关键词: 地球磁场, 角动量守恒定律, 强中纬力, 转动定律, 地球动力学, 向心力

Abstract:

Aiming at the problem of magnetic axis of the earth in the study of geomagnetic field origin, and based on analyzing geomagnetic field characteristics, the geomagnetic field may be categorized as different types in terms of its origin and its array configuration of formation. This paper proposes that the geomagnetic field not only has mutability and bipolarity but also has instantaneity and invariance, and the influencing factors are analyzed. The paper indicates that the geomagnetic field has a bipartite structure, and that different classified methods have different results, e.g., the geomagnetic field can be classified into dynamic magnetic field and law magnetic field, and it can be also classified into the magnetic field that turns around its own axis and the magnetic field that turns around the ecliptic pole axis. The geomagnetic field is a resultant magnetic field assembled by some individual magnetic fields. This study provides the condition for correctly understanding the constitution of the geomagnetic field.

Key words:  geomagnetic field, law of conservation of angular momentum, strong force of middle latitude, law of rotation, geodynamics, centripetal force