Determination of vortex current structure in the high-latitude ionosphere with associated GIC bursts from ground magnetic data
Determination of vortex current structure in the high-latitude ionosphere with associated GIC bursts from ground magnetic data
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根据地面磁数据确定高纬度电离层中涡流结构以及相关 GIC 爆发
DOI:
10.1016/j.jastp.2020.105514
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发表时间:
2021
影响因子:
1.9
通讯作者:
Sakharov, YaA.
中科院分区:
文献类型:
--
作者:
Chinkin, V.E.;Soloviev, A.A.;Pilipenko, V.A.;Engebretson, M.J.;Sakharov, YaA.
The rapid changes of magnetic fields dB/dt that excite large geomagnetically induced currents (GICs) may be associated with quasi-periodic impulsive disturbances of the geomagnetic field with ~10–15 min duration (Ps6 pulsations). The paper proposes a data processing technique for a 2D array of magnetic stations that automatically recognizes eddy current structures in the polar ionosphere and evaluates their dynamic parameters, such as the density and scale of field-aligned currents, and velocity of horizontal propagation. This technique has been applied to analysis of the fine spatial-temporal structure of the nighttime Ps6 pulsations on June 29, 2013 recorded by IMAGE magnetometer array. This event produced very intense GICs in electric power lines in northwestern Russia. The new technique of data analysis has confirmed that Ps6 pulsations are produced by a quasi-periodic sequence of eastward drifting vortices driven by localized (radius ~200–250 km) field-aligned currents with densities up to ~5 μA/m2, whereas each vortex induces a GIC burst up to ~100 A.
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DOI:
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发表时间:
2002
期刊:
影响因子:
--
作者:
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通讯作者:
A. Ranta
影响因子:
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作者:
S. Apatenkov;V. Pilipenko;E. Gordeev;A. Viljanen;L. Juusola;V. Belakhovsky;Y. Sakharov;V. Selivanov
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V. Selivanov
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C. Forsyth;V. Sergeev;M. Henderson;Y. Nishimura;B. Gallardo‐Lacourt
DOI:
10.1134/s1069351318050130
发表时间:
2018
期刊:
Izvestiya, Physics of the Solid Earth
影响因子:
--
作者:
N. Yagova;V. Pilipenko;E. Fedorov;A. D. Lhamdondog;Yury P. Gusev
通讯作者:
Yury P. Gusev
DOI:
--
发表时间:
2019
期刊:
影响因子:
--
作者:
O. Kozyreva;V. Pilipenko;R. Krasnoperov;L. Baddeley;Y. Sakharov;M. Dobrovolsky
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