000070946 001__ 70946
000070946 005__ 20191127155500.0
000070946 0247_ $$2doi$$a10.3390/rs10040571
000070946 0248_ $$2sideral$$a106525
000070946 037__ $$aART-2018-106525
000070946 041__ $$aeng
000070946 100__ $$aBenito-Calvo, A.
000070946 245__ $$a4D monitoring of active sinkholes with a Terrestrial Laser Scanner (TLS): A Case study in the evaporite karst of the Ebro Valley, NE Spain
000070946 260__ $$c2018
000070946 5060_ $$aAccess copy available to the general public$$fUnrestricted
000070946 5203_ $$aThis work explores, for the first time, the application of a Terrestrial Laser Scanner (TLS) and a comparison of point clouds in the 4D monitoring of active sinkholes. The approach is tested in three highly-active sinkholes related to the dissolution of salt-bearing evaporites overlain by unconsolidated alluvium. The sinkholes are located in urbanized areas and have caused severe damage to critical infrastructure (flood-control dike, a major highway). The 3D displacement models derived from the comparison of point clouds with exceptionally high spatial resolution allow complex spatial and temporal subsidence patterns within one of the sinkholes to be resolved. Detected changes in the subsidence activity (e.g., sinkhole expansion, translation of the maximum subsidence zone, development of incipient secondary collapses) are related to potential controlling factors such as floods, water table changes or remedial measures. In contrast, with detailed mapping and high-precision leveling, the displacement models, covering a relatively short time span of around 6 months, do not capture the subtle subsidence (< 0.6-1 cm) that affects the marginal zones of the sinkholes, precluding precise mapping of the edges of the subsidence areas. However, the performance of TLS can be adversely affected by some methodological limitations and local conditions: (1) limited accuracy in large investigation areas that require the acquisition of a high number of scans, increasing the registration error; (2) surface changes unrelated to sinkhole activity (e.g., vegetation, loose material); (3) traffic-related vibrations and wind blast that affect the stability of the scanner.
000070946 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/CGL2013-40867-P$$9info:eu-repo/grantAgreement/ES/MINECO/CGL2017-85045-P
000070946 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000070946 590__ $$a4.118$$b2018
000070946 591__ $$aREMOTE SENSING$$b7 / 30 = 0.233$$c2018$$dQ1$$eT1
000070946 592__ $$a1.43$$b2018
000070946 593__ $$aEarth and Planetary Sciences (miscellaneous)$$c2018$$dQ1
000070946 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000070946 700__ $$0(orcid)0000-0002-5407-940X$$aGutiérrez, F.$$uUniversidad de Zaragoza
000070946 700__ $$aMartínez-Fernández, A.
000070946 700__ $$0(orcid)0000-0001-6175-0364$$aCarbonel, D.$$uUniversidad de Zaragoza
000070946 700__ $$aKarampaglidis, T.
000070946 700__ $$0(orcid)0000-0001-8949-5676$$aDesir, G.$$uUniversidad de Zaragoza
000070946 700__ $$aSevil, J.
000070946 700__ $$0(orcid)0000-0003-2181-732X$$aGuerrero, J.$$uUniversidad de Zaragoza
000070946 700__ $$0(orcid)0000-0002-8013-8637$$aFabregat, I.$$uUniversidad de Zaragoza
000070946 700__ $$0(orcid)0000-0002-4899-680X$$aGarcía-Arnay, Á.$$uUniversidad de Zaragoza
000070946 7102_ $$12000$$2427$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Geodinámica Externa
000070946 773__ $$g10, 4 (2018), 571 [19 pp]$$pRemote sens. (Basel)$$tRemote Sensing$$x2072-4292
000070946 8564_ $$s617860$$uhttps://zaguan.unizar.es/record/70946/files/texto_completo.pdf$$yVersión publicada
000070946 8564_ $$s108748$$uhttps://zaguan.unizar.es/record/70946/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000070946 909CO $$ooai:zaguan.unizar.es:70946$$particulos$$pdriver
000070946 951__ $$a2019-11-27-15:50:05
000070946 980__ $$aARTICLE