Results 71 to 80 of about 346 (129)

Interaction of internal waves with the seafloor on the Namibian shelf (SE Atlantic Ocean): Implications for seafloor geomorphology

Earth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.
Over geological timescales, internal waves play a significant role in shaping the seafloor morphology. They generate nepheloid layers, slope‐parallel channels and escarpments with erosional surfaces. Abstract The long‐term impact of internal waves on sedimentation and seafloor geomorphology remains poorly constrained.
Elda Miramontes, Claudia Wienberg, Tilmann Schwenk, Christian Mohn, Nadezhda Lagunova, Ling Wang, Paul Wintersteller, Jürgen Titschack, Victor Oki, Ulrike Hanz, Furu Mienis, Sabrina Köper, Maren Walter, Dierk Hebbeln   +13 more
wiley   +1 more source

Combining multibeam and single beam echosounders for quantifying gas bubble release from the seafloor

Limnology and Oceanography: Methods, Volume 24, Issue 2, February 2026.
Abstract Marine gas bubble release is a worldwide phenomenon that impacts the local marine ecosystem and contributes to carbon fluxes with respect to global warming. It is still challenging to assess gas flow for large seep areas (tens of km2), but recent advances in calibrating and processing multibeam echosounder (MBES) data make this problem ...
P. Urban, M. E. Veloso‐Alarcón, J. Greinert   +2 more
wiley   +1 more source

Using seafloor echo-integrated backscatter for monitoring single beam echosounder calibration

Frontiers in Remote Sensing
IntroductionIn recent years, methods have been developed to calibrate seafloor backscatter measurements from hydrographic multibeam echosounders. Some of these methods involve the use of well-characterized reference areas that consistently exhibit stable
N. Le Bouffant, L. Berger, R. Fezzani
doaj   +1 more source

Swath bathymetry imagery of fjord-lakes from Québec-Labrador, eastern Canada

Scientific Data
Accurate mapping of inland waters is essential for managing freshwater resources. This mapping is usually undertaken using single beam echosounder, which provides interpolated low-resolution bathymetric maps.
Léo Chassiot, Patrick Lajeunesse, Alexandre Normandeau, Gabriel Joyal, Annie-Pier Trottier, Antoine Gagnon-Poiré, Geneviève Philibert, Jean-François Bernier, Pierre-Olivier Couette, François-Xavier L’Heureux-Houde, Etienne Brouard, Bryan Sinkunas, Antoine Morissette, Ariane Frigon   +13 more
doaj   +1 more source

DIMENSION OF SEAMOUNT USING MULTIBEAM ECHOSOUNDER IN BENGKULU WATERS

Jurnal Ilmu dan Teknologi Kelautan Tropis, 2013
<p>The purpose of this research was to determine the dimensions of seamount using echosuonder in Bengkulu waters.  The survey was conducted by BPPT, LIPI, the Ministry of Energy and Mineral Resources, CGGVeritas, and the Institut de Physique du Globe (IPG) Paris in the southwest of the Sumatera island on 18-19 December 2010.
Fahrulian Fahrulian, Henry Manik, Djoko Hartoyo   +2 more
openaire   +2 more sources

Improvement of Seagrass Habitat Mapping Using Integration of Habitat Suitability Model and Seafloor Classification Map

Asian Fisheries Science
Acoustic datasets offer considerable advantages in high-resolution seagrass habitat mapping applications. However, the nature of seafloor features for seagrass habitat on a habitat suitability model (HSM) is limited due to single–species output ...
MUHAMMAD ABDUL HAKIM MUHAMAD, ROZAIMI CHE HASAN, NAJHAN MD SAID, KHAIRA ISMAIL, AZIZI ALI, MOHD SHAHMY MOHD SAID, RAIZ RAZALI   +6 more
doaj   +1 more source

Modelling approaches to multibeam echosounders for sound field characterization

The Journal of the Acoustical Society of America
Concern over the impact of multibeam echosounders (MBES) on marine life has increased in recent years. A thorough impact assessment of acoustic sources requires both accurate modeling of the source and radiated sound field, and a biological assessment.
openaire   +2 more sources

Enhancing Marine Topography Mapping: A Geometrically Optimized Algorithm for Multibeam Echosounder Survey Efficiency and Accuracy

Applied Sciences
This research introduces a new multibeam survey line model that optimizes geometric relationships to improve the efficiency and accuracy of surveys over complex seabed topographies.
Yi Lu, Juangui Xu, Yubin Zhong, Hongbin Lin   +3 more
doaj   +1 more source

Detection of Submerged Heritage: Application of an Unmanned Surface Vehicle Equipped With a High-Resolution Multibeam Echosounder

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The recent availability of unmanned surface vehicles (USVs) equipped with precise positioning systems and multibeam echosounders enables high-resolution bathymetric surveys, yet their application in submerged heritage research remains limited. This study
Rocio Lopez-Juanes, Simon Pena-Villasenin, Manes Fernandez-Cabanas, Mariluz Gil-Docampo   +3 more
doaj   +1 more source

Australian compilation of seismic-derived bathymetry

Scientific Data
This article presents a national seismic-derived bathymetric compilation based on the integration of 253 3D seismic surveys. Individual surveys were combined to produce four regional compilations covering an area of 267,000 km2, with a spatial resolution
Ulysse Lebrec, Victorien Paumard, Juliette Denudt, Catherine Du Réau, Simon C. Lang, Julien Bailleul   +5 more
doaj   +1 more source