If you made any changes in Pure these will be visible here soon.

Research Output

Filter
Article
2020

Effects of solar activity on ionospheric current system in the Southeast Asia region

Hamid, N. S. A., Rosli, N. I. M., Ismail, W. N. I. & Yoshikawa, A., Jan 1 2020, (Accepted/In press) In : Indian Journal of Physics.

Research output: Contribution to journalArticle

Formation of a 3-D Oscillatory Current System Associated With Global High-Correlation Pi 2 Event: A Case Study

Uozumi, T., Yoshikawa, A. & Ohtani, S., Jan 1 2020, In : Journal of Geophysical Research: Space Physics. 125, 1, e2019JA026988.

Research output: Contribution to journalArticle

Multi-Instrument Observations of the Atmospheric and Ionospheric Response to the 2013 Sudden Stratospheric Warming over Eastern Asia Region

Chen, G., Li, Y., Zhang, S., Ning, B., Gong, W., Yoshikawa, A., Hozumi, K., Tsugawa, T. & Wang, Z., Feb 2020, In : IEEE Transactions on Geoscience and Remote Sensing. 58, 2, p. 1232-1243 12 p., 8880604.

Research output: Contribution to journalArticle

The Experience of Magnetovariational Sounding in the Arctic: the Laptev Sea Region

Starzhinskii, S. S., Nikiforov, V. M. & Yoshikawa, A., Mar 1 2020, In : Izvestiya, Physics of the Solid Earth. 56, 2, p. 225-237 13 p.

Research output: Contribution to journalArticle

2019

Application of solar quiet (Sq) current in determining mantle conductivity-depth structure in Malaysia

Abidin, Z. Z., Jusoh, M. H., Abbas, M. & Yoshikawa, A., Oct 1 2019, In : Journal of Atmospheric and Solar-Terrestrial Physics. 192, 104776.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Assessment of signal processing methods for geomagnetic precursor of the 2012 M6.9 Visayas, Philippines earthquake

Yusof, K. A., Abdul Hamid, N. S., Abdullah, M., Ahadi, S. & Yoshikawa, A., Oct 1 2019, In : Acta Geophysica. 67, 5, p. 1297-1306 10 p.

Research output: Contribution to journalArticle

Deformation of Ionospheric Potential Pattern by Ionospheric Hall Polarization

Nakamizo, A. & Yoshikawa, A., Sep 1 2019, In : Journal of Geophysical Research: Space Physics. 124, 9, p. 7553-7580 28 p.

Research output: Contribution to journalArticle

Features of horizontal magnetic field intensity over northern island of Malaysia

Abbas, M., Abidin, Z. Z., Jusoh, M. H., Bolaji, O. S. & Yoshikawa, A., Oct 1 2019, In : Indian Journal of Physics. 93, 10, p. 1247-1257 11 p.

Research output: Contribution to journalArticle

Features of the inter-hemispheric field-aligned current system over Malaysia ionosphere

Abidin, Z. Z., Jusoh, M. H., Abbas, M., Bolaji, O. S. & Yoshikawa, A., Oct 1 2019, In : Journal of Atmospheric and Solar-Terrestrial Physics. 192, 104769.

Research output: Contribution to journalArticle

Investigation on the Variability of the Geomagnetic Daily Current During Sudden Stratospheric Warmings

Owolabi, C., Lei, J., Bolaji, O. S., Jimoh, O., Ruan, H., Li, N., Niu, X. & Yoshikawa, A., Jan 1 2019, In : Journal of Geophysical Research: Space Physics. 124, 7, p. 6156-6172 17 p.

Research output: Contribution to journalArticle

Longitudinal variability of the equatorial counter electrojet during the solar cycle 24

Soares, G., Yamazaki, Y., Matzka, J., Pinheiro, K., Stolle, C., Alken, P., Yoshikawa, A., Uozumi, T., Fujimoto, A. & Kulkarni, A., Apr 1 2019, In : Studia Geophysica et Geodaetica. 63, 2, p. 304-319 16 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Magnetic Data Acquisition System (MAGDAS) Malaysia: installation and preliminary data analysis at ESERI, UNISZA

MAGDAS/CPMN Group, May 1 2019, In : Indian Journal of Physics. 93, 5, p. 553-564 12 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Modeling Geomagnetically Induced Currents in Australian Power Networks Using Different Conductivity Models

Marshall, R. A., Wang, L., Paskos, G. A., Olivares-Pulido, G., Van Der Walt, T., Ong, C., Mikkelsen, D., Hesse, G., McMahon, B., Van Wyk, E., Ivanovich, G., Spoor, D., Taylor, C. & Yoshikawa, A., Jan 1 2019, In : Space Weather.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Response of Ionospheric Profile Parameters to Equatorial Electrojet Over Peruvian Station

Bello, S. A., Abdullah, M., Hamid, N. S. A., Reinisch, B. W., Yoshikawa, A. & Fujimoto, A., Apr 2019, In : Earth and Space Science. 6, 4, p. 617-628 12 p.

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)

Response of the Ionosphere-Plasmasphere Coupling to the September 2017 Storm: What Erodes the Plasmasphere so Severely?

Obana, Y., Maruyama, N., Shinbori, A., Hashimoto, K. K., Fedrizzi, M., Nosé, M., Otsuka, Y., Nishitani, N., Hori, T., Kumamoto, A., Tsuchiya, F., Matsuda, S., Matsuoka, A., Kasahara, Y., Yoshikawa, A., Miyoshi, Y. & Shinohara, I., Jun 2019, In : Space Weather. 17, 6, p. 861-876 16 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Statistical Study of Selective Oxygen Increase in High-Energy Ring Current Ions During Magnetic Storms

Mitani, K., Seki, K., Keika, K., Gkioulidou, M., Lanzerotti, L. J., Mitchell, D. G., Kletzing, C. A., Yoshikawa, A. & Obana, Y., May 2019, In : Journal of Geophysical Research: Space Physics. 124, 5, p. 3193-3209 17 p.

Research output: Contribution to journalArticle

Three Different Episodes of Prompt Equatorial Electric Field Perturbations Under Steady Southward IMF Bz During St. Patrick's Day Storm

Tulasi Ram, S., Nilam, B., Balan, N., Zhang, Q., Shiokawa, K., Chakrabarty, D., Xing, Z., Venkatesh, K., Veenadhari, B. & Yoshikawa, A., Dec 1 2019, In : Journal of Geophysical Research: Space Physics. 124, 12, p. 10428-10443 16 p.

Research output: Contribution to journalArticle

Variation of equatorial electrojet current profiles over Solar Phases

Ismail, W. N. I., Hamid, N. S. A., Abdullah, M., Shukur, N. H. M. & Yoshikawa, A., Jan 1 2019, In : ASM Science Journal. 12, Special Issue 2, p. 125-133 9 p.

Research output: Contribution to journalArticle

2018

Generation of Electron Acoustic Waves in the Topside Ionosphere From Coupling With Kinetic Alfven Waves: A New Electron Energization Mechanism

Shi, R., Ni, B., Summers, D., Liu, H., Yoshikawa, A. & Zhang, B., Jun 16 2018, In : Geophysical Research Letters. 45, 11, p. 5299-5304 6 p.

Research output: Contribution to journalArticle

Global Distribution of ULF Waves During Magnetic Storms: Comparison of Arase, Ground Observations, and BATSRUS + CRCM Simulation

Takahashi, N., Seki, K., Teramoto, M., Fok, M. C., Zheng, Y., Matsuoka, A., Higashio, N., Shiokawa, K., Baishev, D., Yoshikawa, A. & Nagatsuma, T., Sep 28 2018, In : Geophysical Research Letters. 45, 18, p. 9390-9397 8 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Investigation of Unusual Solar Flare Effect on the Global Ionospheric Current System

Annadurai, N. M. N., Hamid, N. S. A., Yamazaki, Y. & Yoshikawa, A., Oct 2018, In : Journal of Geophysical Research: Space Physics. 123, 10, p. 8599-8609 11 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Longitudinal Development of Poleward Boundary Intensifications (PBIs) of Auroral Emission

Ohtani, S., Motoba, T., Gjerloev, J. W., Ruohoniemi, J. M., Donovan, E. F. & Yoshikawa, A., Nov 2018, In : Journal of Geophysical Research: Space Physics. 123, 11, p. 9005-9021 17 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Pemerhatian Arus Ionosfera semasa Suar Suria Kuat Menggunakan Data Magnetometer Dasar

Translated title of the contribution: Observation of ionospheric current during strong solar flare using ground based magnetometerAnnadurai, N. M. N., Hamid, N. S. A. & Yoshikawa, A., Mar 2018, In : Sains Malaysiana. 47, 3, p. 595-601 7 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Perubahan Sistem Arus Ionosfera di Kawasan Asia Tenggara semasa Ribut Geomagnet pada Fasa Suria Minimum

Translated title of the contribution: Changes in ionospheric currents system at southeast Asia region during geomagnetic storm in solar's minimum phaseHamid, N. S. A., Wen, V. A., Rosli, N. I. M. & Yoshikawa, A., Aug 2018, In : Sains Malaysiana. 47, 8, p. 1923-1929 7 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Theory, modeling, and integrated studies in the Arase (ERG) project

Seki, K., Miyoshi, Y., Ebihara, Y., Katoh, Y., Amano, T., Saito, S., Shoji, M., Nakamizo, A., Keika, K., Hori, T., Nakano, S. Y., Watanabe, S., Kamiya, K., Takahashi, N., Omura, Y., Nose, M., Fok, M. C., Tanaka, T., Ieda, A. & Yoshikawa, A., Dec 1 2018, In : earth, planets and space. 70, 1, 17.

Research output: Contribution to journalArticle

6 Citations (Scopus)
2017

Analysis of Magnetic Field Variations Produced by Equatorial Electro-Jets

López, E., Aldás, F. & Yoshikawa, A., Jan 1 2017, In : Proceedings of the International Astronomical Union. 13, S335, p. 125-127 3 p.

Research output: Contribution to journalArticle

Application of a global magnetospheric-ionospheric current model for dayside and terminator Pi2 pulsations

Imajo, S., Yoshikawa, A., Uozumi, T., Ohtani, S., Nakamizo, A. & Chi, P. J., Aug 2017, In : Journal of Geophysical Research: Space Physics. 122, 8, p. 8589-8603 15 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Contribution of storm time substorms to the prompt electric field disturbances in the equatorial ionosphere

Hui, D., Chakrabarty, D., Sekar, R., Reeves, G. D., Yoshikawa, A. & Shiokawa, K., May 1 2017, In : Journal of Geophysical Research: Space Physics. 122, 5, p. 5568-5578 11 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

First geomagnetic observation at sabah, malaysia by using MAGDAS array

Ibrahim, S. N., Jusoh, M. H., Sulaiman, A. A., Ahmad, S. N. A., Makmud, M. Z. H., Musta, B., Abdullah, M., Asillam, M. F., Pathy, N. B., Hashim, M. H. & Akimasa, Y., Jan 1 2017, In : International Journal of Simulation: Systems, Science and Technology. 17, 41, p. 30.1-30.8

Research output: Contribution to journalArticle

3 Citations (Scopus)

High-latitude Pi2 pulsations associated with kink-like neutral sheet oscillations

Wang, G. Q., Volwerk, M., Zhang, T. L., Schmid, D. & Yoshikawa, A., Mar 1 2017, In : Journal of Geophysical Research: Space Physics. 122, 3, p. 2889-2899 11 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Latitudinal variation of ionospheric currents in Southeast Asian sector

Hamid, N. S. A., Ismail, W. N. I. & Yoshikawa, A., Feb 2017, In : Advanced Science Letters. 23, 2, p. 1444-1447 4 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Longitudinal profile of the equatorial electrojet current and its dependence on solar activity

Hamid, N. S. A., Ismail, W. N. I. & Yoshikawa, A., Feb 2017, In : Advanced Science Letters. 23, 2, p. 1357-1360 4 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Longitudinal variation of equatorial electrojet and the occurrence of its counter electrojet

Babatunde Rabiu, A., Folarin, O. O., Uozumi, T., Hamid, N. S. A. & Yoshikawa, A., Apr 7 2017, In : Annales Geophysicae. 35, 3, p. 535-545 11 p.

Research output: Contribution to journalArticle

18 Citations (Scopus)

Meridional movement of northern and southern equatorial ionization anomaly crests in the East-Asian sector during 2002–2003 SSW

Mo, X. H., Zhang, D. H., Goncharenko, L., Zhang, S. R., Hao, Y. Q., Xiao, Z., Pei, J. Z., Yoshikawa, A. & Chau, H. D., Apr 1 2017, In : Science China Earth Sciences. 60, 4, p. 776-785 10 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Modeling geomagnetic induced currents in Australian power networks

Marshall, R. A., Kelly, A., Van Der Walt, T., Honecker, A., Ong, C., Mikkelsen, D., Spierings, A., Ivanovich, G. & Yoshikawa, A., Jul 1 2017, In : Space Weather. 15, 7, p. 895-916 22 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Nighttime Pc3 pulsations: MM100 and MAGDAS observations

Yagova, N. V., Heilig, B., Pilipenko, V. A., Yoshikawa, A., Nosikova, N. S., Yumoto, K. & Reda, J., Dec 1 2017, In : earth, planets and space. 69, 1, 61.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Variations of B0 and B1 with the solar quiet Sq-current system and comparison with IRI-2012 model at Ilorin

Bello, S. A., Abdullah, M., Hamid, N. S. A., Yoshikawa, A. & Olawepo, A. O., Jul 15 2017, In : Advances in Space Research. 60, 2, p. 307-316 10 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)
2016

Evolution of the current system during solar wind pressure pulses based on aurora and magnetometer observations

Nishimura, Y., Kikuchi, T., Ebihara, Y., Yoshikawa, A., Imajo, S., Li, W. & Utada, H., Dec 1 2016, In : earth, planets and space. 68, 1, 144.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Initial deflection of middle-latitude Pi2 pulsations in the premidnight sector: Remote detection of oscillatory upward field-aligned current at substorm onset

Uozumi, T., Yoshikawa, A., Ohtani, S., Imajo, S., Baishev, D. G., Moiseev, A. V. & Yumoto, K., Jul 1 2016, In : Journal of Geophysical Research: Space Physics. 121, 7, p. 6324-6340 17 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Propagation of ULF waves from the upstream region to the midnight sector of the inner magnetosphere

Takahashi, K., Hartinger, M. D., Malaspina, D. M., Smith, C. W., Koga, K., Singer, H. J., Frühauff, D., Baishev, D. G., Moiseev, A. V. & Yoshikawa, A., Sep 1 2016, In : Journal of Geophysical Research A: Space Physics. 121, 9, p. 8428-8447 20 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Solar quiet current response in the African sector due to a 2009 sudden stratospheric warming event

Bolaji, O. S., Oyeyemi, E. O., Owolabi, O. P., Yamazaki, Y., Rabiu, A. B., Okoh, D., Fujimoto, A., Amory-Mazaudier, C., Seemala, G. K., Yoshikawa, A. & Onanuga, O. K., Aug 1 2016, In : Journal of Geophysical Research: Space Physics. 121, 8, p. 8055-8065 11 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Solar terminator effects on middle- to low-latitude Pi2 pulsations

Imajo, S., Yoshikawa, A., Uozumi, T., Ohtani, S., Nakamizo, A., Demberel, S. & Shevtsov, B. M., Dec 1 2016, In : earth, planets and space. 68, 1, 137.

Research output: Contribution to journalArticle

4 Citations (Scopus)
7 Citations (Scopus)

The prolonged southward IMF-Bz event of 2–4 May 1998: Solar, interplanetary causes and geomagnetic consequences

Bisoi, S. K., Chakrabarty, D., Janardhan, P., Rastogi, R. G., Yoshikawa, A., Fujiki, K., Tokumaru, M. & Yan, Y., May 1 2016, In : Journal of Geophysical Research A: Space Physics. 121, 5, p. 3882-3904 23 p.

Research output: Contribution to journalArticle

2015

Anomalous ULF emissions and their possible association with the strong earthquakes in sumatra, Indonesia, during 2007-2012

Ahadi, S., Puspito, N. T., Ibrahim, G., Saroso, S., Yumoto, K., Yoshikawa, A. & Muzli, L., Jan 1 2015, In : Journal of Mathematical and Fundamental Sciences. 47, 1, p. 84-103 20 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Capacity building: A tool for advancing space weather science

Cardinal, M. G., Yoshikawa, A., Kawano, H., Liu, H., Watanabe, M., Abe, S., Uozumi, T., Maeda, G., Hada, T. & Yumoto, K., Jan 1 2015, In : Space Weather. 12, 10, p. 571-576 6 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Eastward-expanding auroral surges observed in the post-midnight sector during a multiple-onset substorm

Tanaka, Y., Ogawa, Y., Kadokura, A., Partamies, N., Whiter, D., Enell, C. F., Brändström, U., Sergienko, T., Gustavsson, B., Kozlovsky, A., Miyaoka, H. & Yoshikawa, A., Dec 1 2015, In : earth, planets and space. 67, 1, 182.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Empirical model of equatorial electrojet based on ground-based magnetometer data during solar minimum in fall 3. Space science

Hamid, N. S. A., Liu, H., Uozumi, T. & Yoshikawa, A., Dec 1 2015, In : earth, planets and space. 67, 1, 205.

Research output: Contribution to journalArticle

12 Citations (Scopus)

Generation of different long-period geomagnetic pulsations during a sudden impulse

Moiseyev, A. V., Popov, V. I., Mullayarov, V. A., Samsonov, S. N., Du, A. & Yoshikawa, A., Jul 25 2015, In : Cosmic Research. 53, 4, p. 257-266 10 p.

Research output: Contribution to journalArticle

Near-equatorial Pi2 and Pc3 waves observed by CHAMP and on SAMBA/MAGDAS stations

Cuturrufo, F., Pilipenko, V., Heilig, B., Stepanova, M., Lühr, H., Vega, P. & Yoshikawa, A., Feb 15 2015, In : Advances in Space Research. 55, 4, p. 1180-1189 10 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)