TY - JOUR
T1 - Characteristic of the Disturbed Days Ionospheric Current System in the 180-Degree Magnetic Meridian
AU - Nurbaiti Ibrahim, Siti
AU - Huzaimy Jusoh, Mohammad
AU - Asari Sulaiman, Ahmad
AU - Yoshikawa, Akimasa
AU - Mohd Radzi, Zahira
N1 - Funding Information:
The authors have appreciated the MAGDAS/CPMN Group for providing data. This work by Akimasa Yoshikawa has been supported by MEXT/JSPS KAKENHI Grant 15H05815. The author also wants to thanks to national institute that provides geomagnetic observatory data for the INTERMAGNET’s network.
Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2019/3/4
Y1 - 2019/3/4
N2 - The behavior of the ionospheric current during disturbed days using 10 geomagnetic observatories along 180-degree magnetic meridian was analysed. Separation of external and internal current during geomagnetic storm on 12 April until 15 April 2012 data was carried out using spherical harmonic analysis method. The contour of day to day variation of total current, external current and internal current were distinguished based on geomagnetic storm phase. These current then were correlate with the solar wind parameter, IMF Bz, and geomagnetic indices in order to identify their relationship. The results reveal that these current intensities were found higher during the initial phase. This due to the enhancement of the magnetic field during the initial phase caused by the increment of solar wind dynamic pressure and southward IMF Bz. Hence, the induced current identified in the internal current. This study demonstrated that the electric current induction can be obtained from the weak geomagnetic storm.
AB - The behavior of the ionospheric current during disturbed days using 10 geomagnetic observatories along 180-degree magnetic meridian was analysed. Separation of external and internal current during geomagnetic storm on 12 April until 15 April 2012 data was carried out using spherical harmonic analysis method. The contour of day to day variation of total current, external current and internal current were distinguished based on geomagnetic storm phase. These current then were correlate with the solar wind parameter, IMF Bz, and geomagnetic indices in order to identify their relationship. The results reveal that these current intensities were found higher during the initial phase. This due to the enhancement of the magnetic field during the initial phase caused by the increment of solar wind dynamic pressure and southward IMF Bz. Hence, the induced current identified in the internal current. This study demonstrated that the electric current induction can be obtained from the weak geomagnetic storm.
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U2 - 10.1088/1742-6596/1152/1/012029
DO - 10.1088/1742-6596/1152/1/012029
M3 - Conference article
AN - SCOPUS:85063895339
VL - 1152
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012029
T2 - 1st International Conference on Space Weather and Satellite Application 2018, ICeSSAT 2018
Y2 - 7 August 2018 through 8 August 2018
ER -