Coastal boulder movement on a rocky shoreline in northwest Ireland from repeat UAV surveys using Structure from Motion photogrammetry

Knight, Jasper; Burningham, Helene; Griffiths, David; Yao, Yao

doi:10.1016/j.geomorph.2023.108883

Cited by 6 publications

(3 citation statements)

References 60 publications

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“…In the case of geomorphology, there is also a wide range of applications in studies, e.g. of river valleys and channel systems [14][15][16][17][18][19][20][21] , coasts [22][23][24][25][26][27][28][29][30] , weathering and slope processes [31][32][33][34] , soil erosion [35][36][37] , glacial and periglacial relief 13,[38][39][40][41] , volcanic relief 42 , the role of macrofauna in the transformation of mudflat relief 43 , fault zone transformation and channel development 44 , the transformation of anthropogenic relief 45 .…”

Section: Background and Summarymentioning

confidence: 99%

A dataset of high-resolution digital elevation models of the Skeiðarársandur kettle holes, Southern Iceland

Szafraniec

2024

Sci Data

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In studies of the relief evolution of smaller landforms, up to several dozen meters in width/diameter, digital elevation models (DEMs) freely accessible in different repositories may be insufficient in terms of resolution. Existing geophysical or photogrammetric equipment is not always available due to costs, conditions and regulations, especially for students or young researchers. An alternative may be the handy-held ground-based Structure from Motion technique. It allows us to obtain free high-resolution DEMs (~0.05 m) using open-source software. The method was tested on kettle holes of the glacial flood origin on Skeiðarársandur (S Iceland). The material was collected in 2022 at two outwash levels of different ages and vegetation cover. The dataset is available in the Zenodo repository; the first part is data processed in point clouds and DEMs, and the second includes original videos in MOV format. The data can be used as a reference to assess changes in the kettle hole relief in subsequent research seasons, as a methodological study for other projects, or for didactic purposes.

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Section: Background and Summarymentioning

confidence: 99%

A dataset of high-resolution digital elevation models of the Skeiðarársandur kettle holes, Southern Iceland

Szafraniec

2024

Sci Data

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“…Although some coastal boulders can be moved under rough sea conditions due to favorable combinations of hydrodynamic processes [57,58], the landward displacement of a high number of large boulders is typical of high-energy processes like tsunamis or exceptional storms [7,54,56]. During July 2017-September 2021, a western Mediterranean earthquake caused very small waves in the Gulf of Taranto unable to determine boulder displacements [9,59].…”

Section: Annual Mobility Of the Coastal Bouldersmentioning

confidence: 99%

Annual Coastal Boulder Mobility Detected in 2017–2021 Remote Sensing Imagery and Its Relation to Marine Storms (Gulf of Taranto, Mediterranean Sea)

Delle Rose

2024

Geosciences

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Landward displacements of coastal boulders are geomorphological signatures of sea flooding and erosion processes. In this study, using open-access resources that do not require the integration of specialist software, the 2017 to 2021 annual mobility of medium, coarse, and very coarse boulders spread over about 100 km of the eastern coast of the Gulf of Taranto (Italy, Mediterranean Sea) was explored. The boulder displacement data obtained from remote sensing imagery were verified and refined by means of geomorphological field investigation. The main results are the following: (1) A large interannual variability in the boulder mobility was found; (2) storm Detlef, which crossed over the Mediterranean during 11–13 November 2019, was recognized as the cause of a massive displacement phenomenon; and (3) the marine weather conditions driving the investigated morphodynamic process were inferred.

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“…Even if "coastal boulders may be mobile under a range of wave conditions" [29], the transport and emplacement of a number of coarse and very coarse boulders is the morphodynamic signature of inundation and erosion processes due to tsunami events or exceptional wind-wave conditions [6,70,73]. During July 2017-September 2021, a western Mediterranean earthquake caused very small waves in the Gulf of Taranto unable to determine boulder displacements [11,80].…”

Section: Annual Mobility Of Coastal Bouldersmentioning

confidence: 99%

Detection of Annual Coastal Boulder Mobility From 2017–2021 Remote Sensing Imagery (Gulf of Taranto, Mediterranean Sea) and Relation With Marine Weather Conditions

Delle Rose

2023

Preprint

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Landward displacement of coastal boulders is a morphodynamic signature of inundation and erosion processes. The study of these movements can provide useful elements for coastal hazards assessment. In this note, using open-access remote sensing resources, the 2017 to 2021 annual mobility of medium, coarse, and very coarse boulders spread over about 100 km of the eastern coast of the Gulf of Taranto (Italy) is detected. A large interannual variability was found. As established by multi-temporal object-based image analysis, one hundred and ten boulders changed position between July 2019 and June 2020, no boulder was displaced between July 2017 and July 2018, and few boulders were displaced between July 2018 and July 2019, and June 2020 and September 2021. A hydrodynamic analysis of the investigated boulder displacement led to the estimation of the energy of nearshore waves that hit the coast. The storm Detlef, that crossed over the Mediterranean Sea during 11-13 November 2019, is presumed to be the main cause of the massive displacement phenomenon.

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Coastal boulder movement on a rocky shoreline in northwest Ireland from repeat UAV surveys using Structure from Motion photogrammetry

Cited by 6 publications

References 60 publications

A dataset of high-resolution digital elevation models of the Skeiðarársandur kettle holes, Southern Iceland

A dataset of high-resolution digital elevation models of the Skeiðarársandur kettle holes, Southern Iceland

Annual Coastal Boulder Mobility Detected in 2017–2021 Remote Sensing Imagery and Its Relation to Marine Storms (Gulf of Taranto, Mediterranean Sea)

Detection of Annual Coastal Boulder Mobility From 2017–2021 Remote Sensing Imagery (Gulf of Taranto, Mediterranean Sea) and Relation With Marine Weather Conditions

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