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The ocean is the body of salt water that covers approx. 70.8% of Earth. [8] In English, the term ocean also refers to any of the large bodies of water into which the world ocean is conventionally divided. [9] The following names describe five different areas of the ocean: Pacific, Atlantic, Indian, Antarctic/Southern, and Arctic.
The pelagic zone refers to the open, free waters away from the shore, where marine life can swim freely in any direction unhindered by topographical constraints. The oceanic zone is the deep open ocean beyond the continental shelf, which contrasts with the inshore waters near the coast, such as in estuaries or on the continental shelf. Waters ...
The Atlantic Ocean is the second-largest of the world's five oceanic divisions, with an area of about 85,133,000 km 2 (32,870,000 sq mi). [2] It covers approximately 17% of Earth's surface and about 24% of its water surface area. During the Age of Discovery, it was known for separating the New World of the Americas ( North America and South ...
t. e. It is the open sea region beyond the edge of the continental shelf and includes 65% of the ocean's completely open water. The oceanic zone has a wide array of undersea terrain, including trenches that are often deeper than Mount Everest is tall, as well as deep-sea volcanoes and basins. While it is often difficult for life to sustain ...
The typical tidal range in the open ocean is about 1 metre (3 feet) (blue and green on the map on the right). Closer to the coast, this range is much greater. [citation needed] Coastal tidal ranges vary globally and can differ anywhere from near zero to over 11 m (36 ft).
A New Map of Asia, from the Latest Authorities, by John Cary, Engraver, 1806, shows the Southern Ocean lying to the south of both the Indian Ocean and Australia. Freycinet Map of 1811 – resulted from the 1800–1803 French Baudin expedition to Australia and was the first full map of Australia ever to be published.
OpenStreetMap ( OSM) is a free, open geographic database updated and maintained by a community of volunteers via open collaboration. Contributors collect data from surveys, trace from aerial imagery and also import from other freely licensed geodata sources. OpenStreetMap is freely licensed under the Open Database License and as a result ...
t. e. The terms international waters or transboundary waters apply where any of the following types of bodies of water (or their drainage basins) transcend international boundaries: oceans, large marine ecosystems, enclosed or semi-enclosed regional seas and estuaries, rivers, lakes, groundwater systems ( aquifers ), and wetlands. [1]