Measurements of motionally induced voltage in the coastal zone of the Throat of the White Sea.
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Accession number;02A0508680
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| Title;Measurements of motionally induced voltage in the coastal zone of the Throat of the White Sea. |
| Author;
PALSHIN N A
(Shirshov Inst. Oceanology, Russian Acad. Sci., Moscow, Rus)
VANYAN L L
(Shirshov Inst. Oceanology, Russian Acad. Sci., Moscow, Rus)
PORAY-KOSHITS A M
(Shirshov Inst. Oceanology, Russian Acad. Sci., Moscow, Rus)
MATYUSHENKO V A
(Inst. Ecological Problems Of The North, Russian Acad. Sci., Arkhangelsk, Rus)
KAIKKONEN P
(Univ. Oulu, Oulu, Fin)
TIIKKAINEN J
(Univ. Oulu, Oulu, Fin)
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Journal Title;Earth, Planets Space
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Journal Code:G0106B
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ISSN:1343-8832
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VOL.54;NO.5;PAGE.433-441(2002)
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| Figure&Table&Reference;FIG.8, REF.21 |
| Pub. Country;Japan |
| Language;English |
| Abstract;The theoretical relationship between non-local motionally induced voltages(MIV) and tidal currents is validated with observations of natural low-frequency electric field at the coast of the Throat of the White Sea (northwestern Russia). The Throat of the White Sea is a strait of 50-km width and about 500-km length with depths varying from 20 to 50m connecting semi-closed White Sea basin with the Barents Sea. Strong tidal currents providing a reference signal for calibrating coastal measurements of non-local MIV characterize the Throat. The measurements were carried out simultaneously by means of two horizontal receiving on-land and land-sea antennas. Tidally driven MIV dominates in all time series obtained in the coastal zone of the Throat of the White Sea. Monitoring of non-local MIV within the coastal zone could be used for studies of wind tides, residual tidal circulation and temporal variability of a quasi-stationary current. MIV measurements offer an important advantage over traditional oceanographic methods (currents meters, etc.), because it works also in winter period (about 6 months) when the White Sea is covered by ice. The main disadvantage of this technique is a necessity to calibrate non-local MIV with some other oceanographic direct or remote measurements. (author abst.) |
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