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The river pushes a vast plume of fresh water into the ocean. The plume is about 400 km (250 mi) long and between 100 and 200 km (62 and 124 mi) wide. The fresh water, being lighter, flows on top of the seawater, diluting the salinity and altering the colour of the ocean surface over an area up to 2,500,000 km 2 (970,000 sq mi) in extent. For ...
The Detroit River is an international river in North America.The river, which forms part of the border between the U.S. state of Michigan and the Canadian province of Ontario, flows west and south for 24 nautical miles (44 km; 28 mi) from Lake St. Clair to Lake Erie as a strait in the Great Lakes system.
The water will be used to provide both an annual base flow and a spring "pulse flow" to mimic the river's original snowmelt-driven regime. [324] [325] The first pulse flow, an eight-week release of 105,000 acre-feet (130,000,000 m 3), was initiated on March 21, 2014, with the aim of revitalising 2,350 acres (950 hectares) of wetland. [326]
Today, most of its flow is diverted for irrigation and municipal use in the Phoenix area which leave the river below Gila Bend dry in most years. However, in certain seasons of extreme precipitation, such as the floods of January 1993, the Gila can carry massive amounts of water far exceeding the natural flow of the Colorado River.
With an average flow at the mouth of about 265,000 cu ft/s (7,500 m 3 /s), [7] the Columbia is the largest river by discharge flowing into the Pacific from the Americas [25] and is the fourth-largest by volume in the U.S. [7] The average flow where the river crosses the international border between Canada and the United States is 2,790 m 3 /s ...
The lower half of the river is a tidal estuary, deeper than the body of water into which it flows, occupying the Hudson Fjord, an inlet that formed during the most recent period of North American glaciation, estimated at 26,000 to 13,300 years ago. Even as far north as the city of Troy, the flow of the river changes direction with the tides.
The average daily flow during the water years 1931–2018 was 11,498 cubic feet (325.6 m 3) /s. [2] The highest average daily flow ever recorded on the Potomac at Little Falls, Maryland (near Washington, D.C.), was in March 1936 when it reached 426,000 cubic feet (12,100 m 3) /s. [2]
Water flow in the Arkansas River (as measured in central Kansas) has dropped from approximately 248 cubic feet per second (7.0 m 3 /s) average from 1944–1963 to 53 cubic feet per second (1.5 m 3 /s) average from 1984–2003, largely because of the pumping of groundwater for irrigation in eastern Colorado and western Kansas.