119:, over 10,000 years ago, when the sea level was about 120 m (390 ft) lower and the mouth of the Hudson River was near the edge of the continental shelf, about 100 mi (160 km) east of its present site. The river discharged sediment that helped carve the canyon aided by underwater avalanches of mud and sand. Recent maps of the canyon reveal tributaries of an extraordinary underwater drainage network that is strikingly similar to terrestrial rivers. Tidal currents sweep up and down the channel; and on occasion, during big storms, cold ocean water is pushed up the Hudson Canyon to spread out on the shelf. Thus the Hudson Canyon continues to be cut by traveling sediments.
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99:, then carving through a deep notch of about 1 km (0.62 mi) depth in the shelf break, and running down the continental rise. Tidally associated flows of about 30 cm/s (1.1 km/h) up and down the deeper parts of the canyon have been recorded. As silt, sand and mud are carried down the Hudson River, they flow into the canyon and out into the deep sea.
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on the continental shelf and is 2.2 km (1.4 mi) deep at the base of the continental slope. Over an 80 km (50 mi) distance, the average slope of the canyon floor is 1.5°. At this point the canyon is as much as 12 km (7.5 mi) wide (from east rim to west rim) and as much as
107:, whose cliffs are over 1.61 kilometres (1.00 mi) deep and 640 km (400 mi) long. It is the largest known ocean canyon off the East Coast of the United States, and one of the largest submarine canyons in the world. The canyon is located near the 100 m (330 ft)
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1.1 km (3,600 ft) deep from canyon rim to canyon floor across the continental slope. The floor of the canyon is less than 500 m (1,600 ft) wide across the upper part of the slope and broadens to about 900 m (3,000 ft) at the base of the slope.
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The Hudson Canyon proper is located about 160 km (99 mi) east of the mouth of the Hudson River off the New Jersey coast. Its walls rise 1.2 kilometres (0.75 mi) from the canyon floor, making it comparable to the
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217:"Sea Floor Topography and Backscatter Intensity of the Hudson Canyon Region Offshore of New York and New Jersey: U.S. Geological Survey Open-File Report 2004-1441, CD-ROM"
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Butman, Bradford; Twichell, David C.; Rona, Peter A.; Tucholke, Brian E.; Middleton, Tammie J.; Robb, James M. (2006).
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of several kilometers width, starting as a 20–40 m (66–131 ft) depression at Hudson
Channel southward from
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Submarine canyon in the
Atlantic Ocean off the coast of New York and New Jersey, United States
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was created from a revision of this article dated 20 August 2022
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122:"Hudson Canyon" also designates a location marked by a navigational
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off New York and New Jersey at the outlet of the Hudson River
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A false-color depiction of the Hudson Canyon on the
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165:National Centers for Environmental Information
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71:that begins from the shallow outlet of the
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327:Submarine canyons of the Atlantic Ocean
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209:General and cited references
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128:traffic separation scheme
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307:NOAA Hudson Canyon Page
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242:Listen to this article
221:U.S. Geological Survey
161:"NOAA Bathymetric Map"
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130:of the Hudson Canyon–
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200:Butman et al. 2006
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316:Categories
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281:2022-08-20
142:References
28:72°28′26″W
25:39°39′54″N
147:Citations
89:sea level
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