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Mid-Ocean Ridge Exploration with an Autonomous Underwater Vehicle
Autonomous Underwater Vehicle Ocean
2015/7/22
Human-occupied submersibles, towed vehicles, and tethered remotely operated vehicles (ROVs) have traditionally been used to study the deep seafloor. In recent years, however, autonomous underwater veh...
Patterns of Life on the Southern Mid-Atlantic Ridge:Compiling What is Known and Addressing Future Research
Life on the Southern Mid-Atlantic Ridge Addressing Future Research
2015/7/15
The South Atlantic is one of the youngest of all the major oceans. It has prominent topographic features, in particular, the Mid-Atlantic Ridge. This feature largely determines deepwater circulation p...
Articles in this special issue of Oceanography represent a compendium of research that spans the disciplinary and thematic breadth of the National Science Foundation's Ridge 2000 Program, as well as i...
Endeavour Segment of the Juan de Fuca Ridge:One of the Most Remarkable Places on Earth
Endeavour Segment Juan de Fuca Ridge Most Remarkable Places Earth
2015/7/14
Endeavour Segment of the Juan de Fuca Ridge is one of three Integrated Study Sites for the Ridge 2000 Program. It is a remarkable, dynamic environment hosting five major hydrothermal fields, numerous ...
Recent Seismic Studies at the East Pacific Rise 8°20'–10°10'N and Endeavour Segment:Insights into Mid-Ocean Ridge Hydrothermal and Magmatic Processes
Seismic East Pacific Rise 8°20'–10°10'N Endeavour Segment:Mid-Ocean Ridge Hydrothermal Magmatic Processes
2015/7/14
As part of the suite of multidisciplinary investigations undertaken by the Ridge 2000 Program, new multichannel seismic studies of crustal structure were conducted at the East Pacific Rise (EPR) 8°20'...
Low-Temperature Hydrothermal Plumes in the Near-Bottom Boundary Layer at Endeavour Segment,Juan de Fuca Ridge
Low-Temperature Hydrothermal Plumes Near-Bottom Boundary Layer Endeavour Segment,Juan Fuca Ridge
2015/7/14
Low-temperature (typically 5–75°C) fluid, commonly referred to as "diffuse" hydrothermal flow, emanates from fractures over a significant portion of the Juan de Fuca Ridge seafloor in the Northeast Pa...
Chemistry,Temperature,and Faunal Distributions at Diffuse-Flow Hydrothermal Vents:Comparison of Two Geologically Distinct Ridge Systems
Chemistry Temperature Faunal Distributions Diffuse-Flow Hydrothermal Vents Two Geologically Distinct Ridge Systems
2015/7/14
Diffuse-flow, low-temperature areas near hydrothermal vents support life via chemosynthesis: hydrogen sulfide (and other reduced chemical compounds) emanating from the subsurface is oxidized with bott...
Estimating Zooplankton Biomass Distribution in the Water Column Near the Endeavour Segment of Juan de Fuca Ridge Using Acoustic Backscatter and Concurrently Towed Nets
Estimating Zooplankton Biomass Water Column Near Endeavour Segment Juan de Fuca Ridge Acoustic Backscatter Concurrently Towed Nets
2015/7/14
Logistical challenges, time, and the cost of towed net surveys make it difficult to obtain estimates of secondary biomass and production in the open ocean outside the summer sampling season. Alternate...
Bringing Mid-Ocean Ridge Discoveries to Audiences Far and Wide:Emerging Trends for the Next Generation
Mid-Ocean Ridge Audiences Far and Wide Emerging Trends
2015/7/14
The "Ridge" community has pioneered not only scientific exploration of and research on the global mid-ocean ridge system but also innovative and attractive ways of reaching out to the public with fasc...
Seamounts as Conduits for Massive Fluid,Heat,and Solute Fluxes on Ridge Flanks
Seamounts Massive Fluid Heat Solute Fluxes Ridge Flanks
2015/7/7
Seamounts play a fundamental role in facilitating the exchange of fluids, heat, and solutes between the oceanic lithosphere and the overlying ocean. Global heat flow compilations indicate that much of...
Wavelet ridge diagnosis of time-varying elliptical signals with application to an oceanic eddy
Wavelet ridge diagnosis time-varying elliptical signals oceanic eddy
2009/11/9
A method for diagnosing the physical properties of a time-varying ellipse is presented. This essentially involves extending the notion of instantaneous frequency to the bivariate case. New complicatio...
Morphology of a Baltic Sea Ice Pressure Ridge.
Some Effects of an Elliptic Ridge on Waves of Tidal Frequency
Elliptic Ridge Waves Tidal Frequency
2009/2/23
A numerical finite-difference model using the Laplace tidal equations on an f-plane was developed to predict how tidal motion is disturbed by an elliptic ridge. With the use of an open-ocean matching ...
Rossby Wave Driven Eulerian Mean Flows Along Non-Zonal Barriers, with Application to the Hawaiian Ridge
Rossby Wave Non-Zonal Barriers Hawaiian Ridge
2009/2/6
We show that the reflection of baroclinic Rossby waves from a non-zonal barrier generates a Eulerian mean flow along the barrier. In order to produce a mean current of realistic magnitude, friction (i...
Influence of a Mid-Ocean Ridge on Wind-Driven Barotropic Rossby Waves
Mid-Ocean Ridge Wind-Driven Barotropic Rossby Waves
2009/1/21
An analytical study investigates the influence of a mid-ocean ridge in a barotropic ocean on the energy radiation by wind-driven, quasi-geostrophic, linear Rossby waves. The ocean basin is bounded on ...