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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]
This page was last edited on 30 January 2025, at 06:38 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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.
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.
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 ]
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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 ...