Hydrography and geomorphology of Antananarivo High City (Madagascar)

Frodella, William; Spizzichino, Daniele; Ciampalini, Andrea; Margottini, Claudio

doi:10.1080/17445647.2020.1721343

Cited by 13 publications

(3 citation statements)

References 33 publications

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“…The same applies to the publications about the High City of Antananarivo, which benefited from the cooperation between experts from different countries in the framework of the "Project for Enrollment of the High City of Antananarivo in the UNESCO World Heritage Site" of the UNESCO chair on Prevention and Sustainable Management of Geo-Hydrological Hazards [39,40,109]. In Latin America and the Caribbean, international cooperation under the framework of the International Consortium on Landslides and the International Programme on Landslides C101-1 resulted in the already mentioned case studies in the Inca citadel of Machu Picchu [110][111][112][113], involving Peruvian, Japanese, Czechoslovakian, and Italian experts [114].…”

Section: Discussionmentioning

confidence: 97%

“…Those early works took advantage of GIS applications to integrate geological and geomorphological information, aiming to investigate the mechanisms and causative factors of landslides in the Tharos, Capo San Marco, and San Giovanni di Sinis areas (Sardinia, Italy) that could represent risks to the preservation of Roman and Phoenician heritage sites. This fundamental role of the geomorphological approach is also exemplified by the geomorphological investigations by Frodella et al [39] in the High City of Antananarivo (Madagascar), a UNESCO WHL candidate site, which provided information for subsequent research deploying a multidisciplinary approach [40].…”

Section: Publications By Year Study Scope and Approach-based Categoriesmentioning

confidence: 89%

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Landslides and Cultural Heritage—A Review

Bonini,

Vieira,

Corrêa

et al. 2023

Heritage

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Cultural heritage sites can be affected by landslides, often causing damage to their integrity, value, and accessibility. Several studies worldwide were focused on the assessment of the potential threats that landslides can pose to the preservation of cultural heritage sites. This article aims to review landslide studies at cultural heritage sites worldwide, analyzing the publications’ temporal distribution, selected methods, geographical and climate contexts, and investigated landslide types. We analyzed a database of 331 publications from 2000 to 2023 in study areas distributed across 47 countries, compiled through systematic queries of the Web of Science and Scopus catalogs. The results show an increase in the number of publications from 2012 onwards, with most studies performing landslide susceptibility analyses on cultural heritage sites. The majority of the studies deployed a geomorphological approach address slope instability mechanisms that threaten site integrity, with a significant number of publications presenting model-based, multidisciplinary and engineering geological approaches. Europe, North America, and Asia and the Pacific concentrate the majority of studies, with Italy and China having the highest number of case studies. The threats to cultural heritage sites located in Latin America and the Caribbean, and Africa are the least studied. Block slides, earth slides, and rock falls are the most studied processes, with fewer studies dealing with other landslide types.

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Section: Discussionmentioning

confidence: 97%

Section: Publications By Year Study Scope and Approach-based Categoriesmentioning

confidence: 89%

Landslides and Cultural Heritage—A Review

Bonini,

Vieira,

Corrêa

et al. 2023

Heritage

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“…Hydrology and hydrogeology signi cantly affect landslide formation in the hilly areas (Kayastha et al, 2012). Many studies have looked at the importance and complexity of hydrogeology in landslide susceptibility evaluations (Frodella et al, 2021;Sujatha, 2021). The hydrogeology map of Son La province was obtained on a scale of 50,000 in 2020 from the Vietnamese Ministry of Natural Resources and Environment.…”

Section: Hydrogeologymentioning

confidence: 99%

Landslide susceptibility prediction mapping with advanced ensemble models: Son La province, Vietnam

Bui

Khuc

et al. 2022

Nat Hazards

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Landslides are a serious geohazard in many mountainous areas of Vietnam during the rainy season.They directly threaten human lives and properties every year. Landslide susceptibility maps are useful tools for risk mitigation, land-use planning, and early warning systems for local areas. It is necessary to update these maps continuously because of the complexity of landslide events. This fact requires further extending the approach techniques with practical implications. Therefore, this study aimed to develop landslide susceptibility prediction maps based on advanced Machine Learning (ML) techniques. Five state-of-art hybrid ML models were developed: Bagging -MLP, Dagging -MLP, Decorate -MLP, Rotation Forest -MLP, Random SubSpace -MLP with Multi-Layer Perceptron (MLP) as a base classi er. Sixteen causative factors were collected to build landslide susceptibility maps based on the relationship between historical landslide locations and speci c local geo-environmental conditions. The model performance was veri ed using various statistical indexes. Based on the Area Under ROC curve (AUC) analysis results of the testing dataset, the Rotation Forest -MLP model has the greatest predictive accuracy of AUC = 0.818. It is followed by the Decorate -MLP and Bagging -MLP (AUC=0.804), the Random SubSpace -MLP model (AUC=0.796), the Dagging -MLP (AUC=0.789), and the single MLP (AUC=0.698). The results of this study can be applied effectively to other mountainous regions to mitigate the risk of landslides.

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