![]() ![]() Order low frequency to high frequency variations, in both the spaceĪnd time domains. ![]() ![]() Of scales and a description of these variations is now made, in the Observable at the Earth's surface has sources in the crust and in the In addition to sources in the Earth's core the magnetic field ElectricalĬurrents flowing in the slowly moving molten iron generate the magneticįield. In the fluid outer core by a self-exciting dynamo process. 2 Geomagnetic field observations 2.1 Definitions 2.2 Observatories 2.3 Satellites 2.4 Other direct observations 2.5 Indirect observationsģ Characteristics of the Earth's magnetic field 3.1 Reversals 3.2 The present magnetic field 3.3 Westward drift 3.4 Geomagnetic jerks 3.5 Crustal magnetic field 3.6 Field variations at quiet times 3.7 Field variations at disturbed timesĤ The Earth's magnetic field as both a tool and a hazard in the modern world 4.1 Navigation 4.2 Directional drilling 4.3 Geomagnetically induced currents 4.4 Satellite operations 4.5 Exploration geophysics ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |