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North Sea

North Sea
NASA NorthSea1 2.jpg
Location Atlantic Ocean
Coordinates 56°N 03°E / 56°N 3°E / 56; 3 (North Sea)Coordinates: 56°N 03°E / 56°N 3°E / 56; 3 (North Sea)
Type Sea
Primary inflows Baltic Sea, Elbe, Weser, Ems, Rhine/Waal, Meuse, Scheldt, Spey, Don, Dee, Tay, Forth, Tyne, Tees, Humber, Thames
Basin countries Norway, Denmark, Germany, the Netherlands, Belgium, France and the United Kingdom
Max. length 960 km (600 mi)
Max. width 580 km (360 mi)
Surface area 570,000 km2 (220,000 sq mi)
Average depth 95 m (312 ft)
Max. depth 700 m (2,300 ft)
Water volume 54,000 km3 (4.4×1010 acre·ft)
Salinity 3.4 to 3.5%
Max. temperature 17 °C (63 °F)
Min. temperature 6 °C (43 °F)
References Safety at Sea and Royal Belgian Institute of Natural Sciences

The North Sea is a marginal sea of the Atlantic Ocean located between Great Britain, Scandinavia, Germany, the Netherlands, Belgium, and France. An epeiric (or "shelf") sea on the European continental shelf, it connects to the ocean through the English Channel in the south and the Norwegian Sea in the north. It is more than 970 kilometres (600 mi) long and 580 kilometres (360 mi) wide, with an area of around 570,000 square kilometres (220,000 sq mi).

The North Sea has long been the site of important European shipping lanes as well as a major fishery. The sea is a popular destination for recreation and tourism in bordering countries and more recently has developed into a rich source of energy resources including fossil fuels, wind, and early efforts in wave power.

Historically, the North Sea has featured prominently in geopolitical and military affairs, particularly in Northern Europe but also globally through the power northern Europeans projected worldwide during much of the Middle Ages and into the modern era. The North Sea was the centre of the Vikings' rise. Subsequently, the Hanseatic League, the Netherlands, and the British each sought to dominate the North Sea and thus the access to the markets and resources of the world. As Germany's only outlet to the ocean, the North Sea continued to be strategically important through both World Wars.

The coast of the North Sea presents a diversity of geological and geographical features. In the north, deep fjords and sheer cliffs mark the Norwegian and Scottish coastlines, whereas in the south it consists primarily of sandy beaches and wide mudflats. Due to the dense population, heavy industrialization, and intense use of the sea and area surrounding it, there have been a number of environmental issues affecting the sea's ecosystems. Environmental concerns — commonly including overfishing, industrial and agricultural runoff, dredging, and dumping among others — have led to a number of efforts to prevent degradation of the sea while still making use of its economic potential.


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