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| Copyright © Klaus Piontzik | ||
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| German Version |
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The quantitative numeric Fourier analysis of the earth's magnetic field (IGRF 1984)
yields the following result for the magnetic flux density at the earth's surface:
4.5.2.1 - Equation: |
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The evaluation provides all three kinds of spherical harmonics,
so zonal, sectoral and tesseral forms, as well as a static part.
The zonal and sectoral part of the spherical harmonics can be grasped to one grid, called the grid ZS. This behaves then like a tesseral spherical harmonic, so as a grid. |
| 4.5.2.2 Equation: | grid ZS =
zonal + sectoral BZS = Bz + BS |
| Then the entire magnetic field can be represented like this: |
| 4.5.2.3 - Equation: | Btotal = Bstatic + BZS + Btesseral |
| Comment: In the equation 4.5.2.1 exist 17 intensity values that lie between one and eleven Mikrotesla liegen. All All other values are in the range of nano-Tesla!!! |
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200 sides, 23 of them in color 154 pictures 38 tables Production und Publishing: ISBN 978-3-7357-3854-7 Price: 25 Euro |
