Space-time analysis of the relationship between landslides occurrence, rainfall variability and ENSO in the Tropical Andean Mountain region in Colombia

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dc.contributor.affiliationVega, J., Civil engineering Program, School of engineering, Universidad de Medellín, Medellin, 050026, Colombia, Section of Remote Sensing and Geoinformatics, Department of Geodesy, GFZ German Research Centre for Geosciences, Potsdam, 14473, Germany
dc.contributor.affiliationBarco, J., Environmental engineering Program, School of engineering, Universidad de Medellín, Medellin, 050026, Colombia
dc.contributor.affiliationHidalgo, C., Civil engineering Program, School of engineering, Universidad de Medellín, Medellin, 050026, Colombia
dc.contributor.authorVega J
dc.contributor.authorBarco J
dc.contributor.authorHidalgo C.
dc.date.accessioned2024-07-31T21:07:05Z
dc.date.available2024-07-31T21:07:05Z
dc.date.issued2024
dc.descriptionAccording to studies by the Intergovernmental Panel on Climate Change (IPCC), tropical mountainous areas are experiencing increasingly unfavorable climatic conditions regarding geohazards due to a heightened occurrence of intense rainfall events. These climatic shifts contribute to heightened geological risks, notably an elevated frequency of landslides, exacerbating the challenges faced by these regions. There is an urgent need to understand and measure how rainfall variability affects geo-hydrological hazards, which remain difficult to determine and predict. The complex and non-linear space-time relationships and dynamics of rainfall, El Niño-Southern Oscillation (ENSO), and landslides in the Tropical Andean Mountain region in Colombia require an adequate analysis and understanding of their link in terms of its spatial and temporal component at different scales. By evaluation in annual, seasonal, and monthly scales, additional insights on the relationships using a wavelet spectral analysis and a space-time permutation scan statistics method using SaTScan™ are provided. In this study, a space-time and frequency analysis of landslides using a 42-year (1981–2022) rainfall and Multivariate ENSO Index v2.0 time series is presented. According to the results, landslides closely aligned with rainfall patterns, exhibiting a bimodal annual cycle. The ENSO added complexity, with La Niña years leading to more frequent landslides throughout the year and El Niño years showing concentrated occurrences in specific months. This study highlights the influence of rainfall patterns and antecedent rainfall on landslide occurrence, the impact of ENSO phases on rainfall and landslides, and the increasing trend of landslides in Colombia. © The Author(s) 2024.
dc.identifier.doi10.1007/s10346-024-02225-9
dc.identifier.instnameinstname:Universidad de Medellínspa
dc.identifier.issn1612510X
dc.identifier.reponamereponame:Repositorio Institucional Universidad de Medellínspa
dc.identifier.repourlrepourl:https://repository.udem.edu.co/
dc.identifier.urihttp://hdl.handle.net/11407/8466
dc.language.isoeng
dc.publisherSpringer Science and Business Media Deutschland GmbHspa
dc.publisher.facultyFacultad de Ingenieríasspa
dc.publisher.programIngeniería Ambientalspa
dc.publisher.programIngeniería Civilspa
dc.relation.isversionofhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85185947775&doi=10.1007%2fs10346-024-02225-9&partnerID=40&md5=3a0f8dba3dc1ea91968c7a232e7bb543
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dc.rights.accessrightsinfo:eu-repo/semantics/restrictedAccess
dc.sourceLandslides
dc.sourceLandslides
dc.sourceScopus
dc.subjectColombiaeng
dc.subjectENSOeng
dc.subjectLandslideseng
dc.subjectRainfall variabilityeng
dc.subjectSaTScaneng
dc.subjectWavelet spectral analysiseng
dc.subjectAtmospheric pressureeng
dc.subjectClimate changeeng
dc.subjectLandslideseng
dc.subjectLanthanumeng
dc.subjectMultivariant analysiseng
dc.subjectRaineng
dc.subjectTime series analysiseng
dc.subjectTropicseng
dc.subjectWavelet analysiseng
dc.subjectColombiaeng
dc.subjectEl Nino southern oscillationeng
dc.subjectIntergovernmental panel on climate changeseng
dc.subjectMountain regionseng
dc.subjectRainfall patternseng
dc.subjectRainfall variabilityeng
dc.subjectSatscaneng
dc.subjectSpace time analysiseng
dc.subjectSpacetimeeng
dc.subjectWavelet spectral analyseeng
dc.subjectSpectrum analysiseng
dc.titleSpace-time analysis of the relationship between landslides occurrence, rainfall variability and ENSO in the Tropical Andean Mountain region in Colombiaeng
dc.typearticle
dc.type.localArtículospa
dc.type.versioninfo:eu-repo/semantics/publishedVersion

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