 鲜花( 2)  鸡蛋( 0)
|
知道地球磁场的single dipole moment Mx, Mz,My如何求 相交的位置
) ]4 H2 k6 ~5 x# ^, d8 M8 s3 n0 p2 u, d) m v* b
4 j8 g: }0 y9 j2 ?# q! V+ B8 t# P' P( G. _6 ?8 Y. h0 D8 K7 e
(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:, ]; h+ o3 _9 S+ L5 v) @. ^/ k+ r
" \7 M4 \$ q+ @
mz = -7.7 x 1022 A m2, mx = -0.479 x 1022 A m2, my = 1.399 x 1022 A m2.% b. n3 Q, @5 T
1 N7 X+ m; D' w& `
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)./ }- |% o4 ^+ F# ?" f/ \( @1 T
|
|
狗仔卡
发表于 2012-4-2 21:27
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
显身卡