|
|
|
|
|
Hyungbeen Lee, Euna Yoon, Seungjong Lee and Jeonghoon Lee
This study was conducted to investigate the acoustic characteristics of largehead hairtails (Trichiurus japonicus) in the Southern Sea of South Korea from April 2022, using 18, 38, 70, 120, and 200 kHz split-beam echosounders. At two stations, juvenile (...
ver más
|
|
|
|
|
|
|
|
|
|
|
Tianji Gao, Jianfeng Tong, Minghua Xue, Zhenhong Zhu, Yue Qiu, Richard Kindong, Qiuyun Ma and Jun Li
Acoustic technology is an essential tool for detecting marine biological resources and has been widely used in sound-scattering layer (SSL) research. The North Equatorial Current (NEC) warm pool region of the Central and Western Pacific Ocean has a vast ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Quanyin Zhang, Jianhu Zhao, Shaobo Li and Hongmei Zhang
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. Moreover, their poor resistance to the residual error of MBES bac...
ver más
|
|
|
|
|
|
|
|
|
|
|
Xiaochen Yu, Jingsheng Zhai, Bo Zou, Qi Shao and Guangchao Hou
The modern discrimination of sediment is based on acoustic intensity (backscatter) information from high-resolution multibeam echo-sounder systems (MBES). The backscattering intensity, varying with the angle of incidence, reveals the characteristics of s...
ver más
|
|
|
|
|
|
|
|
|
|
|
Andi Xu and Xueen Chen
Internal solitary waves (ISWs) in the South China Sea (SCS) have received considerable attention. This paper reports on a strong ISW captured northeast of Dong-Sha Atoll on 22 May 2011 by shipboard Acoustic Doppler Current Profiler (ADCP), which had the ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Sante Francesco Rende, Alessandro Bosman, Rossella Di Mento, Fabio Bruno, Antonio Lagudi, Andrew D. Irving, Luigi Dattola, Luca Di Giambattista, Pasquale Lanera, Raffaele Proietti, Luca Parlagreco, Mascha Stroobant and Emilio Cellini
In this study, we present a framework for seagrass habitat mapping in shallow (5?50 m) and very shallow water (0?5 m) by combining acoustic, optical data and Object-based Image classification. The combination of satellite multispectral images-acquired fr...
ver más
|
|
|
|
|
|
|
|
|
|
|
Leo Koop, Karin J. van der Reijden, Sebastiaan Mestdagh, Tom Ysebaert, Laura L. Govers, Han Olff, Peter M. J. Herman, Mirjam Snellen and Dick G. Simons
Backscatter data from multibeam echosounders are commonly used to classify seafloor sediment composition. Previously, it was found that the survey azimuth affects backscatter when small organized seafloor structures, such as sand ripples, are present. Th...
ver más
|
|
|
|
|
|
|
|
|
|
|
Mischa Schönke, Lars Wiesenberg, Inken Schulze, Dennis Wilken, Alexander Darr, Svenja Papenmeier and Peter Feldens
Quantitative acoustic marine habitat mapping needs to consider the impact of macrobenthic organisms on backscatter data. However, the sensitivity of hydroacoustic systems to epibenthic life is poorly constrained. This study explores the impact of a benth...
ver más
|
|
|
|
|
|
|
|
|
|
|
Peter Feldens, Alexander Darr, Agata Feldens and Franz Tauber
Boulders provide ecologically important hard grounds in shelf seas, and form protected habitats under the European Habitats Directive. Boulders on the seafloor can usually be recognized in backscatter mosaics due to a characteristic pattern of high backs...
ver más
|
|
|
|
|
|
|
|
|
|
|
Leo Koop, Alireza Amiri-Simkooei, Karin J. van der Reijden, Sarah O?Flynn, Mirjam Snellen and Dick G. Simons
High resolution maps of sandy seafloors are valuable to understand seafloor dynamics, plan engineering projects, and create detailed benthic habitat maps. This paper presents multibeam echosounder backscatter classification results of the Brown Bank area...
ver más
|
|
|
|
|
|