Now showing items 11-20 of 925
Characterizing the deep insular shelf coral reef habitat of the Hind Bank marine conservation district (US Virgin Islands) using the Seabed autonomous underwater vehicle
The benthic communities of the deep insular shelf at the Hind Bank Marine Conservation District (MCD), an important spawning grouper aggregation site, were studied with the Seabed autonomous underwater vehicle (AUV) at ...
Elevators - autonomous transporters for deep sea benthic sample recovery
(Woods Hole Oceanographic Institution, 2000-01)
Two classes of sample recovery devices have been fabricated for use with the Jason deep diving remotely operated vehicle (ROV). One class includes custom-built, autonomous vertical transporters (AVTs) that are capable of ...
A SAIL compatible three channel acoustic navigation interrogator
(Woods Hole Oceanographic Institution, 1990-09)
Ocean Acoustic Tomography data are significantly degraded if mooring motion is unknown. An autonomous instrument employing a solid state data logger designed to track and record mooring motion is described. Navigation ...
CTD electromechanical termination users manual
(Woods Hole Oceanographic Institution, 1990-08)
This report desribes a new, easy to install, reliable electromechanical cable termination to mechanically attach and electrically connect cable lowered instrument packages to their lowering cable.
Universal criteria for blind deconvolution
(Woods Hole Oceanographic Institution, 1990-02)
We present necessary and sufficient conditions for blind equalization/deconvolution (without observing the input) of an unknown, possible non-minimum phase linear time invariant system (channel). Based on that, we propose ...
Water samplers for open ocean tracer release experiments
(Woods Hole Oceanographic Institution, 1998-12)
Conventional "spot" sampling of patchy distributions of oceanic constituents can lead to sampling errors. Interpretation of results based on data of disparate temporal or spatial resolution can be difficult or impossible. ...
Stirring by small-scale vortices caused by patchy mixing
(American Meteorological Society, 2005-07)
Evidence is presented that lateral dispersion on scales of 1–10 km in the stratified waters of the continental shelf may be significantly enhanced by stirring by small-scale geostrophic motions caused by patches of mixed ...
Three-dimensional mapping of fluorescent dye using a scanning, depth-resolving airborne lidar
(American Meteorological Society, 2007-06)
Results are presented from a pilot study using a fluorescent dye tracer imaged by airborne lidar in the ocean surface layer on spatial scales of meters to kilometers and temporal scales of minutes to hours. The lidar used ...
Radio LAN acquisition module (RLAM) : recent developments for high resolution data collection systems as implemented for the ONR sea ice mechanics experiment, spring 1994
(Woods Hole Oceanographic Institution, 1995-05)
During a recent experiment (April 1994), for the ONR Sea Ice Mechanics Initiative (SIMI), a portable data acquisition system was assembled that included 2 new developments. The first consists of a board, designed for the ...
Hydrodynamic modeling of towed buoyant submarine antenna's in multidirectional seas
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2000-09)
A finite difference computer model is developed to simulate the exposure statistics of a radio frequency buoyant antenna as it is towed in a three-dimensional random seaway. The model allows the user to prescribe antenna ...