{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,24]],"date-time":"2026-07-24T16:15:33Z","timestamp":1784909733536,"version":"3.55.0"},"reference-count":81,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2020,10,30]],"date-time":"2020-10-30T00:00:00Z","timestamp":1604016000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>The aim of this study is to demonstrate the advantages of using micro drones in the study of large slow-moving landslides, which are widespread along the northwestern coast of Malta. In particular, attention was given to the inventory and analysis of gravity-induced joints and megaclast deposits at four study sites selected due to the presence of remarkable examples of lateral spreads evolving into block slides. The research was carried out by means of Google Earth (GE) image analysis and uncrewed aerial vehicle digital photogrammetry (UAV-DP). UAV-DP outputs enabled the identification and characterization of tens of persistent joints (locally exceeding 150 m) and permitted the size categorization of thousands of blocks. With reference to gravity-induced joints, a favorable agreement was found between existing datasets (mainly based on the integration of GE analysis and field survey) and UAV-DP outputs in terms of the identification of joints and their persistence. Conversely, the use of the UAV-DP technique showed significant advantages in terms of joint aperture determination (even exceeding 1 m) and distribution setting. Regarding the extensive megaclast deposits, UAV-DP enabled the identification of 8943 individuals which, compared with the 5059 individuals identified by GE analysis, showed an increase in the total population of 76%. This is related to the high accuracy of DP-derived orthomosaics and 3D models, which are particularly useful for identifying detached blocks. The inexpensive technique used in this research highlights its potential for being extended to other rocky coastal areas affected by slow-moving landslides.<\/jats:p>","DOI":"10.3390\/rs12213566","type":"journal-article","created":{"date-parts":[[2020,10,30]],"date-time":"2020-10-30T21:34:47Z","timestamp":1604093687000},"page":"3566","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":85,"title":["Advantages of Using UAV Digital Photogrammetry in the Study of Slow-Moving Coastal Landslides"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1804-9887","authenticated-orcid":false,"given":"Stefano","family":"Devoto","sequence":"first","affiliation":[{"name":"Department of Mathematics and Geosciences, University of Trieste, via Weiss 2, 34127 Trieste, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vanja","family":"Macovaz","sequence":"additional","affiliation":[{"name":"Department of History, Archaeology, Geography, Fine and Performing Arts (SAGAS), University of Florence, via San Gallo 10, 50129 Firenze, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9042-8785","authenticated-orcid":false,"given":"Matteo","family":"Mantovani","sequence":"additional","affiliation":[{"name":"National Research Council of Italy (CNR), Research Institute for Geo-Hydrological Protection (IRPI), Corso Stati Uniti 4, 35127 Padova, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1600-4255","authenticated-orcid":false,"given":"Mauro","family":"Soldati","sequence":"additional","affiliation":[{"name":"Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8677-9526","authenticated-orcid":false,"given":"Stefano","family":"Furlani","sequence":"additional","affiliation":[{"name":"Department of Mathematics and Geosciences, University of Trieste, via Weiss 2, 34127 Trieste, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,10,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"291","DOI":"10.1144\/GSL.QJEG.1978.011.04.03","article-title":"Large landslides in London Clay at Herne Bay, Kent","volume":"11","author":"Bromhead","year":"1978","journal-title":"Q. 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