This website uses cookies to ensure you have the best experience. Learn more

An Essay On Tropical Cyclones

801 words - 3 pages

A tropical cyclone is a particular type of lowpressure system. It is called a hurricane in theUnited States and a typhoon in Asia. Tropicalcyclones are areas of warm, moist air risingrapidly. The upward ¯ow of air is de¯ected by theCoriolis effect (winds de¯ected by the Earth'srotation), creating a rotation around a centralcore, known as the `eye'. Tropical cyclones areoften accompanied by very strong winds (gusts ofover 300 kilometres per hour have been recorded),torrential rain (1800 millimetres in 24 hours havebeen recorded) and very rough seas.A storm surge can occur when a tropicalcyclone approaches or crosses a coastline. Thevery low atmospheric pressure and the stress ofstrong winds on the sea surface produce a rise insea level above the normal tide level (see the diagram).Among the destructive and death-dealingfeatures of tropical cyclones, sea action and¯oods are ranked as more signi®cant than winds.Tropical cyclones need the energy provided bywarm water vapour (sea waters of at least 27°Celsius). Usually they die out if they move inlandaway from the water vapour, or out of the tropics,away from the warmth. This is why tropical coastalareas, such as the Caribbean Sea (CentralAmerica), the north-west Paci®c and north-eastAustralia, between 5° and 15° north and south, arecommonly affected by tropical cyclones.The formation of a tropical cycloneHugecumulonimbusclouds form.Out¯ow`Eye' of thecycloneWarm airspirals upquickly.Cool air ¯ows into the centralarea to replace rising air.Warm seawater isevaporatedand rises up.The map shows the paths of major Australiancyclones since 1970. Tropical cyclones occur innorthern Australia between December and April,with the greatest activity usually occurringbetween January and March. The number ofcyclones varies considerably from year to year, thefrequency usually determined by the temperatureof the oceans in the tropical waters around northernAustralia. The Australian Bureau of Meteorologytracks an average of ten cyclones per year in theAustralian region. Of these, six may be expected tocross the Australian coast. We will examine twomajor tropical cyclones that have hit different partsof Australia and their effects on people.Major Australian cyclones since 1970On 20 December 1974, a low pressure systemseveral hundred kilometres north of Darwin wasnoticed by the Bureau of Meteorology. By late thenext day, satellite pictures indicated that it haddeveloped into a tropical cyclone. It was named`Tracy', and a warning was issued by the TropicalCyclone Centre in Darwin. Tracy intensi®ed overthe next two days as it moved south-west andthen curved south-east towards Darwin. Thecyclone was tracked continuously by the Bureauof Meteorology at Darwin Airport.Soon...

Find Another Essay On An essay on tropical cyclones

An essay on Weather maps

519 words - 2 pages lines that we see on weather mapsare called isobars. Isobars are lines joining placesof equal pressure.Highs and lowsThe average weight of air at sea level is 1013 hPa.If air pressure measures more than 1013 hPa, it isusually an area of sinking air and is generally anarea of high pressure. High pressure systems areoften called anticyclones. You can see from thetable opposite what a high pressure system lookslike and the anticlockwise direction the

It's an essay on Elephantiasis

396 words - 2 pages I did my report on filariasis, which is more commonly known as elephantiasis. Elephantiasis is the late phase of filariasis. Filariasis is a tropical mosquito born parasitic disease causing obstruction of the lymph vessels. In some people the presence of the worm causes a tissue reaction that causes the lymph flow to be blocked. This blockage produces lymphedema which is a swelling and can eventually lead to a tremendous enlargement of an

An essay on john Locke

1413 words - 6 pages John Locke in his prose An Essay Concerning Human Understanding displays an extremely individualistic take on human reason (126). Proposing a perspective that is especially interesting during his time in the 17th century, which catered to a shift towards individual morals and responsibilities - the Puritan movement (Kang). Furthermore, John Locke sees the human mind as a product of one’s own experiences and inherent responsibilities, which is

Argumentative Essay On An Issue

643 words - 3 pages Argumentative Essay Australian Swimmers and Bodysuits: should they be worn in competition? An issue that has been debated lately is weather or not the Olympic athletes should be able to wear the full bodysuits. This debate started in May this year, just before the trials for the swimming team, who were to compete in the upcoming Sydney Olympic games.The bodysuits are being produced by Speedo and Adidas. They are made out of mainly Lycra, blended

An essay on learning styles

553 words - 2 pages An essay on learning stylesMan's greatest achievement? Perhaps not, but can you afford not to read on when I am about to tell you about learning styles? Underestimate learning styles at your peril. Remarkably learning styles is heralded by shopkeepers and investment bankers alike, leading many to state that several of todays most brilliant minds seem incapable of recognising its increasing relevance to understanding future generations. It is an

An Essay On Northern Ireland

1827 words - 7 pages INTRODUCTION I am writing about the conflict known as 'The Northern Irish problem.' Beginning with some background data and noteworthy dates, I will clearly explain, how the conflict came to be. Following the Important Dates section, I will explain who the main parties are and how they are involved. The conclusion of this essay will state the nature of the conflict, and what is being done to resolve it. My perspective on who is in the right will

Perfection in Pope’s An Essay on Man

1922 words - 8 pages Alexander Pope envisioned a universe perfect by definition. Every facet of this universe is designed solely for its place in the hierarchy of existence, and is in fact perfect for its particular station. This idea of perfection in completeness is encompassed in the famous concluding words of the first epistle of Pope’s An Essay on Man: “Whatever IS, is RIGHT.” This aphorism, however, belies the effort Pope took to solidify his assertion. In

An essay on Theater of the absurd

514 words - 2 pages An essay on Theater of the absurdThe issues involving Theater of the absurd has been a popular topic amongst scholars for many years. I find my self constantly drawn back to the subject of Theater of the absurd. While it is becoming a hot topic for debate, Theater of the absurd is not given the credit if deserves for inspiring many of the worlds famous painters. Since it was first compared to antidisestablishmentarianism much has been said

this is an essay on entrepreneurs

891 words - 4 pages Untitled My Entrepreneur Essay: Bill Gates Rough Draft By: Brandon Pentz An entrepreneur is someone who is a risk taker in the market, a person who never gives up on their lifelong work, and someone who owns their own business. Bill Gates is extremely intelligent in many specific areas, and one of those is computers. Gates is an entrepreneur who started his own business named Microsoft. Microsoft is a software for computers

this is an essay on entrepreneurs

891 words - 4 pages Untitled My Entrepreneur Essay: Bill Gates Rough Draft By: Brandon Pentz An entrepreneur is someone who is a risk taker in the market, a person who never gives up on their lifelong work, and someone who owns their own business. Bill Gates is extremely intelligent in many specific areas, and one of those is computers. Gates is an entrepreneur who started his own business named Microsoft. Microsoft is a software for computers

JOURNALISTIC PERSUASION An essay on journalism

1929 words - 8 pages : journalistic persuasion.Andrew Solomon gives an example of journalistic persuasion in his essay "Defiantly Deaf." On first examination, his essay appears to be an objective report, but on closer analysis it is found to be riddled with opinion and subjectiveness. He objectively states, "There is a race going on. Running on one team are the doctors who will make the deaf hear . . . On the other team are the exponents of Deaf culture (44). He, however

Similar Essays

Australian Geography Tropical Cyclones Essay

1688 words - 7 pages officer at the time, Geoff Crane, issued an initial tropical cyclone alert describing the storm as a tropical low that could develop into a tropical cyclone.The storm was officially pronounced a tropical cyclone at around 10pm on December 21, when it was around 700 km northeast of Darwin. Over the next few days it moved in a south west direction, passing north of Darwin on December 22. A broadcast on ABC Radio that day stated that Cyclone Tracy

Tropical Cyclones And Climate Change Essay

2623 words - 10 pages Tropical cyclones (TCs) are of the most extreme and dangerous weather phenomena on Earth. In the United States, landfalling TCs account for an average of $10 billion damages annually (Pielke et al. 2008). Hurricane Katrina (2005) alone caused $81 billion of damages and took more than 1,800 lives away. In developing countries, TC landfalls can be extremely detrimental. For example, Cyclone Nargis (2008) took more than 130,000 lives in Myanmer

An Essay On Man

980 words - 4 pages      “An Essay on Man” by English poet Alexander Pope is a philosophical poem, which was published, in the 18th century during a historical period called the Enlightenment. A huge emphasis was placed on the ability to think and reason during the Enlightenment. People during this era reflected about a variety of topics. Some people concerned themselves with the issue of God, which consequently caused many to question the

An Essay On Chan

822 words - 3 pages An Essay Answering Questions From the Assigned Text by Faure      This essay will attempt to answer questions coming from the Bernard Faure text assigned in class. The questions are as follows: How does Hu Shih’s approach to Chan differ from D.T. Suzuki’s? Why was the scholarship of the Japanese on Zen not objective? What does Faure mean by the teleological fallacy? What does he mean by the two alternative approaches he