Results 51 to 60 of about 346 (129)

Seabed Classification Using Multibeam Echosounder Measurement Data

IOP Conference Series: Earth and Environmental Science, 2022
Abstract Multibeam Echosounder (MBES) utilizes acoustic waves emitted to the seafloor through a transmitter or transducer and records its reflective. The information obtained by MBES are depth data and the scattering value of the acoustic signal reflected by the object or the seabed, called backscatter.
R Nitriansyah, B K Cahyono
openaire   +1 more source

The Structure and Lifecycle of Stratified Mixing by Shear Instabilities in Continuously Forced Flows

Journal of Geophysical Research: Oceans, Volume 131, Issue 7, July 2026.
Abstract The turbulent energy cascade of ocean mixing remains poorly understood at geophysically large Reynolds numbers (Re $\mathrm{R}\mathrm{e}$). Here we propose a new conceptual model for the structure of small‐scale mixing grounded in high‐resolution multibeam echosounding observations from the mouth of the Connecticut River, a shallow salt‐wedge ...
Adrien Lefauve, C. Bassett, D. S. Plotnick, A. C. Lavery, W. R. Geyer   +4 more
wiley   +1 more source

A Multibeam-Based SLAM Algorithm for Iceberg Mapping Using AUVs

IEEE Access, 2018
Using autonomous underwater vehicles (AUVs) for mapping underwater topography of sea-ice and icebergs, or detecting keels of ice ridges, is foreseen as enabling technology in future arctic marine operations.
Petter Norgren, Roger Skjetne
doaj   +1 more source

Coralligenous banks along the western and northern continental shelf of Sardinia Island (Mediterranean Sea)

Journal of Maps, 2022
Mapping of coralligenous banks was carried out along the continental shelf of the northern and western margin of Sardinia Island (Italy, western Mediterranean Sea) in the context of the European Marine Strategy Framework Directive (MSFD, 2008/56/EC ...
Giovanni De Falco, Alessandro Conforti, Walter Brambilla, Francesca Budillon, Giulia Ceccherelli, Mario De Luca, Gabriella Di Martino, Ivan Guala, Sara Innangi, Vincenzo Pascucci, Luigi Piazzi, Laura Pireddu, Antonio Santonastaso, Renato Tonielli, Simone Simeone   +14 more
doaj   +1 more source

Can black coral forests be detected using multibeam echosounder “multi-detect” data?

Frontiers in Remote Sensing, 2023
The black coral Anthipatella wollastoni forms marine animal forests in the mesophotic zone. The spatial extent of black coral forests is not well known in many regions.
Peter Feldens, Philipp Held, Francisco Otero-Ferrer, Lorenzo Bramanti, Lorenzo Bramanti, Fernando Espino, Jens Schneider von Deimling   +6 more
doaj   +1 more source

Hotspot magmatism and volcanic hazard at Cape Verde through the lens of shipborne surveying and dredging

Geology Today, Volume 42, Issue 4, Page 174-182, July/August 2026.
The Cape Verde archipelago is a long‐lived volcanic ocean island chain formed by a mantle plume in the Atlantic Ocean. The archipelago is characterized by ten subaerial islands with complex age relationships, abundant submarine volcanism and variable volcanic hazards.
Brian Oller, Hunter R. Edwards, Yash Srivastava, Abigail K. Barker, Alex Kovalick, Giovanni Lima, Cornelia Nilsson, Marine Paquet, Easton Satin‐Shaw, Isaias Teixeira, M. Jeff Buxton, Noah DesRosiers, Mason Schettig, James M.D. Day   +13 more
wiley   +1 more source

Automated Filtering of Multibeam Water-Column Data to Detect Relative Abundance of Giant Kelp (Macrocystis pyrifera)

Remote Sensing, 2020
Modern multibeam echosounders can record backscatter data returned from the water above the seafloor. These water-column data can potentially be used to detect and map aquatic vegetation such as kelp, and thus contribute to improving marine habitat ...
Alexandre C. G. Schimel, Craig J. Brown, Daniel Ierodiaconou   +2 more
doaj   +1 more source

High-resolution multibeam bathymetry of the northern Mid-Atlantic Ridge at 45–46° N: the Moytirra hydrothermal field

Journal of Maps, 2021
This work presents a new high-resolution multibeam bathymetric map of a segment of active deep sea-floor spreading in the Atlantic Ocean, the northern Mid-Atlantic Ridge (MAR) at 45–46º N.
Luis Somoza, Teresa Medialdea, Francisco J. González, Sara Machancoses, Jose A. Candón, Constantino Cid, António Calado, Andreia Afonso, Luisa Pinto Ribeiro, Iker Blasco, Mónica Albuquerque, María Asensio-Ramos, Renato Bettencourt, Cristina De Ignacio, Enrique López-Pamo, Bruno Ramos, Blanca Rincón-Tomás, Esther Santofimia, Miguel Souto, Inês Tojeira, Cláudia Viegas, Pedro Madureira   +21 more
doaj   +1 more source

Incorporating environmental DNA metabarcoding for improved benthic biodiversity and habitat mapping

Remote Sensing in Ecology and Conservation, Volume 12, Issue 3, Page 444-461, June 2026.
Seafloor imagery is commonly used to collect information about the distribution of benthic organisms in order to generate habitat and biodiversity maps. Recent advances in genomics (e.g., environmental DNA; eDNA) show potential to complement video surveys for habitat mapping, but there have been few examples testing this.
Rylan J. Command, Shreya Nemani, Benjamin Misiuk, Mehrdad Hajibabaei, Nicole Fahner, Emily Porter, Greg Singer, Beverly McClenaghan, Katleen Robert   +8 more
wiley   +1 more source

Multidisciplinary Investigation of Healy Submarine Volcano (Kermadec Arc, New Zealand) Using AUV and Submersible Data: Structural Control on Magmatic and Hydrothermal Processes

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract We present a comprehensive multidisciplinary investigation of the Healy submarine volcano in the southern Kermadec arc, northeast of New Zealand. We show the first results of sidescan‐sonar data collected at a submarine arc volcano by an Autonomous Underwater Vehicle (AUV).
A. Bagnasco, F. Caratori Tontini, C. E. J. de Ronde, S. L. Walker, L. Cocchi, A. Ghirotto, E. Armadillo   +6 more
wiley   +1 more source