Electromagnetic induction in the World Ocean

Автор: Fainberg E.B.
Журнал: Geophysical surveys
Номер: 4
Год издания: 1980
Первая страница: 157
Последняя страница: 171
Аннотация: The problem of electromagnetic induction in the World Ocean is one of the principal problems in modern geomagnetism. This is so not only because it leads to the possibility of studying the electrical conductivity of the Earth’s crust and upper mantle lying immediately below the ocean, but also because without a knowledge of the spatial characteristics of electromagnetic fields induced in the ocean and extending far towards the continents it is not possible to give detailed interpretations of electromagnetic soundings on the land. Depending on the dimensions of studied fields and the methods of their analysis the problem of electromagnetic induction in the oceans can be divided into two aspects: global and local investigations. For global investigations large-scale variations of the field comparable in dimensions with the continents and the oceans are studied. The object of local investigations is the fine structure of the field lying close to isolated islands, coastlines and so on. In the present paper, the general state of global investigations of electromagnetic induction in the oceans is considered and some new results obtained in the past few years in the U.S.S.R. are presented.
Добавил в систему: Файнберг Эдуард Борисович

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