MECHANISM OF OFFSHORE SAND DISCHARGE INTO SUBMARINE CANYON TRIGGERED BY CONSTRUCTING DETACHED BREAKWATER CLOSE TO SHORELINE

MECHANISM OF OFFSHORE SAND DISCHARGE INTO SUBMARINE CANYON TRIGGERED BY CONSTRUCTING DETACHED BREAKWATER CLOSE TO SHORELINE
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靠近海岸线修建独立防波堤引发近海排砂进入海底峡谷的机制

DOI：
10.9753/icce.v32.sediment.18
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Toshinori Ishikawa
Toshinori Ishikawa
中科院分区：
--
文献类型：
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作者：
Koji Yamada;T. Uda;Y. Suwa;T. San;K. Furuike;Toshinori Ishikawa

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几个海底峡谷已经在富山岛下岛川海岸的阿玛塔地区近海开发
Several submarine canyons have developed offshore of the Aramata region of the Shimoni-ikawa coast in Toyama Bay, which is one of the three deep bays in Japan. The Kurobe River with a steep bed slope flows into the sea immediately north of this region, and a large amount of sediment has been supplied to this area, which has been transported by southward longshore sand transport. However, beach erosion has occurred owing to the decrease in sediment supply from the Kurobe River. Furthermore, since the construction of detached breakwaters as a measure against beach erosion, offshore sand transport has accelerated and beach erosion has become more severe. In this study, aerial photographs and bathymetric survey data were analyzed, then the mechanism of offshore sand transport was investigated using the BG model proposed by Serizawa et al. (2007).