Results 91 to 100 of about 14,076 (241)

Reconstructing Multibeam Echosounder Bathymetry with Generative Adversarial Networks: Toward Efficient Use of Survey Resources [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The spatial accuracy and resolution of Multibeam Echosounder data are inherently lower than those of high-resolution underwater LiDAR measurements. However, while Multibeam Echosounder provides wide coverage and extensive historical availability, LiDAR ...
H. Ezzy, D. Angel, A. Brook
doaj   +1 more source

Harmonizing Multi-Source Sonar Backscatter Datasets for Seabed Mapping Using Bulk Shift Approaches

Remote Sensing, 2020
The development of multibeam echosounders (MBES) as a seabed mapping tool has resulted in the widespread uptake of backscatter intensity as an indicator of seabed substrate properties.
Benjamin Misiuk, Craig J. Brown, Katleen Robert, Myriam Lacharité   +3 more
doaj   +1 more source

River Sand and Gravel Mining: Global Drivers, Impacts, and Pathways for Sustainable Management

Reviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract River sand and gravel are mined worldwide at volumes that now rival their natural replenishment, yet quantitative knowledge of this mining activity and its consequences lags far behind many other global environmental pressures. We synthesize 411 peer‐reviewed studies published since 1974 within a new Driver‐to‐Management Pathway for ...
Edward Park, Christopher R. Hackney, Dung Duc Tran, Mette Bendixen, Jim Best, Kai Wan Yuen, Hannah Runeckles, Md Sadiul Alam Chyon, Karl Kästner, Sonu Kumar, Halinishi Yusuf, Vanessa Lamb, Lars L. Iversen, Aelis Spiller, Rajiv Sinha, Eduardo Francisco da Silva, Enner Alcantara, Chengcheng Wu, Chengpeng Lu, Chu Jian, Jingyu Wang, Nguyen Duc Thien, Lian Feng, Priyank Pravin Patel, Jiachun Huang, Adam D. Switzer   +25 more
wiley   +1 more source

Reconfigurable Multibeam Holographic Antenna Based on Liquid-Crystal Technology for Ka-Band LEO Satellite Application

IEEE Access
The requirements of low Earth orbit (LEO) satellite systems for high-precision and selective multiple coverage, have driven much interest and demand for millimeter-wave multibeam antennas.
Youngin Yoo, Jinki Park, Changjae Lee, Dong Ki Yoon, Seong-Ook Park   +4 more
doaj   +1 more source

Quantifying Marine Sedimentary Carbon: A New Spatial Analysis Approach Using Seafloor Acoustics, Imagery, and Ground-Truthing Data in Scotland

Frontiers in Marine Science, 2020
Marine sediments are important repositories of organic matter, effectively burying organic carbon (OC) over geological timescales thus providing a climate regulation service.
Corallie Hunt, Urška Demšar, Dayton Dove, Craig Smeaton, Rhys Cooper, William E. N. Austin, William E. N. Austin   +6 more
doaj   +1 more source

An Inflating Upper Mantle Magma Reservoir Beneath the Tip of the Condor Seamount, Azores Revealed by Rapid‐Response Ocean‐Bottom‐Seismometer Data

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Condor Seamount is among the most seismically active regions on the Azores Plateau. In December 2019, an earthquake crisis occurred at the tip of the seamount, which was strongly felt on nearby islands. Two months after the peak of the crisis, we deployed a local network of five ocean‐bottom seismometers around the seamount, recording ...
Yingchen Liu, Neil Mitchell, Dietrich Lange, Ingo Grevemeyer   +3 more
wiley   +1 more source

Raw multibeam EM122 data: METEOR cruise M121 (SE Atlantic) [PDF]

, 2016
Latitude/Longitude extracted from DSHIP. Data acquisition was performed using a multibeam sonar system Simrad EM-122 from Kongsberg. Raw data are delivered within Simrad current multibeam vendor format. SIMRAD raw data can be processed i.e.
Rahlf, Peer, Peer Rahlf (8017274), Anne-Cathrin Wölfl (6958358), Frank, Martin, Wölfl, Anne-Cathrin, Martin Frank (7482416)   +5 more
core   +1 more source

Global Evidence for Off‐Axis Flexural Modification of Abyssal Hill Faults at Mid‐Ocean Ridges

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Young oceanic lithosphere flexes as axial topography decays across mid‐ocean ridge shoulders, yet this deformation has been quantified at only a few segments, leaving its global expression poorly constrained. We analyzed 50 across‐axis bathymetric profiles from 21 regions spanning slow to fast spreading rates, identified 1,201 abyssal‐hill ...
Ran Li, Zhonglan Liu, Shuming Feng, Teng Peng, Yuan Wang   +4 more
wiley   +1 more source

MSM34/2 raw data of EM122 multibeam echosounder (bathymetry, beam time series & water column) [PDF]

, 2018
Multibeam echosounder (MBES) data recorded during RV MARIA S. MERIAN cruise MSM34-2 between 27.12.2013 and 18.01.2014 in the Black Sea. The main objective of this cruise was the mapping and imaging of the gas hydrate distribution and gas accumulations as
Bialas, Jörg, Gross, Felix
core   +1 more source

Multibeam Tile Registration for Teach and Repeat Path Following of an Underwater Vehicle

Drones
This paper proposes a methodology for the generation and registration of three-dimensional data sets to support an adaption of Teach and Repeat path following for an Autonomous Underwater Vehicle (AUV) equipped with a multibeam sonar system.
Peter King, Zhi Leong, Jonathan Duffy
doaj   +1 more source