How Does Temporal Resolution Influence Geomagnetic Reversal Statistics?
How Does Temporal Resolution Influence Geomagnetic Reversal Statistics?
复制标题
时间分辨率如何影响地磁反转统计?
DOI:
10.1029/2019gl082976
复制
发表时间:
2019
影响因子:
5.2
通讯作者:
Avery, M. S.
中科院分区:
文献类型:
--
作者:
Buffett, B.;Avery, M. S.
Polarity intervals from marine magnetic anomalies exhibit variability that departs from a Poisson process. The deficit of short polarity intervals is well represented by a Weibull distribution with a shape parameterk>1. Polarity intervals from a stochastic model also obey a Weibull distribution, but the shape parameter is controlled by the temporal averaging used to approximate the resolution of the marine record. Reducing the time averaging yields polarity intervals that are well described by a distribution withk<1, suggesting that short polarity intervals are missing from the marine record. All of these missing polarity intervals are expected to occur when the dipole field is weak relative to the time average, often during transition states. We associate many of these short polarity intervals with frequent changes in the sign of the dipole during the transition. These short polarity intervals should be detectable in high‐resolution observations of magnetic directions.
登录
查看更多内容
影响因子:
5.3
作者:
J. Gee;D. Schneider;D. Kent
通讯作者:
J. Gee;D. Schneider;D. Kent
影响因子:
2.3
作者:
通讯作者:
--
影响因子:
5.3
作者:
Constable, Catherine;Korte, Monika;Panovska, Sanja
通讯作者:
Panovska, Sanja
DOI:
--
发表时间:
1971
期刊:
影响因子:
--
作者:
P. Naidu
通讯作者:
P. Naidu
影响因子:
2.3
作者:
J. Valet;G. Plenier
通讯作者:
J. Valet;G. Plenier