Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Yuichi Otsu"'
Autor:
Wenjie Sun, Guozhu Li, Biqiang Zhao, Shun‐Rong Zhang, Yuichi Otsuka, Lianhuan Hu, Guofeng Dai, Xiukuan Zhao, Haiyong Xie, Yi Li, Jianfei Liu, Yu Li, Baiqi Ning, Libo Liu, Atsuki Shinbori, Michi Nishioka, Septi Perwitasari
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 21, Pp n/a-n/a (2024)
Abstract Plasma blob is generally a low‐latitude phenomenon occurring at the poleward edge of equatorial plasma bubble (EPB) during post‐sunset periods. Here we report a case of midlatitude ionospheric plasma blob‐like structures occurring alon
Externí odkaz:
https://doaj.org/article/abd4c67edb5f411582f40d78b3f2637c
Publikováno v:
Earth, Planets and Space, Vol 76, Iss 1, Pp 1-13 (2024)
Abstract For the first time using computerized ionospheric tomography (CIT) and leveraging ultra-dense slant total electron content (STEC) measurements derived from two ground-based Global Navigation Satellite System (GNSS) receiver networks in Japan
Externí odkaz:
https://doaj.org/article/7be160721b0640338a9a4d2293884a2f
Autor:
Veera Kumar Maheswaran, Yuichi Otsuka, James A. Baskaradas, Venkata Ratnam Devanaboyina, Sriram Subramanian, Atsuki Shinbori, Takuya Sori, Michi Nishioka, Septi Perwitasari
Publikováno v:
Earth, Planets and Space, Vol 76, Iss 1, Pp 1-9 (2024)
Abstract To investigate solar activity dependence of the coupling between medium-scale traveling ionosphere disturbance (MSTID) and sporadic E (Es) layer, we analyzed the total electron content (TEC) obtained from a Japanese global positioning system
Externí odkaz:
https://doaj.org/article/5eca7db2494a4036b22b4cfb80506b29
Autor:
Satoru Katsuda, Hiroyuki Shinagawa, Hitoshi Fujiwara, Hidekatsu Jin, Yasunobu Miyoshi, Yoshizumi Miyoshi, Yuko Motizuki, Motoki Nakajima, Kazuhiro Nakazawa, Kumiko K. Nobukawa, Yuichi Otsuka, Atsushi Shinbori, Takuya Sori, Chihiro Tao, Makoto S. Tashiro, Yuuki Wada, Takaya Yamawaki
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 20, Pp n/a-n/a (2024)
Abstract We present X‐ray observations of the upper atmospheric density disturbance caused by the explosive eruption of the Hunga Tonga‐Hunga Ha'apai (HTHH) volcano on 15 January 2022. From 14 January to 16 January, the Chinese X‐ray astronomy
Externí odkaz:
https://doaj.org/article/86d83625314343c68af8afe357f704a0
Publikováno v:
Results in Engineering, Vol 23, Iss , Pp 102611- (2024)
Interfacial damages (wear, delamination) and bone damage (remodeling, micro-cracks) can significantly affect the local bone deterioration and loosening of the acetabular cup. However, limited research has been conducted on both delamination and bone
Externí odkaz:
https://doaj.org/article/69481d4feafb4f708f312f31e5b6e57d
Autor:
Harihar Rajaram, Anantha Aiyyer, Suzana Camargo, Christopher D. Cappa, Andrew J. Dombard, Kathleen A. Donohue, Sarah Feakins, Lucy Flesch, Robinson Fulweiler, Neil Ganju, Alessandra Giannini, Yu Gu, Christian Huber, Valeriy Ivanov, Kristopher Karnauskas, Monika Korte, Kevin Lewis, Gang Lu, Gudrun Magnusdottir, Mathieu Morlighem, Marit Oieroset, Yuichi Otsuka, Germán A. Prieto, Bo Qiu, Lynn Russell, Hui Su, Daoyuan Sun, Guiling Wang, Kaicun Wang, Caitlin Whalen, Angelicque E. White, Quentin Williams, Andrew Yau
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 9, Pp n/a-n/a (2024)
Abstract On behalf of the journal, AGU, and the scientific community, the editors of Geophysical Research Letters would like to sincerely thank those who reviewed manuscripts for us in 2023. The hours reading and commenting on manuscripts not only im
Externí odkaz:
https://doaj.org/article/db9fae866a8043c49cb2ce4a7cddf23e
Publikováno v:
Earth, Planets and Space, Vol 76, Iss 1, Pp 1-16 (2024)
Abstract Electrodynamic coupling between the ionospheric E and F regions is widely recognized as the underlying mechanism for generating medium-scale traveling ionospheric disturbances (MSTIDs) during nighttime at midlatitudes. Recently, the double-t
Externí odkaz:
https://doaj.org/article/0e05ef11bb114f6186bb326b66dfd5dc
Autor:
Prayitno Abadi, Umar Ali Ahmad, Yuichi Otsuka, Punyawi Jamjareegulgarn, Alif Almahi, Septi Perwitasari, Slamet Supriadi, Wendi Harjupa, Reza Rendian Septiawan
Publikováno v:
Earth, Planets and Space, Vol 75, Iss 1, Pp 1-13 (2023)
Abstract The occurrence of equatorial spread F (ESF) has the potential to detrimentally impact space-based technological systems. This study investigates the utility of ionosondes in forecasting the incidence of post-sunset ESF in the zonal direction
Externí odkaz:
https://doaj.org/article/a9a516456fb34c60a87cf611d3e1d2f5
Autor:
Atsuki Shinbori, Yuichi Otsuka, Takuya Sori, Michi Nishioka, Perwitasari Septi, Takuo Tsuda, Nozomu Nishitani, Atsushi Kumamoto, Fuminori Tsuchiya, Shoya Matsuda, Yoshiya Kasahara, Ayako Matsuoka, Satoko Nakamura, Yoshizumi Miyoshi, Iku Shinohara
Publikováno v:
Earth, Planets and Space, Vol 75, Iss 1, Pp 1-27 (2023)
Abstract The Hunga Tonga–Hunga Ha’apai (HTHH) undersea volcanic eruption that occurred at 04:15 UT on 15 January 2022 is one of the most explosive events in the modern era, and a vertical plume reached approximately 55 km, corresponding to a heig
Externí odkaz:
https://doaj.org/article/97fdbb728f2d4a75892f305bf1ab11d7
Publikováno v:
Earth, Planets and Space, Vol 75, Iss 1, Pp 1-13 (2023)
Abstract The explosive eruption of the Hunga Tonga-Hunga Ha’apai volcano on 15 January 2022 generated atmospheric waves traveling around the Earth, which caused ionospheric disturbances on various spatio-temporal scales. A HF Doppler sounding syste
Externí odkaz:
https://doaj.org/article/118d0110d9654cdc994cf3c7d2c55f5c