Report on the Geomagnetic Electrokinetograph (2nd). The General Theory of the Electric Potential Field Induced in Deep Ocean Currents

1948 ◽  
Author(s):  
Henry Stommel ◽  
William S. von Arx
Keyword(s):  
General Theory ◽  
Electric Potential ◽  
Potential Field ◽  
Deep Ocean ◽  
Ocean Currents ◽  
Electric Potential Field ◽  
Deep Ocean Currents

Using acoustic tomography to monitor deep ocean currents in the eastern Gulf of Mexico

OCEANS 2009 ◽  
2009 ◽  
Author(s):  
D. A. Rosenfield ◽  
J. W. Caruthers ◽  
D. A. Nechaev ◽  
G. E. Ioup ◽  
J. W. Ioup ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
Deep Ocean ◽  
Ocean Currents ◽  
Acoustic Tomography ◽  
Eastern Gulf Of Mexico ◽  
Deep Ocean Currents

A three-dimensional numerical modeling of thermoelectric device with consideration of coupling of temperature field and electric potential field

Energy ◽  
2012 ◽  
Vol 47 (1) ◽  
pp. 488-497 ◽  
Author(s):  
Xiao-Dong Wang ◽  
Yu-Xian Huang ◽  
Chin-Hsiang Cheng ◽  
David Ta-Wei Lin ◽  
Chung-Hao Kang
Keyword(s):  
Numerical Modeling ◽  
Temperature Field ◽  
Electric Potential ◽  
Potential Field ◽  
Three Dimensional ◽  
Thermoelectric Device ◽  
Electric Potential Field

Direct Measurements of Ocean Currents over the Continental Slope off Sydney

1979 ◽  
Vol 30 (6) ◽  
pp. 833 ◽  
Author(s):  
BV Hamon
Keyword(s):  
Continental Slope ◽  
Deep Ocean ◽  
Surface Current ◽  
Ocean Currents ◽  
North East ◽  
Direct Measurements ◽  
Deep Ocean Currents ◽  
Neutrally Buoyant ◽  
Tracking Period

The results of measurements of deep ocean currents over the continental slope off Sydney in May 1979 are presented and discussed. The measurements were made using neutrally buoyant floats. Four floats were used, at mean depths of 766, 1251, 1519 and 1886 m. All four floats moved towards north-north-east, approximately parallel to the depth contours, with mean speeds, over the 34-day tracking period, in the range 5-9 cm s-1. The surface current, estimated from ship's set, was towards north-east, at 25 cm s-1.

scholarly journals Generation of Hydroacoustic Waves by an Oscillating Ice Block in Arctic Zones

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Usama Kadri
Keyword(s):  
Free Surface ◽  
Ocean Circulation ◽  
Deep Ocean ◽  
Ocean Currents ◽  
Snowball Earth ◽  
Acoustic Modes ◽  
Time Harmonic ◽  
Arctic Conditions ◽  
Deep Ocean Currents ◽  
Harmonic Problem

The time harmonic problem of propagating hydroacoustic waves generated in the ocean by a vertically oscillating ice block in arctic zones is discussed. The generated acoustic modes can result in orbital displacements of fluid parcels sufficiently high that may contribute to deep ocean currents and circulation. This mechanism adds to current efforts for explaining ocean circulation from a snowball earth Neoproterozoic Era to greenhouse earth arctic conditions and raises a challenge as the extent of ice blocks shrinks towards an ice-free sea. Surprisingly, unlike the free-surface setting, here it is found that the higher acoustic modes exhibit a larger contribution.

scholarly journals Sunspot Magnetic Fields and High Energy Electrons in Flares

1971 ◽  
Vol 43 ◽  
pp. 390-396
Author(s):  
Tatsuo Takakura
Keyword(s):  
Magnetic Fields ◽  
Electric Potential ◽  
Potential Field ◽  
Large Scale ◽  
Plasma Waves ◽  
High Energy ◽  
Ohmic Loss ◽  
X Ray ◽  
High Energy Electrons ◽  
Electric Potential Field

A balloon observation of an impulsive hard X-ray burst on September 27, 1969 showed the size of the source to be one arc minute or less. It was remarkably smaller than the associated Hα flare with a size of 3 arc min.The efficient acceleration of electrons and the trigger of the flares are suggested to be attributed to a large scale electric potential field caused by a gas motion near the photosphere. The primary cause of the onset of flares would be the acceleration of electrons. The electrons excite plasma waves which make the conductivity lower by several orders, so that the electromagnetic energy I2L stored before the onset of the flare would be suddenly converted into the heat due to the ohmic loss.

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