Sunday, February 8, 2009

Cyclones.

pic - http://www.nasa.gov/images/content/180925main_cyclone03B.jpg

3.My research was on cyclones. Cyclones are revolving storms caused by winds in a central area. They occur in times low atmospheric pressures. When they occur in the northern hemisphere, they are called either hurricanes or typhoons. Cyclones typically develop over warm seas near the equator.

diagram - http://www.fas.org/irp/imint/docs/rst/Sect14/3_cyclones.jpg

movie - Cyclones typically occur around the equator. They can be tracked by weather patterns. A new type of super computer had been created to track such events. When there are drops in pressure and wind changes, the super computer can predict where, when, and how long a storm may last. A cyclone that happened further south than any other recorded cyclone was predicted by this super computer.

pic - http://upload.wikimedia.org/wikipedia/commons/thumb/8/89/Cyclone_Catarina_from_the_ISS_on_March_26_2004.JPG/800px-Cyclone_Catarina_from_the_ISS_on_March_26_2004.JPG

2. Cyclones are basically large revolving storms. Heated air rises and cool air dives at the same time. Moisture collects and they begin to condense into thunderclouds. When the cool air dives air begins to bend and spirals into a circle. The middle of cyclones are called an “eye.”

diagram - http://www.ga.gov.au/image_cache/GA9678.jpg

5. Weather warnings can be issued on television or on radios, so if you live in an area with the possibility of cyclones, you should check regularly. Houses can be completely demolished by winds and underground water pressure during cyclones. When the storms are bad, you may even be evacuated and moved inland. Cyclones are very dangerous. Winds from 70-80 mph can occur, and knowing your local evacuation plans may be crucial.

pic - http://www.jeffsweather.com/archives/Cyclone%20Oman.jpg

5. If you live in an area where cyclones are typical, it would be best to keep your momentos in large rubber storage containers so you could take them with you. Listen to the radios before and after for warnings. Turn off your water, electricity, and make sure people know where you are. If you have time, you may make sure to raise your belongings off the floor to protect it from floodings. Make sure to have protective clothing, blankets, or sleeping bags so you can give yourself some shelter.

diagram - http://www.nasa.gov/images/content/115711main_k_cyclone.gif

4. The eyes of storms are calm and cloudless. No rain falls in the eye and the winds are low. In the northern hemisphere, cyclones are called hurricanes or typhoons. They are different from those in the southern hemisphere because hurricanes and typhoons occur counterclockwise. Typhoons, which occur in the southern hemisphere, spin clockwise.

pic - http://www.smh.com.au/ffximage/2005/03/08/centre_cyclone_wideweb__430x344.jpg

1. For these storms to develop, the sea’s surface temperature must be at least 26 degrees Celsius. The most dangerous and life taking occurrences from the cyclones are the winds. They tear down trees and collapse houses. The cyclones spin because the Earth spins. The earth spinning on it’s axis is the reason why the storms spin opposite directions depending on where they are.

diagram - http://www.planet-science.com/outthere/plughole/images/diagram.gif

When writing my paper, I found out what exactly cyclones are. I found out about how cyclones are created and how they work. I learned the highest risks of cyclones and what causes them. Before this paper, I thought that cyclones were completely different from hurricanes and cyclones.

pic - http://www.smh.com.au/ffximage/2005/02/17/cyclone_wideweb__430x322.jpg

diagram - http://www.bom.gov.au/weather/cyclone/about/images/qld/qld-hybrid.png



BIBLIOGRAPHY.
1. url address - www.library.thinkquest.org/10136/cyclones/cycltg.com.
title - cyclones.
author - cindy / lisa / stacey.
organization - ultimate disaster zone.
copyright / date created - none.

2. url address - clearlyexplained.com/nature/earth/disasters/cyclones.
title - cyclones.
author -richard conan - davies BSc Diped.
organization - clearly explained.
copyright / date created - may 14th, 2003.

3. url address - www.wind.mit.edu/~emanuel/anthro2.html
title - anthropogenic effects on tropical cyclone activity.
author - kerry emanuel.
organization - mit.
copyright / date created - january, 2006.

4. url address - ieeeexplore.ieee.org/xplore/login.
title - cyclones.
author - D. Ernst, A. Hamel, T. Austin.
organization - comp. architecture.
copyright / date created - june, 2003.

5. url address - http://www.srh.noaa.gov/jetstream//tropics/tc_safety.htm
title - protecting your past.
author - n/a.
organization - national weather services.
copyright / date created - october 8th, 2008.

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