Low-tide elevation

Last updated

Low-tide elevation is a naturally formed area of land which is above water and surrounded by water at low tide but submerged at high tide. [1] It may be a mudflat or reef.

Mudflat coastal wetlands

Mudflats or mud flats, also known as tidal flats, are coastal wetlands that form when mud is deposited by tides or rivers. They are found in sheltered areas such as bays, bayous, lagoons, and estuaries. Mudflats may be viewed geologically as exposed layers of bay mud, resulting from deposition of estuarine silts, clays and marine animal detritus. Most of the sediment within a mudflat is within the intertidal zone, and thus the flat is submerged and exposed approximately twice daily.

Reef A bar of rock, sand, coral or similar material, lying beneath the surface of water

A reef is a bar of rock, sand, coral or similar material, lying beneath the surface of water. Many reefs result from natural, abiotic processes—deposition of sand, wave erosion planing down rock outcrops, etc.—but the best known reefs are the coral reefs of tropical waters developed through biotic processes dominated by corals and coralline algae.

Contents

Low tide elevations may be used as basepoints for the calculation of maritime zones unless they lie at a distance exceeding the breadth of the territorial sea (12-miles) from the nearest mainland or island.

Related Research Articles

United Nations Convention on the Law of the Sea International maritime law

The United Nations Convention on the Law of the Sea (UNCLOS), also called the Law of the Sea Convention or the Law of the Sea treaty, is the international agreement that resulted from the third United Nations Conference on the Law of the Sea, which took place between 1973 and 1982. The Law of the Sea Convention defines the rights and responsibilities of nations with respect to their use of the world's oceans, establishing guidelines for businesses, the environment, and the management of marine natural resources. The Convention, concluded in 1982, replaced four 1958 treaties. UNCLOS came into force in 1994, a year after Guyana became the 60th nation to ratify the treaty. As of June 2016, 167 countries and the European Union have joined in the Convention. It is uncertain as to what extent the Convention codifies customary international law.

International waters water outside of national jurisdiction

The terms international waters or trans-boundary waters apply where any of the following types of bodies of water transcend international boundaries: oceans, large marine ecosystems, enclosed or semi-enclosed regional seas and estuaries, rivers, lakes, groundwater systems (aquifers), and wetlands.

Freedom of the seas Customary international maritime law

Freedom of the seas is a principle in the international law and sea. It stresses freedom to navigate the oceans. It also disapproves of war fought in water. The freedom is to be breached only in a necessary international agreement.

Law of the Sea is a body of international law that concerns the principles and rules by which public entities, especially states, interact in maritime matters, including navigational rights, sea mineral rights, and coastal waters jurisdiction. It is the public law counterpart to admiralty law, which concerns private maritime intercourse. The United Nations Convention on the Law of the Sea (UNCLOS), concluded in 1982 and coming into force in 1994, is generally accepted as a codification of customary international law of the sea.

Intertidal zone The area of coast between low and high tide marks

The intertidal zone, also known as the foreshore and seashore and sometimes referred to as the littoral zone, is the area that is above water at low tide and underwater at high tide. This area can include many different types of habitats, with many types of animals, such as starfish, sea urchins, and numerous species of coral.

Canadian Internal Waters is a Canadian term for the waters "on the landward side of the baselines of the territorial sea of Canada."

Internal waters waters on the landward side of the baseline of a nations territorial waters, except in archipelagic states

According to the United Nations Convention on the Law of the Sea, a nation's internal waters include waters on the side of the baseline of a nation's territorial waters that is facing toward the land, except in archipelagic states. It includes waterways such as rivers and canals, and sometimes the water within small bays.

Hot pursuit refers to the urgent and direct pursuit of a criminal suspect by law enforcement officers, or by belligerents under international rules of engagement for military forces. Such a situation grants the officers in command powers they otherwise would not have.

Socotra Rock rock in the Yellow Sea

Socotra Rock is a submerged rock 4.6 metres (15 ft) below sea level located in the Yellow Sea. International maritime law stipulates that a submerged rock outside of a nation's territorial sea can not be claimed as territory by any nation. However, the rock is the subject of a maritime dispute between South Korea and China, which consider it to lie within their respective exclusive economic zones.

A baseline, as defined by the United Nations Convention on the Law of the Sea, is the line along the coast from which the seaward limits of a state's territorial sea and certain other maritime zones of jurisdiction are measured, such as a state's exclusive economic zone. Normally, a sea baseline follows the low-water line of a coastal state. When the coast is deeply indented, has fringing islands or is highly unstable, straight baselines may be used.

Territorial claims in the Arctic

The Arctic consists of land, internal waters, territorial seas, exclusive economic zones (EEZs) and high seas. All land, internal waters, territorial seas and EEZs in the Arctic are under the jurisdiction of one of the eight Arctic coastal states: Canada, Norway, Russia, Denmark, Iceland, Sweden, Finland and the United States. International law regulates this area as with other portions of the Earth.

Exclusive economic zone of Portugal maritime boundary

Portugal has the 5th largest exclusive economic zone (EEZ) within Europe, 4th largest of the EU and the 20th largest EEZ in the world, at 1,727,408 km2.

Subi Reef geographical object

Subi Reef, also known as Zhubi Reef is a reef in the Spratly Islands of the South China Sea located 26 km (16 mi) southwest of Philippine-occupied Thitu Island. It is occupied by China, and claimed by Taiwan, Vietnam, and the Philippines. It currently falls under the de facto jurisdiction of Nansha islands, Sansha city, Hainan province, China.

<i>Philippines v. China</i> arbitration between the Philippines and China

Philippines v. China, also known as the South China Sea Arbitration, was an arbitration case brought by the Republic of the Philippines against the People's Republic of China under Annex VII to the United Nations Convention on the Law of the Sea (UNCLOS) concerning certain issues in the South China Sea including the legality of China's Nine-dash line.

Exclusive economic zone of Somalia maritime boundary

The exclusive economic zone of Somalia covers 830,389 km2 in the Indian Ocean. It extends to a distance of 200 nautical miles from the baselines, from which the breadth of the nation's territorial waters is measured. In accordance with Law No. 37 passed in 1972, Somalia's EEZ falls under its territorial sovereignty.

Qit'at Jaradah is a cay in the Persian Gulf to the east of Bahrain Island, located 32 km (20 mi) east of Manama, the capital of Bahrain. Historically, the feature is above water only during spring low tide; it sits approximately midway between Bahrain and Qatar, within the 12-mile (19 km) territorial waters of both countries. It was one of several maritime features contributing to a long running dispute between Bahrain and Qatar.

References

  1. United Nations Convention on the Law of the Sea Article 13 PART II

See also

Territorial waters Coastal waters that are part of a nation-states sovereign territory

The term territorial waters is sometimes used informally to refer to any area of water over which a state has jurisdiction, including internal waters, the territorial sea, the contiguous zone, the exclusive economic zone and potentially the continental shelf. In a narrower sense, the term is used as a synonym for the territorial sea.

Exclusive economic zone UN maritime boundary

An exclusive economic zone (EEZ) is a sea zone prescribed by the United Nations Convention on the Law of the Sea over which a state has special rights regarding the exploration and use of marine resources, including energy production from water and wind. It stretches from the baseline out to 200 nautical miles (nmi) from its coast. In colloquial usage, the term may include the continental shelf. The term does not include either the territorial sea or the continental shelf beyond the 200 nmi limit. The difference between the territorial sea and the exclusive economic zone is that the first confers full sovereignty over the waters, whereas the second is merely a "sovereign right" which refers to the coastal state's rights below the surface of the sea. The surface waters, as can be seen in the map, are international waters.

Continental shelf A portion of a continent that is submerged under an area of relatively shallow water known as a shelf sea

A continental shelf is a portion of a continent that is submerged under an area of relatively shallow water known as a shelf sea. Much of the shelves were exposed during glacial periods and interglacial periods.