Results 61 to 70 of about 34,913 (244)

MSM34/2 raw data of EM122 multibeam echosounder (bathymetry, beam time series & water column)

, 2018
Multibeam echosounder (MBES) data recorded during RV MARIA S. MERIAN cruise MSM34-2 between 27.12.2013 and 18.01.2014 in the Black Sea. The main objective of this cruise was the mapping and imaging of the gas hydrate distribution and gas accumulations as
Bialas, Jörg, Gross, Felix
core   +1 more source

Automated Detection of Seafloor Gas Seeps in Multibeam Echosounder Data With an Attention-Guided Convolutional Neural Network

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Seafloor gas seeps are a globally distributed feature that hold substantial implications for ocean carbon cycling, chemosynthetic ecology, energy production, and geohazards.
Sultan Mohammad Manjur, V. Senyurek, R. Kalski, Surabhi Gupta, Adam Skarke, A. C. Gurbuz   +5 more
semanticscholar   +1 more source

A Semi-Automated, Hybrid GIS-AI Approach to Seabed Boulder Detection Using High Resolution Multibeam Echosounder

Remote Sensing
The detection of seabed boulders is a critical step in mitigating geological hazards during the planning and construction of offshore wind energy infrastructure, as well as in supporting benthic ecological and palaeoglaciological studies.
E. Downing, Luke O'Reilly, Jan Majcher, Evan O'Mahony, Jared L. Peters   +4 more
semanticscholar   +1 more source

Fish Monitoring in Aquaculture Using Multibeam Echosounders and Machine Learning

IEEE Access, 2023
Offshore salmon aquaculture is a growing industry that faces challenges such as sea lice infestations and varying environmental conditions, necessitating the development of new monitoring systems to improve fish welfare and sustainability. In this paper, we propose and test a machine learning based method for underwater detection and localisation using
Jóhannus Kristmundsson, Øystein Patursson, John R. Potter, Qin Xin 0001   +3 more
openaire   +3 more sources

Angular Range Analysis (ARA) and K-Means Clustering of Multibeam Echosounder Data for Determining Sediment Type

Ilmu Kelautan, 2016
Backscatter value was a key to determine seabed characteristic. Level of intensity or backscatter informed through seabed type. One approach was use to analyze seabed type based on the value of backscatter was Angular Range Analysis (ARA).
Fahrulian Fahrulian, Henry M Manik, Indra Jaya, Udrekh Udrekh   +3 more
doaj   +1 more source

Integrating multibeam echosounder water‐column data into benthic habitat mapping

Limnology and Oceanography, 2021
Kelp forests worldwide are under increasing pressure from anthropogenic impacts including kelp harvesting, pollution, and higher sea surface temperatures due to climate change.
Peter Porskamp, A. Schimel, M. Young, A. Rattray, Y. Ladroit, D. Ierodiaconou   +5 more
semanticscholar   +1 more source

Findings from a Combined Subsea LiDAR and Multibeam Survey at Kingston Reef, Western Australia

Remote Sensing, 2020
Light Detection and Ranging (LiDAR), a comparatively new technology in the field of underwater surveying, has principally been used for taking precise measurement of undersea structures in the oil and gas industry.
Simon Collings, Tara J. Martin, Emili Hernandez, Stuart Edwards, Andrew Filisetti, Gavin Catt, Andreas Marouchos, Matt Boyd, Carl Embry   +8 more
doaj   +1 more source

Integrating multibeam echosounder water-column data into benthic habitat mapping

, 2023
Integrating multibeam echosounder water-column data into benthic habitat ...
Mary Young (13083465), A C G Schimel (13316091), Alex Rattray (13058940), Daniel Ierodiaconou (13074240), P Porskamp (13316088), Y Ladroit (11715128)   +5 more
core  

An aided navigation post processing filter for detailed seabed mapping UUVs [PDF]

Modeling, Identification and Control, 1999
HUGIN is an untethered underwater vehicle (UUV) intended for bathymetric data collection for detailed seabed surveying. The HUGIN sensor suite, consisting of standard commercially available navigation sensors and a multibeam echosounder, is briefly ...
Kenneth Gade, Bjørn Jalving
doaj   +1 more source

Acoustic Seafloor Classification Using the Weyl Transform of Multibeam Echosounder Backscatter Mosaic

Remote Sensing, 2021
The use of multibeam echosounder systems (MBES) for detailed seafloor mapping is increasing at a fast pace. Due to their design, enabling continuous high-density measurements and the coregistration of seafloor’s depth and reflectivity, MBES has become a ...
Ting Zhao, Giacomo O. A. Montereale Gavazzi, Srdan Lazendic, Yuxin Zhao, A. Pižurica   +4 more
semanticscholar   +1 more source