Numerical Modelling Based on Digital Elevation Model (DEM) Analysis of Debris Flow at Rinjani Volcano, West Nusa Tenggara, Indonesia
Debris flow is a disaster occurring in cases where a sediment particle flows at high speed, down to the slope, and usually with high viscosity and speed. This disaster is very destructive and human life-threatening, especially in mountainous areas. As one of the world’s active volcanoes in the world...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universitas Gadjah Mada
2021-08-01
|
| Series: | Journal of the Civil Engineering Forum |
| Subjects: | |
| Online Access: | https://jurnal.ugm.ac.id/jcef/article/view/63417 |
| _version_ | 1811271600810491904 |
|---|---|
| author | Muhammad Fatih Qodri Noviardi Noviardi Al Hussein Flowers Rizqi Lindung Zalbuin Mase |
| author_facet | Muhammad Fatih Qodri Noviardi Noviardi Al Hussein Flowers Rizqi Lindung Zalbuin Mase |
| author_sort | Muhammad Fatih Qodri |
| collection | DOAJ |
| description | Debris flow is a disaster occurring in cases where a sediment particle flows at high speed, down to the slope, and usually with high viscosity and speed. This disaster is very destructive and human life-threatening, especially in mountainous areas. As one of the world’s active volcanoes in the world, Rinjani had the capacity to produce over 3 million m3 volume material in the 2015 eruption alone. Therefore, this study proposes a numerical model analysis to predict the debris flow release area (erosion) and deposition, as well as the discharge, flow height, and velocity. The Digital Elevation Model (DEM) was analyzed in ArcGIS, to acquire the Cartesian coordinates and “hillshade” form. This was also used as a method to produce vulnerable areas in the Jangkok watershed. Meanwhile, the Rapid Mass Movement Simulation (RAMSS) numerical modeling was simulated using certain parameters including volume, friction, and density, derived from the DEM analysis results and assumptions from similar historical events considered as the best-fit rheology. In this study, the release volume was varied at 1,000,000 m3, 2,000,000 m3, and 3,000,000 m3, while the simulation results show movement, erosion, and debris flow deposition in Jangkok watershed. This study is bound to be very useful in mitigating debris flow as disaster anticipation and is also expected to increase community awareness, as well as provide a reference for structural requirements, as a debris flow prevention. |
| first_indexed | 2024-04-12T22:23:50Z |
| format | Article |
| id | doaj.art-3f84c6d7bac74659b460babce0c3ea20 |
| institution | Directory Open Access Journal |
| issn | 2581-1037 2549-5925 |
| language | English |
| last_indexed | 2024-04-12T22:23:50Z |
| publishDate | 2021-08-01 |
| publisher | Universitas Gadjah Mada |
| record_format | Article |
| series | Journal of the Civil Engineering Forum |
| spelling | doaj.art-3f84c6d7bac74659b460babce0c3ea202022-12-22T03:14:14ZengUniversitas Gadjah MadaJournal of the Civil Engineering Forum2581-10372549-59252021-08-017327928810.22146/jcef.6341730488Numerical Modelling Based on Digital Elevation Model (DEM) Analysis of Debris Flow at Rinjani Volcano, West Nusa Tenggara, IndonesiaMuhammad Fatih Qodri0Noviardi Noviardi1Al Hussein Flowers Rizqi2Lindung Zalbuin Mase3Department of Geological Engineering, Institut Teknologi Nasional Yogyakarta, INDONESIA Babarsari Rd., Caturtunggal, Depok, Sleman, Daerah Istimewa YogyakartaDepartment of Geological Engineering, Institut Teknologi Nasional Yogyakarta, INDONESIA Babarsari Rd., Caturtunggal, Depok, Sleman, Daerah Istimewa YogyakartaDepartment of Geological Engineering, Institut Teknologi Nasional Yogyakarta, INDONESIA Babarsari Rd., Caturtunggal, Depok, Sleman, Daerah Istimewa YogyakartaDepartment of Civil Engineering, University of Bengkulu, INDONESIA WR. Supratman Rd., Kandang Limun, BengkuluDebris flow is a disaster occurring in cases where a sediment particle flows at high speed, down to the slope, and usually with high viscosity and speed. This disaster is very destructive and human life-threatening, especially in mountainous areas. As one of the world’s active volcanoes in the world, Rinjani had the capacity to produce over 3 million m3 volume material in the 2015 eruption alone. Therefore, this study proposes a numerical model analysis to predict the debris flow release area (erosion) and deposition, as well as the discharge, flow height, and velocity. The Digital Elevation Model (DEM) was analyzed in ArcGIS, to acquire the Cartesian coordinates and “hillshade” form. This was also used as a method to produce vulnerable areas in the Jangkok watershed. Meanwhile, the Rapid Mass Movement Simulation (RAMSS) numerical modeling was simulated using certain parameters including volume, friction, and density, derived from the DEM analysis results and assumptions from similar historical events considered as the best-fit rheology. In this study, the release volume was varied at 1,000,000 m3, 2,000,000 m3, and 3,000,000 m3, while the simulation results show movement, erosion, and debris flow deposition in Jangkok watershed. This study is bound to be very useful in mitigating debris flow as disaster anticipation and is also expected to increase community awareness, as well as provide a reference for structural requirements, as a debris flow prevention.https://jurnal.ugm.ac.id/jcef/article/view/63417numerical modelingdemdebrisrammsrinjani |
| spellingShingle | Muhammad Fatih Qodri Noviardi Noviardi Al Hussein Flowers Rizqi Lindung Zalbuin Mase Numerical Modelling Based on Digital Elevation Model (DEM) Analysis of Debris Flow at Rinjani Volcano, West Nusa Tenggara, Indonesia Journal of the Civil Engineering Forum numerical modeling dem debris ramms rinjani |
| title | Numerical Modelling Based on Digital Elevation Model (DEM) Analysis of Debris Flow at Rinjani Volcano, West Nusa Tenggara, Indonesia |
| title_full | Numerical Modelling Based on Digital Elevation Model (DEM) Analysis of Debris Flow at Rinjani Volcano, West Nusa Tenggara, Indonesia |
| title_fullStr | Numerical Modelling Based on Digital Elevation Model (DEM) Analysis of Debris Flow at Rinjani Volcano, West Nusa Tenggara, Indonesia |
| title_full_unstemmed | Numerical Modelling Based on Digital Elevation Model (DEM) Analysis of Debris Flow at Rinjani Volcano, West Nusa Tenggara, Indonesia |
| title_short | Numerical Modelling Based on Digital Elevation Model (DEM) Analysis of Debris Flow at Rinjani Volcano, West Nusa Tenggara, Indonesia |
| title_sort | numerical modelling based on digital elevation model dem analysis of debris flow at rinjani volcano west nusa tenggara indonesia |
| topic | numerical modeling dem debris ramms rinjani |
| url | https://jurnal.ugm.ac.id/jcef/article/view/63417 |
| work_keys_str_mv | AT muhammadfatihqodri numericalmodellingbasedondigitalelevationmodeldemanalysisofdebrisflowatrinjanivolcanowestnusatenggaraindonesia AT noviardinoviardi numericalmodellingbasedondigitalelevationmodeldemanalysisofdebrisflowatrinjanivolcanowestnusatenggaraindonesia AT alhusseinflowersrizqi numericalmodellingbasedondigitalelevationmodeldemanalysisofdebrisflowatrinjanivolcanowestnusatenggaraindonesia AT lindungzalbuinmase numericalmodellingbasedondigitalelevationmodeldemanalysisofdebrisflowatrinjanivolcanowestnusatenggaraindonesia |