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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! _7 f) y. E& e/ V. `4 U$ b4 a
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5 v0 K$ k# n6 N% m5 Q(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:& t6 b9 K3 b1 ?% C& e% m, S
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mz = -7.7 x 1022 A m2, mx = -0.479 x 1022 A m2, my = 1.399 x 1022 A m2.8 q8 R4 h! B8 O( @3 s
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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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