Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Hisashi HAYAKAWA"'
Publikováno v:
Geoscience Data Journal, Vol 11, Iss 4, Pp 357-364 (2024)
Externí odkaz:
https://doaj.org/article/327f7a6f4b194b86932245a51fee55a2
Publikováno v:
Geoscience Data Journal, Vol 11, Iss 4, Pp 504-513 (2024)
Abstract Historical weather records from Europe indicate that the Earth experienced substantial climate variability, which caused, for instance, the Little Ice Age and the global crisis in the period between the 14th and 19th centuries. However, it i
Externí odkaz:
https://doaj.org/article/6d3dcb843ed24edebc5d4efde485a7cc
Autor:
Joonas Uusitalo, Kseniia Golubenko, Laura Arppe, Nicolas Brehm, Thomas Hackman, Hisashi Hayakawa, Samuli Helama, Kenichiro Mizohata, Fusa Miyake, Harri Mäkinen, Pekka Nöjd, Eija Tanskanen, Fuyuki Tokanai, Eugene Rozanov, Lukas Wacker, Ilya Usoskin, Markku Oinonen
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 5, Pp n/a-n/a (2024)
Abstract The Carrington event of 1859 has been the strongest solar flare in the observational history. It plays a crucial role in shedding light on the frequency and impacts of the past and future Solar Energetic Particle (SEP) events on human societ
Externí odkaz:
https://doaj.org/article/a5b6ee8c0b6b470fbf2821ce683afea2
Publikováno v:
The Astrophysical Journal Letters, Vol 970, Iss 2, p L31 (2024)
Telescopic sunspot observations began in 1610 and captured subsequent solar cycles. In combination with proxy reconstructions on an annual scale, these data sets indicate a gradual transition between regular solar cycles and the Maunder Minimum. The
Externí odkaz:
https://doaj.org/article/b5df1e22de9d4b12a9691213f55c6461
Publikováno v:
Geoscience Data Journal, Vol 10, Iss 1, Pp 142-157 (2023)
Abstract Solar Cycle 19 was probably the greatest solar cycle over the last four centuries and significantly disrupted the solar‐terrestrial environments with a number of solar eruptions and resultant geomagnetic storms. At its peak, the Internatio
Externí odkaz:
https://doaj.org/article/3106c9b2134c48eb81620cebef722f65
Publikováno v:
Geoscience Data Journal, Vol 10, Iss 1, Pp 87-98 (2023)
Abstract Individual sunspot observations have formed a ground basis of international sunspot number, a unique reference for long‐term solar variability in the centennial timescale. The original datasets were subjected to exploitations and analyses
Externí odkaz:
https://doaj.org/article/cd8f80ca4b4942ed9bd9444be0a6119a
Autor:
Hisashi Hayakawa, Sabrina Bechet, Frédéric Clette, Hugh S. Hudson, Hiroyuki Maehara, Kosuke Namekata, Yuta Notsu
Publikováno v:
The Astrophysical Journal Letters, Vol 954, Iss 1, p L3 (2023)
The Carrington flare in 1859 September is a benchmark, as the earliest reported solar flare and as an event with one of the greatest terrestrial impacts. To date, no rigorous estimate of the energy of this flare has been made on the basis of the only
Externí odkaz:
https://doaj.org/article/e9064065014a4fe0b43198d8ee2d5f0e
Autor:
Kanya Kusano, Kiyoshi Ichimoto, Mamoru Ishii, Yoshizumi Miyoshi, Shigeo Yoden, Hideharu Akiyoshi, Ayumi Asai, Yusuke Ebihara, Hitoshi Fujiwara, Tada-Nori Goto, Yoichiro Hanaoka, Hisashi Hayakawa, Keisuke Hosokawa, Hideyuki Hotta, Kornyanat Hozumi, Shinsuke Imada, Kazumasa Iwai, Toshihiko Iyemori, Hidekatsu Jin, Ryuho Kataoka, Yuto Katoh, Takashi Kikuchi, Yûki Kubo, Satoshi Kurita, Haruhisa Matsumoto, Takefumi Mitani, Hiroko Miyahara, Yasunobu Miyoshi, Tsutomu Nagatsuma, Aoi Nakamizo, Satoko Nakamura, Hiroyuki Nakata, Naoto Nishizuka, Yuichi Otsuka, Shinji Saito, Susumu Saito, Takashi Sakurai, Tatsuhiko Sato, Toshifumi Shimizu, Hiroyuki Shinagawa, Kazuo Shiokawa, Daikou Shiota, Takeshi Takashima, Chihiro Tao, Shin Toriumi, Satoru Ueno, Kyoko Watanabe, Shinichi Watari, Seiji Yashiro, Kohei Yoshida, Akimasa Yoshikawa
Publikováno v:
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-29 (2021)
Abstract 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 supported by advanced
Externí odkaz:
https://doaj.org/article/da97472c80ab47bcb6e874f2ad039b84
Publikováno v:
Earth, Planets and Space, Vol 72, Iss 1, Pp 1-11 (2020)
Abstract The importance of the investigation of magnetic superstorms is not limited to academic interest, because these superstorms can cause catastrophic impact on the modern civilisation due to our increasing dependency on technological infrastruct
Externí odkaz:
https://doaj.org/article/4e2c79c6dcb748f3ad453f7976fb1677
Publikováno v:
Earth, Planets and Space, Vol 72, Iss 1, Pp 1-9 (2020)
Abstract Being footprints of major magnetic storms and hence major solar eruptions, mid- to low-latitude aurorae have been one of the pathways to understand solar–terrestrial environments. However, it has been reported that aurorae are also occasio
Externí odkaz:
https://doaj.org/article/58579a1871d64f4392845ed0805ac40b