Comprehensive landslide susceptibility map of Central Asia

<p>Central Asia is an area characterized by complex tectonics and active deformation; the related seismic activity controls the earthquake hazard level that, due to the occurrence of secondary and tertiary effects, also has direct implications for the hazard related to mass movements such as...

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Main Authors: A. Rosi, W. Frodella, N. Nocentini, F. Caleca, H. B. Havenith, A. Strom, M. Saidov, G. A. Bimurzaev, V. Tofani
Format: Article
Language:English
Published: Copernicus Publications 2023-06-01
Series:Natural Hazards and Earth System Sciences
Online Access:https://nhess.copernicus.org/articles/23/2229/2023/nhess-23-2229-2023.pdf
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author A. Rosi
A. Rosi
W. Frodella
W. Frodella
N. Nocentini
N. Nocentini
F. Caleca
F. Caleca
H. B. Havenith
A. Strom
A. Strom
M. Saidov
G. A. Bimurzaev
V. Tofani
V. Tofani
author_facet A. Rosi
A. Rosi
W. Frodella
W. Frodella
N. Nocentini
N. Nocentini
F. Caleca
F. Caleca
H. B. Havenith
A. Strom
A. Strom
M. Saidov
G. A. Bimurzaev
V. Tofani
V. Tofani
author_sort A. Rosi
collection DOAJ
description <p>Central Asia is an area characterized by complex tectonics and active deformation; the related seismic activity controls the earthquake hazard level that, due to the occurrence of secondary and tertiary effects, also has direct implications for the hazard related to mass movements such as landslides, which are responsible for an extensive number of casualties every year. Climatically, this region is characterized by strong rainfall gradient contrasts due to the diversity of climate and vegetation zones. The region is drained by large, partly snow- and glacier-fed rivers that cross or terminate in arid forelands; therefore, it is also affected by a significant river flood hazard, mainly in spring and summer seasons. The challenge posed by the combination of different hazards can only be tackled by considering a multi-hazard approach harmonized among the different countries, in agreement with the requirements of the Sendai Framework for Disaster Risk Reduction. This work was carried out within the framework of the Strengthening Financial Resilience and Accelerating Risk Reduction in Central Asia (SFRARR) project as part of a multi-hazard approach and is focused on the first landslide susceptibility analysis at a regional scale for Central Asia. To this aim the most detailed landslide inventories, covering both national and transboundary territories, were implemented in a random forest model, together with several independent variables. The proposed approach represents an innovation in terms of resolution (from 30 to 70 m) and extension of the analyzed area with respect to previous regional landslide susceptibility and hazard zonation models applied in Central Asia. The final aim was to provide a useful tool for land use planning and risk reduction strategies for landslide scientists, practitioners, and administrators.</p>
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spelling doaj.art-1e6e97eadbcc4e6d8c87e45ebe4f6af92023-06-21T09:38:09ZengCopernicus PublicationsNatural Hazards and Earth System Sciences1561-86331684-99812023-06-01232229225010.5194/nhess-23-2229-2023Comprehensive landslide susceptibility map of Central AsiaA. Rosi0A. Rosi1W. Frodella2W. Frodella3N. Nocentini4N. Nocentini5F. Caleca6F. Caleca7H. B. Havenith8A. Strom9A. Strom10M. Saidov11G. A. Bimurzaev12V. Tofani13V. Tofani14Department of Geosciences, University of Padua, Via G. Gradenigo 6, 35131 Padua, ItalyUNESCO Chair on the Prevention and Sustainable Management of Geo-Hydrological Hazards, University of Florence, Largo Fermi 2, 50125 Florence, ItalyUNESCO Chair on the Prevention and Sustainable Management of Geo-Hydrological Hazards, University of Florence, Largo Fermi 2, 50125 Florence, ItalyDepartment of Earth Sciences, University of Florence, via G. la Pira 4, 50121 Florence, ItalyUNESCO Chair on the Prevention and Sustainable Management of Geo-Hydrological Hazards, University of Florence, Largo Fermi 2, 50125 Florence, ItalyDepartment of Earth Sciences, University of Florence, via G. la Pira 4, 50121 Florence, ItalyUNESCO Chair on the Prevention and Sustainable Management of Geo-Hydrological Hazards, University of Florence, Largo Fermi 2, 50125 Florence, ItalyDepartment of Earth Sciences, University of Florence, via G. la Pira 4, 50121 Florence, ItalyDepartment of Geology, University of Liège, 4000 Liège, BelgiumGeodynamics Research Center LLC, 125008 Moscow, Russian FederationGeodynamics Research Center – branch of JSC “Hydroproject Institute”, 125993 Moscow, Russian FederationInstitute of Water Problems, Hydropower, Engineering and Ecology of Tajikistan (IWPHE), 734063 Dushanbe, Tajikistan​​​​​​​State Service of the Republic of Uzbekistan for Geohazards Monitoring, 100074 Tashkent, UzbekistanUNESCO Chair on the Prevention and Sustainable Management of Geo-Hydrological Hazards, University of Florence, Largo Fermi 2, 50125 Florence, ItalyDepartment of Earth Sciences, University of Florence, via G. la Pira 4, 50121 Florence, Italy<p>Central Asia is an area characterized by complex tectonics and active deformation; the related seismic activity controls the earthquake hazard level that, due to the occurrence of secondary and tertiary effects, also has direct implications for the hazard related to mass movements such as landslides, which are responsible for an extensive number of casualties every year. Climatically, this region is characterized by strong rainfall gradient contrasts due to the diversity of climate and vegetation zones. The region is drained by large, partly snow- and glacier-fed rivers that cross or terminate in arid forelands; therefore, it is also affected by a significant river flood hazard, mainly in spring and summer seasons. The challenge posed by the combination of different hazards can only be tackled by considering a multi-hazard approach harmonized among the different countries, in agreement with the requirements of the Sendai Framework for Disaster Risk Reduction. This work was carried out within the framework of the Strengthening Financial Resilience and Accelerating Risk Reduction in Central Asia (SFRARR) project as part of a multi-hazard approach and is focused on the first landslide susceptibility analysis at a regional scale for Central Asia. To this aim the most detailed landslide inventories, covering both national and transboundary territories, were implemented in a random forest model, together with several independent variables. The proposed approach represents an innovation in terms of resolution (from 30 to 70 m) and extension of the analyzed area with respect to previous regional landslide susceptibility and hazard zonation models applied in Central Asia. The final aim was to provide a useful tool for land use planning and risk reduction strategies for landslide scientists, practitioners, and administrators.</p>https://nhess.copernicus.org/articles/23/2229/2023/nhess-23-2229-2023.pdf
spellingShingle A. Rosi
A. Rosi
W. Frodella
W. Frodella
N. Nocentini
N. Nocentini
F. Caleca
F. Caleca
H. B. Havenith
A. Strom
A. Strom
M. Saidov
G. A. Bimurzaev
V. Tofani
V. Tofani
Comprehensive landslide susceptibility map of Central Asia
Natural Hazards and Earth System Sciences
title Comprehensive landslide susceptibility map of Central Asia
title_full Comprehensive landslide susceptibility map of Central Asia
title_fullStr Comprehensive landslide susceptibility map of Central Asia
title_full_unstemmed Comprehensive landslide susceptibility map of Central Asia
title_short Comprehensive landslide susceptibility map of Central Asia
title_sort comprehensive landslide susceptibility map of central asia
url https://nhess.copernicus.org/articles/23/2229/2023/nhess-23-2229-2023.pdf
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