Results 61 to 70 of about 12,061 (223)

Geometric and Radiometric Correction of Multibeam Backscatter Derived from Reson 8101 Systems [PDF]

, 2002
A common by-product of multibeam surveys is a measure of the backscattered acoustic intensity from the seafloor. These data are of immense interest to geologists and geoscientists since maps of the acoustic backscatter strength can be used to infer ...
Beaudoin, Jonathan, Clarke, J.E. Hughes, Gardner, James V., Van den Ameele, Edward J   +3 more
core   +1 more source

Seafloor Segmentation Based on Bathymetric Measurements from Multibeam Echosounders Data [PDF]

, 2003
Bathymetric data depicts the geomorphology of the seabottom and allows characterization of spatial distributions of apparent benthic habitats. The variability of seafloor topography can be defined as a texture.
Cutter, Randy G, Jr., Mayer, Larry A., Rzhanov, Yuri   +2 more
core   +2 more sources

Rayleigh Waves From OHANA OBSs in the Northeast Pacific Ocean Reveal Low Deep Shear Velocities and Pervasive Azimuthal Anisotropy

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract The 2021–2023 OHANA ocean‐bottom seismometer deployment in the northeast Pacific Ocean provides a rich data set for seismic studies to explore the crust, lithosphere and asthenosphere in a 600 km wide region about 1,500 km northeast of Hawaii, west of the Moonless Mountains. The study area covers mainly 40‐to‐55 Myr‐old Pacific lithosphere.
Gabi Laske, Grace Atkisson, John A. Collins, Donna K. Blackman   +3 more
wiley   +1 more source

Multi-dimensional, multi-national, multi-faceted hydrographic training: the Nippon Foundation GEBCO training program at the University of New Hampshire [PDF]

, 2005
Hydrographic training entered a new era when students arrived at the University of New Hampshire in August of 2004 to form the first class of the Nippon Foundation GEBCO (General Bathymetric Chart of the Oceans) training program.
Angwenyi, Clive, Karlapati, Srinivas, Monahan, Dave, Montoro, Hugo, Morishita, Taisei, Mustapha, Abubakar, Peralta, Walter Reynoso, Sharma, Shereen   +7 more
core   +1 more source

Great Meteor Seamount Circulation Revisited: Insights Into Cold‐Water Coral Habitat Potential

Journal of Geophysical Research: Oceans, Volume 131, Issue 5, May 2026.
Abstract Seamounts play a crucial role in shaping deep‐sea ecosystem structure, influencing ocean circulation, enhancing biological productivity, and supporting diverse marine life. The Great Meteor Seamount (GMS), is the largest seamount in the North Atlantic and a key ecological feature in the regional network of the Protected Areas of the Azores ...
Vibe Schourup‐Kristensen, Lindsey Jo Broadus, Janus Larsen, Cordula Göke, Franziska U. Schwarzkopf, Inês Tojeira, Manfred Kaufmann, Miguel Souto, Anna van der Kaaden, Christian Mohn   +9 more
wiley   +1 more source

Bathymetry mapping with empirical bathymetry method based on sentinel application platform case study: Bawean Island, Central Java [PDF]

BIO Web of Conferences
Bathymetry information is an important requirement for the marine and fisheries sector in Indonesia. However, the acquisition of information is done in the traditional way, namely surveys using single/multibeam echosounder devices carried by ships.
Ananda Putra Suardana A. A. Md., Thayyib Achmad Umar, Setiawan Kuncoro Teguh, Prasetio Wiji, Marpaung Sartono, Febrianto Sigit, Kusuma Fajar Bahari, Anggraini Nanin, Sutanto Ahmad, Priyambodo Dino Gunawan   +9 more
doaj   +1 more source

A procedure for developing an acceptance test for airborne bathymetric lidar data application to NOAA charts in shallow waters [PDF]

, 2013
National Oceanic and Atmospheric Administration (NOAA) hydrographic data is typically acquired using sonar systems, with a small percent acquired via airborne lidar bathymetry for near‐shore areas.
Aslaksen, Michael, Ferguson, Jeffrey, Imahori, Gretchen, Jeong, Inseong, Parrish, Christopher, Pe\u27eri, Shachak, Scharff, Dave, Sellars, Jon, White, Stephen A, Wozumi, Toshi   +9 more
core   +1 more source

A Numerical Study of the Effects of Density Contrast on Flow, Turbulence, and Mixing at the Negro/Solimoes Confluence, Brazil

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract Eddy‐resolving numerical simulations are conducted to investigate the effects of density contrast between the confluent flows on hydrodynamics, coherent structures and mixing downstream of the confluence between the Negro and Solimões Rivers, Brazil, which is characterized by both a large discharge (>100,000 m3/s) and a large aspect‐ratio (W/D 
C. Jiang, M. Koken, G. Constantinescu, C. Gualtieri   +3 more
wiley   +1 more source

Nationwide 8m Hydrologically Conditioned Digital Elevation and Hydraulic Roughness Maps for Aotearoa New Zealand

Geoscience Data Journal, Volume 13, Issue 2, April 2026.
We introduce an 8m Aotearoa New Zealand wide hydrologically conditioned DEMs and roughness generated in April 2025, which is publicly available on ZENODO European Union Open Research Repository (https://zenodo.org/records/16734446) with the DOI 10.5281/zenodo.16734446. This dataset is ideal for flood modelling and other topologically driven analyses in
R. Pearson, A. Harang, C. Bosserelle, S. Dean, C. Cattoën, T. Carey‐Smith, R. Srinivasan, H. Shiona, M. Wilkins, G. Smart, S. Wadhwa, G. Reeves, E. M. Lane   +12 more
wiley   +1 more source

Elastic Flexure of Young, Overlapping Basaltic Lava Flows Offshore the Galápagos and Hawaiian Islands: Observations, Modeling, and Thermal/Chronological Analysis

Geochemistry, Geophysics, Geosystems, 2020
A recent multibeam bathymetry survey in the Galápagos archipelago revealed a novel observation between the islands of Santa Cruz and Santiago: a steep flexural moat formed between two volcanic flows, nearly 50 m deep and about 500 m wide.
Kathleen Abbott, Mark A. Richards
doaj   +1 more source