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Scientists drilling first deep ice core at the South Pole（图）
Scientists deep ice core at the South Pole
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2015/3/4
This winter, when many people’s imaginations were fixed on the North Pole, a small group of scientists has been working on the other side of the planet. In round-the-clock daylight and frigid temperat...
Development of Miniature Full Flow and Model Pipeline Probes for Testing of Box Core Samples of Surficial Seabed Sediments
box core sampling of seabed sediments cyclic t-bar testing full flow penetrometers intact and remolded undrained shear strength t-bar and ball toroid and model pipeline testing
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2014/11/4
The box corer is a relatively new tool used in the geotechnical community for collection of soft seabed sediments. Miniature full flow and model pipeline probes were developed as tools to characterize...
Velocity and Hydrographic Structure of a Gulf Stream Warm-Core Ring
Gulf Stream Warm-Core Ring horizontal currents acoustic-Doppler system
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2009/1/20
The hydrographic and velocity structure of Gulf Stream warm-core ring 81D are investigated using a deep CTD–O2 section through the ring together with horizontal currents at 100 m depth obtained with a...
Wintertime Convection in a Gulf stream Warm Core Ring
Wintertime Convection Gulf stream Warm Core Ring
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2009/1/16
Wintertime convection creates deep mixed layers which determine the water mass characteristics and potential vorticity for waters in the main pycnocline of the world ocean. Diabatic cooling is most in...
The Mean and Near-Inertial Velocity Fields in a Warm-Core Ring
Mean Warm-Core Ring Near-Inertial Velocity Fields
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2009/1/12
Velocity and temperature profiles collected in warm-core ring 82-I in January 1983 are used to describe the mean and fluctuating fields of the ring. The ring was relatively small, containing no Sargas...
Linear Stability of Large, Elliptical Warm-Core Rings
Linear Stability Elliptical Warm-Core Rings
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2009/1/12
An analytical solution for a confined, elliptical lens of light water is perturbed to test the linear stability of elongated warm-core rings. The asymptotic expression of the solution when the eddy's ...
Mixing and Intrusions in a Rotating Cold-Core Feature off Cape Blanco, Oregon
surface water temperature surface structure turbulence-free
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2009/1/5
During August 1986, a large cold anomaly was observed in satellite and in situ measurements near Cape Blanco at 42°N, 126°30′W off the Pacific Coast. Detailed vertical profiles of temperature, conduct...
Intense cooling of a warm-core ring or warming of the fluids surrounding a ring can increase the density of that ring relative to the surrounding fluids. This increase in density can cause the ring to...
Translational Velocity of Warm Core Rings Relative to the Slope Water
Translational Velocity Warm Core Rings Slope Water
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2009/1/4
Five warm Core rings were examined during short time intervals using thermal infrared satellite imagery. A total of 12 pairs of observations of these rings were made, all east of 72°W. The observation...
Interactions of Cold- and Warm-Core Rings with Environmental Shear
Environmental Shear Cold Warm-Core Rings
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2009/1/4
A two-layer analytical model of cold- and warm-core rings has been constructed to explore steady interactions of isolated eddies with horizontally sheared flows around and below the eddies. Steady inv...
Space—Time Variability of the Deep Western Boundary Current Oxygen Core
Deep Western Boundary Current Gulf Stream Space—Time Variability
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2008/12/22
Twelve historical CTD/oxygen sections between the Grand Banks and Cape Hatteras, occupied over the time period 1981–85, are analyzed to investigate the variability of the Deep Western Boundary Current...
Separation of Warm-Core Rings in the Gulf of Mexico
Warm-Core Rings Mexico anticyclonic rings
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2008/12/17
The separation of anticyclonic rings is studied using a 12-level primitive equation numerical model of the western North Atlantic. The “Gulf Stream Formation Region” model is based on the Bryan-Cox-Se...
A Numerical Simulation of the Evolution and Propagation of Gulf Stream Warm Core Rings
Numerical Simulation Evolution Propagation Gulf Stream Warm Core Rings
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2008/12/15
The evolution and propagation of Gulf Stream warm core rings in a flat-bottom, β-plane ocean are studied using a three-dimensional primitive equation model. Rings are produced by a heat source that is...
Elliptical Warm-Core Rings in a Two-Layer Ocean with Ambient Shear
Warm-Core Rings Ambient Shear Two-Layer Ocean
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2008/12/12
The rodon solution for an elliptical vortex with outcropping interface is extended from the reduced-gravity limit to the two-layer model. Motions in the lower layer consist of a reaction to the presen...
Geostrophic Vortex Merger and Streamer Development in the Ocean with Special Reference to the Merger of Kuroshio Warm Core Rings
quasigeostrophic shallow-water Kuroshio Warm Core Rings Geostrophic Vortex Merger
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2008/12/11
A simple, quasigeostrophic, two-layer model was used to study the interactions of two like-signed vortices and streamer development in the ocean. In particular, models corresponding to the observed me...