• Title/Summary/Keyword: 한국 지형학회

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Comparison of Terrain Changes in Debris Flow-Damaged Area and Morpho2DH Model Results (토석류 피해지의 지형 변화와 Morpho2DH 모형 결과의 비교 분석)

  • Jong-Seo Lee;Kwang-Youn Lee;Suk-Hee Yoon;Dong-Hyun Kim;Sang Ho Lee;Se-Wook Oh;Dong-Geun Kim
    • Journal of Korean Society of Forest Science
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    • v.113 no.3
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    • pp.339-348
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    • 2024

  • Debris flow is a typical type of mountainous sediment disaster that can cause widespread damage to both lives and property, making it essential to understand its behavioral characteristics for effective prevention. In this study, pre- and post-event Light Detection And Ranging(LiDAR) data from the Dosan-ri area in Bonghyeon-myeon, Yeongju-si, Gyeongsangbuk-do, Republic of Korea where debris flows occurred in 2023, were used to calculate the actual affected area and terrain change volume caused by the debris flow. These calculated values were then compared with those derived from the numeric simulation model, Morpho2DH, based on field surveys and laboratory investigation data. Additionally, the model's applicability was assessed by conducting cross-sectional elevation analyses based on the extent of the affected area and comparisons of the results. The findings indicate that the debris flow affected area and terrain change volume estimated by the Morpho2DH model were approximately 152% and 178% higher, respectively, compared to the LiDAR-based results. Pearson correlation analysis of the cross-sectional elevation changes showed a positive correlation, with Pearson Correlation Coefficients(PCC) of at least 0.65

  • https://doi.org/10.14578/jkfs.2024.113.3.339 인용 PDF HTML

양당리굴내 생성물의 분포 및 특성

  • 오종우
    • Proceedings of the Speleological Society Conference
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    • 2002.11a
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    • pp.19-30
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    • 2002

  • 카르스트 지형과 관련된 동굴생성물(Speleothems)의 발달과정은 ［그림 1］에서 요약되어 있듯이 일정한 규칙의 발달과정을 거치면서 형성되는 동굴수문학적 (Speleo-hydology)인 속성을 가지고 있다(Ford, 1989). 동굴생성물은 주로 기반암으로부터 침식되는 용해물질에 의하여 다양한 생성물을 제공하거나 외부 하천의 유입에 따른 외래산 퇴적물질 등이 상호 교차되어 집적되어있다. (중략)

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