The conservation of the Shahr-e-Zohak archaeological site (central Afghanistan): Geomorphological processes and ecosystem-based mitigation

Margottini, Claudio; Fidolini, Francesco; Iadanza, Carla; Trigila, Alessandro; Ubelmann, Yves

doi:10.1016/j.geomorph.2014.12.047

Cited by 17 publications

(9 citation statements)

References 20 publications

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“…In the literature, the standard approach, which implies a quadrotor for remote sensing, consists of 3D model reconstruction with a photogrammetric texture. In [18], a new topography of an archaeological site was produced using drone-derived 3D photogrammetry combined with GPS data. A 3D model with a photogrammetric texture is provided.…”

Section: Resultsmentioning

confidence: 99%

A Shape-Adjusted Tridimensional Reconstruction of Cultural Heritage Artifacts Using a Miniature Quadrotor

et al. 2016

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Abstract:The innovative automated 3D modeling procedure presented here was used to reconstruct a Cultural Heritage (CH) object by means of an unmanned aerial vehicle. Using a motion capture system, a small low-cost quadrotor equipped with a miniature low-resolution Raspberry Pi camera module was accurately controlled in the closed loop mode and made to follow a trajectory around the artifact. A two-stage process ensured the accuracy of the 3D reconstruction process. The images taken during the first circular trajectory were used to draw the artifact's shape. The second trajectory was smartly and autonomously adjusted to match the artifact's shape, then it provides new pictures taken close to the artifact and, thus, greatly improves the final 3D reconstruction in terms of the completeness, accuracy and quickness, in particular where the artifact's shape is complex. The results obtained here using close-range photogrammetric methods show that the process of automated 3D model reconstruction based on a robotized quadrotor using a motion capture system is a realistic approach, which could provide a suitable new digital conservation tool in the cultural heritage field.

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Section: Resultsmentioning

confidence: 99%

A Shape-Adjusted Tridimensional Reconstruction of Cultural Heritage Artifacts Using a Miniature Quadrotor

et al. 2016

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“…The complexity of the urbanization of the study area did not allow for an accurate map of all the hydrographic flow-paths; therefore, the drainage network was automatically mapped on the LiDAR data using the ArcMap 10.4.1 Hydrology Tools package (Flow Direction, Accumulation and Strem Order functions) (e.g. Frodella, Morelli, & Pazzi, 2017b;Margottini et al, 2015a;Strahler, 1957). The geological map legend was arranged based on the granite weathering products classification of Lee and De Freitas (1989) and Dewandel, Lachassagne, Wyns, Maréchal, and Krishnamurthy (2006).…”

Section: Methodsmentioning

confidence: 99%

“…In this framework, the integration with remote sensing technologies can overcome the limitations of a field approach, by allowing a complete coverage of the analyzed phenomena over wide and inaccessible areas reducing costs and ensuring the safety of the field operators (Bardi et al, 2017;Ciampalini et al, 2019;Del Soldato et al, 2018;Frodella, Gigli, Morelli, Lombardi, & Casagli, 2017a;Gigli et al, 2014). The protection of Cultural Heritage from instability phenomena requires a specific interdisciplinary approach, which should be planned considering the geological and geomorphological characteristics of the site, as well as the typology of the related hazard (Margottini, Fidolini, Iadanza, Trigila, & Ubelmann, 2015a, 2015bNolesini, Frodella, Bianchini, & Casagli, 2016;Pastonchi et al, 2018). The rapid urban development of Antananarivo, together with the lack of a proper urban planning, due to political and governance issues, have caused several environmental problems, such as intense deforestation and quarrying, unauthorized slope cutting and terracing for the construction of illegal hovels, moreover, there is a general lack of proper drainage and sewer systems.…”

Section: Introductionmentioning

confidence: 99%

Hydrography and geomorphology of Antananarivo High City (Madagascar)

et al. 2020

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The city of Antananarivo is located in the central highlands of Madagascar, and is the largest urban center of the island. Considering the frequent heavy cyclonic rains frequently affecting the area, its geomorphological context is particularly prone to geo-hydrological hazards, such as landslides and flash floods, as recently proved during the disastrous events of the winters of 2015 and 2018. Field data and high-resolution remote sensing data interpretation (DEMs and satellite orthophotos) were combined in order to produce detailed hydrographic and geomorphological maps. The aim was to understand the processes acting in the Analamanga hill area, with special regards to the effect of human activity in modeling the natural landforms and exacerbating the geo-hydrological hazards. The obtained maps will provide management-planning tools to be used as a first step towards a risk reduction strategy in the Antananarivo historical urban center.

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“…In developing countries Cultural Heritage is often at risk due to natural disasters (fires, earthquakes, landslides, flooding, tropical storms) (Taboroff 2000;Margottini et al 2015). Damages can also arise from the fragility of the structures or materials, destructive sabotage, war and incorrect urban planning (UNESCO 2010;Wang 2015).…”

Section: Introductionmentioning

confidence: 99%

Rapid assessment of geo-hydrological hazards in Antananarivo (Madagascar) historical centre for damage prevention

Ciampalini

Frodella

Margottini

2019

Geomatics, Natural Hazards and Risk

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The historical centre of Antananarivo represents one of the most important cultural heritage sites in Madagascar. During 2015, the whole city area was severely affected by geo-hydrological hazards due to cyclonic rain, resulting in severe flooding, and in widespread shallow landslides along the hillslopes. This event proved the vulnerability to geo-hydrological risk of the Upper town's historical buildings. In October 2017, a geo-hydrological hazard mapping was performed in the Upper Town by combining field surveys, remote sensing and geomatic data analysis in a GIS environment. This provided detailed products such as a geological-geomorphological map, a map of the hydrographic network and of the creek basins, and a geodatabase to be used for detecting areas prone to erosion and geo-hydrological hazards. The final aim was to understand the geological, geomorphological and hydrographic features of the Upper Town, in order locate the more critical areas and to recommend priority works to be carried out, as a first step toward a risk management strategy and a conservation/valorization plan for building the resilience of the site. The results highlighted that a Cultural Heritage site protection strategy can be planned also in case of limited data, which is a frequent condition in developing countries.

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The conservation of the Shahr-e-Zohak archaeological site (central Afghanistan): Geomorphological processes and ecosystem-based mitigation

Cited by 17 publications

References 20 publications

A Shape-Adjusted Tridimensional Reconstruction of Cultural Heritage Artifacts Using a Miniature Quadrotor

A Shape-Adjusted Tridimensional Reconstruction of Cultural Heritage Artifacts Using a Miniature Quadrotor

Hydrography and geomorphology of Antananarivo High City (Madagascar)

Rapid assessment of geo-hydrological hazards in Antananarivo (Madagascar) historical centre for damage prevention

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