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International team reports ocean acidification spreading rapidly in Arctic Ocean
International team reports ocean acidification spreading rapidly Arctic Ocean
2017/3/14
Ocean acidification (OA) is spreading rapidly in the western Arctic Ocean in both area and depth, according to new interdisciplinary research reported in Nature Climate Change by a team of internation...
Hunting for Hydrothermal Vents Along the Galápagos Spreading Center
Galápagos Spreading Center Hydrothermal Vents
2015/7/22
In 1972, at a location in the eastern equatorial Pacific ~ 200 miles northeast of the Galápagos Islands, a young graduate student researcher was using surplus US Navy sonobuoys to listen to the portio...
Diversity of Hydrothermal Systems on Slow Spreading Ocean Ridges
Slow Spreading Ocean Ridges Hydrothermal Systems
2015/7/16
The global mid-ocean ridge system spreads over a spectrum of rates, and oceanic crust formed at slow and ultra-slow spreading ridges (< 40 mm yr–1) differs from the more "ideal" layered structure form...
The East Pacific Rise Between 9°N and 10°N:Twenty-Five Years of Integrated,Multidisciplinary Oceanic Spreading Center Studies
East Pacific Rise Between 9°N and 10°N Twenty-Five Years of Integrated Multidisciplinary Oceanic Spreading Center Studies
2015/7/14
The East Pacific Rise from ~ 9–10°N is an archetype for a fast-spreading mid-ocean ridge. In particular, the segment near 9°50'N has been the focus of multidisciplinary research for over two decades, ...
Links from Mantle to Microbe at the Lau Integrated Study Site:Insights from a Back-Arc Spreading Center
Links from Mantle Microbe Lau Integrated Study Site Back-Arc Spreading Center
2015/7/14
The Lau Integrated Study Site (ISS) has provided unique opportunities for study of ridge processes because of its back-arc setting in the southwestern Pacific. Its location allows study of a biogeogra...
Active Long-Lived Faults Emerging Along Slow-Spreading Mid-Ocean Ridges
Long-Lived Faults Emerging Slow-Spreading Mid-Ocean Ridges
2015/7/14
In the classic mid-ocean ridge model, new seafloor is generated through a combination of magmatic diking feeding lava flows at the spreading axis, and the formation of short-offset, high-angle normal ...
Hydroacoustic Monitoring of Oceanic Spreading Centers:Past,Present,and Future
Hydroacoustic Monitoring Oceanic Spreading Centers Past Present Future
2015/7/14
Mid-ocean ridge volcanism and extensional faulting are the fundamental processes that lead to the creation and rifting of oceanic crust, yet these events go largely undetected in the deep ocean. Curre...
Mechanism behind Sea-Floor Spreading.
A Heton Model of the Spreading Phase of Open-Ocean Deep Convection
Heton Model Open-Ocean Deep Convection cold water
2008/12/18
A point-vortex heton model of the lateral dispersion of cold water formed in open-ocean deep convection is developed and studied as an idealized representation of the sinking and spreading phase of op...
The Spreading of Lower Circumpolar Deep Water in the Atlantic Ocean
Lower Circumpolar Deep Water Atlantic Ocean Stommel-Arons model
2008/12/12
A Stommel-Arons model of the circulation of Lower Circumpolar Deep Water (LCDW) in the Atlantic Ocean is presented and compared with observations. The LCDW is defined as a layer of uniform thickness o...
Mixing and Spreading of the Mediterranean Outflow
expendable current profiler expendable dissipation profiler
2008/11/26
Hydrographic and current profiler data taken during the 1988 Gulf of Cadiz Expedition have been analyzed to diagnose the mixing, spreading, and descent of the Mediterranean outflow. The θ–S properties...
A Method for Improved Representation of Dense Water Spreading over Topography in Geopotential-Coordinate Models
Geopotential-Coordinate Models ocean circulation models
2008/11/17
A new technique for incorporating processes of near-bottom tracer transport over sloping topography in geopotential-coordinate ocean circulation models is presented. It is based on a “hybrid” approach...
Mechanisms for Spreading of Mediterranean Water in Coarse-Resolution Numerical Models
Mediterranean Water Coarse-Resolution
2008/7/21
Different processes have been proposed to explain the large-scale spreading of Mediterranean Water (MW) in the North Atlantic, however, no systematic study comparing the efficiency of different proces...
A Basinwide Estimate of Vertical Mixing in the Upper Pycnocline: Spreading of Bomb Tritium in the North Pacific Ocean
Basinwide Estimate Vertical Mixing Upper Pycnocline Bomb Tritium North Pacific Ocean
2008/7/21
The vertical diffusivity KV in the upper half-kilometer of the North Pacific subtropical pycnocline is estimated from observations of the spreading rate of anthropogenic tritium. The calculation is ba...
Lagrangian Observations of the Deep Western Boundary Current in the North Atlantic Ocean. Part I: Large-Scale Pathways and Spreading Rates
Deep Western Boundary Current North Atlantic Ocean Large-Scale Pathways Spreading Rates
2008/6/30
Twenty-six RAFOS floats were deployed in the deep western boundary current (DWBC) of the North Atlantic Ocean between the Grand Banks and Cape Hatteras in 1994–95 and tracked acoustically for up to tw...