TY - GEN
T1 - Statistical study of equatorial geomagnetic crochets
AU - Annadurai, Norhani Muhammad Nasir
AU - Hamid, Nurul Shazana Abdul
AU - Yoshikawa, Akimasa
N1 - Funding Information:
We would like to thank all the members of the MAGDAS project for their cooperation and contribution to this study. Financial resource is sponsored by National University of Malaysia and The Ministry of Education Malaysia usinggrantGUP-2016-016.
Publisher Copyright:
© 2019 Author(s).
PY - 2019/6/27
Y1 - 2019/6/27
N2 - This study present the statistical investigation of equatorial geomagnetic crochets due to strong solar flare of class M to X. Our analysis utilized data from eight magnetometer stations provided by MAGnetic Data Acquisition System network (MAGDAS) at different longitudes sector during period from January 2008 to March 2015. We have considered 52 cases of solar flare events. Based on our analysis, 65% of the studied solar flares show no effect on geomagnetic variation with most of it from class M8, M9 and X1. The absence of solar flare effect might due to the influence of coronal mass ejection (CME) on the observation data or due to the station's location is at nighttime. The other 35% shows geomagnetic crochets to the magnetic data variation where majority are mix effect dominated by positive crochets. Apart from that, we also found an interesting solar flare effect where negative geomagnetic crochets were detected from all equatorial magnetometer data. The unique effect is due to X-class solar flare on 9th August 2011. Further investigation using extended latitudinal and longitudinal magnetometer is recommended to observe the whole picture of the solar flare effect to global ionospheric current.
AB - This study present the statistical investigation of equatorial geomagnetic crochets due to strong solar flare of class M to X. Our analysis utilized data from eight magnetometer stations provided by MAGnetic Data Acquisition System network (MAGDAS) at different longitudes sector during period from January 2008 to March 2015. We have considered 52 cases of solar flare events. Based on our analysis, 65% of the studied solar flares show no effect on geomagnetic variation with most of it from class M8, M9 and X1. The absence of solar flare effect might due to the influence of coronal mass ejection (CME) on the observation data or due to the station's location is at nighttime. The other 35% shows geomagnetic crochets to the magnetic data variation where majority are mix effect dominated by positive crochets. Apart from that, we also found an interesting solar flare effect where negative geomagnetic crochets were detected from all equatorial magnetometer data. The unique effect is due to X-class solar flare on 9th August 2011. Further investigation using extended latitudinal and longitudinal magnetometer is recommended to observe the whole picture of the solar flare effect to global ionospheric current.
UR - http://www.scopus.com/inward/record.url?scp=85068440396&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85068440396&partnerID=8YFLogxK
U2 - 10.1063/1.5111233
DO - 10.1063/1.5111233
M3 - Conference contribution
AN - SCOPUS:85068440396
T3 - AIP Conference Proceedings
BT - 2018 UKM FST Postgraduate Colloquium
A2 - Rasol, Noor Hayati Ahmad
A2 - Ibrahim, Kamarulzaman
A2 - Hasbullah, Siti Aishah
A2 - Jumali, Mohammad Hafizuddin Hj.
A2 - Ibrahim, Nazlina
A2 - Hanafiah, Marlia Mohd
A2 - Latif, Mohd Talib
PB - American Institute of Physics Inc.
T2 - 2018 UKM FST Postgraduate Colloquium
Y2 - 4 April 2018 through 6 April 2018
ER -