Results 1 to 10 of about 2,586 (213)

Semi-Automated Data Processing and Semi-Supervised Machine Learning for the Detection and Classification of Water-Column Fish Schools and Gas Seeps with a Multibeam Echosounder [PDF]

open access: yesSensors, 2021
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   +2 more
exaly   +4 more sources

Physics-Based Modelling and Simulation of Multibeam Echosounder Perception for Autonomous Underwater Manipulation [PDF]

open access: yesFrontiers in Robotics and AI, 2021
One of the key distinguishing aspects of underwater manipulation tasks is the perception challenges of the ocean environment, including turbidity, backscatter, and lighting effects.
Woen-Sug Choi   +8 more
doaj   +2 more sources

Multibeam bathymetry data of the western part of the Romanche Trench (Equatorial Atlantic) [PDF]

open access: yesData in Brief, 2021
We present the multibeam bathymetry data of the western part of the Romanche Trench (Equatorial Atlantic) which is the main natural corridor that regulates inflow of Antarctic Bottom Water into the eastern basin of the Atlantic Ocean.
Mariia V. Kapustina   +2 more
doaj   +2 more sources

Swath bathymetry imagery of fjord-lakes from Québec-Labrador, eastern Canada [PDF]

open access: yesScientific Data
Accurate mapping of inland waters is essential for managing freshwater resources. This mapping is usually undertaken using single beam echosounder, which provides interpolated low-resolution bathymetric maps.
Léo Chassiot   +13 more
doaj   +2 more sources

Comparison between the Employment of a Multibeam Echosounder on an Unmanned Surface Vehicle and Traditional Photogrammetry as Techniques for Documentation and Monitoring of Shallow-Water Cultural Heritage Sites: A Case Study in the Bay of Algeciras

open access: yesJournal of Marine Science and Engineering, 2023
Over the last few years, due to various climatic, anthropogenic, and environmental factors, a large amount of submerged heritage has been unearthed and exposed to deterioration processes in the Bay of Algeciras.
Felipe Cerezo Andreo   +2 more
exaly   +3 more sources

High resolution optical and acoustic remote sensing datasets of the Puck Lagoon [PDF]

open access: yesScientific Data
The very shallow marine basin of Puck Lagoon in the southern Baltic Sea, on the Northern coast of Poland, hosts valuable benthic habitats and cultural heritage sites.
Łukasz Janowski   +11 more
doaj   +2 more sources

USING A MULTIBEAM ECHOSOUNDER TO MONITOR AN ARTIFICIAL REEF [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Artificial reefs (ARs) have become popular technological interventions in shallow water environments characterized by soft seabed for a wide number of purposes, from fisheries/environmental protection and enhancement to research and tourism.
A. N. Tassetti, S. Malaspina, G. Fabi
doaj   +5 more sources

Nearshore Benthic Habitat Mapping Based on Multi-Frequency, Multibeam Echosounder Data Using a Combined Object-Based Approach: A Case Study from the Rowy Site in the Southern Baltic Sea

open access: yesRemote Sensing, 2018
Recently, the rapid development of the seabed mapping industry has allowed researchers to collect hydroacoustic data in shallow, nearshore environments.
Łukasz Janowski   +2 more
exaly   +3 more sources

Australian compilation of seismic-derived bathymetry [PDF]

open access: yesScientific Data
This article presents a national seismic-derived bathymetric compilation based on the integration of 253 3D seismic surveys. Individual surveys were combined to produce four regional compilations covering an area of 267,000 km2, with a spatial resolution
Ulysse Lebrec   +5 more
doaj   +2 more sources

Bathymetric analysis using multifrequency multibeam echosounder

open access: yesGeodesy and Cartography
Making a nautical chart for safe navigation is a bathymetric survey’s primary goal. Multifrequency MBES have been developed over the last few decades, and their introduction has dramatically improved the efficiency, accuracy, and spatial resolution of ...
Khomsin   +3 more
doaj   +2 more sources

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