Wibowo, Rahmat Catur and Mulyanto, Bagus Sapto and Dewanto, Ordas and Sarkowi, Muh (2021) Structure from Motion (SfM) method to characterize fluvial sedimentology in Way Semaka river in Lampung province, Indonesia. In: The 6th International Conference of Science, Technology, and Interdisciplinary Research 2020 (IC-STAR 2020) 20th-21st October 2020, Bandar Lampung, Indonesia, 20-21 Oktober 2020, Unila.
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39. Prosiding Internasional Scopus, Wibowo_2021_IOP_Conf._Ser.__Mater._Sci._Eng._1173_012003.pdf Download (2MB) | Preview |
Abstract
Abstract. Structure from motion (SfM) has been applied recently in fluvial sedimentology. This application is due to the availability of many low-cost unmanned aerial vehicles/drones, which can help overcome challenging terrain, provide efficient and reproducible and high-accuracy topographic images and data. The current study describes the application of SfM to build a geomorphological model and estimate the surface water velocity of the Way Semaka River in the Bandar Negeri Suoh (BNS) region in the West Lampung area. Way Semaka is a river type with an extensive meandering system and stable extension tectonic regime relatively. River morphology approximately 96.62 m width and 4 m depth in straight (relatively) area, whereas in channel area approximately 171.22 m width and 5 m depth. The velocity range between 0.39 – 1.56 m/s based on image analysis proven by current meter measurements onsite with an RMS error of 0.25. Manual geomorphic unit level 2 analysis revealed that 9% of the coverage consisted of basins for the channel's zone, 35% of the coverage consisted of convexity, 9% consisted of planar features, and 37% of the coverage consisted of the transition zone.
| Item Type: | Conference or Workshop Item (Lecture) |
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| Subjects: | Q Science > Q Science (General) Q Science > QE Geology |
| Divisions: | Fakultas Teknik (FT) > Prodi Teknik Geofisika |
| Depositing User: | ORDAS DEWA |
| Date Deposited: | 23 May 2022 07:49 |
| Last Modified: | 23 May 2022 07:49 |
| URI: | http://repository.lppm.unila.ac.id/id/eprint/41743 |
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