Results 31 to 40 of about 346 (129)
Mapping the Seabed and Shallow Subsurface with Multi-Frequency Multibeam Echosounders [PDF]
Multi-frequency multibeam backscatter (BS) has indicated, in particular for fine sediments, the potential for increasing the discrimination between different seabed environments. Fine sediments are expected to have a varying signal penetration within the frequency range of modern multibeam echosounders (MBESs).
Timo C. Gaida +3 more
openaire +3 more sources
In the world of seafloor mapping, the ability to explore and experiment with a dataset in its raw and processed forms is critical. Kluster is an open-source multibeam data processing software package written in Python that enables this exploration ...
Eric Younkin, S. Harper Umfress
doaj +1 more source
KUANTIFIKASI KAPAL KARAM BERMATERIAL LOGAM MENGGUNAKAN MULTIBEAM ECHOSOUNDER
Penggunaan peralatan Multibeam Echosounder (MBES) untuk mendeteksi dasar perairan sudah dilakukan oleh beberapa peneliti, yang menghasilkan nilai intensitas dari objek penelitian.
Ari Wahyudi, Henry M. Manik, Indra Jaya
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]
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
Fish Monitoring in Aquaculture Using Multibeam Echosounders and Machine Learning
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 +3 more
openaire +3 more sources
Multibeam echosounders are widely used for 3D bathymetric mapping, and increasingly for water column studies. However, they rapidly collect huge volumes of data, which poses a challenge for water column data processing that is often still manual and time-
Annalisa Minelli +5 more
doaj +1 more source
Klasifikasi Gelembung Gas Menggunakan Multibeam Echosounder dan Machine Learning
The urgency of detecting gas bubbles in the water column is crucial in various fields, ranging from environmental monitoring to detecting underwater gas leaks. One method that can be used to detect gas bubbles is the Multibeam Echosounder.
Mochamad Rafif Rabbani +2 more
doaj +1 more source
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 +3 more
doaj +1 more source
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 +9 more
wiley +1 more source
Findings from a Combined Subsea LiDAR and Multibeam Survey at Kingston Reef, Western Australia
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 +8 more
doaj +1 more source

