Results 21 to 30 of about 24,773 (308)

Comparing the Currents Measured by CARTHE, CODE and SVP Drifters as a Function of Wind and Wave Conditions in the Southwestern Mediterranean Sea

Sensors, 2022
Instruments drifting at the ocean surface are quasi-Lagrangian, that is, they do not follow exactly the near-surface ocean currents. The currents measured by three commonly-used drifters (CARTHE, CODE and SVP) are compared in a wide range of sea state ...
Pierre-Marie Poulain, Luca Centurioni, Tamay Özgökmen   +2 more
doaj   +1 more source

Challenges with Regard to Unmanned Aerial Systems (UASs) Measurement of River Surface Velocity Using Doppler Radar

Remote Sensing, 2022
Surface velocity is traditionally measured with in situ techniques such as velocity probes (in shallow rivers) or Acoustic Doppler Current Profilers (in deeper water). In the last years, researchers have developed remote sensing techniques, both optical (
Filippo Bandini, Monica Coppo Frías, Jun Liu, Kasparas Simkus, Sofia Karagkiolidou, Peter Bauer-Gottwein   +5 more
doaj   +1 more source

A new methodology for the quantitative visualization of coherent flow structures in alluvial channels using multibeam echo-sounding (MBES) [PDF]

, 2010
In order to investigate the interactions between turbulence and suspended sediment transport in natural aqueous environments, we ideally require a technique that allows simultaneous measurement of fluid velocity and sediment concentration for the whole ...
Best, J L, Best, Jim, Czuba, Jonathan, Malzone, Chris, Oberg, Kevin, Parsons, Daniel, Simmons, Stephen, Simmons, Steve   +7 more
core   +3 more sources

Mesoscale subduction at the Almeria-Oran front. Part 2: biophysical interactions. [PDF]

, 2001
This paper presents a detailed diagnostic analysis of hydrographic and current meter data from three, rapidly repeated, fine-scale surveys of the Almeria–Oran front.
Allen, Allen, Allen, Arnone, Arnone, Ashjian, B Rabe, Bainbridge, Baussant, Beaulieu, Bianchi, Boucher, Boucher, Cheney, Claustre, Crisp, Crisp, Crowder, DePalma, Dewey, Fiala, Flagg, Folkard, Franks, Franks, Gascard, Gorsky, Govoni, Griffiths, H.S.J Roe, Haury, Heburn, Herman, Herring, Heywood, Hobson, Hood, Huntley, J.T Allen, Johnson, L'Helguen, L'Helguen, Le Fèvre, Lillibridge, Lohrenz, Longhurst, M.C Hartman, Magnuson, McClain, Murav'yev, N Crisp, Nash, Okubo, Olson, Olson, Olson, Ortner, Ortner, Owen, Perkins, Perkins, Plueddemann, Pollard, Pollard, Prieur, Prieur, Rabe, Roe, S Fielding, Seguin, Sournia, Sournia, Strass, Thibault, Tintore, Videau, Viúdez, Williams, Wishner, Yoder, Zakardjian   +80 more
core   +1 more source

Resolving velocity ambiguity of two coded pulse in broad-band acoustic Doppler current profiler [PDF]

MATEC Web of Conferences, 2019
Broad-band Acoustic Doppler Current Profiler (BBADCP) adopts short-sequence coded pulse to measure high velocity. Short-sequence coded pulse has large measurable velocity, so it is not easy to have velocity ambiguity.
Zhang Weixuan, Wang Changhong, Deng Kai
doaj   +1 more source

Analysis of acoustic Doppler current profiler mean velocity measurements in shallow flows

, 2020
Acoustic Doppler current profilers (ADCPs) are commonly used instruments for measurement of natural streamflow and flow in manmade channels. Velocities measured in a profile by the instrument are used to estimate the discharge in a channel. A Teledyne RD
Matthew R. Klema, Abdul G. Pirzado, S. K. Venayagamoorthy, T. Gates   +3 more
semanticscholar   +1 more source

Discharge estimation in a backwater affected meandering river [PDF]

, 2011
Variable effects of backwaters complicate the development of rating curves at hydrometric measurement stations. In areas influenced by backwater, single-parameter rating curve techniques are often inapplicable.
Hidayat, H., Hoitink, A.J.F., Sassi, M.G., Torfs, P.J.J.F., Vermeulen, B.   +4 more
core   +4 more sources

Internal Tides and Their Intraseasonal Variability on the Continental Slope Northeast of Taiwan Island Derived from Mooring Observations and Satellite Data

Remote Sensing, 2021
In this study, strong internal tides were observed on the continental slope northeast of Taiwan Island. Owing to the lack of long-term observations, these tides’ intraseasonal variability and the impact of the Kuroshio Current remain unclear.
Yuqi Yin, Ze Liu, Yuanzhi Zhang, Qinqin Chu, Xihui Liu, Yijun Hou, Xinhua Zhao   +6 more
doaj   +1 more source

A novel drifter designed for use with a mounted Acoustic Doppler Current Profiler in shallow environments [PDF]

, 2013
We present a novel design for a surface drifter, mounted with a pulse-coherent Acoustic Doppler Current Profiler (ADCP) for measuring near-surface (depths 0.18-1 m) flows.
Henderson, Stephen M., Mullarney, Julia C.   +1 more
core   +2 more sources

Richardson number (RiNo) float operations during the Patch Experiment (PATCHEX), and data summary [PDF]

, 1988
The Patch Experiment (PATCHEX) was a multi-ship experiment that took place in the area near 34 N, 127 W, between 8 and 27 October, 1986. The ships used in the experiment and their chief scientific objectives were the following: R/V THOMPSON, AMP ...
Montgomery, Ellyn T.
core   +1 more source