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Response of the Qing’an Bay beach in Xuwen to Typhoon Bebinca based on high frequency observation data
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Chunhua Zeng1, 2, Shibing Zhu3, Zhiqiang Li3, *, Huiling Zhang1, *, Gaocong Li3
Haiyang Xuebao | 2020, 42(11) : 100 - 111
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Haiyang Xuebao | 2020, 42(11): 100-111
• Article •
Response of the Qing’an Bay beach in Xuwen to Typhoon Bebinca based on high frequency observation data
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Chunhua Zeng1, 2, Shibing Zhu3, Zhiqiang Li3, *, Huiling Zhang1, *, Gaocong Li3
Affiliations
  • 1 College of Ocean Engineering, Guangdong Ocean University, Zhanjiang 524088, China
  • 2 College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China
  • 3 College of Electronic and Information Engineering, Guangdong Ocean University, Zhanjiang 524088, China
Published: 2020-11-25 doi: 10.3969/j.issn.0253-4193.2020.11.010
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Tropical cyclone is one of the most active dynamic factors for beach evolution. However, there are few field observations of beach during storms due to terrible working conditions. In this paper, 6 and a half days of high-frequency observation during the Typhoon Bebinca was conducted at the Qing’an Bay beach. The observation data included full-time hydrodynamics and 164 groups hourly variation of beach surface elevation. Three main analysis results were identified: (1) Controlled by the spatial distribution of Hainan Island-Leizhou Peninsula and the changeable track of the Typhoon Bebinca, the storm surge was maintained between 0.38−0.5 m, the wave height first decreased from 0.78 m to 0.43 m and then increased to 0.56 m. (2) The beach berm was eroded and a sand bar was formed under the water. There were three response stages of the beach berm during the Typhoon Bebinca, eroded downward fast, eroded slowly to the maximum, and recovered by oscillating deposition. The recovery amplitude could reach one quarter of the maximum erosion depth during the Typhoon Bebinca. (3) The response process of the Qing'an Bay beach to Typhoon Bebinca was mainly composed of four modes. The first mode reflected the erosion process of the spring tidal beach berm and the formation of the sand bar. The second mode indicated the erosion of the storm beach berm, the compensatory recovery of the spring tidal beach berm and the growth of the sand bar. The third mode revealed the bilateral transport process of sediment caused by the uprush and undertow at the secondary breaking position of waves. The fourth mode showed that the strong waves suspended the sediment in the surf zone, and some of the suspended sediment which was transported to the deep-water area by littoral current and offshore current may lost permanently.

high frequency observation  /  Qing’an Bay  /  Typhoon Bebinca  /  beach response  /  mode
Chunhua Zeng, Shibing Zhu, Zhiqiang Li, Huiling Zhang, Gaocong Li. Response of the Qing’an Bay beach in Xuwen to Typhoon Bebinca based on high frequency observation data[J]. Haiyang Xuebao, 2020 , 42 (11) : 100 -111 . DOI: 10.3969/j.issn.0253-4193.2020.11.010
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Year 2020 volume 42 Issue 11
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Article Info
doi: 10.3969/j.issn.0253-4193.2020.11.010
  • Receive Date：2019-09-05
  • Online Date：2026-03-27
  • Published：2020-11-25
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  • Received：2019-09-05
  • Revised：2019-11-07
Funding
Affiliations
    1 College of Ocean Engineering, Guangdong Ocean University, Zhanjiang 524088, China
    2 College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China
    3 College of Electronic and Information Engineering, Guangdong Ocean University, Zhanjiang 524088, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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