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Articles 61 - 90 of 208
Full-Text Articles in Oceanography
Fall 2010, Nsu Oceanographic Center
Operation And Application Of A Regional High-Frequency Radar Network In The Mid-Atlantic Bight, Hugh Roarty, Scott Glenn, Josh Kohut, Donglai Gong, Ethan Handel, Erick Rivera, Teresa Garner, Larry Atkinson, Wendell Brown, Chris Jakubiak, Mike Muglia, Sara Haines, Harvey Seim
Operation And Application Of A Regional High-Frequency Radar Network In The Mid-Atlantic Bight, Hugh Roarty, Scott Glenn, Josh Kohut, Donglai Gong, Ethan Handel, Erick Rivera, Teresa Garner, Larry Atkinson, Wendell Brown, Chris Jakubiak, Mike Muglia, Sara Haines, Harvey Seim
CCPO Publications
The Mid-Atlantic Regional Coastal Ocean Observing System (MARCOOS) High- Frequency Radar Network, which comprises 13 long-range sites, 2 medium-range sites, and 12 standard-range sites, is operated as part of the Integrated Ocean Observing System. This regional implementation of the network has been operational for 2 years and has matured to the point where the radars provide consistent coverage from Cape Cod to Cape Hatteras. A concerted effort was made in the MARCOOS project to increase the resiliency of the radar stations from the elements, power issues, and other issues that can disable the hardware of the system. The quality control …
Winter 2010, Nsu Oceanographic Center
Terrain Constrained Stereo Correspondence, Gabrielle Inglis, Chris Roman
Terrain Constrained Stereo Correspondence, Gabrielle Inglis, Chris Roman
Graduate School of Oceanography Faculty Publications
There is a persistent need in the oceanographic community for accurate three dimensional reconstructions of seafloor structures. To meet this need underwater mapping techniques have expanded to include the use of stereo vision and high frequency multibeam sonar for mapping scenes 10's to 100's of square meters in size. Both techniques have relative advantages and disadvantages that depend on the task at hand and the desired accuracy. In this paper, we develop a method to constrain the often problematic stereo correspondence search to small sections of the image that correspond to estimated ranges along the epipolar lines calculated from coregistered …
Summer/Fall 2009, Nsu Oceanographic Center
Development Of A New Lagrangian Float For Studying Coastal Marine Ecosystems, Alex Schwithal, Chris Roman
Development Of A New Lagrangian Float For Studying Coastal Marine Ecosystems, Alex Schwithal, Chris Roman
Graduate School of Oceanography Faculty Publications
This paper presents an overview and initial testing results for a shallow water Lagrangian float designed to operate in coastal settings. The presented effort addresses the two main characteristics of the shallow coastal environment that preclude the direct of use of many successfully deep water floats, namely the higher variation of water densities near the coast compared with the open ocean and the highly varied bathymetry. Our idea is to develop a high capacity dynamic auto-ballasting system that is able to compensate for the expected seawater density variation over a broad range of water temperatures and salinities while using measurements …
Spring 2009, Nsu Oceanographic Center
Winter 2009, Nsu Oceanographic Center
Fall 2008, Nsu Oceanographic Center
Deep Sea Underwater Robotic Exploration In The Ice-Covered Arctic Ocean With Auvs, Clayton Kunz, Chris Murphy, Richard Camilli, Hanumant Singh, John Bailey, Ryan M. Eustice, Chris Roman, Michael Jakuba, Claire Willis, Taichi Sato, Ko-Ichi Nakamura, Robert A. Sohn
Deep Sea Underwater Robotic Exploration In The Ice-Covered Arctic Ocean With Auvs, Clayton Kunz, Chris Murphy, Richard Camilli, Hanumant Singh, John Bailey, Ryan M. Eustice, Chris Roman, Michael Jakuba, Claire Willis, Taichi Sato, Ko-Ichi Nakamura, Robert A. Sohn
Graduate School of Oceanography Faculty Publications
The Arctic seafloor remains one of the last unexplored areas on Earth. Exploration of this unique environment using standard remotely operated oceanographic tools has been obstructed by the dense Arctic ice cover. In the summer of 2007 the Arctic Gakkel Vents Expedition (AGAVE) was conducted with the express intention of understanding aspects of the marine biology, chemistry and geology associated with hydrothermal venting on the section of the mid-ocean ridge known as the Gakkel Ridge. Unlike previous research expeditions to the Arctic the focus was on high resolution imaging and sampling of the deep seafloor. To accomplish our goals we …
Summer 2008, Nsu Oceanographic Center
Variable Morphologic Expression Of Volcanic, Tectonic, And Hydrothermal Processes At Six Hydrothermal Vent Fields In The Lau Back-Arc Basin, Vicki Lynn Ferrini, Margaret K. Tivey, Suzanne M. Carbotte, Fernando Martinez, Chris Roman
Variable Morphologic Expression Of Volcanic, Tectonic, And Hydrothermal Processes At Six Hydrothermal Vent Fields In The Lau Back-Arc Basin, Vicki Lynn Ferrini, Margaret K. Tivey, Suzanne M. Carbotte, Fernando Martinez, Chris Roman
Graduate School of Oceanography Faculty Publications
Ultrahigh-resolution bathymetric maps (25 cm grid) are used to quantify the physical dimensions of and spatial relationships between tectonic, volcanic, and hydrothermal features at six hydrothermal vent fields in the Lau back-arc basin. Supplemented with near-bottom photos, and nested within regional DSL-120A side-scan sonar data, these maps provide insight into the nature of hydrothermal systems along the Eastern Lau Spreading Center (ELSC) and Valu Fa Ridge (VFR). Along-axis transitions evident in localized volcanic morphology and tectonic characteristics include a change from broad low-relief volcanic domes (hundreds of meters wide,tall) that are dominated by pillow and lobate lava morphologies and are …
Time Post-Hatch Caloric Value Of Artemia Salina, Jessie M. Sanders
Time Post-Hatch Caloric Value Of Artemia Salina, Jessie M. Sanders
Senior Honors Projects
In aquatic animal collections, such as those in the collection of Mystic Aquarium & Institute for Exploration’s Fish & Invertebrate department, live food is an essential part of the diet of animals that are on display, used in education, and kept in reserve for exhibits. For Mystic Aquarium’s Fish & Invertebrate department, newly hatched Artemia salina, or brine shrimp, are fed to an assortment of fishes and invertebrates, including soft corals and jellyfish. Hatch brine is an important source of fatty acids, which are essential for proper growth and development. Hatch brine starts encapsulated in a cyst form and are …
Spring 2008, Nsu Oceanographic Center
Winter 2008, Nsu Oceanographic Center
Byzantium Beneath The Black Sea, Bridget Buxton, Robert Ballard, Michael Brennan, Dwight Coleman, Katy Croff, Christopher Roman, Dan Davis, Dennis Piechota, Sergiy Voronov
Byzantium Beneath The Black Sea, Bridget Buxton, Robert Ballard, Michael Brennan, Dwight Coleman, Katy Croff, Christopher Roman, Dan Davis, Dennis Piechota, Sergiy Voronov
Graduate School of Oceanography Faculty Publications
This poster reports on the August 2007 Black Sea Expedition of the Institute for Archaeological Oceanography at the University of Rhode Island (IAO) and the Institute for Exploration (IFE), in collaboration with the Department of the Underwater Heritage of Ukraine. This year’s work marks a new phase in a multi-year (2000–2012) archaeological and oceanographic survey of the Black Sea. 2007 fieldwork focuses on two Byzantine shipwrecks. The 10th century C.E. shipwreck Chersonesos A (discovered in 2006) lies at 140 m depth in the suboxic zone off the Crimean peninsula. The ship carried a cargo of one-handled jars of a widely …
Summer/Fall 2007, Nsu Oceanographic Center
Spring 2007, Nsu Oceanographic Center
Winter 2007, Nsu Oceanographic Center
Fall 2006, Nsu Oceanographic Center
Marine Investigations Of Greece's Santorini Volcanic Field, Haraldur Sigurdsson, Steven Carey, Matina Alexandri, Georges Vougioukalakis, Katherine Croff, Chris Roman, Dimitris Sakellariou, Christos Anagnostou, Grigoris Rousakis, Chrysanti Ioakim, Aleka Goguo, Dionysis Ballas, Thanassis Misaridis, Paraskevi Nomikou
Marine Investigations Of Greece's Santorini Volcanic Field, Haraldur Sigurdsson, Steven Carey, Matina Alexandri, Georges Vougioukalakis, Katherine Croff, Chris Roman, Dimitris Sakellariou, Christos Anagnostou, Grigoris Rousakis, Chrysanti Ioakim, Aleka Goguo, Dionysis Ballas, Thanassis Misaridis, Paraskevi Nomikou
Graduate School of Oceanography Faculty Publications
The most recent major explosive eruption of the Santorini volcano in Greece—around 3600 years before present (B.P.), often referred to as the Minoan eruption—is one of the largest volcanic events known in historical time and has been the subject of intense volcanological and archeological studies [Druitt et al., 1999]. The submarine volcano Kolumbo, located seven kilometers northeast of Santorini and associated with Santorini's tectonic system, erupted explosively in 1650 A.D., resulting in fatalities on the island of Thera [Fouqué, 1879]. A large fraction of the erupted products from the Minoan eruption has been deposited in the …
Summer 2006, Nsu Oceanographic Center
Spring 2006, Nsu Oceanographic Center
Hydrographic Observations During The 2002 Ioc Contaminant Baseline Survey In The Western Pacific Ocean, C. I. Measures, Greg A. Cutter, W. M. Landing, R. T. Powell
Hydrographic Observations During The 2002 Ioc Contaminant Baseline Survey In The Western Pacific Ocean, C. I. Measures, Greg A. Cutter, W. M. Landing, R. T. Powell
OES Faculty Publications
The 2002 IOC Contaminant Baseline Survey in the western Pacific Ocean was the fourth in a series of cruises intended to establish the contemporary concentrations of trace elements and other materials in the major water masses of the ocean and to illuminate the pathways by which materials delivered to the surface ocean are incorporated in the subsurface waters. The expedition occupied 9 vertical profile stations encompassing the subtropical and subarctic gyre of the western North Pacific. In addition, underway surface water samples were collected during transits between the stations. This paper uses the temperature, salinity, nutrient, oxygen, and chlorophyll data …
Winter 2006, Nsu Oceanographic Center
Fall 2005, Nsu Oceanographic Center
Summer 2005, Nsu Oceanographic Center
Spring 2005, Nsu Oceanographic Center
Women In Oceanography: Women Of The Academy And The Sea, Suzanne O'Connell, Mary Anne Holmes
Women In Oceanography: Women Of The Academy And The Sea, Suzanne O'Connell, Mary Anne Holmes
Department of Earth and Atmospheric Sciences: Faculty Publications
Women have played an active role in all areas of oceanography. Defining the number of women oceanographers is not an easy task because the discipline is so broad and the boundaries between subdisciplines are not always distinct.
Winter 2005, Nsu Oceanographic Center