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Natural Hazard, FEMA -- "Floods"
Natural Hazard: Flooding
Flooding, according to the Natural Disasters Association (2014), "is the most common environmental hazard worldwide." This according to the organization is more so the case given the vast distribution (geographical) of both low-lying coastal areas and river flood plains. Essentially, flooding occurs once an area that was not formerly underwater is submerged as a result of water overflow. According to Ready, a campaign that seeks to empower members of the public on how best to respond to various emergencies, there are various categories of floods (Ready, 2014). While some floods as Ready points out develop slowly, others tend to develop within a relatively short period of time (Ready, 2014). The latter category is referred to as flash floods. Further, while some floods according to Ready could impact a large area, the effect of others could be limited to a neighborhood. Floods have also been categorized as coastal floods...
While river floods are in most cases "atmospherically driven, caused by excessive precipitation," coastal floods, on the other hand "are often due to storm surges caused by tropical cyclones or tectonically produced tsunamis" (Natural Disasters Association, 2014).
Causes and Associated Risk
Floods occur due to a myriad of reasons. Broadly speaking, the causes of flooding as Sene (2008) points out could be geotechnical or atmospheric. Geotechnical causes in the opinion of the author include, but they are not limited to, earthquakes, debris flows, or even land slides (Sene, 2008). Atmospheric causes, on the other hand, "include heavy rainfall, causing rivers to flood, sometimes linked to snowmelt and ice-jams in colder climates, and coastal and estuarine flooding due to surge, wave and wind effects, most notably in tropical cyclones, hurricanes and typhoons" (Sene, 2008, p. 8).
Flooding is easily one…
References
Frank, B. (2012). The Health Effects of Hurricane Katrina. Retrieved from http://serc.carleton.edu/NAGTWorkshops/health/case_studies/hurricane_Katrina.html
Natural Disasters Association. (2014). Natural Hazards: Flooding. Retrieved from http://www.n-d-a.org/flooding.php
Ready. (2014). Floods. Retrieved from www.ready.gov/floods
Sene, K. (2008). Flood Warning, Forecasting and Emergency Response. New York, NY: Springer.
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