Use of structure-from-motion algorithms for geomorphological analyses of simple volcanic structures: A case study of Chilcayoc Chico and four other volcanoes of the Andahua Group, Peru

Lewińska, Paulina; Gałaś, Andrzej

doi:10.1016/j.jsames.2020.103058

Cited by 6 publications

(3 citation statements)

References 43 publications

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“…For quality control and to verify the results, we chose to compare two different methods: the "prismoid" method and a routine developed in Matlab© named "Convhull". Although the Convhull estimation is more accurate (because it uses a larger data set), the prismoid method is considered a standard procedure to calculate the volume of earth masses and is used by land surveyors and engineers (Lewinska and Galas, 2021). The Convhull function can approximate the volume of irregular polygons from 2D and 3D point sets, and is usually applied to geometrical studies and volume estimations (Carrea, et al, 2021).…”

Section: Volume Estimationmentioning

confidence: 99%

Historical and morphological evidence for multi-stage growth of El Volcancito, Volcán de Colima

Bretón

Ibáñez

León

et al. 2022

Journal of Volcanology and Geothermal Research

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Section: Volume Estimationmentioning

confidence: 99%

Historical and morphological evidence for multi-stage growth of El Volcancito, Volcán de Colima

Bretón

Ibáñez

León

et al. 2022

Journal of Volcanology and Geothermal Research

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“…In the Chilcayoc field, initial out pour ing points for lava flows are lo cated at breached scoria cones such as the Chico, Chilcayoc and Chilcayoc Grande vol ca noes. The Chico sco ria cone is breached by a lava flow, and the edges of the older erup tive prod ucts are ex posed in the walls of the main crater (Lewiñska and Ga³aoe, 2021). The classic and reg u lar monogenetic sco ria cone of Jechapita has a small vol ume of 0.02 km 3 and prob a bly stands at the top of a lava vent.…”

Section: Generation III (10 Ka-recent)mentioning

confidence: 99%

Constraints on the nature and evolution of the volcanic fields of the Andahua Group, Central Volcanic Zone, southern Peru

Gałaś

Németh

Lewińska

2022

Self Cite

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The Andahua Group is a dis tinct clus ter of typ i cally monogenetic vol ca noes lo cated in the north ern most part of the Cen tral Vol ca nic Zone in the An des, char ac ter ized by small-vol ume lava domes and sco ria cones. Seven vol ca nic clus ters have been dis tin guished. Us ing sat el lite im ag ery, geo log i cal map ping, and field work, we found a to tal of 103 lava domes, 43 sco ria cones, and 3 small com pos ite vol ca noes. Most of the lava domes are monogenetic but 9 were formed by mul ti ple erup tions. Petro gen etic mod els have been de vel oped for the magma evo lu tion of the Andahua Group. They show lo cal crustal in fluence on the mag mas gen er ated, and pos si ble con trols on the magma path way to the sur face, and po ten tial seg re ga tion. Local compositional vari a tion of the crustal rocks is in ferred to have a strong in flu ence on the magma that as cends through the thick con ti nen tal crust. As sim i la tion and con tam i na tion by deeply seated granitoids of the Arequipa and Paracas mas sifs are also in ferred to play a role in the fi nal mag matic prod ucts. Fu ture ac tiv ity with gas emis sions from the Andahua Group vol canoes may cause haz ard ous con di tions for tour ists.

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“…Advances in computer hardware, digital cameras and UAVs have made these techniques possible for a wide range of users to generate 3D models from the images. SfM technique has been demonstrated as highly promising in several studies [41][42][43][44][45][46]. Based on that, the transition towards automated processes and photogrammetry-based techniques are highly important, although more detailed analysis and software comparison was out of scope of this particular study.…”

Section: Introductionmentioning

confidence: 97%

Geometric Accuracy of 3D Reality Mesh Utilization for BIM-Based Earthwork Quantity Estimation Workflows

Kavaliauskas

Židanavičius

Jurelionis

2021

IJGI

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Current surveying techniques are typically applied to survey the as-is condition of buildings, brownfield sites and infrastructure prior to design. However, within the past decade, these techniques evolved significantly, and their applications can be enhanced by adopting unmanned aerial vehicles (UAVs) for data acquisition, up-to-date software for creating 3D reality mesh, which in turn opens new possibilities for much more efficient construction site surveying and constant updating and process management. In this study the workflows of three UAV-based photogrammetry techniques: Real Time Kinematic (RTK), Post-Processing Kinematic (PPK) and Global Positioning System (GPS) based on control points were analyzed, described, and compared to conventional surveying method with Global Navigation Satellite System (GNSS) receiver. Tests were performed under realistic conditions in 36 ha quarry in Lithuania. The results of the relationship between ground sample distance (GSD) and the comparison of volume measurements under each technique, including conventional method were analyzed. The deviation of data collected on field vs. generated in reality mesh, including ground control points (GCPs) and check points (CHPs) with different configurations, was investigated. The research provides observations on each workflow in the terms of efficiency and reliability for earthwork quantity estimations and explains processing schemes with advanced commercial software tools.

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Use of structure-from-motion algorithms for geomorphological analyses of simple volcanic structures: A case study of Chilcayoc Chico and four other volcanoes of the Andahua Group, Peru

Cited by 6 publications

References 43 publications

Historical and morphological evidence for multi-stage growth of El Volcancito, Volcán de Colima

Historical and morphological evidence for multi-stage growth of El Volcancito, Volcán de Colima

Constraints on the nature and evolution of the volcanic fields of the Andahua Group, Central Volcanic Zone, southern Peru

Geometric Accuracy of 3D Reality Mesh Utilization for BIM-Based Earthwork Quantity Estimation Workflows

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