A 3-DIMENSIONAL SELF-CONSISTENT COMPUTER-SIMULATION OF A GEOMAGNETIC-FIELD REVERSAL

被引:651
作者
GLATZMAIER, GA [1 ]
ROBERTS, PH [1 ]
机构
[1] UNIV CALIF LOS ANGELES, INST GEOPHYS & PLANETARY PHYS, LOS ANGELES, CA 90024 USA
关键词
D O I
10.1038/377203a0
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
A three-dimensional, self-consistent numerical model of the geodynamo is described, that maintains a magnetic field for over 40,000 years. The model, which Incorporates a finitely conducting inner core, undergoes several polarity excursions and then, near the end of the simulation, a successful reversal of the dipole moment. This simulated magnetic field reversal shares some features with real reversals of the geomagnetic field, and may provide insight into the geomagnetic reversal mechanism.
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页码:203 / 209
页数:7
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