Results 61 to 70 of about 6,191 (207)

AI‐Based Autonomous Sailboat Navigation: A Review

Journal of Field Robotics, Volume 42, Issue 8, Page 4157-4180, December 2025.
ABSTRACT This review explores the recent advancements in AI‐driven autonomous sailboat navigation, underscoring its pivotal role in ocean monitoring and real‐time maritime data collection. Drawing on an extensive range of primary and secondary sources, the study critically evaluates current challenges, innovative control algorithms, and path planning ...
Vishali Mankina, André P. D. Araújo, Raphael Guerra, Esteban W. G. Clua, Carlo Cernicchiaro, Luiz M. G. Gonçalves, Cosimo Distante   +6 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

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

A Possible Tsunamigenic Near‐Trench Strike‐Slip Fault, Offshore North Ecuador–South Colombia

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract Seismic reflection and bathymetry collected along the Ecuador–Colombia obliquely convergent margin allow the first characterization of the NNE‐trending, near‐trench strike‐slip Ancon Fault in the possible source region of the 1906‐Mw8.6–8.8 and 1979‐Mw8.2 earthquakes, which produced devastating tsunamis.
J.‐Y. Collot, G. Ratzov, F. Michaud, A. Galve, J.‐N. Proust, M. Gonzalez, J.‐F. Lebrun, M. Laigle, B. Marcaillou   +8 more
wiley   +1 more source

Cyclic Pockmark Formation Linked to Plio‐Pleistocene Sea‐Level Rise on the Chatham Rise, New Zealand

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract Pockmarks are geomorphological depressions on the seafloor in various underwater environmental settings. They are commonly linked to fluid release from subsurface reservoirs; however, the processes involved, fluid types, and relative timing of their formation often remain enigmatic.
Fynn Warnke, Ingo A. Pecher, Lorna J. Strachan, Jess I. T. Hillman, Brandon Dugan   +4 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

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

Automated, objective texture segmentation of multibeam echosounder data - Seafloor survey and substrate maps from James Island to Ozette Lake, Washington Outer Coast [PDF]

, 2007
Without knowledge of basic seafloor characteristics, the ability to address any number of critical marine and/or coastal management issues is diminished. For example, management and conservation of essential fish habitat (EFH), a requirement mandated by
Beaudoin, Jonathan D., Cutter, George R., Intelmann, Steven S.   +2 more
core  

Comparative analysis of singlebeam and multibeam echosounder bathymetric data

IOP Conference Series: Materials Science and Engineering, 2021
Abstract Gresik Port, East Java, is a port that has a very strategic location because there are several large industries such as the PT. Petrokimia Gresik, PT. Semen Gresik, PT. Maspion, PT. Wilmar, PT. Pelindo III, and other factories.
null Khomsin, D G Pratomo, I Saputro
openaire   +1 more source

Wave Friction Factor and Roughness Definition in Multi‐Scale Coral Barrier Reef

Journal of Geophysical Research: Oceans, Volume 130, Issue 12, December 2025.
Abstract Wave frictional dissipation is a key process in rough seabed’s environments such as coral reefs, expected to significantly reduce incoming wave energy. In phase‐averaged models, wave dissipation is typically estimated through a wave friction factor fw ${f}_{w}$ which is dependent of the near‐bed orbital excursion and the hydraulic length, a ...
Mila Geindre, Damien Sous, Héloïse Michaud, France Floc'h, Xavier Bertin, Aline Aubry, Matthieu Jeanson, Marc Pezerat   +7 more
wiley   +1 more source