Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography (한국측량학회지)

Korean Society of Surveying, Geodesy, Photogrammetry and Cartography (한국측량학회)
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Applicability of Wind-Vegetation Model in Small Scale Sand Dunes

소규모 사구 지역 바람-식생모델 적용성 분석

  • Received : 2017.11.27
  • Accepted : 2017.12.22
  • Published : 2017.12.31
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Abstract

Aeolian dunes are typical sand dunes which are maintained and developed by interactions of earth surface, wind and vegetation. Developing a model which can predict the changing phenomena of these sand dunes is vital in enhancing the efficiency of understanding and management of terrains such as land degradation. In the existing models, however, there is lack of studies on the long - term behaviors of the sand dunes and application to actual topography. Therefore, this study applied the wind-vegetation model considering vegetation to the actual topography and analyzed the applicability of the wind-vegetation model by analyzing the long-term behaviors and comparing them with actual data. Through analysis, study found out that use of wind-vegetation model and data from unmanned aerial vehicle is effective in analyzing the changes of actual dune topography. Except for the boundary, the error of about 1m was generated compared with the change of the actual dune topography.

풍성사구는 지표, 바람과 식생간의 상호 작용에 의해 유지${\cdot}$발달되는 대표적인 사구이다. 이러한 사구의 변형을 예측하는 모형을 개발하는 것은 토지 황폐화와 같은 지형 경광의 이해와 관리의 효율성을 높이는데 매우 중요하다. 하지만 기존의 모형에서는 사구의 장기 거동에 대한 연구와 이를 이용한 실제 지형 적용에 관한 연구는 미비한 실정이다. 따라서, 본 연구에서는 식생을 고려한 바람-식생 모형을 실제 지형에 적용하고, 장기 거동을 실제 데이터와 비교하여 바람-식생 모형의 적용성을 분석하였다. 분석을 통해서 바람-식생 모형과 무인항공기 데이터를 이용하는 방법이 경계면을 제외하고 실제 사구지형의 변화와 최대 1m 내외의 오차로 나타나 장기 거동 분석에 효과적인것을 알 수 있었다.

Keywords

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