Results 201 to 210 of about 46,415 (246)

Registration of Airborne LiDAR Bathymetry and Multibeam Echo Sounder Point Clouds

IEEE Geoscience and Remote Sensing Letters, 2021
Airborne light detection and ranging (LiDAR) bathymetry (ALB) and multibeam echo sounder (MBES) are both active remote sensing technologies that are complementary in terms of survey scope.
Xiankun Wang, Fanlin Yang, Hande Zhang, Dianpeng Su, Zhiliang Wang, Fangzheng Xu   +5 more
semanticscholar   +1 more source

Seamless splicing of digital multibeam bathymetry maps

2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS), 2014
For the problem of splicing two depth maps measured by multibeam bathymetry system. the seafloor is measured according to multibeam principle, and the data obtained are corrected by five factors. Further, Edge beams of two maps are trimmed to align. On this basis, depths of two maps are added using inverse distance weight(IDW) in their overlap region ...
Jia-cheng Yu, Xue-qiang Xu
openaire   +1 more source

Automated error detection in multibeam bathymetry data

Proceedings of OCEANS '93, 2002
For a variety of reasons, multibeam swath sounding systems produce errors that can seriously corrupt navigational charts. To address this problem, the authors have developed two algorithms for identifying subtle outlier errors in a variety of multibeam systems. The first algorithm treats the swath as a sequence of images.
S. Shaw, J. Arnold
openaire   +1 more source

Mass wasting on Alpha Ridge in the Arctic Ocean: new insights from multibeam bathymetry and sub-bottom profiler data

Special Publications, 2020
Marine geological and geophysical data from Alpha Ridge in the Arctic Ocean are sparse because of thick perennial sea-ice cover, which prevents access by most surface vessels.
K. Boggild, D. Mosher, P. Travaglini, C. Gebhardt, L. Mayer   +4 more
semanticscholar   +1 more source

Multibeam Bathymetry of the Håkon Mosby Mud Volcano

Marine Geophysical Researches, 2005
The Hakon Mosby Mud Volcano is a natural laboratory to study geological, geochemical, and ecological processes related to deep-water mud volcanism. High resolution bathymetry of the Hakon Mosby Mud Volcano was recorded during RV Polarstern expedition ARK XIX/3 utilizing the multibeam system Hydrosweep DS-2.
Andreas Beyer, Rike Rathlau, Hans Werner Schenke   +2 more
openaire   +1 more source

Data Processing Method of Multibeam Bathymetry Based on Sparse Weighted LS-SVM Machine Algorithm

IEEE Journal of Oceanic Engineering, 2020
In this paper, on the basis of the sparse weighted least-squares support vector machine (LS-SVM) algorithm, the sparse weighted LS-SVM surface is established and the corresponding steps are given.
Xianyuan Huang, Chenhu Huang, Guojun Zhai, Xiuping Lu, Guorui Xiao, Lifen Sui, Kailiang Deng   +6 more
semanticscholar   +1 more source

The Geisha Guyots: Multibeam bathymetry and morphometric interpretation

Journal of Geophysical Research: Solid Earth, 1984
Multibeam bathymetric charts (100 fm = 183 m contour interval) are presented and analyzed for the ∼1100‐km‐long, 120° trending Geisha chain of eight guyots and at least 13 other seamounts (>1 km height) in the northwest Pacific; these guyots are compared with 23 others in the North Pacific.
Peter R. Vogt, N. Christian Smoot
openaire   +1 more source

Multibeam bathymetry of glaciated terrain off southwest Newfoundland

Marine Geology, 1997
Abstract Inner St. George's Bay, Newfoundland, was mapped in 1988 using a suite of conventional geophysical and sampling tools. The Quaternary deposits, sea-level history, and Holocene littoral sediments were described in a series of papers. In 1995, part of the previously mapped area was imaged using a multibeam mapping system.
John Shaw, Robert C. Courtney
openaire   +1 more source

Multibeam Bathymetry and Slope Stability of Isvika Bay, Murchisonfjorden, Nordaustlandet

Marine Geodesy, 2012
A research expedition to the polar region of Murchisonfjorden (Nordaustlandet, Svalbard) on the research vessel Horyzont II took place in August 2009. This paper presents results from an extensive bathymetric measurement campaign of the Isvika Bay, southern part of Murchisonfjorden.
Mateusz Moskalik, Tadeusz Pastusiak, Jaroslaw Tegowski   +2 more
openaire   +1 more source

Precise Multibeam Acoustic Bathymetry

Marine Geodesy, 1999
The maximum error in ocean depth measurement as specified by the International Hydrographic Organization is 1% for depth greater than 30m. Current acoustic multibeam bathymetric systems used for depth measurement are subject to errors from various sources which may significantly exceed this limit. The lack of sound speed profiles may be one significant
openaire   +1 more source