Transient ionization of the mesosphere during auroral breakup: Arase satellite and ground-based conjugate observations at Syowa Station
Abstract Transient mesospheric echo in the VHF range was detected at an altitude of 65–70 km during the auroral breakup that occurred from 2220 to 2226 UT on June 30, 2017. During this event, the footprint of the Arase satellite was located within the field of view of the all-sky imagers at Syowa St...
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ftdatacite:10.6084/m9.figshare.c.4376765 2023-05-15T13:46:18+02:00 Transient ionization of the mesosphere during auroral breakup: Arase satellite and ground-based conjugate observations at Syowa Station Ryuho Kataoka Nishiyama, Takanori Tanaka, Yoshimasa Kadokura, Akira Uchida, Herbert Ebihara, Yusuke Mitsumu Ejiri Tomikawa, Yoshihiro Tsutsumi, Masaki Sato, Kaoru Yoshizumi Miyoshi Shiokawa, Kazuo Kurita, Satoshi Kasahara, Yoshiya Ozaki, Mitsunori Hosokawa, Keisuke Shoya Matsuda Iku Shinohara Takashima, Takeshi Sato, Tatsuhiko Mitani, Takefumi Hori, Tomoaki Higashio, Nana 2019 https://dx.doi.org/10.6084/m9.figshare.c.4376765 https://springernature.figshare.com/collections/Transient_ionization_of_the_mesosphere_during_auroral_breakup_Arase_satellite_and_ground-based_conjugate_observations_at_Syowa_Station/4376765 unknown Figshare https://dx.doi.org/10.1186/s40623-019-0989-7 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Biophysics Space Science 29999 Physical Sciences not elsewhere classified FOS Physical sciences Medicine Cell Biology Biotechnology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Collection article 2019 ftdatacite https://doi.org/10.6084/m9.figshare.c.4376765 https://doi.org/10.1186/s40623-019-0989-7 2021-11-05T12:55:41Z Abstract Transient mesospheric echo in the VHF range was detected at an altitude of 65–70 km during the auroral breakup that occurred from 2220 to 2226 UT on June 30, 2017. During this event, the footprint of the Arase satellite was located within the field of view of the all-sky imagers at Syowa Station in the Antarctic. Auroral observations at Syowa Station revealed the dominant precipitation of relatively soft electrons during the auroral breakup. A corresponding spike in cosmic noise absorption was also observed at Syowa Station, while the Arase satellite observed a flux enhancement of > 100 keV electrons and a broadband noise without detecting chorus waves or electromagnetic ion cyclotron waves. A general-purpose Monte Carlo particle transport simulation code was used to quantitatively evaluate the ionization in the middle atmosphere. Results of this study indicate that the precipitation of energetic electrons of > 100 keV, rather than X-rays from the auroral electrons, played a dominant role in the transient and deep (65–70 km) mesospheric ionization during the observed auroral breakup. Article in Journal/Newspaper Antarc* Antarctic DataCite Metadata Store (German National Library of Science and Technology) Antarctic The Antarctic Syowa Station |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Biophysics Space Science 29999 Physical Sciences not elsewhere classified FOS Physical sciences Medicine Cell Biology Biotechnology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences |
spellingShingle |
Biophysics Space Science 29999 Physical Sciences not elsewhere classified FOS Physical sciences Medicine Cell Biology Biotechnology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ryuho Kataoka Nishiyama, Takanori Tanaka, Yoshimasa Kadokura, Akira Uchida, Herbert Ebihara, Yusuke Mitsumu Ejiri Tomikawa, Yoshihiro Tsutsumi, Masaki Sato, Kaoru Yoshizumi Miyoshi Shiokawa, Kazuo Kurita, Satoshi Kasahara, Yoshiya Ozaki, Mitsunori Hosokawa, Keisuke Shoya Matsuda Iku Shinohara Takashima, Takeshi Sato, Tatsuhiko Mitani, Takefumi Hori, Tomoaki Higashio, Nana Transient ionization of the mesosphere during auroral breakup: Arase satellite and ground-based conjugate observations at Syowa Station |
topic_facet |
Biophysics Space Science 29999 Physical Sciences not elsewhere classified FOS Physical sciences Medicine Cell Biology Biotechnology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences |
description |
Abstract Transient mesospheric echo in the VHF range was detected at an altitude of 65–70 km during the auroral breakup that occurred from 2220 to 2226 UT on June 30, 2017. During this event, the footprint of the Arase satellite was located within the field of view of the all-sky imagers at Syowa Station in the Antarctic. Auroral observations at Syowa Station revealed the dominant precipitation of relatively soft electrons during the auroral breakup. A corresponding spike in cosmic noise absorption was also observed at Syowa Station, while the Arase satellite observed a flux enhancement of > 100 keV electrons and a broadband noise without detecting chorus waves or electromagnetic ion cyclotron waves. A general-purpose Monte Carlo particle transport simulation code was used to quantitatively evaluate the ionization in the middle atmosphere. Results of this study indicate that the precipitation of energetic electrons of > 100 keV, rather than X-rays from the auroral electrons, played a dominant role in the transient and deep (65–70 km) mesospheric ionization during the observed auroral breakup. |
format |
Article in Journal/Newspaper |
author |
Ryuho Kataoka Nishiyama, Takanori Tanaka, Yoshimasa Kadokura, Akira Uchida, Herbert Ebihara, Yusuke Mitsumu Ejiri Tomikawa, Yoshihiro Tsutsumi, Masaki Sato, Kaoru Yoshizumi Miyoshi Shiokawa, Kazuo Kurita, Satoshi Kasahara, Yoshiya Ozaki, Mitsunori Hosokawa, Keisuke Shoya Matsuda Iku Shinohara Takashima, Takeshi Sato, Tatsuhiko Mitani, Takefumi Hori, Tomoaki Higashio, Nana |
author_facet |
Ryuho Kataoka Nishiyama, Takanori Tanaka, Yoshimasa Kadokura, Akira Uchida, Herbert Ebihara, Yusuke Mitsumu Ejiri Tomikawa, Yoshihiro Tsutsumi, Masaki Sato, Kaoru Yoshizumi Miyoshi Shiokawa, Kazuo Kurita, Satoshi Kasahara, Yoshiya Ozaki, Mitsunori Hosokawa, Keisuke Shoya Matsuda Iku Shinohara Takashima, Takeshi Sato, Tatsuhiko Mitani, Takefumi Hori, Tomoaki Higashio, Nana |
author_sort |
Ryuho Kataoka |
title |
Transient ionization of the mesosphere during auroral breakup: Arase satellite and ground-based conjugate observations at Syowa Station |
title_short |
Transient ionization of the mesosphere during auroral breakup: Arase satellite and ground-based conjugate observations at Syowa Station |
title_full |
Transient ionization of the mesosphere during auroral breakup: Arase satellite and ground-based conjugate observations at Syowa Station |
title_fullStr |
Transient ionization of the mesosphere during auroral breakup: Arase satellite and ground-based conjugate observations at Syowa Station |
title_full_unstemmed |
Transient ionization of the mesosphere during auroral breakup: Arase satellite and ground-based conjugate observations at Syowa Station |
title_sort |
transient ionization of the mesosphere during auroral breakup: arase satellite and ground-based conjugate observations at syowa station |
publisher |
Figshare |
publishDate |
2019 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.4376765 https://springernature.figshare.com/collections/Transient_ionization_of_the_mesosphere_during_auroral_breakup_Arase_satellite_and_ground-based_conjugate_observations_at_Syowa_Station/4376765 |
geographic |
Antarctic The Antarctic Syowa Station |
geographic_facet |
Antarctic The Antarctic Syowa Station |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://dx.doi.org/10.1186/s40623-019-0989-7 |
op_rights |
CC BY 4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.4376765 https://doi.org/10.1186/s40623-019-0989-7 |
_version_ |
1766239918896447488 |