대한지리학회지 (Journal of the Korean Geographical Society)

대한지리학회 (The Korean Geographical Society)
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2차원 지질시간 규모 수치지형발달모형의 활용과 개발을 위한 이론적 토대

Theoretical Framework for Application and Development of Two-dimensional Numerical Landscape Evolution Models on a Geological Time Scale

  • 변종민 (서울대학교 사회교육연구소)
  • Byun, Jong-Min (Research Institute for Social Science Education, Seoul National University)
  • 투고 : 2011.05.22
  • 심사 : 2011.06.28
  • 발행 : 2011.06.30
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초록

컴퓨터 기술이 발달하면서, 지질시간 규모에서 다양한 지형형성작용들의 복합적인 영향으로 인한 지형발달을 모의하는 것이 가능하게 되었다. 본 연구는 최근 들어 활용도가 점차 높아지고 있는 2차원 지질시간 규모 수치지형발달모형을 소개하며, 특히 지질 시간 규모에서 주요한 지형형성작용들을 모형화하기 위한 접근 방법들을 중점적으로 다루었다. 수치지형발달모형은 지형체계를 구성하는 체계요소와 이들 간의 관계를 미분방정식으로 표현한 후 이의 해를 수치적으로 구함으로써 지형발달을 모의한다. 수치지형발달모형 연구는 장기간에 걸친 지형체계요소들간의 관계를 정량적 관점에서 최대한 단순하게 모형화하고 이를 결합하는 것에서부터 시작되었고, 후대 연구자들에 의해 보다 정교해지고 있다. 본 연구에서 소개한 이론들은 수치지형발달모형을 한반도에 적용하거나 개발하려는 연구자들에게 도움이 될 것으로 기대된다.

Advances in computer technology enabled us to simulate the integrated effects of various geomorphic processes on landscape evolution. This review introduces a theoretical framework for 2-dimensional numerical landscape evolution models (NLEMs) which have recently been used for various research purposes. In particular much attention is paid to the approaches deployed to model major geomorphic processes on a geological time scale in previous research. NLEMs can simulate landscape evolution by numerically solving the partial differential equation which represents the relationship among the geomorphic system components (GSCs). Simple process specifications of the relationships among GSCs on a long-term time scale in terms of quantification and attempts to combine processes represent the initial research on NLEMs. Later researchers have taken these simple NLEMs and elaborated on them. Introducing the theories of NLEMs in this review is expected to help researchers trying to utilize or develop NLEMs.

키워드

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