| Автор | Paul Lorrain |
| Дата выпуска | 1993-03-01 |
| dc.description | The rotation of the conducting core of the earth in its own magnetic field generates both a v × B field and a competing electrostatic field - ∇V. These two fields together excite toroidal currents, and therefore azimuthal magnetic fields, on the condition that v and B satisfy a certain general condition within the core. Ferraro's law of isorotation is valid, but it concerns a special case. We calculate these azimuthal magnetic fields, first with the core rotating as a solid, and then differentially, with the angular velocity a function of the axial coordinate and a function of the radial coordinate. Our straightforward calculation shows that these azimuthal fields are much weaker than is usually believed. The computer codes are available from the author. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Azimuthal magnetic fields in the Earth's core |
| Тип | paper |
| DOI | 10.1088/0031-8949/47/3/016 |
| Electronic ISSN | 1402-4896 |
| Print ISSN | 0031-8949 |
| Журнал | Physica Scripta |
| Том | 47 |
| Первая страница | 461 |
| Последняя страница | 468 |
| Аффилиация | Paul Lorrain; Institut de Physique du Globe de Paris, Tour 24-25, Place Jussieu, 75252 Paris Cedex 05, France |
| Выпуск | 3 |
