Floods

Topics: Flood, River, Tropical cyclone Pages: 2 (675 words) Published: July 6, 2013
Introduction
A disaster is a natural or man-made (or technological) hazard resulting in an event of substantial extent causing significant physical damage or destruction, loss of life, or drastic change to the environment. A disaster can be ostensively defined as any tragic event stemming from events such as earthquakes, floods, catastrophic accidents, fires, or explosions. It is a phenomenon that can cause damage to life and property and destroy the economic, social and cultural life of people. A natural disaster is any event of force of nature that is caused by environmental factors that has catastrophic consequences. Natural disasters include: avalanches, earthquakes, floods, hurricanes, impact events, landslides, mudslides, tornadoes, tsunamis, tropical cyclones, typhoons, and volcanic eruptions.  A natural disaster can cause loss of life or property damage, and typically leaves some economic damage in its wake, the severity of which depends on the affected population's resilience, or ability to recover. Disaster management can be defined as the organization and management of resources and responsibilities for dealing with all humanitarian aspects of emergencies, in particular preparedness, response and recovery in order to lessen the impact of disasters. Floods

A flood is an overflow of water that submerges land which is normally dry. Flooding may occur as an overflow of water from water bodies, such as a river or lake, in which the water overtops or breaks levees, resulting in some of that water escaping its usual boundaries, or it may occur due to an accumulation of rainwater on saturated ground in an areal flood.  Types of floods

* Slow-onset floods - flooding of river systems in the northern pastoral areas of South Australia can spread for thousands of square kilometres and last for many weeks. This can cause damage to road and railways with potential for loss of stock and isolation of settlements and homesteads. Flooding of the River Murray can...
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