A strait is a water body connecting two seas or two water basins. While the landform generally constricts the flow, the surface water still flows, for the most part, at the same elevation on both sides and through the strait in both directions. In some straits there may be a dominant directional current through the strait. Most commonly, it is a narrowing channel that lies between two land masses . Some straits are not navigable, for example because they are either too narrow or too shallow, or because of an unnavigable reef or archipelago . Straits are also known to be loci for sediment accumulation. Usually, sand-size deposits occur on both the two opposite strait exits, forming subaqueous fans or deltas .
6-714: The Jamaica Channel is a strait separating the islands of Jamaica and Hispaniola , in the Caribbean Sea . Along with the Windward Passage to its north. Due to its location about 1,000 kilometres (620 mi) north-east of the Panama Canal , it is a main sea lane through which vessels with Pacific Ocean destinations sailing from the eastern seaboards of the United States and Canada , as well as from Europe , frequently pass. The strait
12-401: Is about 190 kilometres (120 mi) wide with depths of up to 1,200 metres (3,900 ft). Located in the strait about 55 km (34 mi) west of Haiti is Navassa Island , an uninhabited and disputed island measuring 5.2 km (2.0 sq mi). Strait The terms channel , pass , or passage can be synonymous and used interchangeably with strait , although each
18-562: Is sometimes differentiated with varying senses. In Scotland, firth or Kyle are also sometimes used as synonyms for strait. Many straits are economically important. Straits can be important shipping routes and wars have been fought for control of them. Numerous artificial channels, called canals , have been constructed to connect two oceans or seas over land, such as the Suez Canal . Although rivers and canals often provide passage between two large lakes, and these seem to suit
24-583: The converse of isthmuses . That is, while a strait lies between two land masses and connects two large areas of ocean, an isthmus lies between two areas of ocean and connects two large land masses. Some straits have the potential to generate significant tidal power using tidal stream turbines . Tides are more predictable than wave power or wind power . The Pentland Firth (a strait) may be capable of generating 10 GW . Cook Strait in New Zealand may be capable of generating 5.6 GW even though
30-475: The formal definition of strait, they are not usually referred to as such. Rivers and often canals, generally have a directional flow tied to changes in elevation, whereas straits often are free flowing in either direction or switch direction, maintaining the same elevation. The term strait is typically reserved for much larger, wider features of the marine environment. There are exceptions, with straits being called canals; Pearse Canal , for example. Straits are
36-477: The total energy available in the flow is 15 GW. Straits used for international navigation through the territorial sea between one part of the high seas or an exclusive economic zone and another part of the high seas or an exclusive economic zone are subject to the legal regime of transit passage ( Strait of Gibraltar , Dover Strait , Strait of Hormuz ). The regime of innocent passage applies in straits used for international navigation (1) that connect
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