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Coastal paleokarst landforms: a morphometric approach via UAV for coastal management (Algarve, Portugal case study)

2019-01Journal article Restricted access
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dc.contributor.authorOliveira, Sónia
dc.contributor.authorMoura, Delminda
dc.contributor.authorBoski, T.
dc.contributor.authorHorta, João
dc.date.accessioned2020-07-24T10:53:35Z
dc.date.available2020-07-24T10:53:35Z
dc.date.issued2019-01
dc.description.abstractKarst landscapes display remarkable morphological diversity and raise challenging management questions. Understanding karst processes is particularly relevant to the management of densely populated rocky coastlines, since sea-level rise influences the erosion rate of potentially hazardous landforms (e.g. sinkholes). Appropriate management strategies are needed to mitigate against property loss and economic impacts on actively eroding karst. Coastal management in these areas should be based on accurate and reproducible measurements of karst features to better understand and predict their behaviour. Due to their inherent instability and frequent inaccessibility, detailed morphometric studies of exposed coastal sinkholes are limited. We demonstrate the utility of using an unmanned aerial vehicle (UAV) to provide rapid and accurate analysis of spatial data on a large density of sinkholes that would otherwise be inaccessible. UAV data were post-processed and analysed using geographical information (GIS) tools to characterize both individual sinkholes and their spatial distribution patterns. Our study was carried out on the rocky coast of the central Algarve (southern Portugal). As stated in many other previous works, sinkholes spatial distribution is mainly controlled by the network of fractures in the host rock that was also observed in our study area. In addition, the geometric properties and their differences between the studied sites are controlled by weathering processes and synoptic conditions. This research emphasises the geomorphic hazard associated with karst landscapes and reinforces the need to include knowledge about these landforms and their vulnerability to sea-level rise in integrated coastal management plans.
dc.description.sponsorshipErasmus Mundus programme MACOMA SGA [2015-1626/001-001-EMJD]
dc.description.sponsorshipUNESCO UNITWIN Wicop
dc.description.sponsorshipUniversity of Cadiz
dc.description.sponsorshipPortuguese Foundation for Science and Technology (FCT)Portuguese Foundation for Science and Technology [SFRH/BD/104337/2014]
dc.identifier.doi10.1016/j.ocecoaman.2018.10.025
dc.identifier.issn0964-5691
dc.identifier.issn1873-524X
dc.identifier.urihttp://hdl.handle.net/10400.1/14511
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier Sci Ltd
dc.subjectEvaporite Karst
dc.subjectMagnitude-frequency
dc.subjectEvolution
dc.subjectClassification
dc.subjectMorphology
dc.subjectSinkholes
dc.subjectHazard
dc.subjectValley
dc.subjectLidar
dc.subjectDepressions
dc.titleCoastal paleokarst landforms: a morphometric approach via UAV for coastal management (Algarve, Portugal case study)
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMAR%2F00350%2F2013/PT
oaire.citation.endPage261
oaire.citation.startPage245
oaire.citation.titleOcean & Coastal Management
oaire.citation.volume167
oaire.fundingStream5876
person.familyNameJenkins Oliveira Fernandes
person.familyNameMoura
person.familyNameBoski
person.familyNameHorta
person.givenNameSónia Alexandra
person.givenNameDelminda
person.givenNameTomasz
person.givenNameJoão
person.identifier.ciencia-id7B1C-1CB3-A37D
person.identifier.ciencia-id1416-B317-51D1
person.identifier.orcid0000-0002-2991-686X
person.identifier.orcid0000-0002-0952-6805
person.identifier.orcid0000-0003-2462-4179
person.identifier.orcid0000-0003-3663-9036
person.identifier.scopus-author-id57193909844
person.identifier.scopus-author-id15048413000
person.identifier.scopus-author-id6602267486
person.identifier.scopus-author-id55851149800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccess
rcaap.typearticle
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