern United States tropical cyclones are restructured by the course of extratropical transition. This is caused by the contact with strong westerlies that are associated with a mid latitude trough and causes an enhance in storm forward motion, vertical wind shear, and vorticity. An increase in storm forward motion also plays a role in the wind speed that is produced by the hurricane. Where the circulating winds and the entire storm is moving in a matching direction, the wind speed is amplified by the forward movement of the storm. In the Northern Hemisphere, the right part of a hurricane, looking in the way of the path in which it is moving forward, has the greater wind speeds and thus is the more dangerous part of the storm. Strong vertical wind shear within the troposphere also reduces tropical cyclone development. This makes the e...
A hurricane is a tropical storm exceeding 74 mph in wind speeds. It is a low-pressure system which forms when there is a warm & moist environment over the ocean. Hurricanes are named to easily identify them. The first hurricane of the year starts with the letter 'A', the second 'B', and continuing. Hurricanes are only classified as hurricanes when they have wind speeds of 74 mph or more. There are 3 other classifications hurricanes get through to become hurricanes: a tropical disturbance, a tropical depression(0-38 mph), and a tropical storm(38-73 mph).
August 23rd, 2005; Hurricane Katrina, formed over the Bahamas, hitting landfall in Florida. By the 29th, on its third landfall it hit and devastated the city of New Orleans, becoming the deadliest hurricane of the 2005 season and, one of the five worst hurricanes to hit land in the history of the United States. Taking a look at the years leading to Katrina, preventative actions, racial and class inequalities and government, all of this could have been prevented. As presented in the newspaper article, An Autopsy of Katrina: Four Storms, Not Just One , we must ask ourselves, are “natural” disasters really natural or, are they a product of the people, who failed to take the necessary actions that needed to be taken?
Hurricanes are gigantic, swirling, tropical storms that are created with a wind speed over 160 miles (257 kilometers) per hour. It gives off more than 2.4 trillion gallons (9 trillion liters) of rain each day. Hurricane forms in the Southern Atlantic Ocean, Caribbean Sea, Golf of Mexico, and in the Eastern Pacific Ocean. According to www.weatherwizkids.com , a hurricane usually lasts for a week. Hurricane mostly occurs at mid-August to late October and occurs about five to six times a year. A hurricane begins at a tropical disturbance in warm ocean water with a temperature of at least 80 degrees Fahrenheit (26.5 degrees Celsius). The center of a hurricane is call the “Eye of the Hurricane” and is about 20-30 miles wide (32-48 kilometer wide). The eye is the calmest part of a hurricane and surrounding the eye is something call the “Eye Wall". When a hurricane makes a...
Natural Disasters can occur anywhere at anytime. Some are more predictable than others, but they all bring hardship to everyone’s life. Examples of natural disasters are Earthquakes (Haiti 2010), Tornadoes, Tsunami, Hurricanes, Wild Fires, Winter Storms, Heat waves, Mudslides and Floods. Regardless of what kind of disaster occurs, bottom line, everyone needs to be prepared mentally and physically to deal with the aftermath. Education is the first step to prepare you to deal with any major disaster. Three of the major disasters that can potentially disrupt normal day to day operations in our lives, are Hurricanes, Tsunamis and Tornadoes.
Earthquakes belong to the class of most disastrous natural hazards. They result in unexpected and tremendous earth movements. These movements results from dissemination of an enormous amount of intense energy in form of seismic waves which are detected by use of seismograms. The impact of earthquakes leaves behind several landmarks including: destruction of property, extensive disruption of services like sewer and water lines, loss of life, and causes instability in both economic and social components of the affected nation (Webcache 2).
Hurricane, name applied to migratory tropical cyclones that originate over oceans in certain regions near the equator, and particularly to those arising in the West Indian region, including the Caribbean Sea and the Gulf of Mexico. Hurricane-type cyclones in the western Pacific are known as typhoons. Hurricanes are high winds that move in a circular motion, around an eye (a low pressure center of a storm). The diameter of the area affected by winds of destructive force may exceed 150 mi. Gale winds prevail over a larger area, averaging 300 mi in diameter. The strength of a hurricane is rated from 1 to 5. Obviously 1 is the lowest and 5 is the highest strength. Hurricanes sometimes produce over 250 mm (10 in) of rain and lead to extensive flooding. Which in turn can cause another problem in its self.
A tropical cyclone is a warm-core, low-pressure system producing high winds that spiral counter-clockwise (in the northern hemisphere) and inward, with the highest winds near the center of circulation. The large counter-clockwise and inward flow is characteristic of the nearly symmetric structure of tropical cyclones as they are comprised of rain bands spiraling toward the center. These warm-core storms typically form over the tropical and subtropical oceans and extract their energy from the heat content of the oceans.