Wibowo, Rahmat Catur and Dewanto, Ordas and Sarkowi, Muh (2020) Structure from Motion (SfM) to Characterize Fluvial Sedimentology: Case Study Way Semaka River. Journal of Physics: Conference Series, 1673. (Submitted)

[img]
Preview
Text
ICSTAR-Full-Paper-RCW.pdf

Download (142kB) | Preview

Abstract

Abstract. Structure from motion (SfM) has seen rapid uptake recently in the fluvial sedimentology. This uptake is not least due to the widespread availability of cheap unmanned aerial vehicles/drones, which help mitigate the challenging terrain and deliver efficient and reproducible and high-accuracy images and topographical data. The current study describes the application of SfM in order to build a geomorphological model and estimates surface water velocity of Way Semaka River in BNS region, West Lampung. Way Semaka river is river type with a large 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 and proven by current meter measurements onsite with an RMS error 0.25. Manual geomorphic unit level 2 analysis revealed that for the zone within the channel, 9% of the coverage consisted of basins, 35% of the coverage consisted of convexity, 9% consisted of planar features and 37% of the coverage consisted of the transition zone.

Item Type: Article
Subjects: Q Science > QC Physics
Q Science > QE Geology
Divisions: Fakultas Teknik (FT) > Prodi Teknik Geofisika
Depositing User: ORDAS DEWA
Date Deposited: 09 Nov 2020 06:17
Last Modified: 09 Nov 2020 06:17
URI: http://repository.lppm.unila.ac.id/id/eprint/24736

Actions (login required)

View Item View Item