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Kamlman filter technique for defining solar regular geomagnetic variations

Kamlman filter technique for ... 2024-01-24

关键词:: Kalman filter; geomagnetic activity indices; solar regular geomagnetic variations

Defining Solar Regular(SR) geomagnetic variance can improve the accuracy of geomagnetic indices estimation. Based on geomagnetic data from 1998 to 2013 at Be...

作者:: 陈果,杜爱民,张莹,赵旭东
文件大小:: 2.6 MiB

Possible Anomalous Changes in Solar Quiet Daily Geomagnetic Variation (Sq) Related to the 2011 off the Pacific coast of Tohoku Earthquake (Mw 9.0)

Possible Anomalous Changes in... 2024-01-24

关键词:: geomagnetic; solar-terrestrial disturbances; vertical component

We investigated observational data from 20 geomagnetic observatories at longitudes of 130°E to 150°E between 2009 and 2012 in order to detect possible anomal...

作者:: Xiaocan Liu,Katsumi Hattori,Peng Han,Huaran Chen,Yoshino Chie,and Xudong Zhao
文件大小:: 5.1 MiB

Quasi-biennial oscillations in the geomagnetic field

Quasi-biennial oscillations i... 2024-01-24

关键词:: Quasi‐biennial oscillations; magnetospheric; polar regions

Quasi‐biennial oscillations (QBOs), with periods in the range 1–3 years, have been persistently observed in the geomagnetic field. They provide unique inform...

作者:: Jiaming Ou,Aimin Du,and Christopher C. Finlay
文件大小:: 2.6 MiB

The response of geomagnetic daily variation and ionospheric currents to the annular solar eclipse on 21 June 2020

The response of geomagnetic d... 2024-01-24

关键词:: Annular Solar Eclipse; Geomagnetic; lonospheric

In this study, we examined the response of geomagnetic daily variation and ionospheric currents to the solar annular eclipse that passed through China at 10:...

作者:: Liu,X.,Chen,J.,Han,P.,Lei,J.,Dang,T.,Huang,F.,et al.
文件大小:: 4.4 MiB