This essay will investigate the causes and effects of floods, most notably in the areas of; kinds of floods, causes and effects of these floods, and prevention of floods. According to the Forces of Nature website, storms get water from oceans and bring it towards land. Several studies have looked into the flow patterns and redistribution in streets during storm events and the implication on flood modelling. Climates and environments have a lot to do with flooding also. The people rely on the aid workers to bring refugees food; consequently, if the aid workers have a hard time getting through the water, many families starve to death. Causes: Floods are caused by many things. Tobin 1993 Causes of floods and possible prevention When a levee is built to prevent the river from spreading out horizontally over the flood plain, the river is constricted.
Today a protect the land behind the coast. Secondly, a thunderstorm or major rain event occurs in a short period of time producing more water than can be absorbed by the dry … soil. Many times the effects are devastating. Entire harvests for a country can be lost in extreme flood circumstances. Flood waters typically inundate farm land, making the land unworkable and preventing crops from being planted or harvested, which can lead to shortages of food both for humans and farm animals. Localized flooding may be caused or exacerbated by drainage obstructions such as , , , or dams. Tourism, agriculture and transportation can also be affected.
Sometimes rain falls heavily for days together. Most times a flash flood gives no warning and people underestimate the power that is involved until it is too late. A lack of vegetation will mean that surface runoffs will be high, and this can lead to flooding. This water dumped on land and as water levels rise, flooding is created. This essay is about the causes and effects that flood have on our world. Bangladesh's most successful industry factories had to be shut down and the production went down 20% Country, 2012. Loose soil, rocks, and landscape can be dramatically altered, leaving behind a rugged, changed terrain.
Heavy rainfall in short periods in instances like this will lead to flooding. It had to help both the flood-stricken and drought-stricken people to mitigate their sufferings. Effective flood channel geometry may be changed by growth of vegetation, accumulation of ice or debris, or construction of bridges, buildings, or levees within the flood channel. They insurance money will pay for repair and replacement of damaged items. They are usually the result from intense rainfall over a relatively small area.
In that setting, the first flood water to arrive is depleted as it wets the sandy stream bed. In the , industry experts estimate that wet basements can lower property values by 10—25 percent and are cited among the top reasons for not purchasing a home. In Bengal, there was a terrible flood in 1913. Massive dams that hold water back prevent flooding. Sometimes the river cannot hold so much water. It had to help both the flood-stricken and drought-stricken people to mitigate their sufferings. The Whole area under a flood presents a very horrible sight.
Debris modification of channel geometry is common when heavy flows move uprooted woody vegetation and flood-damaged structures and vehicles, including boats and equipment. Ground water becomes scarce and this leads to droughts. They are caused by too much rain, hurricanes, breaking of dams, etc. Markets places and farmlands are submerged for weeks and sometimes are washed away. The eye wall is the area surrounding the eye, and it has much stronger winds than the eye. Animals that rely on these creatures as a source of food may die if an alternative source is not found. The deadly flood resulted from a thunderstorm over part of the drainage basin, where steep, bare rock slopes are common and the thin soil was already saturated.
They water will not reach the town as it is trapped between the river bank and the flood wall. Then the water flows down the river and floods the adjacent lands. Low-lying countries are in permanent danger of being flooded. Floods often cause damage to homes and businesses if they are in the natural flood plains of rivers. This water dumped on land and as water levels rise, flooding is created.
A higher altitude might be exposed to more rain than a lower altitude. According to the Forces of Nature website, one cause of tsunamis are high winds. Additionally, floods can be local, impacting a neighborhood or community, or very large, affecting entire river basins. In urban areas, flood effects can be exacerbated by existing paved streets and roads, which increase the speed of flowing water. Sometimes snow melts in mountains.
Floods occur when the soil, stream channels and man-made reservoirs cannot absorb or contain all the water. Floods do not only damage properties and endanger the lives of human and animals but also produce other secondary effects like outbreak of diseases such as cholera and malaria as well. Climates and environments have a lot to do with flooding also. This causes a lot of economic loss to farmers. It carries debris and great volumes of water that can destroy whatever is in its path.
Causes Flood due to in Upslope factors The amount, location, and timing of water reaching a drainage channel from natural precipitation and controlled or uncontrolled reservoir releases determines the flow at downstream locations. People try their utmost to help the flood-Btricken people. The people rely on the aid workers to bring refugees food; consequently, if the aid workers have a hard time getting through the water, many families starve to death. The North Bengal flood of 1922 also caused a great loss of life and property. Thus the Government of India had a very hard time to face the situation. Hydraulic structures and society - Engineering challenges and extremes.