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The ecological diversity throughout the catchment is unique to the Ewaso Ng’iro watershed specifically, as it originates from the high agriculturally potent lands of Mount Kenya, right at Thome Area of Nanyuki-Laikipia County, that means the exact start point of this river is at the Thome village where it is formed out of convergence of ...
Each drainage basin is separated topographically from adjacent basins by a geographical barrier such as a ridge, hill or mountain, which is known as a water divide. Other terms that are used to describe a drainage basin are catchment, catchment area, catchment basin, drainage area, river basin, water basin and watershed.
Watershed delineation is the process of identifying the boundary of a watershed, also referred to as a catchment, drainage basin, or river basin.It is an important step in many areas of environmental science, engineering, and management, for example to study flooding, aquatic habitat, or water pollution.
The surrounding topography of a catchment zone influences the flow vectors and direction that the water flows. [1] Water flows from areas of high potential energy to low potential energy under the influence of gravity. The geometry of the slope leading to the catchment area influences the amount of water the catchment will contain. [1]
In periods of very high water in the Okavango, the water flows eastward towards the Cuando-Linyanti-System. The last time this happened was in August 2009 after 30 years of falling dry. In times of high water in the Kwando, the water can flow west from the Cuando towards the Okavango Delta, but often evaporates before it reaches the delta. [5]
Water Boards play a key role in the South African water sector. They operate dams, bulk water supply infrastructure, some retail infrastructure and some wastewater systems. Some also provide technical assistance to municipalities. Through their role in the operation of dams they also play an important role in water resources management. [1]
Great Ruaha is about 475 kilometres (295 mi) long, its tributary basin has a catchment area of 68,000 square kilometres (26,000 sq mi) and the mean annual discharge is 140 cubic metres (4,900 cu ft) per second. The Great Ruaha River supplies 22 percent of the total flow of the Rufiji catchment system.
Course and catchment of the Limpopo River.The Olifants joins the Limpopo from the right, some 190 kilometres from the Indian Ocean. The Olifants River, Lepelle, [3] iBhalule or Obalule [4] (Afrikaans: Olifantsrivier; Portuguese: Rio dos Elefantes) is a river in South Africa and Mozambique, a tributary of the Limpopo River.