Landslide susceptibility assessment at the basin scale for rainfall- and earthquake- triggered shallow slides
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10451/41275 |
Resumo: | The hydrographic basin of Ribeira Grande (S. Miguel Island, Azores) has a set of characteristics that enhance the occurrence of shallow slides that have been triggered by rainfall and earthquakes. Two landslide inventories were built according to the landslide triggers: Landslide Inventory 2 (LI 2), which includes 174 earthquake-triggered shallow slides occurred in 2005; and Landslide Inventory 1 (LI 1), which includes 442 shallow slides triggered by rainfall in several periods from 2005 to 2016. Both landslide inventories were characterized and compared from the morphometric point of view and were used individually to produce susceptibility models to failure using a simple bivariate state-of-the-art statistical method (the Information Value). The landslide susceptibility Models were validated using success rates, prediction rates, and Kappa statistics. The results show that shallow slides triggered by rainfall and earthquakes in the study area have di erent morphometric characteristics. It was verified that models produced with LI 1 are very e ective in predicting the spatial location of LI 2, but the same does not happen in the inverse situation. Finally, landslide susceptibility models developed with LI 1 and LI 2 for the upper sector of the hydrographic basin (where most landslides occurred), and latter applied to the complete watershed, present more modest predictive results but are more reliable to characterize the landslide susceptibility in the study area. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
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Landslide susceptibility assessment at the basin scale for rainfall- and earthquake- triggered shallow slidesShallow slidesRainfall-triggeringEarthquake-triggeringModellingSusceptibilityThe hydrographic basin of Ribeira Grande (S. Miguel Island, Azores) has a set of characteristics that enhance the occurrence of shallow slides that have been triggered by rainfall and earthquakes. Two landslide inventories were built according to the landslide triggers: Landslide Inventory 2 (LI 2), which includes 174 earthquake-triggered shallow slides occurred in 2005; and Landslide Inventory 1 (LI 1), which includes 442 shallow slides triggered by rainfall in several periods from 2005 to 2016. Both landslide inventories were characterized and compared from the morphometric point of view and were used individually to produce susceptibility models to failure using a simple bivariate state-of-the-art statistical method (the Information Value). The landslide susceptibility Models were validated using success rates, prediction rates, and Kappa statistics. The results show that shallow slides triggered by rainfall and earthquakes in the study area have di erent morphometric characteristics. It was verified that models produced with LI 1 are very e ective in predicting the spatial location of LI 2, but the same does not happen in the inverse situation. Finally, landslide susceptibility models developed with LI 1 and LI 2 for the upper sector of the hydrographic basin (where most landslides occurred), and latter applied to the complete watershed, present more modest predictive results but are more reliable to characterize the landslide susceptibility in the study area.MDPIRepositório da Universidade de LisboaGordo, CristinaZêzere, JoséMarques, Rui2020-01-20T12:27:40Z20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10451/41275engGordo, C., Zêzere, J.L., Marques, R. (2019). Landslide susceptibility assessment at the basin scale for rainfall- and earthquake- triggered shallow slides. Geosciences, 9(6), 268; https://doi.org/10.3390/geosciences90602682076-326310.3390/geosciences9060268info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-11-20T17:55:27Zoai:repositorio.ul.pt:10451/41275Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-11-20T17:55:27Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Landslide susceptibility assessment at the basin scale for rainfall- and earthquake- triggered shallow slides |
title |
Landslide susceptibility assessment at the basin scale for rainfall- and earthquake- triggered shallow slides |
spellingShingle |
Landslide susceptibility assessment at the basin scale for rainfall- and earthquake- triggered shallow slides Gordo, Cristina Shallow slides Rainfall-triggering Earthquake-triggering Modelling Susceptibility |
title_short |
Landslide susceptibility assessment at the basin scale for rainfall- and earthquake- triggered shallow slides |
title_full |
Landslide susceptibility assessment at the basin scale for rainfall- and earthquake- triggered shallow slides |
title_fullStr |
Landslide susceptibility assessment at the basin scale for rainfall- and earthquake- triggered shallow slides |
title_full_unstemmed |
Landslide susceptibility assessment at the basin scale for rainfall- and earthquake- triggered shallow slides |
title_sort |
Landslide susceptibility assessment at the basin scale for rainfall- and earthquake- triggered shallow slides |
author |
Gordo, Cristina |
author_facet |
Gordo, Cristina Zêzere, José Marques, Rui |
author_role |
author |
author2 |
Zêzere, José Marques, Rui |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Gordo, Cristina Zêzere, José Marques, Rui |
dc.subject.por.fl_str_mv |
Shallow slides Rainfall-triggering Earthquake-triggering Modelling Susceptibility |
topic |
Shallow slides Rainfall-triggering Earthquake-triggering Modelling Susceptibility |
description |
The hydrographic basin of Ribeira Grande (S. Miguel Island, Azores) has a set of characteristics that enhance the occurrence of shallow slides that have been triggered by rainfall and earthquakes. Two landslide inventories were built according to the landslide triggers: Landslide Inventory 2 (LI 2), which includes 174 earthquake-triggered shallow slides occurred in 2005; and Landslide Inventory 1 (LI 1), which includes 442 shallow slides triggered by rainfall in several periods from 2005 to 2016. Both landslide inventories were characterized and compared from the morphometric point of view and were used individually to produce susceptibility models to failure using a simple bivariate state-of-the-art statistical method (the Information Value). The landslide susceptibility Models were validated using success rates, prediction rates, and Kappa statistics. The results show that shallow slides triggered by rainfall and earthquakes in the study area have di erent morphometric characteristics. It was verified that models produced with LI 1 are very e ective in predicting the spatial location of LI 2, but the same does not happen in the inverse situation. Finally, landslide susceptibility models developed with LI 1 and LI 2 for the upper sector of the hydrographic basin (where most landslides occurred), and latter applied to the complete watershed, present more modest predictive results but are more reliable to characterize the landslide susceptibility in the study area. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 2019-01-01T00:00:00Z 2020-01-20T12:27:40Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10451/41275 |
url |
http://hdl.handle.net/10451/41275 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Gordo, C., Zêzere, J.L., Marques, R. (2019). Landslide susceptibility assessment at the basin scale for rainfall- and earthquake- triggered shallow slides. Geosciences, 9(6), 268; https://doi.org/10.3390/geosciences9060268 2076-3263 10.3390/geosciences9060268 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
mluisa.alvim@gmail.com |
_version_ |
1817549074641977344 |