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However, they were still not able to retain sufficient water to cope with the driest summers, despite the Aswan Low Dam being raised twice, in 1907–1912 and in 1929–1933. During the 1920s, the Sennar Dam was constructed on the Blue Nile as a reservoir in order to supply water to the huge Gezira Scheme on a regular basis. It was the first ...
The hatched areas were affected by wet conditions or flooding, and the dotted areas by drought or dust storms. [ 1 ] The 4.2-kiloyear (thousand years) BP aridification event (long-term drought), also known as the 4.2 ka event , [ 2 ] was one of the most severe climatic events of the Holocene epoch. [ 3 ]
Hapi (Ancient Egyptian: ḥꜥpj) was the god of the annual flooding of the Nile in ancient Egyptian religion.The flood deposited rich silt (fertile soil) on the river's banks, allowing the Egyptians to grow crops. [1]
The flow of the Blue Nile reaches maximum volume in the rainy season from June to September, when it supplies 80–86% of the water of the Nile proper. The river was a major source of the flooding of the Nile in Egypt that contributed to the fertility of the Nile Valley and the consequent rise of Ancient Egypt and Egyptian mythology.
Soil salinity also increased because the distance between the surface and the groundwater table was small enough (1–2 m depending on soil conditions and temperature) to allow water to be pulled up by evaporation so that the relatively small concentrations of salt in the groundwater accumulated on the soil surface over the years.
Emad Attiah Ramadan has started planting rice on his 12-acre (5 hectare) plot on the edge of the Egyptian city of Damietta, giving up on tomatoes that would no longer grow well in the increasingly ...
Elmer Gray, public health extension specialist with the University of Georgia in Athens said the heavy rainfall and flooding from Tropical Storm Debby is impacting the mosquito population.
Because this flooding happened fairly predictably, the Egyptians were able to develop their agricultural practices around it. The water levels of the river would rise in August and September, leaving the floodplain and delta submerged by 1.5 meters of water at the peak of the flooding. This yearly flooding of the river is known as inundation.