What is the earth's magnetic field?

The earth and near space, to the magnetic field in the terrestrial planets in the magnetic field strength is the biggest of all.Earth magnetic field comes mainly from the interior of the earth, and from the outer space is less than 1% of ingredients, can see the main geomagnetic field as a dipole magnetic field.It existed in two between north and South Pole attachment, said the two poles of shaft magnetic axis.Magnetic axis is not coincide with the earth's rotation, has 11 degrees Angle.The solar wind, cosmic rays, the ionosphere, the aurora and so on all have an effect on the magnetic field, they make the geomagnetic field change in the short term.The solar wind will cause the geomagnetic field is limited in a certain range.When solar activity is stronger, the energy of the solar wind will greatly increase, resulting in strong disturbance of the geomagnetic field.