日本地球惑星科学連合(JpGU), PEPS The Most Accessed Paper Award 2017(http://progearthplanetsci.org/awards_j/most-accessed-2017.html),The geospace response to variable inputs from the lower atmosphere: a review of the progress made by Task Group 4 of CAWSES-IIJens Oberheide Kazuo Shiokawa Subramanian Gurubaran William E Ward Hi toshi Fujiwara Michael J Kosch Jonathan J Makela Hisao Takahashi
Ryuho Kataoka   Daikou Shiota   Hitoshi Fujiwara   Hidekatsu Jin   Chihiro Tao   Hiroyuki Shinagawa   Yasunobu Miyoshi   
Journal of Space Weather and Space Climate 12 41-41 2022年12月
The accidental reentry of 38 Starlink satellites occurred in early February 2022, associated with the occurrence of moderate magnetic storms. A poorly understood structure of Coronal Mass Ejections (CMEs) caused the magnetic storms at unexpected t...
We surveyed the relationship between the scale of space weather events and their occurrence rate in Japan, and we discussed the social impact of these phenomena during the Project for Solar–Terrestrial Environment Prediction (PSTEP) in 2015–2019. ...
<title>Abstract</title>Although solar activity may significantly impact the global environment and socioeconomic systems, the mechanisms for solar eruptions and the subsequent processes have not yet been fully understood. Thus, modern society supp...
Hiroyuki Shinagawa   Chihiro Tao   Hidekatsu Jin   Yasunobu Miyoshi   Hitoshi Fujiwara   
Earth, Planets and Space 73(1) 2021年1月
Abstract
A sporadic E layer has significant influence on radio communications and broadcasting, and predicting the occurrence of sporadic E layers is one of the most important issues in space weather forecast. While sporadic E layer occurrence an...
N. Yoshida   H. Nakagawa   N. Terada   J. S. Evans   N. M. Schneider   S. K. Jain   T. Imamura   J.‐Y. Chaufray   H. Fujiwara   J. Deighan   B. M. Jakosky   
Journal of Geophysical Research: Planets 125(12) 2020年12月