Results 41 to 50 of about 2,279,354 (175)

On the Information Advantage of Sidescan Sonar Three-Frequency Colour over Greyscale Imagery

Journal of Marine Science and Engineering, 2019
A prototype three-frequency (114, 256, and 410 kHz) colour sidescan sonar system, built by Kongsberg Underwater Mapping Ltd. (Great Yarmouth, UK), was previously described, and preliminary results presented, in Tamsett, McIlvenny, and Watts.
Duncan Tamsett, Jason McIlvenny, James Baxter, Paulo Gois, Benjamin Williamson   +4 more
doaj   +1 more source

A validated 3D point‐cloud analysis workflow for the creation of seagrass canopy height models

Methods in Ecology and Evolution, EarlyView.
Abstract Seagrasses support highly productive ecosystems in both temperate and tropical waters and provide essential ecosystem services. Despite their importance, the vertical structure of seagrasses (i.e. the canopy) remains poorly characterised at the microscale, even though it is a strong predictor of ecological processes that influence both ...
Daniele Ventura
wiley   +1 more source

A concept for seabed rare earth mining in the eastern South Pacific

, 2012
This report presents a concept for mining of rare earth elements from seabed sediment in a promising area of the eastern South Pacific. The document begins with an introduction to the seabed, its regulation and resources.
Bashir, M.B., Zhang, W, Kiosidou, E., Kim, S.H., Wolgamot, H.   +4 more
core   +1 more source

Sediment Classification of Acoustic Backscatter Image Based on Stacked Denoising Autoencoder and Modified Extreme Learning Machine

Remote Sensing, 2020
Acoustic backscatter data are widely applied to study the distribution characteristics of seabed sediments. However, the ghosting and mosaic errors in backscatter images lead to interference information being introduced into the feature extraction ...
Ping Zhou, Gang Chen, Mingwei Wang, Jifa Chen, Yizhe Li   +4 more
doaj   +1 more source

Movement Responses of Seals During Pile Driving for Offshore Wind Farm Construction

Animal Conservation, EarlyView.
Despite rapid growth of the renewable energy industry to meet climate change targets, predictions of population‐level impacts on wildlife are currently hindered by a limited understanding of individual behavioural responses to these developments.
Katherine F. Whyte, Gordon D. Hastie, Carol E. Sparling, Bas Binnerts, Debbie J. F. Russell   +4 more
wiley   +1 more source

3D BATHYMETRY AND ACOUSTIC SEABED CLASSIFICATION OF PELOTAS BASIN, BRAZIL

, 2016
. An acoustic seabed classification of the Pelotas Basin (PB) was generated and overlaid on a 3D bathymetric representation, which was elaborated from acoustic and altimetry data.
Stefan Cruz Weigert, Paloma Lumi Costa, Marcelo Peres de Pinho, Lauro Júlio Calliari, Lauro Saint Pastous Madureira   +4 more
core   +1 more source

Evolution, Routing and Reservoir Characteristics of Submarine Channels in a Structurally Deforming Slope Setting: Deep‐Water Joint Development Zone of Nigeria and São Tomé and Príncipe

Journal of Petroleum Geology, EarlyView.
ABSTRACT Deep‐water slope channels and associated facies are a major part of clastic sediment dispersal system extending from the shelf‐edge to the abyssal plain. The toe‐thrust area of the deep‐water Niger Delta enables the analysis of these channels and their interaction with evolving fault‐controlled sea‐floor topography to be determined ...
Stanley Ang, Mike Mayall, Lidia Lonergan
wiley   +1 more source

Digital Twins for Offshore Wind Operation and Maintenance: A Review

Wind Energy, Volume 29, Issue 10, October 2026.
ABSTRACT Offshore wind has become a key focus for achieving carbon neutrality. However, offshore wind turbines face considerable operational and maintenance challenges due to harsh conditions and difficult access. Integrating digital twin technology helps support operation and maintenance activities.
Xiaomei Hu, Ravi Pandit, Yifan Zhao, Bernadin Namoano, Jiarong Hong   +4 more
wiley   +1 more source

Energy-Efficient Design of Seabed Substrate Detection Model Leveraging CNN-SVM Architecture and Sonar Data

EAI Endorsed Transactions on Energy Web
This study introduces an innovative seabed substrate detection model that harnesses the complementary strengths of Convolutional Neural Networks (CNNs) and Support Vector Machines (SVMs) to analyze sonar data with a focus on energy efficiency. The model
Keming Wang, Chengli Wang, Wenbing Jin, Liuming Qi   +3 more
doaj   +1 more source

Multispectral Multibeam Echo Sounder Backscatter as a Tool for Improved Seafloor Characterization

Geosciences, 2019
The establishment of multibeam echosounders (MBES), as a mainstream tool in ocean mapping, has facilitated integrative approaches towards nautical charting, benthic habitat mapping, and seafloor geotechnical surveys. The combined acoustic response of the
Craig J. Brown, Jonathan Beaudoin, Mike Brissette, Vicki Gazzola   +3 more
doaj   +1 more source