Results 11 to 20 of about 1,817,988 (202)

Seabed Sediment Classification Using Spatial Statistical Characteristics

Journal of Marine Science and Engineering, 2022
Conventional sediment classification methods based on Multibeam Echo System (MBES) data have low accuracy since the correlation between features and sediment has not been fully considered.
Quanyin Zhang, Jianhu Zhao, Shaobo Li, Hongmei Zhang   +3 more
doaj   +2 more sources

Seabed Protection Systems to prevent Scour from High-Speed Ships [PDF]

, 2010
This document reviews the scour protection systems required around port structures where these are to be used for the berthing of vessels powered by water jet systems.
Evans, G.
core   +7 more sources

A Novel Sub-Bottom Profiler Seabed Sediment Classification Method Based on BPNN With Biot-Stoll Model and Attenuation-Based Model

IEEE Access, 2021
The exploitation and utilization of seabed sediments provide vital significance in many fields. Recently, the classification of seabed sediments using sub-bottom profiler(SBP) data has become a research focus.
Mingke Li, Quan Tao, Guangchao Hou, Jingsheng Zhai   +3 more
doaj   +1 more source

Integrated Reconstruction of Late Quaternary Geomorphology and Sediment Dynamics of Prokljan Lake and Krka River Estuary, Croatia

Remote Sensing, 2023
The upper part of the Krka River estuary and Prokljan Lake are a specific example of a well-stratified estuarine environment in a submerged river canyon.
Ozren Hasan, Natalia Smrkulj, Slobodan Miko, Dea Brunović, Nikolina Ilijanić, Martina Šparica Miko   +5 more
doaj   +1 more source

A Novel Acoustic Sediment Classification Method Based on the K-Mdoids Algorithm Using Multibeam Echosounder Backscatter Intensity

Journal of Marine Science and Engineering, 2021
The modern discrimination of sediment is based on acoustic intensity (backscatter) information from high-resolution multibeam echo-sounder systems (MBES).
Xiaochen Yu, Jingsheng Zhai, Bo Zou, Qi Shao, Guangchao Hou   +4 more
doaj   +1 more source

Applying a Multi-Method Framework to Analyze the Multispectral Acoustic Response of the Seafloor

Frontiers in Remote Sensing, 2022
Improvements to acoustic seafloor mapping systems have motivated novel marine geological and benthic biological research. Multibeam echosounders (MBES) have become a mainstream tool for acoustic remote sensing of the seabed.
Pedro S. Menandro, Alex C. Bastos, Benjamin Misiuk, Craig J. Brown   +3 more
doaj   +1 more source

A Multispectral Bayesian Classification Method for Increased Acoustic Discrimination of Seabed Sediments Using Multi-Frequency Multibeam Backscatter Data

Geosciences, 2018
Multi-frequency backscatter data collected from multibeam echosounders (MBESs) is increasingly becoming available. The ability to collect data at multiple frequencies at the same time is expected to allow for better discrimination between seabed ...
Timo C. Gaida, Tengku Afrizal Tengku Ali, Mirjam Snellen, Alireza Amiri-Simkooei, Thaiënne A. G. P. van Dijk, Dick G. Simons   +5 more
doaj   +1 more source

Sediment Classification of Small-Size Seabed Acoustic Images Using Convolutional Neural Networks

IEEE Access, 2019
Seabed acoustic images are image data mosaics derived from seafloor acoustic backscattering intensity data, which is related to the type of sediment covering the seabed.
Xiaowen Luo, Xiaoming Qin, Ziyin Wu, Fanlin Yang, Mingwei Wang, Jihong Shang   +5 more
doaj   +1 more source

Validating deep learning seabed classification via acoustic similarity [PDF]

JASA Express Letters, 2021
While seabed characterization methods have often focused on estimating individual sediment parameters, deep learning suggests a class-based approach focusing on the overall acoustic effect.
David J. Forman, Tracianne B. Neilsen, David F. Van Komen, David P. Knobles   +3 more
doaj   +1 more source

Selecting Optimal Random Forest Predictive Models: A Case Study on Predicting the Spatial Distribution of Seabed Hardness. [PDF]

PLoS ONE, 2016
Spatially continuous predictions of seabed hardness are important baseline environmental information for sustainable management of Australia's marine jurisdiction.
Jin Li, Maggie Tran, Justy Siwabessy
doaj   +1 more source