Results 61 to 70 of about 41,703 (217)

Geomorphology and substrate of Galway Bay, Western Ireland

Journal of Maps, 2020
A combination of multibeam bathymetry and backscatter, LiDAR altimetry and bathymetry, satellite images, and hydrodynamic model outputs were used to map the seafloor and coastline of Galway Bay (western Ireland).
Denise McCullagh, Sara Benetti, Ruth Plets, Fabio Sacchetti, Eimear O’Keeffe, Kieran Lyons   +5 more
doaj   +1 more source

Measuring Centimeter-Scale Sand Ripples Using Multibeam Echosounder Backscatter Data from the Brown Bank Area of the Dutch Continental Shelf

Geosciences, 2020
Backscatter data from multibeam echosounders are commonly used to classify seafloor sediment composition. Previously, it was found that the survey azimuth affects backscatter when small organized seafloor structures, such as sand ripples, are present ...
Leo Koop, Karin J. van der Reijden, Sebastiaan Mestdagh, Tom Ysebaert, Laura L. Govers, Han Olff, Peter M. J. Herman, Mirjam Snellen, Dick G. Simons   +8 more
doaj   +1 more source

River Sand and Gravel Mining: Global Drivers, Impacts, and Pathways for Sustainable Management

Reviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract River sand and gravel are mined worldwide at volumes that now rival their natural replenishment, yet quantitative knowledge of this mining activity and its consequences lags far behind many other global environmental pressures. We synthesize 411 peer‐reviewed studies published since 1974 within a new Driver‐to‐Management Pathway for ...
Edward Park, Christopher R. Hackney, Dung Duc Tran, Mette Bendixen, Jim Best, Kai Wan Yuen, Hannah Runeckles, Md Sadiul Alam Chyon, Karl Kästner, Sonu Kumar, Halinishi Yusuf, Vanessa Lamb, Lars L. Iversen, Aelis Spiller, Rajiv Sinha, Eduardo Francisco da Silva, Enner Alcantara, Chengcheng Wu, Chengpeng Lu, Chu Jian, Jingyu Wang, Nguyen Duc Thien, Lian Feng, Priyank Pravin Patel, Jiachun Huang, Adam D. Switzer   +25 more
wiley   +1 more source

Multibeam bathymetry raw data (Kongsberg EM 122 entire dataset) of RV METEOR during cruise M162

, 2021
Multibeam bathymetry raw data was recorded in the North Atlantic during cruise M162 that took place between 2020-03-06 and 2020-04-10.
Terrinha, Pedro, Hensen, Christian, Wölfl, Anne-Cathrin   +2 more
core   +1 more source

Mapping Submarine Sand Wave Bathymetry from Sentinel-2 Texture Using a Spatial-Sequential Deep Learning Model

Remote Sensing
Submarine sand waves are widespread on shallow continental shelves. Their complex morphology and potential mobility create challenges for engineering surveys, navigation safety, and seabed stability assessment.
Chao Zhu, Chunfeng Li, Jieqiong Zhou, Wenyan Zhang, Mingwei Wang, Dineng Zhao, Xiaoming Qin, Peter Arlinghaus, Ziyin Wu   +8 more
doaj   +1 more source

Spatial Prediction of Coastal Bathymetry Based on Multispectral Satellite Imagery and Multibeam Data [PDF]

Remote Sensing, 2015
The coastal shallow water zone can be a challenging and costly environment in which to acquire bathymetry and other oceanographic data using traditional survey methods. Much of the coastal shallow water zone worldwide remains unmapped using recent techniques and is, therefore, poorly understood.
Xavier Monteys, Paul Harris 0002, Silvia Caloca, Conor Cahalane   +3 more
openaire   +3 more sources

Infragravity Waves Across a Steep‐Sloping Rough Rocky Seabed on the Inner Shelf

Journal of Geophysical Research: Oceans, Volume 131, Issue 9, September 2026.
Abstract Observations of infragravity (IG) waves were conducted from June to October 2023 along the rocky shores off China Rock, CA, on the inner shelf at depths of 8–13 m. The study examines inner‐shelf IG wave dynamics over rough, steep rocky shores and compares them with those over smoother, gentler sandy shores and coral reefs. IG energy correlated
Jamie MacMahan, Falk Feddersen, Ad J. H. M. Reniers, Edward B. Thornton, Olavo B. Marques   +4 more
wiley   +1 more source

Swath sonar multibeam EM710 bathymetry during HEINCKE cruise HE387 with links to raw data files of bathymetry and water column information

, 2013
Swath sonar multibeam EM710 bathymetry during HEINCKE cruise HE387 with links to raw data files of bathymetry and water column ...
Heiko Sahling (6975860), Sahling, Heiko
core   +1 more source

Characterizing the Distribution of Nepheloid Layers and Their Response to Hydrodynamics in the NE Rockall Trough, NE Atlantic Ocean

Journal of Geophysical Research: Oceans, Volume 131, Issue 9, September 2026.
Abstract Suspended and slow‐sinking particles, especially those concentrated within nepheloid layers, can act as pivotal mediators of oceanic carbon transport and benthic‐pelagic coupling. However, identifying nepheloid layers and distinguishing their composition (i.e., inorganic particles, phytoplankton, zooplankton, and fish) using only acoustic ...
Ling Wang, Florian Lüskow, Tilmann Schwenk, Alice Lefebvre, Morten Iversen, Meng Liu, Andrew Wheeler, Nikolas Römer‐Stange, Bingbing Wei, Elda Miramontes   +9 more
wiley   +1 more source

Using wavelet techniques for multibeam sonar bathymetry data compression [PDF]

, 2010
Multibeam sonars are widely used in applications like high resolution bathymetry measurements or underwater object imaging. One of the significant problems in multibeam sensing of the marine environment is large amount of data which must be transmitted ...
Chybicki, A., Łubniewski, Z., Moszyński, M.   +2 more
core