Variation in the rotation rate of the earth and the geomagnetic field

被引：0
作者：
P. Varga
Z. Bus
B. Süle
A. Schreider
C. Bizouard
D. Gambis
C. Denis
机构：
[1] Geodetic and Geophysical Research Institute,Seismological Observatory
[2] Shirsov Institute of Oceanology,Observatoire de Paris
[3] International Earth Rotation Service EOP PC,undefined
[4] Musée National d’Historie Naturelle de Luxembourg and European Centre for Geodynamics and Seismology,undefined
来源：
Acta Geodaetica et Geophysica Hungarica | 2007年 / 42卷
关键词：
centered geomagnetic dipole field; earth rotation; eccentric geomagnetic dipole field; length of day;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In its first part this work focuses on connection of length of day (LOD) with centered and eccentric geomagnetic dipole fields described with the use of Gaussian coefficients derived from global geomagnetic observations is discussed for the epoch 1900–2000. The statistical comparison of temporal variation of earth magnetic and astronomical data shows close correlation of geomagnetic dipole momentum M0 and ΔLOD. It should be mentioned that the time-correlation is closer when the centred geomagnetic dipole is used for statistical modelling. In the same time no relation was found between ΔLOD and the orientation variations of the geomagnetic dipole.
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页码：433 / 448
页数：15
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