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The Java Sea covers the southern section of the 1,790,000 km 2 (690,000 sq mi) Sunda Shelf. A shallow sea, it has a mean depth of 46 m (151 ft). It measures about 1,600 km (990 mi) east-west by 380 km (240 mi) north-south [4] and occupies a total surface area of 320,000 km 2 (120,000 sq mi).
At a basic level, it is typically calculated in metres using the formula: [1] UKC = Charted Depth − Draft-/+ Height of Tide. Ship masters and deck officers can obtain the depth of water from Electronic navigational charts. [5] More dynamic or advanced calculations include safety margins for manoeuvring effects and squat. [7]
The strait is notoriously difficult to navigate because of this shallowness, very strong tidal currents, sandbanks, and man-made obstructions such as oil platforms off the Java coast. [ 3 ] For centuries, the strait was an important shipping route, especially during the period when the Dutch East India Company used it as the gateway to the ...
The rise of sea level during a meltwater pulse 14,600 to 14,300 years Before Present was as much as 16 meters within 300 years. [6] Present sea levels submerge a number of Pleistocene paleo river systems that drained much of Sundaland during the last glacial maximum 18,000 to 20,000 years ago. [7] To the east of the Sunda Shelf is the Sahul Shelf.
Bathymetric charts showcase depth using a series of lines and points at equal intervals, called depth contours or isobaths (a type of contour line). A closed shape with increasingly smaller shapes inside of it can indicate an ocean trench or a seamount, or underwater mountain, depending on whether the depths increase or decrease going inward.
It is 3,200 kilometres (2,000 mi) long with a maximum depth of 7,290 metres (23,920 feet). [2] Its maximum depth is the deepest point in the Indian Ocean . The trench stretches from the Lesser Sunda Islands past Java , around the southern coast of Sumatra to the Andaman Islands , and forms the boundary between the Indo-Australian plate and ...
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The Bruun rule is a formula for estimating the magnitude of the retreat of the shoreline of a sandy shore in response to changes in sea level. Originally published in 1962 by Per Bruun, [ 1 ] the Bruun rule was the first to give a relationship between sea level rise and shoreline recession . [ 2 ]