Sand Spit Elongation and Sediment Balance at Cua Lo Inlet in Central Vietnam

Dinh V. Duy, Hitoshi Tanaka, Yuta Mitobe, Nguyen Q.D. Anh, Nguyen T. Viet

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Erosion is significant on the downdrift beach of Cua Lo Inlet, which is located in Central Vietnam. The elongation of Cua Lo Inlet's updrift sand spit together with severe erosion of the downdrift bank is raising numerous social problems such as flood safety and land loss. In this study, a series of Landsat and Google Earth images were used to analyze and investigate the inlet recent morphological changes and evolution. Since 1970 the inlet has constantly migrated towards the sediment transport pathway, and its traveling distance has reached 1700 m. In order to quantitatively investigate such characteristics, the tip coordinates and the area of the sand spit updrift of the inlet were calculated. In particular, the area of the sand spit has increased remarkably, and the increasing rate is almost constant. Using this value, the rate of sand volume transported along the updrift sand spit by the waves was estimated and it is in good agreement with the longshore sediment transport rate of the surrounding beach.

Original languageEnglish
Pages (from-to)32-39
Number of pages8
JournalJournal of Coastal Research
Issue numbersp1
Publication statusPublished - 2018 Sept 1


  • Cua Lo
  • Vietnam
  • elongation
  • erosion
  • inlet migration
  • sand spit
  • satellite image
  • sediment transport

ASJC Scopus subject areas

  • Ecology
  • Water Science and Technology
  • Earth-Surface Processes


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