Results 221 to 230 of about 24,773 (308)

Fish use of deep-sea sponge habitats evidenced by long-term high-resolution monitoring. [PDF]

Sci Rep
De Clippele LH, Nozères C, Xu J, MacDonald B, Lirette C, Phelan K, Staniforth C, Whoriskey F, Wolff GA, Blackbird S, Mohn C, Kenchington E.   +11 more
europepmc   +1 more source

Trials and evaluation of an RD Instruments Acoustic Correlation Current Profiler in the Agulhas Current on RRS "Discovery" Cruise 214

, 1995
Dupee, B., Griffiths, G., Nguyen, T., Spain, P., Watson, G.   +4 more
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Performance of a broad-band acoustic Doppler current profiler

IEEE Journal of Oceanic Engineering, 1991
A new broadband acoustic Doppler current profiler (ADCP) is described, with a useful range comparable to that of a commercially available narrowband (incoherent) system of the same acoustic frequency, but having enhanced performance. The extra performance may be traded off among (1) reduced velocity variance, (2) reduced averaging time, and (3) finer ...
B.H. Brumley, R.G. Cabrera, K.L. Deines, E.A. Terray   +3 more
openaire   +2 more sources

Hydroakustische Doppler-Strömungsprofilsensoren (Acoustic Doppler Current Profiler/ADCP)

2021
Nach einer Klassifizierung von Stromungs- und Stromungsprofilsensoren wird das Wirkungsprinzip von Vertikal(V)-ADCP-Sensoren behandelt und Stromungsprofilmessungen mit einem V-ADCP, installiert auf dem Messkatamaran MESSIN I, mit weiterentwickelten Programmen der Datenauswertung auf MATLAB®-Basis dargestellt.
Jürgen Majohr, Martin Kurowski
openaire   +1 more source

Evaluating Hydraulic Habitat Suitability of Filamentous Algae Using an Unmanned Aerial Vehicle and Acoustic Doppler Current Profiler

, 2020
The hydraulic habitat preference of the nuisance benthic alga Cladophora glomerata was investigated in a shallow river using an unmanned aerial vehicle (UAV) and acoustic Doppler current pr...
Kyle F. Flynn, S. Chapra
semanticscholar   +1 more source

Deep ocean acoustic Doppler current profiling

Proceedings of the IEEE Fourth Working Conference on Current Measurement, 1990
A standard 300-kHz self-contained acoustic Doppler current profiler (ADCP) which was mounted with a CTD on a rosette sampler and used to obtain relative velocity profiles over the full ocean depth range is described. The unknown motion of the ADCP-CTD package is removed by averaging individual vertical shear profiles in depth bins and then integrating ...
E. Firing, R.L. Gordon
openaire   +1 more source

Calibration of acoustic Doppler current profiles

OCEANS '88. 'A Partnership of Marine Interests'. Proceedings, 2003
The National Ocean Service of NOAA has recently conducted tests and established a laboratory calibration technique for Doppler current profilers. A cooperative effort was established with the manufacturer to assess the technique and the instrument's performance.
G.F. Appell, J. Gast, R.G. Williams, P.D. Bass   +3 more
openaire   +1 more source

Acoustic Doppler Current Profiler Wave Sentry buoy

OCEANS 2009, 2009
The design of a small Acoustic Doppler Current Profiler (ADCP) equipped Wave Sentry buoy can provide realtime remote measurement of wave data and ocean current profiles (surface to bottom) for operational and scientific exercises. The small size and weight of the system allows for deployment from small craft and provides military forces and the ...
Richard Smith, Berry McCormick, David McNeal, Bill Hughes   +3 more
openaire   +1 more source

Assessment of acoustic Doppler current profiler heading errors on water velocity and discharge measurements

Flow Measurement and Instrumentation, 2018
Boat-mounted acoustic Doppler current profilers (ADCPs) are commonly used to make both water velocity and discharge measurements. Most ADCPs measure the direction of travel of the water and boat using an internal compass.
D. Mueller
semanticscholar   +1 more source

Sunrise swimmers bias acoustic Doppler current profiles

Deep Sea Research Part A. Oceanographic Research Papers, 1992
Abstract Currents over Southeast Hancock Seamount summit in the central North Pacific Ocean were measured with a vessel-mounted acoustic Doppler current profiler (ADCP) on two cruises in 1988. After removing a linear trend, about half of the velocity variance was at diurnal and semidiurnal frequencies.
C.D. Wilson, E. Firing
openaire   +1 more source