Assessment and prediction of the shoreline evolution along Tam Hai Tombolo, Quang Nam province

  • Tuan Vu Minh

    National University of Civil Engineering, No.55 Giai Phong Street, Hanoi, Vietnam
  • Hau Luong Phuong

    National University of Civil Engineering, No.55 Giai Phong Street, Hanoi, Vietnam
  • Thanh Nguyen Viet

    University of Transport and Communications, No.3 Cau Giay Street, Hanoi, Vietnam
  • Tam Ho Sy

    Thuyloi University, No.175 Tay Son Street, Hanoi, Vietnam
Email: vietthanh@utc.edu.vn
Keywords: Shoreline, Remote Sensing & GIS, erosion, accretion, Tam Hai tombolo.

Abstract

Tam Hai Tombolo with three sides facing the sea and one side bordering Truong Giang river, is also the place where the coastal erosion and accretion occur complicatedly. In this work, the combination of remote sensing, geographic information system (GIS) techniques coupled with the Digital Shoreline Analysis System (DSAS) and linear regression method were applied for detecting and evaluating the historical shoreline changes between 1975 and 2019 as well as predicting the position of the future shoreline in Tam Hai tombolo. The results show a clearer and detailed picture of the erosion/accretion rates and locations in the study area in the past as well as in the future. In the period of 1975-2019, the process of erosion and accretion took place alternately. Erosion phenomenon still prevails in the North coast with an rate of -18,51 m/year, meanwhile, the South coast is mostly depositioned at an rate of about +1,1 m/year. However, in the future period of 2019-2050, both the North and South coast areas of Tam Hai Tombolo are predicted to be eroded. Shoreline variability assessment with multi-time remote sensing images provides a fast and accurate tool for coastal management and protection.

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Received
14/01/2021
Revised
20/04/2021
Accepted
14/05/2021
Published
15/06/2021
Type
Research Article
How to Cite
Vũ Minh, T., Lương Phương, H., Nguyễn Viết, T., & Hồ Sỹ, T. (1623690000). Assessment and prediction of the shoreline evolution along Tam Hai Tombolo, Quang Nam province. Transport and Communications Science Journal, 72(5), 605-619. https://doi.org/10.47869/tcsj.72.5.8
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