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Mackenzie River – over 250 km 3 /year; Yukon River – over 150 km 3 /year; Siberia. Yenisey – over 5% of world's fresh water in basin – second largest after the Amazon; Ob River – over 500 km 3 /year; Lena River – over 450 km 3 /year; New Guinea. Fly and Sepik Rivers – total over 300 km 3 /year in only about 150,000 km 2 of basin area.
In the context of ocean currents, a volume of one million cubic meters may be imagined as a "slice" of ocean with dimensions 1 km × 1 km × 1 m (width × length × thickness). At this scale, these units can be more easily compared in terms of width of the current (several km), depth (hundreds of meters), and current speed (as meters per second).
This article lists lakes with a water volume of more than 100 km 3, ranked by volume.The volume of a lake is a difficult quantity to measure. [1] Generally, the volume must be inferred from bathymetric data by integration.
Earth's 1,335,000,000 cubic kilometers (320,000,000 cu mi) of sea contain about 97.2 percent of its known water [12] [c] and covers approximately 71 percent of its surface. [ 3 ] : 7 [ 17 ] Another 2.15% of Earth's water is frozen, found in the sea ice covering the Arctic Ocean , the ice cap covering Antarctica and its adjacent seas , and ...
The global annual runoff into the oceans (38,500–44,200 km 3 /year) is dominated by runoff into the South Atlantic from eastern South America, into the western Pacific from east Asia, and into the Indian Ocean from India, and southeast Asia.
The entire ocean, containing 97% of Earth's water, spans 70.8% of Earth's surface, [8] making it Earth's global ocean or world ocean. [ 23 ] [ 25 ] This makes Earth, along with its vibrant hydrosphere a "water world" [ 43 ] [ 44 ] or " ocean world ", [ 45 ] [ 46 ] particularly in Earth's early history when the ocean is thought to have possibly ...
A marine biologist collects data from a reef affected by coral bleaching from high water temperatures in Trat, Thailand. ... Every year, reefs provide about $2.7 trillion in goods and services ...
At any given time, about 2 × 10 13 tonnes of this is in the form of water vapor in the Earth's atmosphere (for practical purposes, 1 cubic metre of water weighs 1 tonne). Approximately 71% of Earth's surface, an area of some 361 million square kilometres (139.5 million square miles), is covered by ocean .