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Drainage basin of the Ohio River, part of the Mississippi River drainage basin. In hydrology, the drainage basin is a logical unit of focus [clarification needed] for studying the movement of water within the hydrological cycle. The process of finding a drainage boundary is referred to as watershed delineation. Finding the area and extent of a ...
The Yangtze basin contains a large number of freshwater crab species, including several endemics. [126] A particularly rich genus in the river basin is the potamid Sinopotamon . [ 127 ] The Chinese mitten crab is catadromous (migrates between fresh and saltwater) and it has been recorded up to 1,400 km (870 mi) up the Yangtze, which is the ...
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.
Asphalt and sandbag revetment with a geotextile filter. A revetment in stream restoration, river engineering or coastal engineering is a facing of impact-resistant material (such as stone, concrete, sandbags, or wooden piles) applied to a bank or wall in order to absorb the energy of incoming water and protect it from erosion.
It includes drainage basins which do not flow to the ocean (endorheic basins). It includes oceanic sea drainage basins which have hydrologically coherent areas (oceanic seas are set by IHO convention). The oceans drain approximately 83% of the land in the world. The other 17% – an area larger than the basin of the Arctic Ocean – drains to ...
Cross sectional area of a trapezoidal open channel, red highlights wetted perimeter Change of wetted perimeter (blue) of trapezoidal canal as a function of angle ψ.. The wetted perimeter is the perimeter of the cross sectional area that is "wet". [1]
Main European drainage divides (red lines) separating catchments (green regions). The main European watershed is the drainage divide ("watershed") which separates the basins of the rivers that empty into the Atlantic Ocean, the North Sea and the Baltic Sea from those that feed the Mediterranean Sea, the Adriatic Sea and the Black Sea.
The name Tees is possibly of Brittonic origin. The element *tēs, meaning "warmth" with connotations of "boiling, excitement" (Welsh tes), may underlie the name. [a] *Teihx-s, a root possibly derived from Brittonic *ti (Welsh tail, "dung, manure"), has also been used to explain the name Tees (compare River Tyne).