| Beta Testing of Persistent Passive Acoustic Monitors |
01 Oct 2012 |
18 pages |
| Authors:
Mark Johnson; Dave Fratantoni; Mark Baumgartner; Thomas Hurst; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
|
 | Long-endurance oceanographic sampling platforms such as gliders and profiling floats provide a new opportunity for acquiring acoustic signals from marine animals with immediate applications in conservation and mitigation. Our objective is to produce a reliable system for persistent passive acoustic monitoring of marine animals. The system, comprising both low-power hardware and acoustic processing software, will be extensible and can be incorporated in a variety of autonomous platforms. The design will ... |
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| Marginal Ice Zone (MIZ) Program: Science and Experiment Plan |
Oct 2012 |
52 pages |
| Authors:
Craig M Lee; Sylvia Cole; Martin Doble; Lee Freitag; Phil Hwang; Steve Jayne; Martin Jeffries; Rick Krishfield; Ted Maksym; Wieslaw Maslowski; WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB
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| The Marginal Ice Zone (MIZ) intensive field program will employ an array of cutting-edge autonomous platforms to characterize the processes that govern Beaufort Sea MIZ evolution from initial breakup and MIZ formation though the course of the summertime sea ice retreat. Instruments will be deployed on and under the ice prior to initial formation of the MIZ along the Alaska coast, and will continue sampling from open water, across the ... |
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| A Submersible Holographic Camera for the Undisturbed Characterization of Optically Relevant Particles in Water (HOLOCAM) |
Sep 2012 |
8 pages |
| Authors:
James M Sullivan; WESTERN ENVIRONMENTAL TECHNOLOGY LABS INC NARRAGANSETT RI
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| Our long-term goal is to develop novel oceanographic instrumentation to address fundamental questions in ocean optics. The primary goal of this project is to develop a holographic instrument capable of imaging and characterizing natural (i.e. undisturbed) particle fields in the ocean. The longterm science goal is to understand the link between suspended particles and the bulk scattering properties of natural waters. We believe in-situ digital holographic microscopy, recently developed and ... |
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| A Single Vehicle Solution for Hull Inspection and Harbor Survey |
27 Feb 2012 |
12 pages |
| Authors:
Thomas C Austin; Michael J Purcell; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA DEPT OF APPLIED OCEAN PHYSICS AND ENGINEERING
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| The Woods Hole Oceanographic Institution has developed, under ONR funding, a new UUV capability that provides the multi-use capabilities required to perform hull inspections and harbor surveys. Based on the proven, REMUS-100 core vehicle system, this vehicle has a new, modular tunnel thruster package, which includes four controlled through-hull thrusters. These individually controlled thrusters are integrated into the vehicle control system, allowing mission plans at any speed, including zero. The ... |
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| Quantifying Loss of Acoustic Communication Space for Right Whales in and around a U.S. National Marine Sanctuary |
Jan 2012 |
14 pages |
| Authors:
Leila T Hatch; Christopher W Clark; Sofie M Van Parijs; Adam S Frankel; Dimitri W Ponirakis; NOAAS STELLWAGEN BANK NATIONAL MARINE SANCTUARY SCITUATE MA
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| The effects of chronic exposure to increasing levels of human-induced underwater noise on marine animal populations reliant on sound for communication are poorly understood. We sought to further develop methods of quantifying the effects of communication masking associated with human-induced sound on contact-calling North Atlantic right whales (Eubalaena glacialis) in an ecologically relevant area (∼10,000 km2) and time period (peak feeding time). We used an array of temporary, bottom-mounted, autonomous ... |
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| A Submersible Holographic Camera for the Undisturbed Characterization of Optically Relevant Particles in Water (HOLOCAM) |
30 Sep 2011 |
9 pages |
| Authors:
James M Sullivan; WET LABS INC NARRAGANSETT RI RESEARCH DEPT
|
| Our long-term goal is to develop novel oceanographic instrumentation to address fundamental questions in ocean optics. The primary goal of this project is to develop a holographic instrument capable of imaging and characterizing natural (i.e. undisturbed) particle fields in the ocean. The long-term science goal is to understand the link between suspended particles and the bulk scattering properties of natural waters. We believe in-situ digital holographic microscopy, recently developed and ... |
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| Quantify Lateral Dispersion and Turbulent Mixing by Spatial Array of chi-EM-APEX Floats |
30 Sep 2011 |
9 pages |
| Authors:
Thomas B Sanford; Ren-Chieh Lien; WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB
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| Our long-term scientific goals are to understand the dynamics and identify mechanisms of small-scale processes--i.e., internal tides, inertial waves, nonlinear internal waves, vortical modes, and turbulence mixing--in the ocean and thereby help develop improved parameterizations of mixing for ocean models. Mixing within the stratified ocean is a particular focus as the complex interplay of internal waves from a variety of sources and turbulence makes this a current locus of uncertainty. ... |
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| Development of an Autonomous Ammonium Fluorescence Sensor (AAFS) with a View Towards In-situ Application |
Sep 2011 |
7 pages |
| Authors:
Peter B Ortner; Jia-Zhong Zhang; Natchanon Amornthammarong; MIAMI UNIV FL ROSENSTIEL SCHOOL OF MARINE AND ATMOSPHERIC SCIENCE
|
| Our goal is to develop a portable autonomous ammonium sensor. Such a sensor could be deployed for periods of up to a month aboard ships, moorings or drifting buoys or used as a component in lowered or towed oceanographic instrument packages for vertical profiling. Our technical objective is to develop a robust, relatively simple, inexpensive, low power and compact instrument with a detection limit in the nM range and a ... |
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| Observations and Modeling for Source Characterization |
25 FEB 2011 |
9 pages |
| Authors:
Mark A. Moline; Lyle F. Hibler; CALIFORNIA POLYTECHNIC STATE UNIV SAN LUIS OBISPO BIOLOGICAL SCIENCES DEPT
|
| As part of this effort, REMUS UUVs from Cal Poly and SIO jointly collected CT profiles around the model boundary, and in and around the Tijuana River plume before, during and after storm events. Data were collected in February and March of 2008 and 2009 for a total of 15 missions. These observations were then used by the model for initiation and validation. The DELFT-3D FLOW model is now operational ... |
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| Proof of Concept Demonstration of the Hybrid Remotely Operated Vehicle (HROV) Light Fiber Tether System |
Sep-2008 |
7 pages |
| Authors:
Barbara Fletcher; Chris Young; James Buescher; Louis L Whitcomb; Andrew Bowen; Robert McCabe; Dana R Yoerger; SPACE AND NAVAL WARFARE SYSTEMS CENTER SAN DIEGO CA
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| The Hybrid Remotely Operated Vehicle (HROV) Nereus, developed by the Woods Hole Oceanographic Institution (WHOI) with the support of the Space and Naval Warfare Systems Center San Diego (SSC San Diego) and the Johns Hopkins University, is intended to provide a new level of access for deep oceanographic research to a maximum depth of 11,000 meters. Nereus operates in two different modes. The vehicle can operate untethered as an autonomous ... |
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| Quantification of the Interacting Physical, Biological, Optical and Chemical Properties of Thin Layers in the Sea |
Jan-2008 |
10 pages |
| Authors:
Margaret A McManus; Mark T Stacey; John P Ryan; HAWAII UNIV AT MANOA HONOLULU DEPT OF OCEANOGRAPHY
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| Our long-term goal is to develop the capability to predict thin layer formation and presence in the coastal ocean. The central focus of our research is to investigate: the spatial and temporal scales of thin layers, the relationship between physical processes (from the microscale to the mesoscale) and thin layers, as well as the difference between layered structures in the nearshore and offshore environments. The overarching goal of our research ... |
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| An Underwater Bioluminescence Assessment Tool (U-BAT) |
Jan-2008 |
11 pages |
| Authors:
Andrew Barnard; WESTERN ENVIRONMENTAL TECHNOLOGY LAB INC (WET LABS INC) PHILOMATH OR
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| Our long-term objective for Phase II of our research is the construction of four Underwater Bioluminescence Assessment Tool (U-BAT) commercial prototypes that have been fully characterized in the laboratory and field, thereby paving the way for widespread use and acceptance of the U-BAT to measure bioluminescence by oceanographers and the Navy. WET Labs will transition the technology, developed at UCSB, into a commercially available version that is small, light weight, ... |
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| Cetaceans and Naval Sonar: Behavioral Response as a Function of Sonar Frequency |
Jan-2008 |
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| Authors:
Peter L Tyack; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
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 | This is an international cooperative research program to quantify the behavioral reactions of cetaceans and herring to controlled presentations of military sonar signals at 2 different frequencies (LFAS:1-2 kHz and MFAS:6-7 kHz), and relevant control sounds within Norwegian waters. The ultimate goal is to use these data to help establish safety limits for sonar operations. The targeted species are herring and killer whales, through we will also opportunistically study pilot ... |
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| Acoustic Resonance Classification of Swimbladder-Bearing Fish |
Jan-2008 |
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| Authors:
Dezhang Chu; J M Jech; Timothy K Stanton; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA DEPT OF APPLIED OCEAN PHYSICS AND ENGINEERING
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| To understand and exploit the resonance scattering by swimbladder-bearing fish (typically in the 1-10 kHz frequency region). Exploitation of the resonances can significantly reduce ambiguities in interpreting acoustic scattering in terms of meaningful biological parameters compared with traditional higher frequency approaches. To conduct a new class of quantitative acoustic studies of scattering by swimbladder-bearing fish utilizing new commercial broadband-acoustic technology that is optimized for use in the resonance scattering region ... |
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| Assessing Plankton and Particles with an Autonomous Imaging LOPC |
Jan-2008 |
6 pages |
| Authors:
Checkley; David M Jr; Alex W Herman; SCRIPPS INST OF OCEANOGRAPHY LA JOLLA CA INTEGRATIVE OCEANOGRAPHY DIV
|
| We wish to characterize and quantify particles and plankton in the pelagic ocean, to enable an understanding of their dynamics and their roles in ecosystems and biogeochemical cycles. Characterization and quantification are also necessary to describe the distribution and abundance of particles and plankton in the sea in relation to the environment, including its acoustic and optical properties. Our objective is to integrate the Laser Optical Plankton Counter (LOPC) with ... |
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| AUV Turbulence Measurements in the LOCO Field Experiments |
Jan-2008 |
10 pages |
| Authors:
Louis Goodman; MASSACHUSETTS UNIV DARTMOUTH SCHOOL FOR MARINE SCIENCE AND TECHNOLOGY
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| The long-term goal of this project is to quantify the role of turbulence and fine scale vertical shear and buoyancy on the formation, evolution, and breakdown of thin phytoplankton layers. Particular attention is given to understanding the relationship of the space and time statistics of the physical fields to that of the phytoplankton thin layers. (1) Quantify the horizontal and vertical structure of turbulence and identify the most probable mechanism ... |
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| Behavioral Responses of Odontocetes to Playback of Anthropogenic and Natural Sounds |
Jan-2008 |
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| Authors:
Peter L Tyack; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
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| The long-term goal of this research project is to safely study responses of beaked whales to naval sounds in order to understand the causal chain of events leading from sound exposure to risks of stranding and to measure the exposure required to elicit responses that are safe but indicate potential for risk. The project is designed to provide critical information required to develop measures to protect beaked and other whales ... |
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| Integration of Marine Mammal Movement and Behavior into the Effects of Sound on the Marine Environment |
Jan-2007 |
4 pages |
| Authors:
Dorian S Houser; BIOMIMETICA SANTEE CA
|
| Integration of the Marine Mammal Movement and Behavior (3MB) model into the Effects of Sound on the Marine Environment (ESME) program contributes to the ultimate goal of creating an environmental impact assessment tool for Navy acoustic activities in the ocean. The objectives of the effort are to 1) integrate the 3MB module into the second generation model of ESME, 2) incorporate the influence of bathymetric features on simulated marine mammal ... |
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| The Feasibility of Sodar Wind Profile Measurements from an Oceanographic Buoy |
SEP 2006 |
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| Authors:
Allison M. Berg; MASSACHUSETTS INST OF TECH CAMBRIDGE
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| This thesis explores the feasibility of making wind speed profile measurements from an oceanographic buoy using a Doppler sodar. In the fall of 2005, we deployed a Scintec SFAS sodar on an ASIS buoy. Roughly one week of buoy motion data and one day of sodar observations were collected. Data from both this deployment, and the Martha's Vineyard Coastal Observatory, were used in conjunction with models to predict sodar performance. ... |
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| Advanced Tethered Vehicle (ATV) Activation Project |
30 JAN 2006 |
5 pages |
| Authors:
Mark A. Zumberge; Glenn S. Sasagawa; Fred N. Spiess; SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA
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| The ATV was retired by the Navy and then transferred the system to SIO for science use. At the time of transfer the system was not fully operational and remained idle until ONR provided funding for an evaluation operation in 2003. Repairs to propulsion, hydraulics, and electronics were undertaken. This was carried out successfully in May, 2003, in 1100 m water, supported by R/V Roger Revelle. The dives demonstrated geological ... |
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| Gulf of Maine Ocean Observing System |
25 JAN 2006 |
68 pages |
| Authors:
Philip Bogden; Neal Pettigrew; James Irish; Will Perrie; Collin Roesler; Andrew Thomas; David Townsend; Huijie Xue; MAINE UNIV AT ORONO
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| Funds submitted 2001 - 2005 to implement and sustain and ocean observing system for the Gulf of Maine have resulted in the organization widely known as GoMOOS. The technical program, implemented by scientists at University of Maine, Bigelow Laboratory of Ocean Sciences, Bedford Institute of Oceanography and Woods Hole Oceanographic Institution, includes 10 buoys collecting real-time observations of the ocean and atmosphere, predictive models of waves and circulation, testing of ... |
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| Southern Ocean GLOBEC Moored Array and Automated Weather Station Data Report |
JUN 2005 |
133 pages |
| Authors:
Carlos Moffat; Robert C. Beardsley; Richard Limeburner; Breck Owens; Mike Caruso; Jason Hyatt; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA DEPT OF PHYSICAL OCEANOGRAPHY
|
| As part of the U.S. Southern Ocean GLOBEC program, moored time series measurements of temperature, conductivity (salinity), pressure, velocity, and acoustic backscatter were made from March 2001 to March 2003 in and near Marguerite Bay, located on the Antarctic Peninsula western shelf. To monitor surface forcing during the moored array observations, two automatic weather stations (AWSs) were deployed on islands in Marguerite Bay and time series of wind, air temperature, ... |
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| Experiments with the REMUS AUV |
JUN 2004 |
77 pages |
| Authors:
Matthew D. Phaneuf; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This thesis centers on actual field operations and post-mission analysis of data acguired using a REMUS AUV operated by tbe Naval Postgraduate School center for Autonomous Underwater Vehicle Research. It was one of many platforms tbat were utilized for data collection during AOSN II, (Autonomous Oceanograpbic Sampling Network II), an ONR sponsored exercise for dynamic oceanograpnic data taking and model based analysis using adaptive sampling. Tbe vebicle's ability to collect ... |
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| Accelearting Electronic Tag Development for Tracking Free-Ranging Marine Animals at Sea |
2004 |
9 pages |
| Authors:
Daniel P. Costa; Barbara Block; CALIFORNIA UNIV SANTA CRUZ LONG MARINE LAB
|
| The Tagging of Pacific Pelagics (TOPP) program is pioneering the application of bio-logging science to study pelagic habitat use by marine vertebrates in the North Pacific. The objectives of this proposal are to complete the development and testing of archival and satellite tags necessary for TOPP to reach its long-term goals of multi-species tagging in the North Pacific. Efforts center on both the improvement and testing of existing electronic tag ... |
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| Adaptive Oceanographic Sampling in a Coastal Environment Using Autonomous Gliding Vehicles |
AUG 2003 |
|
| Authors:
David M. Fratantoni; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA DEPT OF PHYSICAL OCEANOGRAPHY
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| The long-term goal of this program is to develop an efficient, mobile, infrastructure-free, ocean-observing system composed of high-endurance, low-cost autonomous vehicles with near-global range and modular sensor payload. Particular emphasis is placed on the development of adaptive sampling strategies and the intelligent control of large glider fleets operating within the framework of an autonomous oceanographic sampling network. The primary objective of the program is to develop and demonstrate moderate-term (weeks) ... |
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| The Northwest Tropical Atlantic Station (NTAS): NTAS-3 Mooring Turnaround Cruise Report |
JUN 2003 |
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| Authors:
Albert J. Plueddemann; William M. Ostrom; Nancy R. Galbraith; Jason C. Smith; James R. Ryder; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
|
| The Northwest Tropical Atlantic Station (NTAS) was established to address the need for accurate air-sea flux estimates and upper ocean measurements in a region with strong sea surface temperature anomalies and the likelihood of significant local air-sea interaction on interannual to decadal timescales. The approach is to maintain a surface mooring outfitted for meteorological and oceanographic measurements at a site near 15 deg N, 51 deg W by successive mooring ... |
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| The Northwest Tropical Atlantic Station (NTAS): NTAS-2 Mooring Turnaround Cruise Report |
SEP 2002 |
|
| Authors:
Albert J. Plueddemann; William M. Ostrom; Nancy R. Galbraith; Paul R. Bouchard; George H. Tupper; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
|
| The Northwest Tropical Atlantic Station (NTAS) was established to address the need for accurate air-sea flux estimates and upper ocean measurements in a region with strong sea surface temperature anomalies and the likelihood of significant local air-sea interaction on interannual to decadal timescales. The approach is to maintain a surface mooring outfitted for meteorological and oceanographic measurements at a site near 15 deg. N, 51 deg. 00W by successive mooring ... |
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| Sequential, Long Baseline Navigation for REMUS, An Autonomous Underwater Vehicle |
14 OCT 2001 |
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| Authors:
Roger P. Stokey; Tom Austin; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
|
| Many of the problems of operating an AUV (autonomous underwater vehicle) can be reduced to one of navigation: How accurately do you know where you are? Navigational precision determines the ability to follow truck lines, the ability to map a target to world coordinates, and ultimately, even determines the areas where you ore willing to operate the vehicle. This paper presents the technique used for long baseline acoustic navigation by ... |
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| Self Adjusting Neutral Buoyancy Countermeasure and System |
10 OCT 2001 |
24 pages |
| Authors:
Neil J. Dubois; DEPARTMENT OF THE NAVY WASHINGTON DC
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| An underwater self adjusting displacement device includes a sealed housing having an exterior wall and an inner component area, the exterior wall having an opening formed therein. A sealing plug is slidably seated in the opening of the exterior wall, and an actuator mechanism selectively adjusts the sealing plug within the opening, thereby adjusting a total displacement of the sealed housing. The displacement device is incorporated into any substantially neutrally ... |
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| Surface Mooring Survivability in the Littoral Regime |
SEP 2001 |
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| Authors:
Richard P. Trask; Mark A. Grosenbaugh; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA DEPT OF APPLIED OCEAN PHYSICS AND ENGINEERING
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| Research on cyclic fatigue of mooring components has shown that it is possible to quantify fatigue failure of mooring components. However, there does not exist at this time a specific design procedure or manual that can be passed on to oceanographic engineers for designing future moorings, especially those having hardware that has not been previously tested in the laboratory. The objective of this project was to develop and document a ... |
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| The Northwest Tropical Atlantic Station (NTAS): NTAS-1 Mooring Deployment Cruise Report |
JUL 2001 |
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| Authors:
Albert J. Plueddemann; Nancy R. Galbraith; William M. Ostrom; George H. Tupper; James M. Dunn; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
|
| A surface mooring outfitted for meteorological and oceanographic measurement was deployed near l4 degrees 50'N, 51 degrees 00'W in the northwest tropical Atlantic on 30 March 2001. This was the initial deployment of the Northwest Tropical Atlantic Station (NTAS) project for air-sea flux measurement. These observations will be used to investigate air-sea interaction processes related to climate variability. The deployment was done on RIV Ocean us Cruise 365, Leg 5 ... |
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| Rapid Hydrographic, Optical and Microstructure Surveys on the Continental Shelf and Slope |
27 MAR 2001 |
6 pages |
| Authors:
John A. Barth; P. M. Kosro; OREGON STATE UNIV CORVALLIS
|
| As part of the Coastal Mixing and Optics Accelerated Research Initiative, measurements of density, light absorption/attenuation and microstructure were made using sensors mounted on a towed undulating platform. The sensor suite included a conductivity-temperature-depth instrument, a nine- wavelength spectral absorption and attenuation meter, and a new microstructure instrument. Surveys were conducted during August 1996 and April-May 1997 in the Middle Atlantic Bight near 40.5N, 70.5W Time-dependent maps of the three- ... |
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| Spectral Feature Classification of Oceanographic Processes Using an Autonomous Underwater Vehicle |
JUN 2000 |
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| Authors:
Yanwu Zhang; MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF OCEAN ENGINEERING
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| This thesis develops and demonstrates methods of classifying ocean processes using an underwater moving platform such as an Autonomous Underwater Vehicle (AUV). The "mingled spectrum principle" is established which concisely relates observations from a moving platform to the frequency-wavenumber spectrum of the ocean process. For classifying different processes, an AUV is not only able to jointly utilize the time-space information, but also at a tunable ... |
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| System and Method for Calibrating Accelerometer Over Low (Ocean Wave) Frequencies |
26 OCT 1999 |
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| Authors:
David H. Shonting; Peter R. Hebda; Foster H. Middleton; DEPARTMENT OF THE NAVY WASHINGTON DC
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| An accelerometer calibration system calibrates an accelerometer for use in, for example, an ocean wave environment in which the accelerometer will undergo generally oscillatory acceleration. The accelerometer calibration system includes an simple harmonic motion (SHM)-derived accelerator and a processor. The SHM-derived accelerator applies an SHM acceleration to the accelerometer. The accelerometer generates an output signal having an amplitude related to the acceleration applied thereto. The processor controls the SHM-derived accelerator ... |
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| Curly Wurly Concept Analysis. Phase I |
MAY 1999 |
35 pages |
| Authors:
B. E. Fletcher; SPACE AND NAVAL WARFARE SYSTEMS CENTER SAN DIEGO CA
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| This effort's objective was to perform a concept analysis of a mechanical deployment and recovery technique for neutrally buoyant underwater cable systems. A Scottish company, Deep Water Recovery and Exploration, Ltd. (DWRE) developed a prototype system, the Curly Wurly. This technique uses an approach where individual outer cables are helically wrapped around a central strength member during deployment and separated during recovery. Phase I of this study investigated and analyzed ... |
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| Low Cost Modular Telemetry for Coastal Time-series Data |
30 SEP 1998 |
5 pages |
| Authors:
Bradford Butman; Daniel E. Frye; W. R. Geyer; GEOLOGICAL SURVEY WOODS HOLE MA
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| Our goal is to develop and demonstrate a low-cost system for retrieving oceanographic data from instruments in the coastal ocean and delivering these data in near real time. This work is conducted under the National Ocean Partnership Program with Federal, State, Academic and private industry participation and funding. We wish to develop and demonstrate a low-cost modular system for telemetering oceanographic data ashore. The system consists of 4 components: (1) ... |
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| Autonomous Buoyed Environmental Sensor System (ABES) |
30 Sep 1998 |
4 pages |
| Authors:
J M Stevenson; SPACE AND NAVAL WARFARE SYSTEMS CENTER SAN DIEGO CA
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| The intent of this research effort was to demonstrate that a low-cost system of sensors could affordably yield dense spatial sampling for shallow (depth is less than 200 m) applications. The system would not replace existing high-resolution oceanographic instrumentation, but fill the niche for a low-cost, lower-resolution system that would provide the end user with the ability to achieve higher spatial sampling. Under joint sponsorship of ONR-321SS and ONR-322PO, the ... |
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| A Self-Deploying, Depth-Adaptive Coastal Oceanographic Mooring |
27 APR 1998 |
28 pages |
| Authors:
Janice D. Boyd; Daniel E. Frye; Don Peters; Richard Arthur; Richard Burnes; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS MESO- AND FINESCALE OCEAN PHYSICS SECTION
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| A compact, low-cost, self-deploying moored oceanographic sensor system has been developed jointly by the Naval Research Laboratory and the Woods Hole Oceanographic Institution. Called XMOOR (for Expendable Oceanographic Mooring), the system is suitable for a variety of meteorological and oceanographic sensors, may be deployed (and if desired, retrieved) in a matter of minutes by untrained personnel, and automatically adapts the length of deployed line to the water depth, so depth ... |
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| Climatic Summary for Sandy Hook Bay, New Jersey |
APR 1998 |
37 pages |
| Authors:
Margaret A. Sabol; Terri L. Prickett; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS COASTAL HYDRAULICS LAB
|
| This document summarizes wave data collection activities in Sandy Hook Bay, NJ, during the period March to August 1997. The objective of this data collection effort was to provide wave information to support modeling efforts for the New York/New Jersey Harbor Dredged Material Management Plan Study requested by the U.S. Army Engineer District, New York. Wave data collection was accomplished using the Prototype Measurement Analysis System, which consists of coastal ... |
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| Analysis of Acoustic Plane-Wave Variability in the Region of the Mid- Atlantic Bight Shelf Break |
DEC 1997 |
57 pages |
| Authors:
Jerry L. Sullivan; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| From the summer cruise of the Mid-Atlantic Bight Experiment, conducted jointly by Naval Postgraduate School, University of Rhode Island, and Woods Hole Oceanographic Institution, a study of acoustic variability in the region of Mid-Atlantic Bight shelf break was conducted. The period of the experiment was 19 July to 09 August 1996. The experiment consisted of a suite of acoustic and oceanographic sensors including three 400 Hz (100 Hz bandwidth) transceivers, ... |
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| Design and Evaluation of a Directional Antenna for Ocean Buoys |
NOV 1997 |
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| Authors:
Daniel Frye; Ken Doherty; Al Hinton; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
|
| A system concept has been developed by Viasat, Inc. and Woods Hole Oceanographic Institution for improving the data telemetry bandwidth available on ocean buoys. This concept utilizes existing communications satellites as data relay stations and mechanically steered antenna arrays to achieve increased data rates and improved power efficiency needed for ocean applications. This report describes an initial feasibility and design study to determine if a mechanically steered antenna array can ... |
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| Dynamics of Destratification in the Severn River Estuary |
07 MAY 1997 |
33 pages |
| Authors:
Christopher S. Irwin; NAVAL ACADEMY ANNAPOLIS MD
|
| As part of an effort to study the hydrodynamic behavior of the Severn River estuary, a mooring with several oceanographic sensors was deployed near the mouth of the river during the autumn of 1995. This mooring had two current meters located at depths of 2.3 and 4.7 meters which took readings of salinity, temperature, and current velocity. Simultaneous wind speed and direction data were taken from the top of Michelson ... |
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| Data Acquisition and Reduction, R/V Ewing Shipboard Support: ContinentalMargin Slope Stability Study |
01 MAR 1997 |
2 pages |
| Authors:
Michael Rawson; dennis Hayes; TRUSTEES OF COLUMBIA UNIV NEW YORK
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| The 60 days of ship time assigned to ONR for this project included the extensive mobilization and installation of Navoceano equipment in Tampa, Florida, followed by three legs of oceanographic surveys on the U.S. continental Shelf and slope. |
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| Search Methods for an Autonomous Underwater Vehicle Using Scalar Measurements |
18 JUL 96 |
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| Authors:
Erik A. Burian; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
|
| The continuing development of the autonomous underwater vehicle as an oceanographic research tool has opened up the realm of scientific possibility in the field of deep ocean research. The ability of a vehicle to travel to the ocean floor untethered, collect data for an extended period of time and return to the surface for recovery can make precise oceanographic surveying more economically practical and more efficient. This thesis investigates several ... |
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| Advanced Engineering Laboratory Project Summaries 1994 |
APR 96 |
|
| Authors:
Daniel E. Frye; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
|
| The Advanced Engineering Laboratory of the Woods Hole Oceanographic Institution is a development laboratory within the Applied Ocean Physics and Engineering Department. Its function is the development of oceanographic instrumentation to test developing theories in oceanography and to enhance current research projects in other disciplines within the community. This report summarizes recent and ongoing projects performed by members of this laboratory. |
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| Turbulence Measurements with a Moored Instrument |
MAR 96 |
63 pages |
| Authors:
Rolf Lueck; D. Huang; D. Newman; J. Box; VICTORIA UNIV (BRITISH COLUMBIA) CENTRE FOR EARTH AND OCEAN RESEARCH
|
| A new, autonomous and moored microstructure measuring instrument has been tested in coastal waters. The instrument measures shear in the dissipation range of the wavenumber spectrum using 4 shear probes, temperature fluctuations using two FP-07 thermistors, temperature and salinity using three pairs of Seabird sensors, horizontal currents using 2 ducted rotors and a fluxgate compass, and body motions using three accelerometers and a pressure transducer. Data are sampled for 128 ... |
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| Support for FLIP/ORB |
MAR 96 |
6 pages |
| Authors:
Fred H. Fisher; SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA MARINE PHYSICAL LAB
|
| This project provided support for the operation, maintenance, and upgrade of the Research Platforms FLIP and ORB, both of which are operated by the Scripps Institution of Oceanography, University of California, San Diego. These platforms, owned by the U.S. Navy, are used principally in support of ASW research and development projects. Their stability characteristics, instrument deployment capabilities and mooring capabilities, make them unique platforms for obtaining ocean environmental data critical ... |
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| Data Telemetry and Acquisition System for Acoustic Signal Processing Investigations |
20 FEB 96 |
26 pages |
| Authors:
Michael A. Rupar; Joseph A. Goldstein; Timothy L. Krout; NAVAL RESEARCH LAB WASHINGTON DC
|
| This report describes the Satellite Vertical Line Array 32 channel system (SVLA-32) developed at the Naval Research Laboratory for use during open ocean acoustic signal processing investigations for remote data collection and system control. This system was used during the TTCP Environmental Signal Processing Experiment (TESPEX) exercises in the summer of 1994, and demonstrated its ability to provide real time collection of acoustic data over 32 channels, to perform onsite ... |
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| Design Considerations for Stretch Conductors in Oceanographic Moorings |
DEC 95 |
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| Authors:
Walter Paul; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
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| A copper conductor formed into a helical configuration like a telephone cord can stretch by extending its geometry without elongating the conductor itself. This report establishes the proper configuration of copper conductors arranged in a helical pattern around a fiber core which can be used as center of a nylon rope with at least 20 percent working stretch. The calculation procedure allows the determination of the conductor's helix angle or ... |
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| Winter 1993 Observations of Oceanography and Sediment Transport at the LEO-15 Site |
DEC 95 |
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| Authors:
J. D. Irish; J. F. Lynch; A. E. Newhall; N. Witzell; P. Traykovski; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
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| The NOAA National Underseas Research Program at Rutgers University is establishing a Long-term Ecosystem Observatory off New Jersey in 15 meters of water. As part of a bottom boundary layer study at this site, WHOA deployed a bottom instrument frame during the winter of 1993-94. The bottom instrument carried a current meter, a vertical array of optical backscattering sensors, temperature, pressure and conductivity sensors and an Acoustical Backscattering Sensor. The ... |
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OCEANOGRAPHIC EQUIPMENT
