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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# k' v/ y( v6 Z1 Z, \ G- K
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1 v U6 }8 Y6 ~6 {; X5 s, \& x7 S7 I
(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: Y( B) B; u2 y8 c
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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., T% e# X% H/ }, x" J1 w, d* B
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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).6 p& H4 S; l7 B" N6 e
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发表于 2012-4-2 21:27
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