Results 211 to 220 of about 26,999 (267)
Bathymetric seabed mapping based on GIS-technology : extended abstract
, 2005 Nikiforov, S. +4 more
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2023
The map and underlying digital dataset provide national and regional-scale context for a wider variety of applications, including offshore industries, area-based environmental management, scientific research and public education. Australia’s Seabed Map is based on the revised AusBathyTopo 250m (Australia) 2023 grid (Beaman, 2023), the most ...
A., Leplastrier +3 more
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The map and underlying digital dataset provide national and regional-scale context for a wider variety of applications, including offshore industries, area-based environmental management, scientific research and public education. Australia’s Seabed Map is based on the revised AusBathyTopo 250m (Australia) 2023 grid (Beaman, 2023), the most ...
A., Leplastrier +3 more
openaire +1 more source
Seabed substrate mapping using MBES data
2023Seafloor mapping is essential for effective management and sustainable development of marine resources. Various attempts have been made to map the seafloor using single beam echo sounders, multi beam echo sounders, and side scan sonars. The purpose of this study is to map the sea floor using backscatter and bathymetry based on multi-beam echo sounders.
Sanghun Son +5 more
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Ultrasound in oceanography and seabed mapping
The Journal of the Acoustical Society of America, 2022The scientific achievements of Paul Langevin are numerous and far-reaching. In the 150th anniversary of his birth, we look at one of his early contributions, forged in the heat and pressure of World War I. For most historians of science, Paul Langevin is the creator of sonars, and this opened a totally new window onto our world.
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Underwater video mosaicing for seabed mapping
Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101), 2002This paper presents improved techniques and applications in mosaicing of underwater video images. The applications are of use to many marine scientists. High resolution seabed maps are created. The improvements in the processing relate to the removal of interframe variability and lighting, speed up of the mosaicing process and improved accuracy in the ...
Y. Rzhanov, L.M. Linnett, R. Forbes
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Collaborative Seabed-Habitat Mapping
2015This chapter discusses the uncertainties associated with sediment data, which are a commonly neglected obstacle in collaborative seabed-habitat mapping, complicating harmonization. Standardization of these data, although an important prerequisite in the harmonization of surrogate-based habitat maps, is not enough to achieve full map uniformity. Through
Sytze van Heteren, Vera Van Lancker
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Constructing and Mapping a Seabed DTM
2020A digital terrain model (DTM) is the basis for displaying the seabed. Methods of constructing a seabed DTM and the relevant submarine topographic and geomorphologic mapping are discussed.
Ziyin Wu, Fanlin Yang, Yong Tang
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Regional seabed backscatter mapping using multiple frequencies
The Journal of the Acoustical Society of America, 2017The frequency dependence of seabed backscatter has previously been assessed at static sites. While dependencies have been identified, the restricted range of seabed types and issues of absolute calibration have limited inferences. Until recently seabed backscatter measurements from underway mapping sonars (sidescans and multibeams) have predominantly ...
John E. Hughes Clarke +4 more
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