Characteristics of Shoreline Retreat Due to the 2011 Tohoku Earthquake and Tsunami and Its Recovery After Three Years
Characteristics of Shoreline Retreat Due to the 2011 Tohoku Earthquake and Tsunami and Its Recovery After Three Years
复制标题
2011年东北地震海啸造成的海岸线退缩特征及其三年后的恢复
DOI：
10.1007/978-3-319-28528-3_8
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
A. Mano
中科院分区：
文献类型：
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作者：
K. Udo;K. Tojo;Yuriko Takeda;Hitoshi Tanaka;A. Mano
通过分析地壳变形、海啸高度和航空照片等数据，调查了2011年东北地震和海啸导致的海岸线后退特征以及从青森县到茨城县的广大地区3年后的恢复情况。无论海啸溢流深度如何，海堤未破裂和河口位置较远的地方都没有发生明显的退缩，这表明海啸袭击期间的海堤状况是防止海岸线严重退缩的最重要因素之一。事件发生三年后，与平原海岸相比，被侵蚀的里亚海岸的恢复情况微不足道。恢复的关键自然因素是地震后地壳向上变形以及海啸后邻近海岸或河流的沉积物补给；然而，至少在不久的将来，这些在里亚海岸是不可能发生的。
We investigate the characteristics of shoreline retreat due to the 2011 Tohoku Earthquake and Tsunami and its recovery after 3 years over a wide area from Aomori Prefecture to Ibaraki Prefecture by analyzing the data of crustal deformation, tsunami height, and aerial photographs. There were no significant retreats where the seawall remained unbreached and where river mouths were distantly located regardless of the tsunami overflow depth over the seawall, indicating that the seawall condition during tsunami strikes is one of the most important factors that prevent serious shoreline retreat. After 3 years from the event, recovery of the eroded Ria coasts has been insignificant compared to the plain coasts. The key natural factors for the recovery are the upward crustal deformation after the earthquake and sediment supply from adjacent coasts or rivers after the tsunami; however, these could not be expected at the Ria coasts at least in near future.
2011年东日本大浪波造成鲛川河口周边海岸线变化的调查
DOI：
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发表时间：
2012
期刊：
影响因子：
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作者：
石蕊;仲吉信人;神田学;菅澤晶子・赤松隆・高山雄貴;Mohammad Bagus Adityawan
通讯作者：
Mohammad Bagus Adityawan