Analysis of a Large-scale Erosion in Hai Hau Coast, Northern Vietnam

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  • ベトナム北部ハイハウ海岸の大規模侵食の経過とその分析
  • ベトナム ホクブ ハイハウ カイガン ノ ダイキボ シンショク ノ ケイカ ト ソノ ブンセキ

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The coastal area of Hai Hau district, located in the northeast Vietnam, has a 30 km-long of shoreline, which is facing serious erosion. The area is part of the Red River Delta and is a depositional land. From the beginning of 20th century, erosion became prominent in the area and huge efforts have been put in the last 50 years. The damages on local activities were characterized through interviews with local government officers and residents. Remote sensing data analyses and 1-line numerical modeling have been applied to trace and reproduce the processes of shoreline recession. Incident waves were calculated based on 20 years wave data (1989-2008) at an offshore grid point given by the European Center Medium-Range Weather Forecast. The calculated shoreline change agreed fairly with the result of remote sensing data analyses.

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