Results 81 to 90 of about 50,747 (268)

Numerical modelling of mud volcanoes and their flows using constraints from the Gulf of Cadiz [PDF]

, 2003
It is estimated that the total number of submarine mud volcanoes is between 1000 and 100 000. Because many are associated with greenhouse gases, such as methane, it is argued that the global flux of these gases to the atmosphere from the world’s ...
Blankenship, Cronin, Didden, Flynch, Gardner, Hovland, Lance, Limonov, Maldonado, Maldonado, Milkov, Rodero, Smith, Srivastava, Vogt   +14 more
core   +2 more sources

Post‐Fire Sediment Yield From a Central California Watershed: Field Measurements and Validation of the WEPP Model

Earth and Space Science, Volume 11, Issue 7, July 2024.
Abstract In a warming climate, an intensifying fire regime and higher likelihood of extreme rain are expected to increase watershed sediment yield in many regions. Understanding regional variability in landscape response to fire and post‐fire rainfall is essential for managing water resources and infrastructure.
Amy E. East, Joshua B. Logan, Helen W. Dow, Douglas P. Smith, Pat Iampietro, Jonathan A. Warrick, Thomas D. Lorenson, Leticia Hallas, Benjamin Kozlowicz   +8 more
wiley   +1 more source

Small object detection in side-scan sonar images based on SOCA-YOLO and image restoration

Frontiers in Marine Science
Although side-scan sonar can provide wide and high-resolution views of submarine terrain and objects, it suffers from severe interference due to complex environmental noise, variations in sonar configuration (such as frequency, beam pattern, etc.), and ...
Xiaodong Cui, Jiale Zhang, Lingling Zhang, Qunfei Zhang, Jing Han   +4 more
doaj   +1 more source

Investigation of bottom fishing impacts on benthic structure using multibeam sonar, sidescan and video [PDF]

, 2005
Bottom fishing gear is known to alter benthic structure, however changes in the shape of the sea floor are often too subtle to be detected by acoustic remote sensing.
Malik, Mashkoor A., Mayer, Larry A.
core   +1 more source

Location and reef size drive oyster reef restoration success

Restoration Ecology, Volume 32, Issue 5, July 2024.
Optimizing habitat restoration success requires understanding how restoration location and design enhance the persistence and function of a restored habitat. Particular attention to the configuration of structure and its interaction with landscape‐scale processes is critical for enhancing the habitat value of restored areas.
Olivia N. Caretti, David B. Eggleston, Brandon J. Puckett, DelWayne R. Bohnenstiehl   +3 more
wiley   +1 more source

Linking Sidescan Sonar Backscatter Intensity to Seafloor Sediment Grain Size Fractions: Insight from Dongluo Island

Journal of Marine Science and Engineering
Accurate characterization of seafloor sediment properties is critical for marine engineering design, resource assessment, and environmental management. Sidescan sonar offers efficient wide-area mapping capabilities, yet establishing robust quantitative ...
Songyang Ma, Bin Li, Peng Wan, Chengfu Wei, Zhijian Chen, Ruikeng Li, Zhenqiang Zhao, Chi Chen, Jiangping Yang, Jun Tu, Mingming Wen   +10 more
doaj   +1 more source

Automated Stone Detection on Side-Scan Sonar Mosaics Using Haar-Like Features

Geosciences, 2019
Stony grounds form important habitats in the marine environment, especially for sessile benthic organisms. For the purpose of habitat demarcation and monitoring, knowledge of the position and abundance of individual stones is necessary.
Rune Michaelis, H. Christian Hass, Svenja Papenmeier, Karen H. Wiltshire   +3 more
doaj   +1 more source

Acoustic and visual characterisation of methane-rich seabed seeps at Omakere Ridge on the Hikurangi Margin, New Zealand [PDF]

, 2010
Six active methane seeps and one cold-water reef that may represent a relict seep were mapped at Omakere Ridge on New Zealand's Hikurangi Margin during cruises SO191 and TAN0616. Hydroacoustic flares, interpreted to be bubbles of methane rising through
Bowen, David A., Greinert, Jens, Jones, Andrew T., Klaucke, Ingo, Netzeband, Gesa, Petersen, Carl Jörg, Weinrebe, Reimer Wilhelm   +6 more
core   +1 more source

Performance and accuracy of cross‐section tracking methods for hydromorphological habitat assessment in wadable rivers with sparse canopy conditions

River Research and Applications, Volume 40, Issue 4, Page 544-558, May 2024.
Abstract This article investigates the performance and accuracy of continuous Real‐Time Kinematic (RTK) Global Navigation Satellite System (GNSS) position tracking for hydromorphological surveys, based on a comprehensive river restoration monitoring campaign.
Robin Schroff, Giovanni De Cesare, Paolo Perona   +2 more
wiley   +1 more source

Side-Scan Sonar Image Augmentation Method Based on CC-WGAN

Applied Sciences
The utilization of deep learning algorithms for side-scan sonar target detection is impeded by the restricted quantity and representativeness of side-scan sonar (SSS) samples.
Junhui Zhu, Houpu Li, Ping Qing, Jiaxin Hou, Ye Peng   +4 more
doaj   +1 more source