Novel Method to Map the Morphology of Submarine Landslide Headwall Scarps Using Remotely Operated Vehicles

Huvenne, Veerle; Georgiopoulou, Aggeliki; Chaumillon, Leo; Iacono, Claudio Lo; Wynn, Russell B.

doi:10.1007/978-3-319-20979-1_13

Cited by 11 publications

(8 citation statements)

References 15 publications

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“…The cabling supplies power and transfers data making intensive and detailed operations possible. They provide the opportunity to make observations in new and difficult environments and inspect and guide specific measurements or activities during the survey (see e.g., Huvenne et al, 2011Huvenne et al, , 2016aWynn et al, 2014). Powered, autonomous, underwater vehicles (AUVs) maintain many of the capabilities of ROV operation although under their own propulsion, thus extending the range and area covered relative to a control base.…”

Section: Remotely Operated and Autonomous Vehiclesmentioning

confidence: 99%

A Review of the Tools Used for Marine Monitoring in the UK: Combining Historic and Contemporary Methods with Modeling and Socioeconomics to Fulfill Legislative Needs and Scientific Ambitions

et al. 2017

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Marine environmental monitoring is undertaken to provide evidence that environmental management targets are being met. Moreover, monitoring also provides context to marine science and over the last century has allowed development of a critical scientific understanding of the marine environment and the impacts that humans are having on it. The seas around the UK are currently monitored by targeted, impact-driven, programmes (e.g., fishery or pollution based monitoring) often using traditional techniques, many of which have not changed significantly since the early 1900s. The advent of a new wave of automated technology, in combination with changing political and economic circumstances, means that there is currently a strong drive to move toward a more refined, efficient, and effective way of monitoring. We describe the policy and scientific rationale for monitoring our seas, alongside a comprehensive description of the types of equipment and methodology currently used and the technologies that are likely to be used in the future. We contextualize the way new technologies and methodologies may impact monitoring and discuss how whole ecosystems models can give an integrated, comprehensive approach to impact assessment. Furthermore, we discuss how an understanding of the value of each data point is crucial to assess the true costs and benefits to society of a marine monitoring programme.

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Section: Remotely Operated and Autonomous Vehiclesmentioning

confidence: 99%

A Review of the Tools Used for Marine Monitoring in the UK: Combining Historic and Contemporary Methods with Modeling and Socioeconomics to Fulfill Legislative Needs and Scientific Ambitions

et al. 2017

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“…In particular, Remotely Operated Vehicles (ROVs) offer the potential to map vertical habitats with a fine-scale resolution (Huvenne et al, 2012(Huvenne et al, , 2018Robert et al, 2017). The selection of the appropriate configuration of the mapping equipment is crucial, as a downward-facing orientation can limit the acquisition of fine-scale features of steep environments in digital terrain models (Huvenne et al, 2016). Outcrops and overhanging features obstruct downward acoustic measurements in complex vertical habitats (Robert et al, 2017) meaning forward-facing data acquisition is optimal for the terrain reconstruction of vertical features (Yoerger et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

“…Recent studies using forward-looking MBES mounted on ROVs have retrieved digital models of nearvertical walls of >60,000 m 2 . They have been used to assess the geomorphology of the vertical walls to investigate landslide processes (Huvenne et al, 2016) and in relation to the smallscale distribution of biological communities for ecological studies (Huvenne et al, 2011;Robert et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

High-Resolution Vertical Habitat Mapping of a Deep-Sea Cliff Offshore Greenland

et al. 2021

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Recent advances in deep-sea exploration with underwater vehicles have led to the discovery of vertical environments inhabited by a diverse sessile fauna. However, despite their ecological importance, vertical habitats remain poorly characterized by conventional downward-looking survey techniques. Here we present a high-resolution 3-dimensional habitat map of a vertical cliff hosting a suspension-feeding community at the flank of an underwater glacial trough in the Greenland waters of the Labrador Sea. Using a forward-looking set-up on a Remotely Operated Vehicle (ROV), a high-resolution multibeam echosounder was used to map out the topography of the deep-sea terrain, including, for the first time, the backscatter intensity. Navigational accuracy was improved through a combination of the USBL and the DVL navigation of the ROV. Multi-scale terrain descriptors were derived and assigned to the 3D point cloud of the terrain. Following an unsupervised habitat mapping approach, the application of a K-means clustering revealed four potential habitat types, driven by geomorphology, backscatter and fine-scale features. Using groundtruthing seabed images, the ecological significance of the four habitat clusters was assessed in order to evaluate the benefit of unsupervised habitat mapping for further fine-scale ecological studies of vertical environments. This study demonstrates the importance of a priori knowledge of the terrain around habitats that are rarely explored for ecological investigations. It also emphasizes the importance of remote characterization of habitat distribution for assessing the representativeness of benthic faunal studies often constrained by time-limited sampling activities. This case study further identifies current limitations (e.g., navigation accuracy, irregular terrain acquisition difficulties) that can potentially limit the use of deep-sea terrain models for fine-scale investigations.

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“…These include geophysical surveying, (e.g., seismic reflection, multibeam bathymetry), geological sampling (e.g., coring) and geotechnical investigations, analogue and numerical modelling. More recently, state-of-the-art technologies such as the use of remotely-operated vehicle (ROV) and autonomous underwater vehicles (AUV) have unveiled unprecedented details about the morphology of MTD (Huvenne et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Submarine Mass Movements and Their Consequences: Progress and Challenges

Lamarche

Mountjoy

Bull

et al. 2016

Submarine Mass Movements and Their Consequences

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This sixth edition of the Submarine Mass Movements and Their Consequences volume, coincident with the seventh eponymous conference includes 61 papers that span a variety of topics and are organized into nine parts as follows:(1) Submarine mass movement in margin construction and economic significance; (2) Failure dynamics from landslide geomorphology; (3) Geotechnical aspects of mass movement; (4) Multidisciplinary case studies; (5) Tectonics and mass movement processes; (6) Fluid flow and gas hydrates, (7) Mass transport deposits in modern and outcrop sedimentology; (8) Numerical and statistical analysis; and, (9) Tsunami generation from slope failure. The breath and quality of this body of work underpins a positive outlook and our enthusiasm for the future direction of research in this area of science as it moves towards ever more detailed analysis and monitoring. We also emphasize in this volume the need to look at mountain-scale

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Novel Method to Map the Morphology of Submarine Landslide Headwall Scarps Using Remotely Operated Vehicles

Cited by 11 publications

References 15 publications

A Review of the Tools Used for Marine Monitoring in the UK: Combining Historic and Contemporary Methods with Modeling and Socioeconomics to Fulfill Legislative Needs and Scientific Ambitions

A Review of the Tools Used for Marine Monitoring in the UK: Combining Historic and Contemporary Methods with Modeling and Socioeconomics to Fulfill Legislative Needs and Scientific Ambitions

High-Resolution Vertical Habitat Mapping of a Deep-Sea Cliff Offshore Greenland

Submarine Mass Movements and Their Consequences: Progress and Challenges

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