Results 11 to 20 of about 12,061 (223)

High-resolution multibeam bathymetry of the northern Mid-Atlantic Ridge at 45–46° N: the Moytirra hydrothermal field

open access: yesJournal of Maps, 2021
This work presents a new high-resolution multibeam bathymetric map of a segment of active deep sea-floor spreading in the Atlantic Ocean, the northern Mid-Atlantic Ridge (MAR) at 45–46º N.
Luis Somoza   +21 more
doaj   +2 more sources

High-Precision Inversion of Shallow Bathymetry under Complex Hydrographic Conditions Using VGG19—A Case Study of the Taiwan Banks

open access: yesRemote Sensing, 2023
Shallow bathymetry is important for ocean exploration, and the development of high-precision bathymetry inversion methods, especially for shallow waters with poor quality, is a major research aim.
Jiaxin Cui   +6 more
doaj   +1 more source

A comparison of supervised classification methods for the prediction of substrate type using multibeam acoustic and legacy grain-size data. [PDF]

open access: yesPLoS ONE, 2014
Detailed seabed substrate maps are increasingly in demand for effective planning and management of marine ecosystems and resources. It has become common to use remotely sensed multibeam echosounder data in the form of bathymetry and acoustic backscatter ...
David Stephens, Markus Diesing
doaj   +1 more source

Predicted Mapping of Seabed Sediments Based on MBES Backscatter and Bathymetric Data: A Case Study in Joseph Bonaparte Gulf, Australia, Using Random Forest Decision Tree

open access: yesJournal of Marine Science and Engineering, 2021
Predictive mapping of seabed sediments based on multibeam bathymetric (BM), and backscatter (BS) data is effective for mapping the spatial distribution of the substrate.
Wei Xu   +3 more
doaj   +1 more source

Late Pleistocene glaciation and retreat of ice sheet on the shelf of the South Orkney Plateau, West Antarctica

open access: yesЛëд и снег, 2021
The research aims to provide insight into reconstruction of the Late Pleistocene glaciations and ice retreat that followed the Last Glacial Maximum. The study is based on multi-channel seismic profiling and multibeam survey conducted on the shelf during ...
G. L. Leitchenkov, E. A. Bazhenova
doaj   +1 more source

Band-Optimized Bidirectional LSTM Deep Learning Model for Bathymetry Inversion

open access: yesRemote Sensing, 2023
Shallow water bathymetry is of great significance in understanding, managing, and protecting coastal ecological environments. Many studies have shown that both empirical models and deep learning models can achieve promising results from satellite imagery
Xiaotao Xi   +3 more
doaj   +1 more source

Beyond bathymetry [PDF]

open access: yesHydrographische Nachrichten, 2014
Echo sounder systems represent powerful tools not only to determine the seafloor depth, but also to investigate the water column. The most prominent fields of hydro acoustic water column applications include fish shoal detection and biomass assessments, target detection for military purposes, oil and gas leakage detection, and suspension matter ...
Schneider von Deimling, Jens   +1 more
openaire   +2 more sources

Review : Bathymetry Mapping Using Underwater Acoustic Technology

open access: yesJGEET: Journal of Geoscience, Engineering, Environment and Technology, 2019
The bathymetry mapping using underwater acoustic technology very important in Indonesia waters. Bathymetry is the result of measuring the height of the seabed so that the bathymetric map provides information about the seabed, where this information can ...
Muhammad Zainuddin Lubis   +3 more
doaj   +1 more source

The first ultra-high resolution Digital Terrain Model of the shallow-water sector around Lipari Island (Aeolian Islands, Italy) [PDF]

open access: yes, 2015
Very high resolution bathymetric map obtained through multibeam echosounders data are crucial to generate accurate Digital Terrain Models from which the morphological setting of active volcanic areas can be analyzed in detail. Here we show and discuss
Anzidei, M   +5 more
core   +2 more sources

Development of method in precise multibeam acoustic bathymetry

open access: yesGeo-spatial Information Science, 2003
The sound ray tracing method can achieve higher accuracy in determining depths and plan positions with multibeam echo sounding system. In data processing, actual sound speed profile must be used in the method. However, the method is too complicated. In order to overcome the shortcoming, this paper presents a new method, the position correction method ...
Zhao Jianhu, Liu Jingnan
openaire   +1 more source

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