The dynamic of the Yintan Beach erosion in the Beihai, Guangxi

Liu Tao; Wang Zengjun; Zhang Jianbin

doi:10.3969/j.issn.0253-4193.2020.07.013

Volume 42 Issue 7

Nov. 2020

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Liu Tao，Wang Zengjun，Zhang Jianbin. The dynamic of the Yintan Beach erosion in the Beihai, Guangxi [J]. Haiyang Xuebao，2020, 42(7)：147–154 doi: 10.3969/j.issn.0253-4193.2020.07.013

Citation:

Liu Tao，Wang Zengjun，Zhang Jianbin. The dynamic of the Yintan Beach erosion in the Beihai, Guangxi [J]. Haiyang Xuebao，2020, 42(7)：147–154 doi: 10.3969/j.issn.0253-4193.2020.07.013

Citation:

Liu Tao，Wang Zengjun，Zhang Jianbin. The dynamic of the Yintan Beach erosion in the Beihai, Guangxi [J]. Haiyang Xuebao，2020, 42(7)：147–154 doi: 10.3969/j.issn.0253-4193.2020.07.013

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The dynamic of the Yintan Beach erosion in the Beihai, Guangxi

doi: 10.3969/j.issn.0253-4193.2020.07.013

Liu Tao^{1, 2
,},
Wang Zengjun^{3
,
,},
Zhang Jianbin²

1.
School of Marine Sciences, Guangxi University, Nanning 530004, China
2.
Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning 530001, China
3.
Beihai Marine Environmental Monitoring Center Station, State Oceanic Administration, Beihai 536000, China

Received Date: 2019-07-22
Rev Recd Date: 2019-09-16

Available Online: 2020-11-18

Publish Date: 2020-07-25

Abstract

Abstract

The Yintan Beach in the Beihai, Guangxi, is a typical macro-tidal beach characterized by wide beach surface and pure white sand. In recent years, Yintan Beach has been eroded, which result in the retreat of coastline and the disappearance each shoulder. To study the dynamic of beach erosion, the elevation, slope and retreat distance of beach surface were comprehensively analyzed. The change of beach surface elevation caused by Typhoon 1621 and Typhoon 1713, as well as the water level process and offshore wave characteristics during the two typhoons were studied. The relationship between typhoon track and beach erosion was discussed. The results show that since 1985, the position line of average sea level has retreated by 0−80 m. Beach erosion has resulted in a decrease in the slope of the upper beach surface and a more convex beach profile. The main reason for beach erosion is the frequency increase of typhoon landing in recent years. Typhoons that originate in the western Pacific Ocean and enter the Beibu Gulf through the northern part of the Hainan Island or Leizhou Peninsula can form strong storms and cause higher coastal water increase along the coast of the Guangxi, which is most likely to lead to strong beach erosion events.
- beach erosion,
- typhoon,
- beach section shape,
- Yintan Beach

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References(24)

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