Results 51 to 60 of about 50,747 (268)
Limnology and Oceanography, Volume 70, Issue 2, Page 377-392, February 2025.ABSTRACT Marine environments are highly heterogeneous, varying across scales of a few meters to entire ocean basins. Understanding the relationship between environmental variability and species distribution is essential for area‐based management and conservation.
Fanny Girard +11 more
wiley +1 more source
Understanding the marine environment : seabed habitat investigations of the Dogger Bank offshore draft SAC [PDF]
, 2009 This report details work carried out by the Centre for Environment, Fisheries and Aquaculture Science (Cefas), British Geological Surveys (BGS) and Envision Ltd. for the Joint Nature Conservation Committee (JNCC).
Diesing, Markus +7 more
core
Land Degradation &Development, Volume 36, Issue 1, Page 28-38, 15 January 2025.ABSTRACT Sedimentation in small water reservoirs poses a critical challenge with significant environmental, economic, and social implications. To address this issue, this study will employ three measurement techniques—GNSS RTK Trimble R8s, Echolot HDS LIVE 7 with Active Imaging 3‐in‐1, and the Mivardi Carp Scout bait boat—to assess sediment levels in ...
Stanislav Paseka
wiley +1 more source
A Mapping Method Fusing Forward-Looking Sonar and Side-Scan Sonar
Journal of Marine Science and EngineeringIn modern ocean exploration, forward-looking sonar (FLS) provides real-time 2D imaging of the seabed ahead, but its detection range is relatively limited.
Hong Liu +3 more
doaj +1 more source
JGEET: Journal of Geoscience, Engineering, Environment and Technology, 2017 Marine seismic reflection data have been collected for decades and since the mid-to late- 1980s much of this data is positioned relatively accurately.
Muhammad Zainuddin Lubis +3 more
doaj +1 more source
Geometric and Radiometric Correction of Multibeam Backscatter Derived from Reson 8101 Systems [PDF]
, 2002 A common by-product of multibeam surveys is a measure of the backscattered acoustic intensity from the seafloor. These data are of immense interest to geologists and geoscientists since maps of the acoustic backscatter strength can be used to infer ...
Beaudoin, Jonathan +3 more
core +1 more source
Fault and magmatic interaction within Iceland's western rift over the last 9kyr [PDF]
, 2003 We present high-resolution 'Chirp' sub-bottom profiler data from Thingvallavatn, a lake in Iceland's western rift zone. These data are combined with stratigraphic constraints from sediment cores to show that movement on normal faults since 9 ka are ...
A. I. Best +13 more
core +1 more source
Latent Space Metric Learning For Sidescan Sonar Place Recognition
IEEE/OES Autonomous Underwater Vehicles, 2020 Place recognition is an essential part of a Simultaneous Localization and Mapping, SLAM, framework. By recognizing that the AUV has returned to a previously visited place, constraints on the trajectory can be imposed leading to a reduction in navigation ...
Max Larsson, Nils Bore, J. Folkesson
semanticscholar +1 more source
Post‐Fire Sediment Yield From a Western Sierra Nevada Watershed Burned by the 2021 Caldor Fire
Earth and Space Science, Volume 12, Issue 1, January 2025.Abstract Watershed sediment yield commonly increases after wildfire, often causing negative impacts to downstream infrastructure and water resources. Post‐fire erosion is important to understand and quantify because it is increasingly placing water supplies, habitat, communities, and infrastructure at risk as fire regimes intensify in a warming climate.
Amy E. East +5 more
wiley +1 more source
Concurrent mapping and localization using sidescan sonar [PDF]
IEEE Journal of Oceanic Engineering, 2004 This paper describes and evaluates a concurrent mapping and localization (CML) algorithm suitable for localizing an autonomous underwater vehicle. The proposed CML algorithm uses a sidescan sonar to sense the environment. The returns from the sonar are used to detect landmarks in the vehicle's vicinity.
I. Tena Ruiz +3 more
openaire +1 more source