Publicação
Identification of hazardous zones combining cliff retreat rates with landslide susceptibility assessment
| Resumo: | Landslides are one of the main natural hazards which affect the coastal cliffs of Lourinhã council, located in Central Portugal. In this work, a methodology for hazard evaluation on coastal cliffs is presented, which combines the calculation of cliff retreat rates with landslide susceptibility assessment essential because landslide usually do not affect the cliff top. A landslide inventory was produced by aerial photo interpretation and a systematic field survey. The entire coastal stretch was split into 50m-long areas, resulting in 261 terrain mapping units. For each unit, 9 landslide predisposing factors were derived and classified. A predictive susceptibility model was developed using the Information Value method and the respective degree of fit was assessed using standard Receiver Operator Curves (ROC). Cliff retreat rates were calculated for a 60-year period using the ESRI´s Digital Shoreline Analysis System ArcGIS extension on a set of aerial photographs (which were manually geo-referenced and ortho-rectified) and a digital orthophotomap. Subsequently, predicted susceptibility data were integrated with the computed cliff retreat rates in a hazard matrix in order to create a map of the coastal cliff hazard. Cliff retreat rates ranged from 0.013 to 0.130m/yr and landslide susceptibility ranged from very high (4.2% of terrain unit) to low (0.8 % of terrain units). Approximately half of the study rocky coast is identified as being in a high hazard class. Thus, it is essential that hazard zones are considered for land use planning and management in order to reduce the probability of future incidents related to slope instability. |
|---|---|
| Autores principais: | Epifânio, Bruno |
| Outros Autores: | Zêzere, José; Neves, Mário |
| Assunto: | Rocky coasts coastal erosion cliff recession landslides susceptibility Lourinhã (Portugal) |
| Ano: | 2013 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório da Universidade de Lisboa |
| _version_ | 1865920776611299329 |
|---|---|
| author | Epifânio, Bruno |
| author2 | Zêzere, José Neves, Mário |
| author2_role | author author |
| author_facet | Epifânio, Bruno Epifânio, Bruno Zêzere, José Neves, Mário Zêzere, José Neves, Mário |
| author_role | author |
| contributor_name_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| country_str | PT |
| creators_json_str | [{\"Person.name\":\"Epifânio, Bruno\"},{\"Person.name\":\"Zêzere, José\",\"Person.identifier.orcid\":\"0000-0002-3953-673X\"},{\"Person.name\":\"Neves, Mário\",\"Person.identifier.orcid\":\"0000-0002-6001-4848\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| datacite.creators.creator.creatorName.fl_str_mv | Epifânio, Bruno Zêzere, José Neves, Mário |
| datacite.date.Accepted.fl_str_mv | 2013-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2017-07-14T12:43:08Z |
| datacite.date.embargoed.fl_str_mv | 2017-07-14T12:43:08Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| datacite.subjects.subject.fl_str_mv | Rocky coasts coastal erosion cliff recession landslides susceptibility Lourinhã (Portugal) |
| datacite.titles.title.fl_str_mv | Identification of hazardous zones combining cliff retreat rates with landslide susceptibility assessment |
| dc.contributor.none.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| dc.creator.none.fl_str_mv | Epifânio, Bruno Zêzere, José Neves, Mário |
| dc.date.Accepted.fl_str_mv | 2013-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2017-07-14T12:43:08Z |
| dc.date.embargoed.fl_str_mv | 2017-07-14T12:43:08Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10451/28365 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Coastal Education and Research Foundation |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| dc.subject.none.fl_str_mv | Rocky coasts coastal erosion cliff recession landslides susceptibility Lourinhã (Portugal) |
| dc.title.fl_str_mv | Identification of hazardous zones combining cliff retreat rates with landslide susceptibility assessment |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Landslides are one of the main natural hazards which affect the coastal cliffs of Lourinhã council, located in Central Portugal. In this work, a methodology for hazard evaluation on coastal cliffs is presented, which combines the calculation of cliff retreat rates with landslide susceptibility assessment essential because landslide usually do not affect the cliff top. A landslide inventory was produced by aerial photo interpretation and a systematic field survey. The entire coastal stretch was split into 50m-long areas, resulting in 261 terrain mapping units. For each unit, 9 landslide predisposing factors were derived and classified. A predictive susceptibility model was developed using the Information Value method and the respective degree of fit was assessed using standard Receiver Operator Curves (ROC). Cliff retreat rates were calculated for a 60-year period using the ESRI´s Digital Shoreline Analysis System ArcGIS extension on a set of aerial photographs (which were manually geo-referenced and ortho-rectified) and a digital orthophotomap. Subsequently, predicted susceptibility data were integrated with the computed cliff retreat rates in a hazard matrix in order to create a map of the coastal cliff hazard. Cliff retreat rates ranged from 0.013 to 0.130m/yr and landslide susceptibility ranged from very high (4.2% of terrain unit) to low (0.8 % of terrain units). Approximately half of the study rocky coast is identified as being in a high hazard class. Thus, it is essential that hazard zones are considered for land use planning and management in order to reduce the probability of future incidents related to slope instability. |
| dirty | 0 |
| eu_rights_str_mv | restrictedAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorio.ulisboa.pt/bitstreams/1dc71f12-a863-4a49-ac63-fb7942e42bd6/download |
| id | ul_22c8bd7ccc80bb1069a9ad010b6bdc4c |
| identifier.url.fl_str_mv | http://hdl.handle.net/10451/28365 |
| instacron_str | ul |
| institution | Universidade de Lisboa |
| instname_str | Universidade de Lisboa |
| language | eng |
| network_acronym_str | ul |
| network_name_str | Repositório da Universidade de Lisboa |
| oai_identifier_str | oai:repositorio.ulisboa.pt:10451/28365 |
| organization_str_mv | urn:organizationAcronym:ul |
| person_str_mv | Epifânio, Bruno Zêzere, José Zêzere, José https://www.ciencia-id.pt/511D-EE6B-47E3 511D-EE6B-47E3 http://orcid.org/0000-0002-3953-673X 0000-0002-3953-673X Neves, Mário Neves, Mário https://www.ciencia-id.pt/C318-7F45-8859 C318-7F45-8859 http://orcid.org/0000-0002-6001-4848 0000-0002-6001-4848 |
| publishDate | 2013 |
| publisher.none.fl_str_mv | Coastal Education and Research Foundation |
| reponame_str | Repositório da Universidade de Lisboa |
| repository_id_str | urn:repositoryAcronym:ul |
| service_str_mv | urn:repositoryAcronym:ul |
| spelling | engCoastal Education and Research Foundationpt_PTLandslides are one of the main natural hazards which affect the coastal cliffs of Lourinhã council, located in Central Portugal. In this work, a methodology for hazard evaluation on coastal cliffs is presented, which combines the calculation of cliff retreat rates with landslide susceptibility assessment essential because landslide usually do not affect the cliff top. A landslide inventory was produced by aerial photo interpretation and a systematic field survey. The entire coastal stretch was split into 50m-long areas, resulting in 261 terrain mapping units. For each unit, 9 landslide predisposing factors were derived and classified. A predictive susceptibility model was developed using the Information Value method and the respective degree of fit was assessed using standard Receiver Operator Curves (ROC). Cliff retreat rates were calculated for a 60-year period using the ESRI´s Digital Shoreline Analysis System ArcGIS extension on a set of aerial photographs (which were manually geo-referenced and ortho-rectified) and a digital orthophotomap. Subsequently, predicted susceptibility data were integrated with the computed cliff retreat rates in a hazard matrix in order to create a map of the coastal cliff hazard. Cliff retreat rates ranged from 0.013 to 0.130m/yr and landslide susceptibility ranged from very high (4.2% of terrain unit) to low (0.8 % of terrain units). Approximately half of the study rocky coast is identified as being in a high hazard class. Thus, it is essential that hazard zones are considered for land use planning and management in order to reduce the probability of future incidents related to slope instability.application/pdfpt_PTIdentification of hazardous zones combining cliff retreat rates with landslide susceptibility assessmentEpifânio, BrunoPersonalZêzere, JoséDSpacehttp://dspace.org/items/a49d5ad5-533a-4973-b8c6-a4f201b1cf62DSpacehttp://dspace.org/items/a49d5ad5-533a-4973-b8c6-a4f201b1cf62ZêzereJosé LuísCiência IDhttps://www.ciencia-id.pt511D-EE6B-47E3ORCIDhttp://orcid.org0000-0002-3953-673XScopus Author IDhttps://www.scopus.com6507109389PersonalNeves, MárioDSpacehttp://dspace.org/items/83ebbfed-32a0-44b5-aec9-58b0613855dfDSpacehttp://dspace.org/items/83ebbfed-32a0-44b5-aec9-58b0613855dfNevesMárioCiência IDhttps://www.ciencia-id.ptC318-7F45-8859ORCIDhttp://orcid.org0000-0002-6001-4848Scopus Author IDhttps://www.scopus.com55812861300HostingInstitutionOrganizationalRepositório Científico de Acesso Aberto da ULisboae-mailmailto:repositorio@reitoria.ulisboa.ptrepositorio@reitoria.ulisboa.ptISSNIsPartOf0749-0208DOIIsPartOf10.2112/SI65-284.12017-07-14T12:43:08Z20132013-01-01T00:00:00ZHandlehttp://hdl.handle.net/10451/28365http://purl.org/coar/access_right/c_16ecrestricted accessRocky coastscoastal erosioncliff recessionlandslides susceptibilityLourinhã (Portugal)721710 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_16ecapplication/pdffulltexthttps://repositorio.ulisboa.pt/bitstreams/1dc71f12-a863-4a49-ac63-fb7942e42bd6/downloadJournal of Coastal Research65(sp2)16811686 |
| spellingShingle | Identification of hazardous zones combining cliff retreat rates with landslide susceptibility assessment Identification of hazardous zones combining cliff retreat rates with landslide susceptibility assessment Epifânio, Bruno Rocky coasts coastal erosion cliff recession landslides susceptibility Lourinhã (Portugal) Epifânio, Bruno Rocky coasts coastal erosion cliff recession landslides susceptibility Lourinhã (Portugal) |
| status | SINGLETON |
| subject.fl_str_mv | Rocky coasts coastal erosion cliff recession landslides susceptibility Lourinhã (Portugal) |
| title | Identification of hazardous zones combining cliff retreat rates with landslide susceptibility assessment |
| title_full | Identification of hazardous zones combining cliff retreat rates with landslide susceptibility assessment |
| title_fullStr | Identification of hazardous zones combining cliff retreat rates with landslide susceptibility assessment Identification of hazardous zones combining cliff retreat rates with landslide susceptibility assessment |
| title_full_unstemmed | Identification of hazardous zones combining cliff retreat rates with landslide susceptibility assessment Identification of hazardous zones combining cliff retreat rates with landslide susceptibility assessment |
| title_short | Identification of hazardous zones combining cliff retreat rates with landslide susceptibility assessment |
| title_sort | Identification of hazardous zones combining cliff retreat rates with landslide susceptibility assessment |
| topic | Rocky coasts coastal erosion cliff recession landslides susceptibility Lourinhã (Portugal) |
| topic_facet | Rocky coasts coastal erosion cliff recession landslides susceptibility Lourinhã (Portugal) |
| url | http://hdl.handle.net/10451/28365 |
| visible | 1 |