Results 121 to 130 of about 24,773 (308)

Suspended sediment dynamics above submerged compound sand waves observed during a tidal cycle [PDF]

, 2016
Detailed Acoustic Doppler Current Profiler (ADCP) data of the three-dimensional current-field, echo intensity, modulation of suspended sediment concentration (SSC), and related water level and wind velocity have been analyzed as a function of water depth
Hennings, Ingo, Herbers, Dagmar
core  

Interaction of internal waves with the seafloor on the Namibian shelf (SE Atlantic Ocean): Implications for seafloor geomorphology

Earth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.
Over geological timescales, internal waves play a significant role in shaping the seafloor morphology. They generate nepheloid layers, slope‐parallel channels and escarpments with erosional surfaces. Abstract The long‐term impact of internal waves on sedimentation and seafloor geomorphology remains poorly constrained.
Elda Miramontes, Claudia Wienberg, Tilmann Schwenk, Christian Mohn, Nadezhda Lagunova, Ling Wang, Paul Wintersteller, Jürgen Titschack, Victor Oki, Ulrike Hanz, Furu Mienis, Sabrina Köper, Maren Walter, Dierk Hebbeln   +13 more
wiley   +1 more source

Remobilisation of fine sediment from chalk stream gravel beds under flushing flows: A flume experiment

Earth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.
Through progressive flume experiments, this study demonstrated that increased bed shear stresses corresponded with increased cohesive fine sediment (<62‐μm) remobilisation depths from a representative chalk stream gravel bed. This represents some of the first scientifically robust data, which can direct revised and targeted fine sediment management in ...
Beth Mondon, David A. Sear, Hachem Kassem, Adrian L. Collins, Peter J. Shaw, Tim Sykes   +5 more
wiley   +1 more source

OCEANOGRAPHIC AND ACOUSTIC MEASUREMENTS IN DRAKE PASSAGE

Gayana, 2004
On December 2001 the Argentinean Naval Service of Research and Development participated in the LMG01-9 expedition to Antarctic Peninsula, which was part of the Antarctic Program of the National Science Foundation of the USA for 2001.
Michèle Baqués, Silvia Blanc
doaj  

International Contrast Ultrasound Society Safety Round Table

Journal of Ultrasound in Medicine, Volume 45, Issue 3, Page 473-485, March 2026.
The international Contract Ultrasound Society (ICUS) held a round table discussion on the safety of ultrasound contrast agents for cardiology, radiology, and pediatrics on September 4, 2024. The panel included international experts on ultrasound contrast.
Richard G. Barr, Jordan Strom, Dirk A. Clevert, Stephanie R Wilson, Thomas Porter, Kassa Darge   +5 more
wiley   +1 more source

Measurement of backscattering strength of artificial bubbles in the Southern Sea of the Korean Peninsula

Frontiers in Marine Science
Bubbles greatly affect the propagation of sound waves as the acoustic characteristics of a bubble cluster in water are distinct from those of undisturbed water.
Ho Seuk Bae, Won-Ki Kim
doaj   +1 more source

RRS Discovery Cruise 368, 15 Jul - 04 Aug 2011. Hydrographic measurements on WOCE line A16N

, 2012
RRS Discovery Cruise 368 was a repeat occupation of part of the Atlantic hydrographic section designated by the World Ocean Circulation Experiment (WOCE) as A16N. A total of 29 CTDO (conductivity-temperature-depth-oxygen) stations were occupied.
et al,, King, B.A.
core  

Overview of Diagnostic Ultrasound Safety

Journal of Ultrasound in Medicine, Volume 45, Issue 3, Page 487-496, March 2026.
Ultrasound is widely regarded as a safe imaging modality; however, emerging ultrasound‐based techniques—such as shear wave elastography and contrast‐enhanced ultrasound—operate with varying acoustic output parameters that may approach or exceed traditional diagnostic limits. As these technologies are increasingly integrated into human research studies,
Saubhagya Srivastava, Baihui Yu, David Giraud, Manjiri Dighe, Manish Dhyani, Richard G. Barr   +5 more
wiley   +1 more source

Algal glycans promote microbial turnover of organic matter through stabilization of subtidal permeable sandy sediments

Limnology and Oceanography, Volume 71, Issue 3, March 2026.
Abstract Permeable sands on continental shelves host microbial communities that drive organic carbon turnover, oxygen fluxes and nitrogen loss. Advective porewater flow associated with sedimentary bedforms maintains these rates and fluxes. Modeling and laboratory studies suggest that advective porewater flow is tightly coupled to bedform stability ...
Fabian Lange, Soeren Ahmerkamp, Aman Akeerath Mundanatt, Farooq Moin Jalaluddin, Gesa Schulz, Daniela Voß, Oliver Zielinski, Ulrike Hanz, Gaute Lavik, Hannah K. Marchant, Jan‐Hendrik Hehemann, Timothy G. Ferdelman, Moritz Holtappels, Marcel M. M. Kuypers   +13 more
wiley   +1 more source

Field measurements and model predictions of turbulent kinetic energy in canopies of sparse vegetation under tidal flows

Limnology and Oceanography Letters, Volume 11, Issue 2, March 2026.
Abstract The presence of vegetation in aquatic environments alters hydrodynamics and sediment resuspension. A recent paradigm has suggested that turbulent kinetic energy (TKE) serves as a better predictor of sediment transport in aquatic canopies than bed shear stress.
Vinay Nelli, Julia C. Mullarney, Rémi Chassagne, William Nardin, Rafael O. Tinoco   +4 more
wiley   +1 more source