Results 11 to 20 of about 24,773 (308)

Direct observations of bedform migration driven by turbidity currents in a lacustrine channel [PDF]

Scientific Reports
Turbidity currents, gravity-driven sediment-laden flows, govern material transport and shape underwater landscapes across diverse environments. While extensively studied in marine settings, their dynamics in freshwater systems remain underexplored.
Gaétan Sauter, Damien Bouffard, Stefano C. Fabbri, Koen Blanckaert, Flavio S. Anselmetti, Katrina Kremer   +5 more
doaj   +2 more sources

Active and passive organic carbon fluxes during a bloom in the Southern Ocean (South Georgia) [PDF]

Scientific Data
The Controls Over Mesopelagic Interior Carbon Storage (COMICS) cruise DY086 took place aboard the RRS Discovery in the South Atlantic during November and December, 2017.
William Major, Sarah L. C. Giering, Joanna Ainsworth, Anna Belcher, Sabena Blackbird, Martin Bridger, Nathan Briggs, Filipa Carvalho, Louis Clément, Kathryn Cook, Cynthia Dumousseaud, Benoit Espinola, Claire Evans, Sophie Fielding, Manuela Hartmann, Stephanie Henson, Morten Iversen, Konstadinos Kiriakoulakis, Richard Lampitt, Elisa Lovecchio, Adrian Martin, Dan Mayor, Mark Moore, Katsiaryna Pabortsava, Corinne Pebody, Kate Peel, Calum Preece, Alex Poulton, Rachel Rayne, Kevin Saw, Mark Stinchcombe, Gabriele Stowasser, Geraint A. Tarling, Sandy Thomalla, María Villa-Alfageme, George A. Wolff, Richard Sanders   +36 more
doaj   +2 more sources

Evaluation of discrete target detection with an acoustic Doppler current profiler

Limnology and Oceanography: Methods, 2022
Acoustic Doppler current profilers (ADCPs) use the signal scattered back from small suspended drifting particles, such as suspended sediments and planktonic species, to measure water current velocity.
M. Dunn, L. Zedel
semanticscholar   +1 more source

Detection of suspended macroplastics using acoustic doppler current profiler (ADCP) echo

Frontiers in Earth Science, 2023
Plastic pollution has become an enormous environmental problem, endangering ecosystems, livelihoods, safety and human health. Large quantities of plastics are trapped in or transported by rivers.
Anouk Boon, Frans A. Buschman, Tim H. M. van Emmerik, Sophie Broere, Bart Vermeulen   +4 more
doaj   +1 more source

Calibration and Verification of Operation Parameters for an Array of Vectrino Profilers Configured for Turbulent Flow Field Measurement around Bridge Piers—Part I

Fluids, 2022
Flow mapping around bridge piers is crucial in estimating scour development potential under different flow conditions. The reliable measurement of turbulence and the estimation of Reynolds stress can be achieved on scaled models under controlled ...
Gordon Gilja, Robert Fliszar, Antonija Harasti, Manousos Valyrakis   +3 more
doaj   +1 more source

Evaluation of the Performance of a Discharge Gauging Station on Tigris River in Baiji, Iraq

Iraqi Geological Journal, 2023
Gauging the discharge of theTigris River in Baiji is very important, as it reflects the final accumulated flows from Mosul Dam, upper and lower Zab tributaries, which send downstream to the control system in Samarra.
Saif Olewi, Sabbar Salih, Faraj Sulaiman   +2 more
doaj   +1 more source

Turbulence measurements: An assessment of Acoustic Doppler Current Profiler accuracy in rough environment

, 2021
The deployment of tidal turbines requires a precise hydrodynamic characterisation of the production site. Acoustic Doppler Current Profilers (ADCP), usually employed for measuring the time-mean characteristics of environmental flows, could also be used ...
P. Mercier, M. Thiébaut, S. Guillou, Christophe Maisondieu, E. Poizot, A. Pieterse, Jérôme Thiébot, J. Filipot, M. Grondeau   +8 more
semanticscholar   +1 more source

Signal Processor Design Based on FPGA for Acoustic Doppler Current Profiler [PDF]

Jisuanji gongcheng, 2017
Aiming at the real-time requirements and easy upgrode feature for high-speed signal acquisition and processing in Acoustic Doppler Current Profiler(ADCP),a hardware and software co-design method based on Field Programmable Gate Array(FPGA) is proposed ...
JIN Licong,GUO Ran,CHEN Peng,DANG Yuanjie,SUN Wenjun
doaj   +1 more source

In Situ Radioactivity Measurements and Water Flow Characteristics of a Thermal Spring in Gera Gulf, Lesvos Island, Greece

Journal of Marine Science and Engineering, 2023
In this study, a thermal spring located in the Gulf of Gera (Lesvos Island) is investigated in terms of radiotracers, water flow velocities and acoustic back-scattering properties by in situ observations.
Christos Tsabaris, Vassilis Zervakis, Spyros Saitanis, Dionisis Patiris, Filothei K. Pappa, Antonios Velegrakis, Stylianos Alexakis, Sotirios Kioroglou   +7 more
doaj   +1 more source

Temporal variations of zooplankton biomass in the Ligurian Sea inferred from long time series of ADCP data [PDF]

Ocean Science, 2014
Three years of 300 kHz acoustic doppler current profiler data collected in the central Ligurian Sea are analysed to investigate the variability of the zooplankton biomass and the diel vertical migration in the upper thermocline.
R. Bozzano, E. Fanelli, S. Pensieri, P. Picco, M. E. Schiano   +4 more
doaj   +1 more source