地磁偏角 Magnetic declination
(重定向自Compass variation)



地磁偏角是指地球上任一处的磁北方向和正北方向之间的夹角。当地磁北向实际偏东时,地磁偏角为正,反之为负。
单词 | Compass variation |
释义 |
Compass variation
中文百科
地磁偏角 Magnetic declination(重定向自Compass variation)
![]() ![]() ![]() 地磁偏角是指地球上任一处的磁北方向和正北方向之间的夹角。当地磁北向实际偏东时,地磁偏角为正,反之为负。
英语百科
Magnetic declination 地磁偏角(重定向自Compass variation)
![]() ![]() ![]() ![]() Magnetic declination or variation is the angle on the horizontal plane between magnetic north (the direction the north end of a compass needle points, corresponding to the direction of the Earth's magnetic field lines) and true north (the direction along a meridian towards the geographic North Pole). This angle varies depending on position on the Earth's surface, and changes over time. |
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