Please use this identifier to cite or link to this item: https://hdl.handle.net/10953/2387
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dc.contributor.authorCardenal, J.-
dc.contributor.authorFernández, T.-
dc.contributor.authorPérez-García, J.L.-
dc.contributor.authorGómez-Lopez, J.M.-
dc.date.accessioned2024-02-11T12:56:53Z-
dc.date.available2024-02-11T12:56:53Z-
dc.date.issued2019-
dc.identifier.citationCardenal, J.; Fernández, T.; Pérez-García, J.L.; Gómez-López, J.M. 2019. Measurement of Road Surface Deformation Using Images Captured from UAVs. Remote Sens., 11, 1507.es_ES
dc.identifier.issn2072-4292es_ES
dc.identifier.otherhttps://doi.org/10.3390/rs11121507es_ES
dc.identifier.urihttps://hdl.handle.net/10953/2387-
dc.description.abstractThis paper presents a methodology for measuring road surface deformation due to terrain instability processes. The methodology is based on ultra-high resolution images acquired from unmanned aerial vehicles (UAVs). Flights are georeferenced by means of Structure from Motion (SfM) techniques. Dense point clouds, obtained using the multiple-view stereo (MVS) approach, are used to generate digital surface models (DSM) and high resolution orthophotographs (0.02 m GSD). The methodology has been applied to an unstable area located in La Guardia (Jaen, Southern Spain), where an active landslide was identified. This landslide affected some roads and accesses to a highway at the landslide foot. The detailed road deformation was monitored between 2012 and 2015 by means of eleven UAV flights of ultrahigh resolution covering an area of about 260 m × 90 m. The accuracy of the analysis has been established in 0.02 ± 0.01 m in XY and 0.04 ± 0.02 m in Z. Large deformations in the order of two meters were registered in the total period analyzed that resulted in maximum average rates of 0.62 m/month in the unstable area. Some boundary conditions were considered because of the low required flying height (<50 m above ground level) in order to achieve a suitable image GSD, the fast landslide dynamic, continuous maintenance works on the affected roads and dramatic seasonal vegetation changes throughout the monitoring period. Finally, we have analyzed the relation of displacements to rainfalls in the area, finding a significant correlation between the two variables, as well as two different reactivation episodes.es_ES
dc.language.isoenges_ES
dc.publisherMDPIes_ES
dc.relation.ispartofRemote Sensinges_ES
dc.rightsCC0 1.0 Universal*
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/*
dc.titleMeasurement of Road Surface Deformation Using Images Captured from UAVses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
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