浙江朱家尖岛东沙海滩对热带风暴“娜基莉”的响应及风暴后的恢复

郭俊丽; 时连强; 童宵岭; 郑禹君; 徐岱璐

doi:10.3969/j.issn.0253-4193.2018.09.012

浙江朱家尖岛东沙海滩对热带风暴“娜基莉”的响应及风暴后的恢复

doi: 10.3969/j.issn.0253-4193.2018.09.012

1.
国家海洋局第二海洋研究所, 浙江杭州 310012;南京大学地理与海洋科学学院, 江苏南京 210023
2.
国家海洋局第二海洋研究所, 浙江杭州 310012
3.
浙江科技学院, 浙江杭州 310023

基金项目: 海洋公益性行业科研专项（201405037）；中央级公益性科研院所基本科研业务费专项资金项目（JG1205）。

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出版历程
- 收稿日期: 2017-08-03
- 修回日期: 2017-12-10

The response to tropical storm Nakri and the restoration of Dongsha Beach in Zhujiajian Island, Zhejiang Province

1.
Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China
2.
Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
3.
Zhejiang University of Science & Technology, Hangzhou 310023, China

摘要

摘要: 海滩对风暴的响应及风暴后海滩的恢复过程一直以来都是国内外海滩研究的热点。本文通过对浙江舟山市朱家尖岛东沙海滩地形地貌的现场调查，对比分析了热带风暴"娜基莉"影响下东沙海滩剖面的蚀积变化，探讨了海滩在热带风暴发生后的恢复情况。结果表明，在"娜基莉"影响期间，因风暴浪为向岸浪，东沙海滩几乎遭受全线侵蚀，12个剖面单宽侵蚀总量为73.46 m³/m，其中海滩直线段较两个遮蔽段侵蚀显著。由于海滩在风暴前进方向的左侧，且"娜基莉"距东沙较远，使得东沙海滩普遍侵蚀但强度较小。东沙海滩在热带风暴后的恢复过程中，不同部位的地貌调整和冲淤变化不同，下岬角遮蔽段基本趋于稳定，直线段和上岬角遮蔽段在恢复过程中因受海滩季节性调整的影响呈现持续侵蚀。
- 东沙海滩 /
- 侵蚀 /
- 海滩对热带风暴的响应 /
- 海滩恢复
Abstract: The response of beach to storm and the restoration after storm have always been a hotspot in researches on sandy beach. Based on the topography investigation of Dongsha Beach in Zhujiajian Island, Zhejiang Province, the profile variations of Dongsha Beach under the influence of tropical storm Nakri were analyzed, and the restoration in one year after storm was discussed. The results show that Dongsha Beach almost all suffered erosion during the tropical storm Nakri resulting from storm wave was shoreward wave, the total erosional volume per unit of 12 sections was 73.46 m³/m, and the erosion extent of straight zone's sections were more serious than the two shadow zones' sections. As the beach was on the left side of the storm direction, and Nakri was far from Dongsha Beach, Dongsha Beach had been generally eroded at low intensity. During the recovery process of Dongsha Beach after this storm, geomorphic adjustment and erosion conditions between different parts were distinct. The lower headland shadow zone of beach tended to be stable, the straight zone and the upper headland shadow zone could not recover as the situation before storm due to the seasonal adjustment of beach.
- Dongsha Beach /
- erosion /
- beach response to tropical storm /
- beach restoration

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