Search results
Results from the WOW.Com Content Network
The river's discharge at that location depends on the rainfall on the catchment or drainage area and the inflow or outflow of groundwater to or from the area, stream modifications such as dams and irrigation diversions, as well as evaporation and evapotranspiration from the area's land and plant surfaces. In storm hydrology, an important ...
Discharge regime, [1] flow regime, or hydrological regime (commonly termed river regime, but that term is also used for other measurements) is the long-term pattern of annual changes to a river's discharge at a particular point. Hence, it shows how the discharge of a river at that point is expected to change over the year. [2]
The river regime generally refers to the mathematical relationship between the river discharge and its width, depth and slope. Thus, "river regime" describes a series of characteristic power-law relationships between discharge and width, depth and slope [ 1 ]
Nonpoint source water pollution affects a water body from sources such as polluted runoff from agricultural areas draining into a river, or wind-borne debris blowing out to sea. Nonpoint source air pollution affects air quality, from sources such as smokestacks or car tailpipes .
Extensive remediation actions on the river began in the 1970s with the implementation of wastewater discharge permits and consequent reduction of wastewater discharges, and sediment removal operations, which have continued into the 21st century. [5] Fish consumption advisories remain in effect. [6]
reduced discharge into the sea, which may have various consequences like coastal erosion (e.g. in Ghana [7]) and saltwater intrusion in delta's and estuaries (e.g. in Egypt, see Aswan dam). Current water withdrawal from the river Nile for irrigation is so high that, despite its size, the river does not reach the sea in dry periods. [6]
River Station Average discharge (m 3 /s) Outflow Mean Min Max 1 South America: Amazon: Amazon Delta: 220,800 180,000 340,000 Atlantic Ocean [2] 2 Asia:
River engineering, a branch of civil engineering, deals with the process of planned human intervention to improve and restore rivers for human and environmental needs. With modern technologies, data collection and modelling, navigation can be improved, dredging reduced and new habitats can be created.