Occurrences of Deep-Seated Creeping Landslides in Accordance with Hydrological Water Storage in Catchments

Rainfall is one of the most important triggers of both shallow debris flows and deep-seated landslides. The triggering mechanism involves the process of water infiltration into the failure zone. For deep-seated landslides, the deeper and more extensive failure surfaces delay the effect of the proces...

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Autores principales:	Chih-Yu Kuo, Shen-En Lin, Rou-Fei Chen, Ya-Ju Hsu, Kuo-Jen Chang, Shin-Ping Lee, Rou-Ying Wu, Ching-Weei Lin, Ya-Hsin Chan
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	deep-seated creeping landslide GPS-recorded displacement tank model water storage index landslide initiation Science Q
Acceso en línea:	https://doaj.org/article/987bac7926e7457e9e8f3fe7fb48845a
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id	oai:doaj.org-article:987bac7926e7457e9e8f3fe7fb48845a
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spelling	oai:doaj.org-article:987bac7926e7457e9e8f3fe7fb48845a2021-11-16T07:35:07ZOccurrences of Deep-Seated Creeping Landslides in Accordance with Hydrological Water Storage in Catchments2296-646310.3389/feart.2021.743669https://doaj.org/article/987bac7926e7457e9e8f3fe7fb48845a2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/feart.2021.743669/fullhttps://doaj.org/toc/2296-6463Rainfall is one of the most important triggers of both shallow debris flows and deep-seated landslides. The triggering mechanism involves the process of water infiltration into the failure zone. For deep-seated landslides, the deeper and more extensive failure surfaces delay the effect of the process and thus delay landslide initiations. The delay is difficult to assess, especially if the sites only have scarce or insufficient monitoring data. Under these circumstances, we illustrate that the occurrences of landslides can be estimated by their correlations with the phenomenological water storage index (WSI) of a given catchment. In the present study, a total of five deep-seated landslides in TienChih (4) and SiangYang (1) are investigated. The displacements of the landslides were recorded by global positioning system (GPS) and the WSI was modelled using the tank model. The result demonstrates that the WSI correlates closer in time to the landslide motion than the rainfall, and the WSI thresholds for the landslides are inferred. Thus, this technique can be applied as an associated method to evaluate landslide initiation.Chih-Yu KuoChih-Yu KuoShen-En LinRou-Fei ChenYa-Ju HsuKuo-Jen ChangShin-Ping LeeRou-Ying WuChing-Weei LinYa-Hsin ChanFrontiers Media S.A.articledeep-seated creeping landslideGPS-recorded displacementtank modelwater storage indexlandslide initiationScienceQENFrontiers in Earth Science, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	deep-seated creeping landslide GPS-recorded displacement tank model water storage index landslide initiation Science Q
spellingShingle	deep-seated creeping landslide GPS-recorded displacement tank model water storage index landslide initiation Science Q Chih-Yu Kuo Chih-Yu Kuo Shen-En Lin Rou-Fei Chen Ya-Ju Hsu Kuo-Jen Chang Shin-Ping Lee Rou-Ying Wu Ching-Weei Lin Ya-Hsin Chan Occurrences of Deep-Seated Creeping Landslides in Accordance with Hydrological Water Storage in Catchments
description	Rainfall is one of the most important triggers of both shallow debris flows and deep-seated landslides. The triggering mechanism involves the process of water infiltration into the failure zone. For deep-seated landslides, the deeper and more extensive failure surfaces delay the effect of the process and thus delay landslide initiations. The delay is difficult to assess, especially if the sites only have scarce or insufficient monitoring data. Under these circumstances, we illustrate that the occurrences of landslides can be estimated by their correlations with the phenomenological water storage index (WSI) of a given catchment. In the present study, a total of five deep-seated landslides in TienChih (4) and SiangYang (1) are investigated. The displacements of the landslides were recorded by global positioning system (GPS) and the WSI was modelled using the tank model. The result demonstrates that the WSI correlates closer in time to the landslide motion than the rainfall, and the WSI thresholds for the landslides are inferred. Thus, this technique can be applied as an associated method to evaluate landslide initiation.
format	article
author	Chih-Yu Kuo Chih-Yu Kuo Shen-En Lin Rou-Fei Chen Ya-Ju Hsu Kuo-Jen Chang Shin-Ping Lee Rou-Ying Wu Ching-Weei Lin Ya-Hsin Chan
author_facet	Chih-Yu Kuo Chih-Yu Kuo Shen-En Lin Rou-Fei Chen Ya-Ju Hsu Kuo-Jen Chang Shin-Ping Lee Rou-Ying Wu Ching-Weei Lin Ya-Hsin Chan
author_sort	Chih-Yu Kuo
title	Occurrences of Deep-Seated Creeping Landslides in Accordance with Hydrological Water Storage in Catchments
title_short	Occurrences of Deep-Seated Creeping Landslides in Accordance with Hydrological Water Storage in Catchments
title_full	Occurrences of Deep-Seated Creeping Landslides in Accordance with Hydrological Water Storage in Catchments
title_fullStr	Occurrences of Deep-Seated Creeping Landslides in Accordance with Hydrological Water Storage in Catchments
title_full_unstemmed	Occurrences of Deep-Seated Creeping Landslides in Accordance with Hydrological Water Storage in Catchments
title_sort	occurrences of deep-seated creeping landslides in accordance with hydrological water storage in catchments
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/987bac7926e7457e9e8f3fe7fb48845a
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Occurrences of Deep-Seated Creeping Landslides in Accordance with Hydrological Water Storage in Catchments

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