基于Argus影像与现场测量探究海滩对台风“摩羯”的响应特征

田野; 印萍; 贾永刚; 刘金庆; 朱亚美; 曹珂; 陈小英

doi:10.16562/j.cnki.0256-1492.2019090601

基于Argus影像与现场测量探究海滩对台风“摩羯”的响应特征

田野^1,2,,
印萍²,
贾永刚¹,
刘金庆^2,3, ,,
朱亚美²,
曹珂²,
陈小英²

1.
中国海洋大学环境科学与工程学院，青岛 266100
2.
中国地质调查局青岛海洋地质研究所，青岛 266071
3.
山东科技大学地球科学与工程学院，青岛 266590

基金项目: 中国地质调查局地质调查项目“长江口等重点海岸带综合地质调查”（DD20160145），“浙江中部海岸带综合地质调查”（DD20190276）

详细信息

作者简介:
田野（1995—），女，硕士生，从事海岸地质灾害监测和研究，E-mail：982574870@qq.com

通讯作者:
刘金庆（1986—），男，博士，讲师，从事海洋地质研究，E-mail：jinqingliu@hotmail.com

中图分类号: P737.17
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出版历程
- 收稿日期: 2019-09-05
- 修回日期: 2020-01-13
- 网络出版日期: 2020-07-02
- 刊出日期: 2020-09-30

Response of beach characteristics to typhoon “Yagi”: Evidence from Argus video images and on-site measurement

1.
Environmental Geotechnical Engineering Institute, Ocean University of China, Qingdao 266100,China
2.
Key Laboratory of Marine Environmental Geology, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China
3.
College of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China

摘要

摘要: 综合分析2018年14号台风“摩羯”前后在山东省文登市南海海滩获取的Argus监测站数字影像、海滩剖面地形重复测量和沉积物粒度分析结果，探讨研究海滩地貌和沉积物对台风的响应特征。在台风“摩羯”的影响下，海滩剖面整体呈现上部侵蚀、坡度变陡、平均粒径值变小、分选变好的趋势，而下部淤积、坡度变缓、平均粒径值变大、分选变差的趋势，岸线平均后退3.8 m。Argus数字影像连续观测数据显示台风期间波浪条件主导海岸线响应，且台风导致的强浪破碎后波能在海滩的不均匀耗散使台风后海滩发育韵律性地貌—滩角。
- 台风 /
- 砂质海滩 /
- 海滩响应 /
- Argus /
- 山东文登
Abstract: Integrated analysis is carried out on the video images from the Argus monitoring station, topographic measurements from beach profiles and sediment particle size parameters obtained from the Nanhai Beach in Wendeng City, Shandong Province before and after the 14^th Typhoon “Yagi” in 2018. Under the action of the typhoon, the upper part of the beach was eroded, the slope became steeper, the mean grain size decreased, and the sorting of sediments improved, whereas the lower part of the beach was depositional, the slope became gentler, particles coarsened, the sorting of sediments was getting poorer, and the shoreline receded for an average of 3.8 m. The Argus continuous observation video image data further suggests that under the action of typhoon, wave dominated the response of coastline and the cusp beach will develop in a rhythmic manner resulted from the uneven dissipation of wave energy on the beach after the breaking of strong waves caused by typhoon.
- typhoon /
- sandy coast /
- beach response /
- Argus /
- Wendeng city

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图 1 研究区位置和岸滩监测系统布局示意图

Figure 1. Location map showing the monitoring system of Nanhai beach of Wendeng, Shandong province

下载: 全尺寸图片幻灯片

图 2 台风“摩羯”前后岸线位置变化图

Figure 2. Change of shoreline before and after Typhoon “Yagi”

下载: 全尺寸图片幻灯片

图 3 台风“摩羯”影响期间海滩每日时均图像变化

Figure 3. Images at 10:00 am during typhoon “Yagi”

下载: 全尺寸图片幻灯片

图 4 台风前后海滩剖面地形及沉积物粒度频率变化

注：粒度曲线横坐标为Φ值粒径，纵坐标为频率百分数。蓝线表示台风前，红线表示台风后。

Figure 4. Changes of beach topography and sediment grain size frequency before and after typhoon “Yagi”

Note: The red line indicates grain size before the typhoon and the blue line indicates that after the typhoon.

下载: 全尺寸图片幻灯片

图 5 加密区台风前后各岸滩剖面地形对比

Figure 5. Topographic variation of beach profile near an Argus station before and after typhoon “Yagi”

下载: 全尺寸图片幻灯片

图 6 台风期间Argus瞬时图像反应的强浪作用（Pj4剖面附近）

Figure 6. Argus snap image showing the strong wave effect during typhoon

下载: 全尺寸图片幻灯片

图 7 P01剖面的人为活动扰动情况

Figure 7. Impact of human activity on the beach near profile P01

下载: 全尺寸图片幻灯片

图 8 C5镜头不同时段视频图像

Figure 8. C5 video images at different time

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表 1 台风前后海滩剖面特征变化

Table 1 Characteristics of beach profile before and after typhoon

	坡度/（°）	高滩UED（m³/m）	中滩UED（m³/m）	低滩UED（m³/m）	岸线变化/m	陡坎变化/m	陡坎高程/m
P01	9.9	2.13	−10.36	6.49	−1.09	−2.24	0.05
P02	4.7	3.25	−10.20	17.24	−2.3	−4.3	0.2
P03	5.4	10.77	−16.15	6.23	−7.6	−7.71	0.28
P04	4.5	2.56	−9.6	8.79	−4.7	−4.8	0.29
P05	5.0	0.4	−1.55	6.15	−2.2	−1.34	0.1
P06	7.2	1.66	−5.53	6.15	−3.6	−8.42	0.25
Pj1	7.6	0	−11.5	NA	−3.45	−1.36	0.04
Pj2	7.2	0	−13.96	NA	−2.41	−3.36	0.17
Pj3	6.0	0	−18.27	NA	−2.18	−0.9	−0.02
Pj4	8.1	NA	−6.66	NA	−1.57	−0.73	−0.28
注：UED为单宽蚀积量数据，向海淤积为+，向陆后退为−；MSL位置变化和沙丘陡坎位置变化以向海方向移动为+，向陆方向移动为−，沙丘陡坎高程上升为+，下降为−。

下载: 导出CSV

表 2 台风前后海滩剖面粒度参数统计

Table 2 Statistics on grain size parameters on beach profiles before and after the typhoon

潮区	时间	平均粒径/ϕ	分选系数	粗砂含量/%	中砂含量/%	细砂含量/%
海滩下部	台风前	1.97	0.88	20.52	18.48	57.36
海滩下部	台风后	2.08	0.74	13.78	30.18	53.55
海滩中部	台风前	1.78	0.97	18.29	33.62	42.61
海滩中部	台风后	1.93	0.75	14.77	37.23	45.35
海滩上部	台风前	1.54	0.84	30.58	35.51	32.6
海滩上部	台风后	1.64	0.7	23.5	44.05	30.89

下载: 导出CSV

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