1. Institute of Space and Astronautical Science; Japan Aerospace Exploration Agency; Sagamihara Japan
2. Science Solutions Division; Technical Computing Solutions Unit, Fujitsu Limited; Tokyo Japan
3. Solar-Terrestrial Environment Laboratory; Nagoya University; Nagoya Japan
4. Department of Earth and Planetary Sciences; Tokyo Institute of Technology; Tokyo Japan
5. Department of Earth Science; Kumamoto University; Kumamoto Japan
6. Earthquake Research Institute; University of Tokyo; Tokyo Japan
7. Department of Earth and Planetary Sciences, Faculty of Science; Kyushu University; Fukuoka Japan