Akimasa Yoshikawa

An empirical model of the quiet daily geomagnetic field variation

Yosuke Yamazaki, K. Yumoto, M. G. Cardinal et al. · Journal of Geophysical Research Atmospheres · 2011 · 135 citations

Engineering, Solar Convection, Spherical Harmonic Analysis +18

Reflection of shear Alfvén waves at the ionosphere and the divergent Hall current

Akimasa Yoshikawa, M. Itonaga · Geophysical Research Letters · 1996 · 89 citations

Engineering, Solar Convection, Shear Alfvén Waves +18

Substorm convection and current system deduced from the global simulation

Takashi Tanaka, Aoi Nakamizo, Akimasa Yoshikawa et al. · Journal of Geophysical Research Atmospheres · 2010 · 84 citations

Engineering, Plasma Physics, Solar-terrestrial Interaction +20

The nature of reflection and mode conversion of MHD waves in the inductive ionosphere: Multistep mode conversion between divergent and rotational electric fields

Akimasa Yoshikawa, M. Itonaga · Journal of Geophysical Research Atmospheres · 2000 · 62 citations

Geophysics, Inductive Ionosphere, Engineering +15

Integrating Pre-Earthquake Signatures From Different Precursor Tools

Essam Ghamry, Emad K. Mohamed, Mohamed S. Abdalzaher et al. · IEEE Access · 2021 · 56 citations · Full text

Geophysics, Meteorology, Tectonics +14