Report on the Geomagnetic Electrokinetograph (2nd). The General Theory of the Electric Potential Field Induced in Deep Ocean Currents
The Geomagnetic Electrokinetograph is an instrument of great simplicity which is capable of measuring the motions of sea water from a moving vessel. The motions of the sea may result from any cause, wind drift, waves, currents, and their eddies, tides, seiches, tsunamis or artifacts and still be sui...
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ftdtic:ADA077677 2023-05-15T17:35:37+02:00 Report on the Geomagnetic Electrokinetograph (2nd). The General Theory of the Electric Potential Field Induced in Deep Ocean Currents Stommel, Henry von Arx, William S. WOODS HOLE OCEANOGRAPHIC INSTITUTION MA 1948-01 text/html http://www.dtic.mil/docs/citations/ADA077677 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA077677 en eng http://www.dtic.mil/docs/citations/ADA077677 Approved for public release; distribution unlimited., Availability: Document partially illegible. DTIC AND NTIS Physical and Dynamic Oceanography Geomagnetism Electricity and Magnetism *OCEAN CURRENTS *HYDROGRAPHIC SURVEYING *OCEANOGRAPHIC EQUIPMENT *GEK DATA CONTINENTAL SHELVES TIDAL CURRENTS GULF STREAM NORTH ATLANTIC OCEAN ELECTROKINETICS OCEANOGRAPHIC SHIPS WUNR083004 Text 1948 ftdtic 2016-02-20T17:13:27Z The Geomagnetic Electrokinetograph is an instrument of great simplicity which is capable of measuring the motions of sea water from a moving vessel. The motions of the sea may result from any cause, wind drift, waves, currents, and their eddies, tides, seiches, tsunamis or artifacts and still be suitable objects of study. The basic performance of the instrument depends upon Faraday's Law of Electromagnetic Induction, particularly the special case which he mentioned in his Bakerian Lecture to the Royal Society in 1832: 'Theoretically, it seems a necessary consequence that where water is flowing, there electric currents should be formed: thus, if a line be imagined passing from Dover to Calais through the sea, and returning through the land beneath the water to Dover, it traces out a circuit of conducting matter, one part of which, when the water moves up or down the channel, is cutting the magnetic curves of the earth, whilst the other is relatively at rest . Where the lateral extent of the moving water is enormously increased, it does not seem improbable that the effect should become sensible; and the Gulf Stream may thus, perhaps, from electric currents moving across it, by magneto-electric induction from the earth. This is a clear statement of the effect which has subsequently been observed, but which Faraday himself failed to detect through a lack of suitable electrode materials. Includes first report dated Jun 47. Text North Atlantic Defense Technical Information Center: DTIC Technical Reports database Dover ENVELOPE(-55.753,-55.753,-83.777,-83.777) Faraday ENVELOPE(-64.256,-64.256,-65.246,-65.246) Gek ENVELOPE(101.183,101.183,-66.067,-66.067) |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Physical and Dynamic Oceanography Geomagnetism Electricity and Magnetism *OCEAN CURRENTS *HYDROGRAPHIC SURVEYING *OCEANOGRAPHIC EQUIPMENT *GEK DATA CONTINENTAL SHELVES TIDAL CURRENTS GULF STREAM NORTH ATLANTIC OCEAN ELECTROKINETICS OCEANOGRAPHIC SHIPS WUNR083004 |
spellingShingle |
Physical and Dynamic Oceanography Geomagnetism Electricity and Magnetism *OCEAN CURRENTS *HYDROGRAPHIC SURVEYING *OCEANOGRAPHIC EQUIPMENT *GEK DATA CONTINENTAL SHELVES TIDAL CURRENTS GULF STREAM NORTH ATLANTIC OCEAN ELECTROKINETICS OCEANOGRAPHIC SHIPS WUNR083004 Stommel, Henry von Arx, William S. Report on the Geomagnetic Electrokinetograph (2nd). The General Theory of the Electric Potential Field Induced in Deep Ocean Currents |
topic_facet |
Physical and Dynamic Oceanography Geomagnetism Electricity and Magnetism *OCEAN CURRENTS *HYDROGRAPHIC SURVEYING *OCEANOGRAPHIC EQUIPMENT *GEK DATA CONTINENTAL SHELVES TIDAL CURRENTS GULF STREAM NORTH ATLANTIC OCEAN ELECTROKINETICS OCEANOGRAPHIC SHIPS WUNR083004 |
description |
The Geomagnetic Electrokinetograph is an instrument of great simplicity which is capable of measuring the motions of sea water from a moving vessel. The motions of the sea may result from any cause, wind drift, waves, currents, and their eddies, tides, seiches, tsunamis or artifacts and still be suitable objects of study. The basic performance of the instrument depends upon Faraday's Law of Electromagnetic Induction, particularly the special case which he mentioned in his Bakerian Lecture to the Royal Society in 1832: 'Theoretically, it seems a necessary consequence that where water is flowing, there electric currents should be formed: thus, if a line be imagined passing from Dover to Calais through the sea, and returning through the land beneath the water to Dover, it traces out a circuit of conducting matter, one part of which, when the water moves up or down the channel, is cutting the magnetic curves of the earth, whilst the other is relatively at rest . Where the lateral extent of the moving water is enormously increased, it does not seem improbable that the effect should become sensible; and the Gulf Stream may thus, perhaps, from electric currents moving across it, by magneto-electric induction from the earth. This is a clear statement of the effect which has subsequently been observed, but which Faraday himself failed to detect through a lack of suitable electrode materials. Includes first report dated Jun 47. |
author2 |
WOODS HOLE OCEANOGRAPHIC INSTITUTION MA |
format |
Text |
author |
Stommel, Henry von Arx, William S. |
author_facet |
Stommel, Henry von Arx, William S. |
author_sort |
Stommel, Henry |
title |
Report on the Geomagnetic Electrokinetograph (2nd). The General Theory of the Electric Potential Field Induced in Deep Ocean Currents |
title_short |
Report on the Geomagnetic Electrokinetograph (2nd). The General Theory of the Electric Potential Field Induced in Deep Ocean Currents |
title_full |
Report on the Geomagnetic Electrokinetograph (2nd). The General Theory of the Electric Potential Field Induced in Deep Ocean Currents |
title_fullStr |
Report on the Geomagnetic Electrokinetograph (2nd). The General Theory of the Electric Potential Field Induced in Deep Ocean Currents |
title_full_unstemmed |
Report on the Geomagnetic Electrokinetograph (2nd). The General Theory of the Electric Potential Field Induced in Deep Ocean Currents |
title_sort |
report on the geomagnetic electrokinetograph (2nd). the general theory of the electric potential field induced in deep ocean currents |
publishDate |
1948 |
url |
http://www.dtic.mil/docs/citations/ADA077677 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA077677 |
long_lat |
ENVELOPE(-55.753,-55.753,-83.777,-83.777) ENVELOPE(-64.256,-64.256,-65.246,-65.246) ENVELOPE(101.183,101.183,-66.067,-66.067) |
geographic |
Dover Faraday Gek |
geographic_facet |
Dover Faraday Gek |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA077677 |
op_rights |
Approved for public release; distribution unlimited., Availability: Document partially illegible. |
_version_ |
1766134829195198464 |