Effects of Flood Damages
The generally accepted definition of a flood is a body of water covering land usually dry under normal circumstances. Common natural calamities include floods. They interfere with lives of millions of people across the globe. Identified negative effects include; they destroy premises, influence soil erosion and contaminate water for drinking. Overflowing lakes, rivers as well as seas are just but a few causes of floods across the world. Flooding is as historical as human life. Civilization in ancient times took place along waterways. Water is life as such; man was forced to settle along riverbanks.
Flooding also carries its good side in spite of the many negative effects. Fertility of the land around River Nile in Egypt owes its allegiance to floods by the same river. This was before the construction of the famous Aswan High Dam. Although human life suffers much, floods deposit fertile soil in Bangladesh during the monsoon season. However, they also kill thousands of people in addition to destroying property.
At least once in a year, land bordering rivers floods. Rivers carry in excess of their capacity during rainy seasons. When snow in mountains melts, it is another likely cause for flooding. Flash floods are caused by thunderstorms in many ways. The capacity of rivers becomes ten more times their usual strength. Slow moving rivers carry silt, sand and water. In the process, they put up their beds. Beds raise rivers above their normal level even in comparison to the land that hosts them. You find such rivers in Chicago.
Phoenix AZ Rivers build floods slowly but the result is more damaging. A bigger area is affected by these floods. Coastal rivers such as those in Fort Myers are also on the receiving end of floods. The height of waves caused by floor tsunamis occurring on the ocean reaches 15 meters. They then flood several miles on the land from the coastline. In the Indian Ocean for instance, a tsunami that was devastating resulted in more than a quarter a million deaths. Affected countries included Thailand, Sri Lanka and Indonesia among others.
Cyclones, hurricanes as well as tropical storms are other causes of destructive floods. Both Chicago and the Mississippi suffered hugely from Hurricane Katrina. The effect was felt in Fort Myers and Phoenix AZ. Responsible authorities whisked people away to avoid more deaths. The dangers of flooding increase in low-lying regions. The Netherlands, whose major part lies below sea level, is an example. Haiti was compounded and almost crashed by floods.
What people do in many ways contributes to floods. Trees and other plants are helpful in absorbing excess water. Cutting down trees leaves the land bare for water to act on. In turn, they cause mudslides. Actions of excess water on dams causes cracks. At times, they cause total breakage of the wall. Many methods are developed o take care of the effects of floods. The Netherlands for instance, has constructed dams and dykes to safeguard the land along the coast.