Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Impacts of flooding on society
Literature review on effect of flooding
Literature review on effect of flooding
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Impacts of flooding on society
Flooding goes back to the beginning of time, some say that the earth was once made up of water, and someday will be again. Flooding is caused by many different things in nature. A flood could be caused by as little as a rain storm and a clogged drainage ditch, sewer system, and more. “Flooding occurs most commonly from heavy rainfall when natural watercourses do not have the capacity to convey excess water. However, floods are not always caused by heavy rainfall.” See where this is cited on works cited page. “After discussing their findings, the kids went outdoors to look at a real river. “The children were able to understand why the water came down the valley so quickly and why it contributed to the recent floods,” Anil says. “One of the students …show more content…
“We could clearly see how little water got to the bottom of the table on the meandering table with vegetation and terracing, while on the other table water flowed quickly and formed a pool in the bag.” Water builds up rapidly, and causes problems with everything. “One area could get a lot of rain and might not flood, while in other areas the same amount(or more) of rainfall can destroy homes, businesses and the natural environment. “Take the Boxing Day floods of 2015, for example. The north of England and Scotland saw thousands of homes and businesses wrecked and people forced to move and flee their homes.” Flooding is a large problem, tho there are ways to overcome it. “The UK must "improve our flood warning systems", giving people more time to take action during flooding, potentially saving lives, the deputy chief executive of the Environment Agency, David Rooke, said. Advance warning and pre-planning can significantly reduce the impact from flooding.” Better flood warnings could increase the possibility of preventing floods. “The focus should be on “flood resilience” rather than defence schemes, according to Laurence Waterhouse, director of civil engineering flood consultancy Pell …show more content…
“Britain should construct all new buildings one metre from the ground to prevent flood damage, the former president of the Institution of Civil Engineers has suggested. Professor David Balmforth, who specialises in flood risk management, said conventional defences had to be supplemented with more innovative methods to lower the risk of future disasters.” Making buildings above ground level can help prevent water damage. “The creation of more wetlands – which can act as sponges, soaking up moisture – and wooded areas can slow down waters when rivers overflow. These areas are often destroyed to make room for agriculture and development, the WWF said. Halting deforestation and wetland drainage, reforesting upstream areas and restoring damaged wetlands could significantly reduce the impact of climate change on flooding, according to the conservation charity.” Wetlands will help slow down, if not stop floods, as the ground will soak up most of the
Floods can be a very dangerous natural disaster because a flood has the power to move cars, buildings, and cause massive damage to life and property. Even the small floods that are only 30 centimetres or so can do massive damage to houses and if the
Federal Emergency Management Agency’s article, “Benefit of Dams” (2012) analyzes how dams prevent flooding by releasing the excess water in controlled amounts through floodgates (¶ 3).
The first mitigation banking guidance was released in 1995 by the EPA and Corps of Engineers. The most recent wetland mitigation banking guidance was released in 2008. The idea behind both wetland mitigation banking and conservation banking is to provide compensation for unavoidable impacts to resources prior to the environmental impact taking place (FWS, 2003). Based on the rules set forth in section 10 of the Rivers and Harbors Act and section 404 of the Clean Water Act, wetland impacts are reduced by using the following sequence of steps: avoiding impacts, minimizing impacts, and as a last resort, mitigating for impacts. Although the Corps has enforced a mitigation policy to reg...
manmade levees, dikes, and other flood control measures, is a case in point. In a
Currently, over half of the world’s population lives in urban based areas (Owrangi et al, 2014), and this increase in population is expected to contribute to further increases in flood risks (ibid). Vancouver has achieved rapid socioeconomic development due to the increased employment opportunities and growth rates, directly stressing local natural resources by increasing population and urbanization (Owrangi et al, 2014).
There are numerous stages that take place simultaneously in the hydrologic cycle and this includes evaporation. This is when the water alters from a liquid state into a gas. The damp air from the water rises into the atmosphere and when it cools, the vapor condenses and shapes into clouds. But those billows are not the only form the vapors make; it can also materialize as dew, fog and mist, which blanket the Earth, characteristically on a rainy or humid day. Evaporation takes place when water changes from a liquid state into a gaseous state, and ascents out of the pores of the earth and into the atmosphere as a vapor (“How”). While evaporation is taking place, condensation is also occurring. When the temperature in the air plunges, the clouds become heavy and as a result they relieve themselves of the extra weight, which is called precipitation. This produces rain, hail, snow and sleet, conditioned upon the temperate. As the precipitation falls, it enters the surface of the ground and percolates into the soil, which is called infiltration. The more porous the land is, the more the infiltration can take place. However, the ground cannot hold all of that water and floods. The excess rainfall, which is also called runoff that has not been absorbed makes its way into bodies of water, such as small ponds, rivers, lakes and parts of the ocean (“Summary”).
and while they may generate a lot of rainfall in a short time it is
By this he means that by covering the land with tarmac in urban areas humans have increased the rate of surface runoff and decreased the saturation levels of the ground. When surface runoff is high rainwater reaches the river faster. It would appear that the speed in which the water reached the river was too fast for the river to handle. The river filled up reaching bank-full discharge and then overflowing its banks onto the flood plain. The flood plain of the River Severn is built on, therefore, when the river floods it floods onto residential areas.
When it floods sediments can affect the land by losing nutrients in the soil and it can also affect the clarity of
This paper introduces the environmental concerns of the loss of coastal wetlands. The paper will discuss the significance of wetlands and the devastation that is occurring because of human activity. Wetlands are an essential element of our environment both ecological and societal; conservation will be essential for the preservation of these precious ecosystems.
Between 300 and 400 million people worldwide live in areas near wetlands and depend on them. Wetlands are mechanisms for treatment of wastewater are extremely efficient because they absorb chemicals and filter pollutants and sediments. Half the world's wetlands have disappeared due to urbanization and industrial development. The only way to achieve sustainable development and poverty reduction will be through better management of rivers and wetlands, and the land they drain and drain as well as through increased investment in them.
Through careful planning, I decided it would be wise to safeguard everyone in the high-risk zone (risk 4) by making improvements in building design and construction by elevating them above flood level, installing drainage, covering the wells, and planting trees and mangroves. Also, ensuring that important appliances, such as heating and electrical systems are raised high above flood level. Those considered at risk were evacuated. However, I quickly learned that the given budget for the town and time constraint resulted in me recreating the plan set forth.
Observational records indicate that sea level has already risen between 10 and 25 cm globally over the past 100 years. In addition, the Intergovernmental Panel on Climate Change (IPCC) has projected a sea-level rise of 15-95 cm as a consequence of global warming. Sea-level rise will also increase the depth of coastal waters and increase inland and upstream salinity intrusion, both of which affect fresh and brackish water wetlands. Sea-level rise has the potential for increasing the severity of storm surges, particularly in areas where coastal habitats and barrier shorelines are rapidly deteriorating. These direct consequences of global- and regional-scale changes will increase the vulnerability of coastal wetlands which are already heavily impacted by human activities.
An example of an urban flood is a recent event Houston's flood. Bogost writes in Houston's Flood Is a Design Problem “It’s an epitome of the urban sprawl” and also writes “Houston is well above sea level, so flooding risk from storm surge inundation is low” (Bogost, Ian). Huston's was not prepared for the flood because they did not believe they would get one because of the area they were living but because of urbanization, a flood was possible. Floods can bring many changes to our environment and health.
Flooding has always been part of the natural environment of Thailand. Since historical times populations that live within the urban and rural floodplains have learned of ways to adapt and survive (Balancing 2). With the economic development of many areas within the floodplain regions over the later part of the last century many areas have become further susceptible to seasonal rains and flooding.