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Sinking of Zealandia, Earth's hidden continent, linked to forging of the Pacific 'Ring of Fire'（图）
Sinking of Zealandia Earth hidden continent linked Pacific
2020/2/20
New findings from the expedition, funded largely by the U.S. National Science Foundation with contributions from more than 20 partner nations, were recently published in the Geological Society of Amer...
Exploring the Submarine Ring of Fire: Mariana Arc - Western Pacific
Western Pacific Exploring the Submarine Ring
2015/7/22
Sampling an erupting volcano at 550-m depth, discovering roiling pools of liquid sulfur at 400-m depth, watching tropical fish swimming amid fields of black smoker vents, and encountering a blizzard o...
On the Acoustic Characteristics of a Gulf Stream Cyclonic Ring
Acoustic Characteristics Gulf Stream Cyclonic Ring
2009/4/2
The acoustic properties of a cyclonic Gulf Stream ring have been studied with field data and ray computations. Cyclonic rings represent relatively low sound velocity regions with large horizontal grad...
Entrainment and Diffusion in a Gulf Stream Cyclonic Ring
Entrainment Diffusion Gulf Stream Cyclonic Ring
2009/3/24
The mixing and entrainment processes present in a cyclonic ring are investigated by means of a parametric model which is fitted to serial temperature data for a North Atlantic ring. The physical model...
An experiment to test the feasibility of tracking Gulf Stream rings with neutrally buoyant SOFAR floats was begun in September 1974. Three floats were launched at depths of 750, 1050 and 1080 m in a r...
Tracking a Gulf Stream Ring with a Free Drifting Surface Buoy
Gulf Stream Ring Free Drifting Surface Buoy
2009/3/7
A newly developed buoy which is free drifting and tracked by satellite was successfully used to measure the movement of a Gull Stream ring. The buoy, launched in a young ring at 36°15′N, 58°00′W, loop...
A Comparison of Cyclonic Ring Structures in the Northern Sargasso Sea
Cyclonic Ring Structures Northern Sargasso Sea
2009/2/23
Field observations provide a data base that supports a comparison of ring structures in terms of the background Sargasso Sea environment. Five ring surveys, three from the 1967 sequence, a big baby ri...
The Physical Oceanography of Two Rings Observed by the Cyclonic Ring Experiment. Part II：Dynamics
Physical Oceanography Dynamics Cyclonic Ring Experiment
2009/2/16
Data from the 1977 Cyclonic Ring Experiment is used to examine the, density, velocity, vorticity and energy distributions in a Gulf Stream cyclonic ring. A time series on ring BOB provides information...
The Physical Oceanography of Two Rings Observed by the Cyclonic Ring Experiment. Part I：Physical Structures
Cyclonic Ring Experiment Physical Structures
2009/2/16
Eight cruises over a 10-month period in the North Atlantic have provided the Cyclonic Ring Experiment with observations of two rings. Life histories, structure and structural changes have been studied...
During the period 1976–78, the movement of 14 Gulf Stream rings, including two anticyclonic and 12 cyclonic rings, was measured with satellite-tracked free-drifting buoys. The buoys in the cyclonic ri...
Generation and Evolution of a Cyclonic Ring at Drake Passage in Early 1979
Cyclonic Ring Drake Passage
2009/2/7
An equatorward meander in the Antarctic Polar Front at Drake Passage was observed to amplify and pinch off during January and early February 1979, forming a cold-core. cyclonic current fins with a rad...
Velocity and Hydrographic Structure of a Gulf Stream Warm-Core Ring
Gulf Stream Warm-Core Ring horizontal currents acoustic-Doppler system
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
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
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...
Gulf Stream Simulations and the Dynamics of Ring and Meander Processes
Gulf Stream Meander and Ring sea surface temperature energy and vorticity budget analyses
2009/1/6
We present here a regional, eddy resolving, numerical study of the dynamics of Gulf Stream Meander and Ring (GSMR) interaction processes. We initialize the Harvard quasi-geostrophic open-boundary mode...