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causes of flood in ethiopia

They caused more than 430 deaths, notably in Kenya and Rwanda. The multidimensional causes of flood hazard and limited landscape based mitigation strategies in the study area have worsen the impacts of flooding. Record Floods Cause Deaths And Widespread Damage in Sudan | … The short rainy season in southeastern Ethiopia typically runs from October to January. However the effects of this increased precipitation can be felt far away as the flood waters can reach distant areas that are low lying and these low-lying areas will also experience a more disastrous effect, especially where many people live close to the banks of rivers in a valley. National Meteorological Agency Federal Democratic Republic of Ethiopia. Where and why do floods occur in Ethiopia? Damage from flooding is often large due to the combination of fast-moving water and the many people who live, work, and develop property along a river. Bare or sparsely vegetated ground is tan. National Oceanographic and Atmospheric Administration. The October weather forecast by the National Meteorology Agency (NMA) indicated that the expected dominantly above normal rainfall will prevail across the … The best way to avoid this extremely common natural hazard is by not building and settling on floodplains. … ADDIS ABABA — Around 217,000 Ethiopians have been displaced by the worst floods in several decades, an Ethiopian minister has said. The short rainy season in southeastern Ethiopia typically runs from October to January. Flooding also destroys crops and can wipe away trees and other important structures on land. This process determines at any given point how much water flows in rivers and the potential of a river to overflow its banks causing damaging floods. The flooding is caused by overflow of Reb River and its subsidiaries, according to EBC report. NASA images courtesy the MODIS Rapid Response Team at NASA GSFC. According to state disaster… Another way to increase the risk of floods is to increase the amount of impervious surfaces in flood-prone areas. Erosion over a long period can create large floodplains adjacent to rivers because sediment that has been eroded away eventually settles creating a flat area on either side of a stream. Similarly, at least 20,000 flood-affected people were evacuated in Haro Hadi Town (since 1 September) as heavy summer rains continue to cause flooding in East Shewa zone in southern Ethiopia. flooding is limited to the lowland flat parts of the country. Compared to October 26 (lower image), the river has widened. (2014) Indo-Pacific Sea Surface temperature influences on failed consecutive rainy seasons over eastern Africa. Clouds are light blue. Where and why do floods occur in Ethiopia? Retrieved from http://pubs.usgs.gov/circ/2003/circ1245/. The loss of vegetation cover (by deforestation, drought, or other natural causes), loose soil, urbanization, land covered by impervious surfaces, and steep slopes are the main factors that affect the amount of soil erosion and thus increase the damage caused by flooding. Climate Dynamics, 43, 1645-1660. upstream of the Koka Reservoir). Trends and Spatial Distribution of annual and seasonal rainfall in Ethiopia. On 5 August 2006, torrential rains caused the Dechatu River to burst its banks, causing serious flash flooding in the region of Dire Dawa. The slope of a drainage basin (the total area of land where water flows into an individual stream) will determine how water will interact with the river in terms of erosion and flooding. (2008, November 18). The flooding of 6 August, 2006 was unprecedented and caused severe impacts in the city. The flooding comes despite Ethiopia starting to fill the reservoir behind a giant new dam upstream on the Blue Nile in July. The water cycle circulates particles of H2O throughout the earth, and flooding is one of the byproducts. Pale blue pools along the river are shallow, silt-laden water or muddy ground. The steeper the slope along which a river flows, the affects the flow of water. The largest flows tend to occur at locations where topographically high areas are oriented perpendicular to path of storm clouds with high moisture content. Funk, C., & Hoell, A. Importance of the Nile River’s origins in Ethiopia; Seasons in Ethiopia; Flooding in Ethiopia. Some 500,000 people were so far affected, including some 300,000 displaced.” Most precipitation will occur on the windward side of the mountain ranges (or the side that is facing the oncoming wind). Dire Dawa, the second largest city of Ethiopia, has been suffering from disastrous floods in its history. Many people live on floodplains despite the high hazard potential. Speaking to Xinhua, Muferiat Kamil, Ethiopia Minister of Peace, said various parts of Ethiopia in recent weeks have experienced floods caused by rainfall levels that haven’t been seen for more than 30 years. One of these is the Awash River Basin located in the Rift Valley and with a surface area of about 113,000 km2, which has the largest level of … Flood usually occurs at irregular intervals and varies in magnitude, duration and the area affected by flood. Intense Seasonal Floods in Southern Africa, NASA Goddard Space While the rains caused destructive flooding, they may also have been beneficial. Ethiopia: Thousands displaced by floods in Somali region. (See Drought in Eastern Ethiopia on the Earth Observatory. The region is prone to cycles of flood and drought. However, intense rainfall in the highlands causes flooding of settlements in a number of river basins. This ongoing cycle influences how much water a river usually holds and its capacity to overflow causing damaging floods. Costa, Jon E., & O’Connor, Jim E. (2003). Cheung, W. H., Senay, Gabriel B., & Singh, Ashbindu. A long duration or rainfall in a large river watershed or short and heavy precipitation in a small watershed both cause large flows in rivers. (This phenomenon is known as orthographic lift). United Nations Office for the Coordination of Humanitarian Affairs Integrated Regional Information Networks. Doi 10.1007/s00382-013-1991-6. Floods in the US: Where they happen and why? US Geological Survey Circular, 1245. S origins in Ethiopia Blue Nile during floods notably in Kenya and Rwanda people had to be deposited the... Drought in Eastern Ethiopia on the socio-economic sectors of Dire Dawa, Ronbert H., Senay Gabriel! Local land, and extensive damage to property Nile river for their.! Hit particularly hard by floods are often the result of intense precipitation due to the Indian Ocean Dipole and El. 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2020-12-12T06:15:06+00:00