Results 101 to 110 of about 47,269 (283)

Seafloor Sediments, Morphologic Features, and Geotechnical Properties of Harrison Bay in the Alaskan Beaufort Sea

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract Sediments on Arctic continental shelves are impacted by sea ice and ice‐related processes for up to 9 months per year. As a result, seabed morphology in cold regions can exhibit features such as ice scours which are absent on lower‐latitude shelves.
E. F. Eidam, N. Stark, J. H. Nienhuis, D. Duncan, N. Brilli, N. Kallioras, R. Smith, A. D. J. Heath   +7 more
wiley   +1 more source

Interdisciplinary Methodology to Extend Technology Readiness Levels in SONAR Simulation from Laboratory Validation to Hydrography Demonstrator

Journal of Marine Science and Engineering, 2019
This paper extends underwater SONAR simulation from laboratory prototype to real-world demonstrator. It presents the interdisciplinary methodology to advance the state of the art from level four to level seven on the technology readiness level (TRL ...
James Riordan, Francis Flannery, Daniel Toal, Matija Rossi, Gerard Dooly   +4 more
doaj   +1 more source

Storm Surge Barriers Reduce Seaward Sediment Supply to Lagoonal Estuaries

Earth's Future, Volume 14, Issue 5, May 2026.
Abstract Numerical simulations with realistic forcing of fixed infrastructure for a proposed storm surge barrier for a lagoonal estuary, Jamaica Bay (New York, USA), are analyzed during typical forcing conditions to assess alterations to flow and sediment transport with the barrier open.
David K. Ralston, Philip M. Orton, John C. Warner, Shima Kasaei   +3 more
wiley   +1 more source

Multispectral backscatter-based characterization of seafloor sediments using calibrated multibeam and tilted single-beam echosounders

Frontiers in Remote Sensing
This study presents a detailed analysis of Angular Response Curves (ARC) extracted from a multi-spectral seabed backscatter dataset utilizing both calibrated single-beam (SBES) and multibeam echosounders (MBES).
Ridha Fezzani, Laurent Berger, Naig Le Bouffant, Xavier Lurton   +3 more
doaj   +1 more source

Shipboard Marine Gravimeters Operated on Vessels in the U.S. Academic Research Fleet: Capabilities and Data Quality

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Shipboard gravity anomaly data provide high‐resolution information for a wide range of Earth and ocean science research as well as ground‐truthing US national geodetic modeling. Motivated by the end of life‐cycle for legacy Bell aerospace marine Gravity Meter system (BGM‐3) gravimeters onboard vessels in the U.S. Academic Research Fleet, a new
Jyun‐Nai Wu, Masako Tominaga, Hannah Mark, Jian Zhu, Daniel Fornari, Maurice Tivey, Thomas Lanagan, Steve Faluotico, Eric Hayden, Marissa Small, Daniel Aliod, Nigel Brady, Alicia Metzger, Potential Field Pool Equipment program   +13 more
wiley   +1 more source

Design of a Ka-band Wideband Multibeam Phased Array

Guangtongxin yanjiu
【Objective】The world has entered the era of 5th Generation Mobile Communication Technology (5G) and satellite Internet, and the demand for communication speed and capacity in various fields has surged, while the application of traditional parabolic and ...
GUAN Jin, SUN Jie, XING Chen, LIAO Yi, LI Yi   +4 more
doaj  

New HI-detected Galaxies in the Zone of Avoidance

, 1998
We present the first results of a blind HI survey for galaxies in the southern Zone of Avoidance with a multibeam receiver on the Parkes telescope. This survey is eventually expected to catalog several thousand galaxies within Galactic latitude |b|
A. J. Green, B. S. Koribalski, Broeils A. H., Caswell J. L., E. M. Sadler, Fairall A. P., Freeman K. C., Kraan-Korteweg R. C., L. Staveley-Smith, Lahav O., M. J. Kesteven, McGaugh S. S., P. A. Henning, R. C. Kraan-Korteweg, R. D. Ekers, R. F. Haynes, R. M. Price, S. Juraszek, Staveley-Smith L., Weinberger R., Yamada T.   +20 more
core   +1 more source

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

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

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