Results 111 to 120 of about 6,191 (207)

Continental slope records indicate a grounded ice sheet margin during past glacials, South Shetland Trench, Antarctica [PDF]

, 2016
The South Shetland Trench (SST) is located around 100 km northwest, and parallel to, the South Shetland Islands, located between the Antarctic Peninsula and South America. Although a number of studies examining glacial history have been undertaken in the
Bradwell, Tom, Jamieson, Alan, O Cofaigh, Colm, Stewart, Heather, Stewart, Margaret   +4 more
core  

Enhancing Marine Topography Mapping: A Geometrically Optimized Algorithm for Multibeam Echosounder Survey Efficiency and Accuracy

Applied Sciences
This research introduces a new multibeam survey line model that optimizes geometric relationships to improve the efficiency and accuracy of surveys over complex seabed topographies.
Yi Lu, Juangui Xu, Yubin Zhong, Hongbin Lin   +3 more
doaj   +1 more source

Multi-algorithm Swath Consistency Detection for Multibeam Echosounder Data [PDF]

, 2007
It is unrealistic to expect that any single algorithm for pre-filtering Multibeam Echosounder data will be able to detect all of the “noise in such data all of the time. This paper therefore presents a scheme for fusing the results of many pre-filtering
Calder, Brian R.
core   +2 more sources

Modelling approaches to multibeam echosounders for sound field characterization

The Journal of the Acoustical Society of America
Concern over the impact of multibeam echosounders (MBES) on marine life has increased in recent years. A thorough impact assessment of acoustic sources requires both accurate modeling of the source and radiated sound field, and a biological assessment.
openaire   +2 more sources

A Web-Based Interactive Application to Simulate and Correct Distortion in Multibeam Sonars

Journal of Marine Science and Engineering
Multibeam sonars are advanced scientific tools for estimating fish school volume and density, using multiple beams to provide comprehensive size measurements of detected targets.
Guillermo Boyra, Udane Martinez
doaj   +1 more source

Widespread natural methane and oil leakage from sub-marine Arctic reservoirs. [PDF]

Nat Commun, 2023
Serov P, Mattingsdal R, Winsborrow M, Patton H, Andreassen K.   +4 more
europepmc   +1 more source

Seamless Online Distribution of Amundsen Multibeam Data [PDF]

, 2010
Since 2003, all underway multibeam and sub-bottom data from the Canadian Coast Guard Ship Amundsen has been posted online within approximately six months of the end of each cruise.
Beaudoin, Jonathan, Church, Ian, Hughes Clarke, John E., Muggah, James   +3 more
core   +1 more source

Advanced Detection and Classification of Kelp Habitats Using Multibeam Echosounder Water Column Point Cloud Data

Remote Sensing
Kelps are important habitat-forming species in shallow marine environments, providing critical habitat, structure, and productivity for temperate reef ecosystems worldwide.
Amy W. Nau, Vanessa Lucieer, Alexandre C. G. Schimel, Haris Kunnath, Yoann Ladroit, Tara Martin   +5 more
doaj   +1 more source

Grid models versus TIN : geometric accuracy of multibeam data processing [PDF]

, 2012
De Wulf, Alain, Constales, Denis, Nuttens, Timothy, Stal, Cornelis   +3 more
core   +2 more sources

On the Uncertainty of Archive Hydrographic Datasets [PDF]

, 2004
As the international hydrographic community continues to address the question of the irreducible uncertainty in modern surveys, we must ask how we do the same with archived Vertical Beam Echosounder (VBES) and leadline datasets. The ONR funded Strataform
Calder, Brian R.
core   +1 more source