Results 91 to 100 of about 6,191 (207)

Using seafloor echo-integrated backscatter for monitoring single beam echosounder calibration

Frontiers in Remote Sensing
IntroductionIn recent years, methods have been developed to calibrate seafloor backscatter measurements from hydrographic multibeam echosounders. Some of these methods involve the use of well-characterized reference areas that consistently exhibit stable
N. Le Bouffant, L. Berger, R. Fezzani
doaj   +1 more source

Identifikasi Nilai Amplitudo Sedimen Dasar Laut Pada Perairan Dangkal Menggunakan Multibeam Echosounder [PDF]

, 2012
Multibeam echosounder memiliki kemampuan dalam merekam amplitudo dari gelombang suara yang kembali. Amplitudo yang kembali tersebut telah berkurang karena interaksi dengan medium air laut dan sedimen dasar laut. Analisis terhadap amplitudo dari gelombang
Awaluddin, M. (Moehammad), Sabri, L. (LM), Saputra, L. R. (Lufti)   +2 more
core  

Automatic active acoustic target detection in turbulent aquatic environments [PDF]

, 2017
This work is funded by the Environment and Food Security theme Ph.D. studentship from the University of Aberdeen, the Natural Environment Research Council (NERC) and Department for Environment, Food, and Rural Affairs (Defra grant NE/J004308/1), and the ...
Barange, Baussant, Benjamins, Benoit-Bird, Bertrand, Burgos, Cazelles, Crawford, Deane, Donoho, Foote, Horne, Kang, Kloser, Korneliussen, Lavery, Lavery, Logerwell, Lu, Melvin, Moum, Nero, Ona, Otsu, Petrou, Plueddemann, Reid, Sato, Scott, Simmonds, Thomson, Thorne, Torrence, Trevorrow, Viehman, Viehman, Waggitt, Williamson, Williamson   +38 more
core   +1 more source

Detection of Small Bottom Objects From Multibeam Echosounder Data

Annual of Navigation, 2018
AbstractMultibeam Echo Sounder Systems (MBES) shallow water surveys provide capability not only acquiring bathymetric data useful for determining isobaths and mapping features on the seafloor which may be a hazard to navigation. They also allow detection of objects smaller or deeper than those required for the safety of seafaring and International ...
Dominik Iwen, Mariusz Wąż
openaire   +1 more source

Characterizing an Incipient Fault System: Insights From the Morphometric Analysis of the North‐South Faults (Alboran Sea)

Tectonics, Volume 44, Issue 10, October 2025.
Abstract Investigating the dynamic evolution of active fault systems is fundamental for deciphering regional tectonics and assessing seismic risk, particularly in offshore regions where direct observation is challenging. Our ultra‐high‐resolution bathymetric study of the North‐South Faults (NSF) documents an incipient and dynamically evolving left ...
A. Canari, H. Perea, S. Martínez‐Loriente   +2 more
wiley   +1 more source

U.S. Law of the Sea Cruise to Map the Foot of the Slope and 2500-m Isobath of the Florida Escarpment and Sigsbee Escarpment, Northern Gulf of Mexico Continental Marg. Cruise Report [PDF]

, 2007
U.S. Law of the Sea cruise to map the foot of the slope and 2500-m isobath of the Florida Escarpment and Sigsbee Escarpment, northern Gulf of Mexico continental margin CRUISE NR07-1 Mobile, AL to Mobile, AL June 21, 2007 to July 8 ...
Gardner, James V.
core   +1 more source

Novel Use of Environmental DNA Metabarcoding to Assess the Impacts of a Large‐Scale Seismic Survey on Tropical Fish Communities

Environmental DNA, Volume 7, Issue 5, September–October 2025.
eDNA was used to assess whether there had been any impacts to an offshore demersal fish community. No major changes due to the seismic experiment were observed. When used in concert with baited remote underwater camera stations (BRUVS), a more comprehensive assessment of the fish community was obtained.
Conrad W. Speed, Laurence Dugal, Mark G. Meekan, Matthew J. Birt, Miles Parsons, Dianne McLean, Brett Taylor, Robert D. McCauley, Jayson M. Semmens, Stephen J. Newman, Rebecca Fisher, Luke Thomas   +11 more
wiley   +1 more source

Real-time Monitoring of Uncertainty due to Refraction in Multibeam Echo Sounding [PDF]

, 2010
A software toolkit has been developed to objectively monitor uncertainty due to refraction in multibeam echosounding, specifically mapping systems that employ underway sound speed profiling hardware.
Beaudoin, Jonathan
core   +1 more source

Control of the repeatability of high frequency multibeam echosounder backscatter by using natural reference areas [PDF]

, 2018
The increased use of backscatter measurements in time series for environmental monitoring necessitates the comparability of individual results. With the current lack of pre-calibrated multibeam echosounder systems for absolute backscatter measurement, a ...
Augustin, Jean-Marie, Degrendele, Koen, Le Bas, Tim, Loyer, Sophie, Lurton, Xavier, Roche, Marc, Vrignaud, Christophe   +6 more
core   +4 more sources

U.S. Law of the Sea Cruise to Complete the Mapping of Necker Ridge, Central Pacific Ocean [PDF]

, 2011
U.S. Law of the Sea Cruise to Complete the Mapping of Necker Ridge, Central Pacific Ocean CRUISE KM1121 July 31, to August 10, 2011 Honolulu, HI to Honolulu ...
Calder, Brian R., Gardner, James V.
core   +2 more sources