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知道地球磁场的single dipole moment Mx, Mz,My如何求 相交的位置8 r. h' S* `5 C. u8 _
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' ` E0 n- @8 y9 R; @(2) The Earth’s main magnetic field at the surface (radius = 6371 km) can be approximated by a single dipole moment at the Earth's centre with the following (x,y,z) components:2 A9 v2 H- H; V: r: w) @$ b6 G
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mz = -7.7 x 1022 A m2, mx = -0.479 x 1022 A m2, my = 1.399 x 1022 A m2.
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Calculate the location (latitude, longitude) where the axis of this dipole field intersects the Earth's surface (i.e. where the magnetic field is locally purely vertical and upward).
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发表于 2012-4-2 21:27
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