Generation of DEM for Urban Transformation of Hanoi, Vietnam

• Yonezawa, Go

  Institute of Sustainability Science, Kyoto University

Abstract

Generating a Digital Elevation Model (DEM) which contains information about the latitude, longitude and the elevation plays an important role towards an explanation of urban transformation. DEM is a digital representation of ground surface topography and the most important element of topographic analysis for urban transformation (i.e. evidence of existence such as old rivers, lakes, fills and land subsidence) and sustainability (i.e. improvement of urban infrastructure and disaster prevention). In this study, the DEM of Hanoi City in Vietnam was generated by the elevation survey data. Based on the surface estimation method using Cubic B-Spline Function, it is generated at 2 m resolution and the contour interval is 0.5 m. The very subtle elevation gaps which can not be distinguished on the satellite images are significantly recognizable on this DEM. Meanwhile, the topographic map as a paper map was generated by French government in 1950 which belongs to French library. The DEM at 2 m resolution is generated based on the STRIPE method.

Journal

• Kyoto Working Papers on Area Studies: G-COE Series

  Kyoto Working Papers on Area Studies: G-COE Series 60 1-10, 2009-03

  Center for Southeast Asian Studies, Kyoto University

Details

• CRID: 1050001335732004096
• NII Article ID: 120004108278
• HANDLE: 2433/155764
• Text Lang: en
• Article Type: article
• Data Source:
  • IRDB
  • CiNii Articles
  • KAKEN