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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) w3 n9 c+ j2 N- r
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(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:
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( u _; x- a, e. Q; t- m }mz = -7.7 x 1022 A m2, mx = -0.479 x 1022 A m2, my = 1.399 x 1022 A m2./ `, I6 `/ P6 U0 n! f, W4 `" v2 F) h8 |
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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)./ X- J2 o& @5 `/ _( N, @8 }
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