Deep ocean acoustic Doppler current profiling
- 1 January 1990
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 192-201
- https://doi.org/10.1109/curm.1990.110905
Abstract
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 over the water column to get a velocity profile relative to an unknown constant of integration. The resulting profile is useful at scales of a few hundred metres, but has errors that accumulate to 10-20 cm/s over a few thousand metres. Errors at low wavenumber are found to be considerably larger than the calculated lower bound, but the information at higher wavenumbers is still of scientific value.Keywords
This publication has 8 references indexed in Scilit:
- Lower bounds on pulsed-Doppler current profiler accuracyPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Acoustic Doppler current profiler observations of a mid‐ocean ridge hydrothermal plumeJournal of Geophysical Research: Oceans, 1989
- Deep zonal currents in the central equatorial PacificJournal of Marine Research, 1987
- TOPS: A Free-Fall Velocity and CTD ProfilerJournal of Atmospheric and Oceanic Technology, 1984
- An acoustic dropsonde—design, performance and evaluationDeep Sea Research Part A. Oceanographic Research Papers, 1982
- PEGASUS: A simple, acoustically tracked, velocity profilerDeep Sea Research Part A. Oceanographic Research Papers, 1981
- Equatorial undercurrentsDeep Sea Research and Oceanographic Abstracts, 1976
- Vertical energy propagation of inertial waves: A vector spectral analysis of velocity profilesJournal of Geophysical Research, 1975