Results 31 to 40 of about 4,601 (177)

Discovering the Fine-Scale Morphology of the Gulf of Cádiz: An Underwater Imaging Analysis

Journal of Marine Science and Engineering, 2022
The dense and deep water flow that leaves the Mediterranean Sea to the Atlantic flows through the upper and middle slope of the Gulf of Cádiz as a powerful bottom stream that models and interacts with bathymetry.
Raúl Jiménez-Romero, Luis Miguel Fernández-Salas, Desirée Palomino, Ricardo Félix Sánchez-Leal, Yolanda Vila   +4 more
doaj   +1 more source

Gridded bathymetry from swath sonar multibeam SeaBeam-1050 data of the Activ_2014 cruise, Timmiarmiut area

, 2016
Gridded bathymetry from swath sonar multibeam SeaBeam-1050 data of the Activ_2014 cruise, Timmiarmiut ...
Reimer Wilhelm Weinrebe (7971302), Kjeldsen, Kristian Kjellerup, Weinrebe, Reimer Wilhelm, Kristian Kjellerup Kjeldsen (7848966)   +3 more
core   +1 more source

Multibeam bathymetry raw data (Kongsberg EM 122 entire dataset) of RV METEOR during cruise M86/1c

, 2021
Multibeam bathymetry raw data using the ship's own Kongsberg EM 122 multibeam echosounder was almost continuously recorded during RV METEOR cruise M86/1c. Data were recorded on 11 days between 2011-12-12 and 2011-12-23.
dos Santos Ferreira, Christian, Quadfasel, Detlef   +1 more
core   +1 more source

Bathymetry and Geomorphology of Shelikof Strait and the Western Gulf of Alaska

Geosciences, 2019
We defined the bathymetry of Shelikof Strait and the western Gulf of Alaska (WGOA) from the edges of the land masses down to about 7000 m deep in the Aleutian Trench.
Mark Zimmermann, Megan M. Prescott, Peter J. Haeussler   +2 more
doaj   +1 more source

Sources and Impacts of Bottom Slope Uncertainty on Estimation of Seafloor Backscatter from Swath Sonars

Geosciences, 2019
Seafloor backscatter data from multibeam echosounders are now widely used in seafloor characterization studies. Accurate and repeatable measurements are essential for advancing the success of these techniques.
Mashkoor Malik
doaj   +1 more source

A Crossover Adjustment Method Considering the Beam Incident Angle for a Multibeam Bathymetric Survey Based on USV Swarms

Journal of Marine Science and Engineering
Multibeam echosounder systems (MBESs) are widely used in unmanned surface vehicle swarms (USVs) to perform various marine bathymetry surveys because of their excellent performance. To address the challenges of systematic error superposition and edge beam
Qiang Yuan, Weiming Xu, Shaohua Jin, Tong Sun   +3 more
doaj   +1 more source

Improved Arctic Ocean Bathymetry Derived From DTU17 Gravity Model

Earth and Space Science, 2019
The existing bathymetry map of the Arctic is a compilation of ship soundings and digitized contours. Due to the presence of all‐year sea ice, costly operations and political restrictions, dense and full coverage of the Arctic is not possible, leaving ...
Adili Abulaitijiang, Ole Baltazar Andersen, David Sandwell   +2 more
doaj   +1 more source

A novel approach for in situ benthic habitat characterization

Limnology and Oceanography: Methods, EarlyView.
Abstract Habitat heterogeneity is a key driver of temporal and spatial variability of subtidal marine benthic biodiversity. However, this makes it a challenging environment in which to measure and quantify the factors driving biodiversity in a consistent manner.
Ryan J. W. Mathews, David K. A. Barnes, Simon A. Morley, Gareth Flint, Lloyd S. Peck   +4 more
wiley   +1 more source

Gravity inversion for sub-ice shelf bathymetry: strengths, limitations, and insights from synthetic modeling [PDF]

The Cryosphere
Sub-ice-shelf bathymetry strongly influences ice shelf stability by guiding melt-inducing water masses and through pinning points that resist the flow of the overriding ice.
M. D. Tankersley, M. D. Tankersley, M. D. Tankersley, H. Horgan, H. Horgan, H. Horgan, F. Caratori Tontini, K. Tinto   +7 more
doaj   +1 more source

Automated object detection based on YOLOv11 for monitoring benthic population dynamics: A new approach combining photogrammetry and open‐source GIS tools applied to sea cucumbers

Remote Sensing in Ecology and Conservation, EarlyView.
This research established a new object detection model based on YOLOv11 to recognise benthic organisms, specifically sea cucumbers, by utilising high‐resolution photogrammetric‐based orthomosaics acquired along infralittoral Mediterranean Sea beds. The model demonstrated impressive performance metrics and, when combined with the Deepness plugin for the
Gian Mario Sangiovanni, Giovanna Jona Lasinio, Daniele Poggio, Gianluca Mastrantonio, Alessio Pollice, Arnold Rakaj, Midhun Mohan, Stefano Moro, Edoardo Casoli, Daniele Ventura   +9 more
wiley   +1 more source