Application of terrestrial laser scanner on tidal flat morphology at a typhoon event timescale

Xie, Weimin; He, Qing; Zhang, Keqi; Guo, Leicheng; Wang, Xianye; Shen, Jian; Cui, Zheng

doi:10.1016/j.geomorph.2017.04.034

Cited by 58 publications

(22 citation statements)

References 66 publications

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“…Thus, particle dynamics play significant roles in sedimentological and geomorphological processes as well as biogeochemical cycles in estuaries. Estuary morphic evolution is not a purely natural process, as it is jointly controlled by natural influences including riverine discharge, tides, waves, catastrophic events, and sea‐level change, along with anthropogenic activities including upstream reservoir construction, tidal flat reclamation, dredging, and the construction of navigation channels and harbors (Jiang et al., 2017; Milliman et al., 2017; Xie et al., 2017). Estuarine channel construction significantly changes estuarine boundary and dynamic conditions and affects sediment transport within the estuary, which in turn causes channel siltation that increases maintenance costs (Dalrymple & Choi, 2007; Syvitski et al., 2009; Zhu et al., 2016).…”

Section: Introductionmentioning

confidence: 99%

Particle Dynamics in a Managed Navigation Channel Under Different Tidal Conditions as Determined Using Multiple Radionuclide Tracers

et al. 2021

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Estuaries represent the passageway for 95% of the terrestrial sediment flux entering oceans and serve as the most active interface between land and ocean systems (Syvitski et al., 2005). A portion of riverine sediments undergo multiple deposition-resuspension-transportation-redeposition processes under the combined action of estuarine dynamics and boundary conditions. These sedimentary particles help shape the aquatic morphology while carrying various pollutants and nutrients (Wang et al., 2015; Zhang et al., 2007). Thus, particle dynamics play significant roles in sedimentological and geomorphological processes as well as biogeochemical cycles in estuaries. Estuary morphic evolution is not a purely natural process, as it is jointly controlled by natural influences including riverine discharge, tides, waves, catastrophic events, and

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Section: Introductionmentioning

confidence: 99%

Particle Dynamics in a Managed Navigation Channel Under Different Tidal Conditions as Determined Using Multiple Radionuclide Tracers

et al. 2021

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“…is information can be processed and developed for the assessment and risk management of historic buildings [2][3][4]. Previous research has reported the application of the terrestrial laser scanner in engineering, architecture, and various other fields, such as prototyping [5], geomorphology [6], and characterization of slope instability [7]. In terms of the conservation of historical buildings, surveying based on TLS technology has various applications, such as roof deformation analysis [8], deformation monitoring of structures [9][10][11], geometric anomalies analysis [12,13], and leaning angle analysis [14].…”

Section: Introductionmentioning

confidence: 99%

An Alternative Method for Long‐Term Monitoring of Thai Historic Pagodas Based on Terrestrial Laser Scanning Data: A Case Study of Wat Krachee in Ayutthaya

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Sairuamyat

et al. 2021

Advances in Civil Engineering

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This article presents an alternative method for the long-term monitoring of heritage pagodas in Thailand. In this method, terrestrial laser scanning (TLS) is used in combination with permanent survey markers. The Wat (temple) Krachee in the Ayutthaya Province of Thailand was chosen as a case study. This temple has several fantastic elements, including an inverted bell-shaped pagoda, two intertwined trees growing within it, and a chamber inside the pagoda. The preservation team working on the pagoda encountered a challenging problem and faced a decision to trim or not to trim the tree since it has a long-term effect on the pagoda’s structural stability. A high-accuracy terrestrial laser scanner was used to collect three-dimensional point cloud data. Permanent survey markers were constructed in 2018 to be used in long-term monitoring. The 3D surveying of the temple and the monitoring of the pagoda were carried out in five sessions during a period ending in 2020. A point cloud data analysis was performed to obtain the current dimensions, a displacement analysis, and the pagoda leaning angle. The results revealed that the terrestrial laser scanner is a high-performance piece of equipment offering efficient evaluation and long-term monitoring. However, in this study, permanent survey markers were also required as a benchmark for constraining each monitoring session. The 3D point cloud models could be matched with the assumption model elements to evaluate the damaged shape and to determine the original form. The significant elements of an inverted bell-shaped pagoda were investigated. Trimming the tree was found to cause the leaning angle of the pagoda to decrease. An equation was developed for predicting the leaning angle of the Wat Krachee pagoda for preservation and restoration planning in the future. From the results of this study, it is recommended that periodic monitoring should continue in order to preserve Thai pagodas in their original forms.

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“…Topographic surveying techniques have seen a great technological evolution in recent decades. The appearance of massive data capture techniques has raised countless applications in very diverse disciplines, such as geomorphology [1], volcanology [2], prototyping [3], construction materials [4], and also cultural heritage [5], both architectural and archaeological. In these areas, we find numerous works based on surveys carried out mainly with a terrestrial laser scanner (TLS) [6,7], digital photogrammetry [8,9], or a combination of both [10,11].…”

Section: Introductionmentioning

confidence: 99%

Terrestrial Laser Scanner for the Formal Assessment of a Roman-Medieval Structure—The Cloister of the Cathedral of Tarragona (Spain)

et al. 2020

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The use of massive data capture techniques in architectural heritage has enhanced the development of new methodologies that have an important impact on their conservation and understanding. The research proposes the study of formal anomalies in the cloister of the Cathedral of Tarragona (c. 12th century). It is a relevant Gothic construction in Catalonia, with the special singularity that part of its structure is raised over an important pre-existing Roman wall. The investigation is based on a point cloud obtained with a terrestrial laser scanner (TLS) and the systematization of the 3D analysis methodology of the point cloud through different reference shapes. In general terms, the construction is in good condition, so the discrepancies between real construction and the shapes of reference are small, with some exceptions. Nevertheless, the different approximations used allowed us to identify some relevant features, such as the variability of the form of rib vaults, and the influence of the criteria used in the definition and location of reference forms.

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Application of terrestrial laser scanner on tidal flat morphology at a typhoon event timescale

Cited by 58 publications

References 66 publications

Particle Dynamics in a Managed Navigation Channel Under Different Tidal Conditions as Determined Using Multiple Radionuclide Tracers

Particle Dynamics in a Managed Navigation Channel Under Different Tidal Conditions as Determined Using Multiple Radionuclide Tracers

An Alternative Method for Long‐Term Monitoring of Thai Historic Pagodas Based on Terrestrial Laser Scanning Data: A Case Study of Wat Krachee in Ayutthaya

Terrestrial Laser Scanner for the Formal Assessment of a Roman-Medieval Structure—The Cloister of the Cathedral of Tarragona (Spain)

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