“barrier island”的概念、定义、翻译、参考文献-科学参考

barrier island

Geology and Earth Sciences

An elongated ridge that may extend from a few hundred metres to 100 km along a coast forming a segmented barrier-bar complex, and found between two tidal inlets. Barrier-island systems have a lagoonal area on their landward side, and often have wind-blown dunes and vegetation on the exposed (seaward) side of the barrier. There are three main hypotheses to explain the origin of barrier islands: (a) the building up of submarine bars; (b) spit progradation parallel to the coast and segmentation by inlets; and (c) submergence of subaerial coastal beach ridges by a rise in sea level. Barrier islands are most common in areas of low tidal range.

Geography

A long, narrow, offshore island, usually having beaches and dunes on the seaward side, often with lagoons on the landward side, such as the islands enclosing Pamlico Sound, off the coast of North Carolina. The formation of barrier islands has been explained as the drowning of beach ridges (Stutz and Pilky (2002) J. Coastal Res. SI 36) or the progradation of spits (van Mauren (2005) Marine Geol. 224). Most barrier islands and spits are in a state of landwards retreat in response to a combination of eustatic sea-level rise and local land subsidence. See Lentz and Hapke (2011) Geomorph. 126 on the longevity and success of short-term anthropogenic modifications to a coastal barrier system.

单词	barrier island
释义	barrier island Geology and Earth Sciences An elongated ridge that may extend from a few hundred metres to 100 km along a coast forming a segmented barrier-bar complex, and found between two tidal inlets. Barrier-island systems have a lagoonal area on their landward side, and often have wind-blown dunes and vegetation on the exposed (seaward) side of the barrier. There are three main hypotheses to explain the origin of barrier islands: (a) the building up of submarine bars; (b) spit progradation parallel to the coast and segmentation by inlets; and (c) submergence of subaerial coastal beach ridges by a rise in sea level. Barrier islands are most common in areas of low tidal range. Geography A long, narrow, offshore island, usually having beaches and dunes on the seaward side, often with lagoons on the landward side, such as the islands enclosing Pamlico Sound, off the coast of North Carolina. The formation of barrier islands has been explained as the drowning of beach ridges (Stutz and Pilky (2002) J. Coastal Res. SI 36) or the progradation of spits (van Mauren (2005) Marine Geol. 224). Most barrier islands and spits are in a state of landwards retreat in response to a combination of eustatic sea-level rise and local land subsidence. See Lentz and Hapke (2011) Geomorph. 126 on the longevity and success of short-term anthropogenic modifications to a coastal barrier system.
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