Natural Disasters: A comprehensive Presentation
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Post on 21-Aug-2014
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DESCRIPTIONThis is a comprehensive presentation on Natural Disasters.
<ul><li> Natural Disasters Presented by: Faisal Naseer, Sanaullah Khan </li> <li> Definition. Categories of natural disasters. Places of occurrence. Similarities & Differences. Outline: </li> <li> What is a Natural Disaster? A natural disaster is an event caused by natural forces of nature that has a large effect on the human population. </li> <li> Meteorological Natural disasters of the atmosphere </li> <li> Types of Meteorological Disasters Hurricane, Typhoon, Cyclones. Tornadoes. Characteristics: Hard rain, flooding, high winds. Duration: 8 24 hours of full force </li> <li> Cyclone, Typhoon, Tornado, Hurricane Whats the difference?? </li> <li> Cyclone, Typhoon, Hurricane Define: A tropical storm that forms over an ocean The difference is WHERE they form Cyclone: Asia, South of the Equator Typhoon: Asia, North of the Equator Hurricane: Atlantic Ocean & East Coast of North America </li> <li> Tropical Storm Map </li> <li> Test Your Knowledge Write these down: What wind storm occurs in these countries: United States: Australia: India: Japan: Canada: </li> <li> Wait, whats a Tornado?? Isnt that the same?? </li> <li> Tornado A Tornado forms over land. Also called a Twister Most Of them occurs in Tornado Alley in the USA </li> <li> Tornadoes Occurrence Worldwide Areas Worldwide which experience the highest chance of seeing tornados. shaded orange. </li> <li> Tornado Alley Tornado Alley is the area where Tornados form the most. It includes the states of: Texas, Oklahoma, Kansas, Nebraska, and South Dakota </li> <li> How and why do they occur? The middle states are located between the warm air of the Gulf of Mexico and the cold air of the Pacific Ocean from Canada. </li> <li> Tornados vs. Hurricanes Tornado Hurricanes </li> <li> Geological Disasters Natural disasters of the land </li> <li> Earthquake? Whats that?? </li> <li> Earthquakes A sudden shaking of the ground as a result of movements of the earths tectonic plates </li> <li> How do they happen? The earths surface rests on moving sheets of crust called tectonic plates These plates move VERY slowly </li> <li> How do they happen? When the plates collide, they create mountains When the plates separate, they form volcanoes. </li> <li> Hydrological Disasters Natural disasters of the water </li> <li> Types of Meteorological Disasters Tsunami. A long, high sea wave caused by an earthquake or other disturbance. Floods. An overflow of water beyond its normal limits, especially over what is normally dry. </li> <li> How do They Occur TSUNAMI FLOODS </li> <li> Where do Tsunami Occur </li> <li> Where do Floods occur </li> <li> Lets see what they can do. </li> <li> video </li> <li> Statistics In 2012, there were 905 natural catastrophes worldwide. 93% of which were weather-related disasters. 45% were meteorological (storms) 36% were hydrological (floods) 12% were climatological (heat waves, cold waves, droughts, wildfires) 7 % were geophysical events (earthquakes and volcanic eruptions). Between 1980 and 2011 geophysical events accounted for 14% of all natural catastrophes. </li> </ul>