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Journal Articles

Negative excursion of surface electric fields during gamma-ray glows in winter thunderstorms

Wada, Yuki*; Kamogawa, Masashi*; Kubo, Mamoru*; Enoto, Teruaki*; Hayashi, Shugo*; Sawano, Tatsuya*; Yonetoku, Daisuke*; Tsuchiya, Harufumi

Journal of Geophysical Research; Atmospheres, 128(21), p.e2023JD039354_1 - e2023JD039354_20, 2023/11

Journal Articles

Termination of downward-oriented gamma-ray glow by normal-polarity in-cloud discharge activity

Wada, Yuki*; Wu, T.*; Wang, D.*; Enoto, Teruaki*; Nakazawa, Kazuhiro*; Morimoto, Takeshi*; Nakamura, Yoshitaka*; Shinoda, Taro*; Tsuchiya, Harufumi

Journal of Geophysical Research; Atmospheres, 128(15), p.e2023JD038606_1 - e2023JD038606_9, 2023/08

Journal Articles

Citizen science observation of a gamma-ray glow associated with the initiation of a lightning flash

Tsurumi, Miwa*; Enoto, Teruaki*; Ikkatai, Yuko*; Wu, T.*; Wang, D.*; Shinoda, Taro*; Nakazawa, Kazuhiro*; Tsuji, Naoki*; Diniz, G.*; Kataoka, Jun*; et al.

Geophysical Research Letters, 50(13), p.e2023GL103612_1 - e2023GL103612_9, 2023/07

Journal Articles

Catalog of gamma-ray glows during four winter seasons in Japan

Wada, Yuki*; Matsumoto, Takahiro*; Enoto, Teruaki*; Nakazawa, Kazuhiro*; Yuasa, Takayuki*; Furuta, Yoshihiro*; Yonetoku, Daisuke*; Sawano, Tatsuya*; Okada, Go*; Nanto, Hidehito*; et al.

Physical Review Research (Internet), 3(4), p.043117_1 - 043117_31, 2021/12

Journal Articles

Multiple gamma-ray glows and a downward TGF observed from nearby thunderclouds

Hisadomi, Shohei*; Nakazawa, Kazuhiro*; Wada, Yuki*; Tsuji, Yuna*; Enoto, Teruaki*; Shinoda, Taro*; Morimoto, Takeshi*; Nakamura, Yoshitaka*; Yuasa, Takayuki*; Tsuchiya, Harufumi

Journal of Geophysical Research; Atmospheres, 126(18), p.e2021JD034543_1 - e2021JD034543_12, 2021/09

 Times Cited Count:13 Percentile:83.81(Meteorology & Atmospheric Sciences)

Journal Articles

Gamma-ray observations at the coastal area of Japan Sea in winter seasons

Tsuchiya, Harufumi; Enoto, Teruaki*; Wada, Yuki*; Furuta, Yoshihiro; Nakazawa, Kazuhiro*; Yuasa, Takayuki*; Umemoto, Daigo*; Makishima, Kazuo*; GROWTH Collaboration*

Proceedings of Science (Internet), 358, p.1163_1 - 1163_6, 2021/07

Journal Articles

Meteorological aspects of gamma-ray glows in winter thunderstorms

Wada, Yuki*; Enoto, Teruaki*; Kubo, Mamoru*; Nakazawa, Kazuhiro*; Shinoda, Taro*; Yonetoku, Daisuke*; Sawano, Tatsuya*; Yuasa, Takayuki*; Ushio, Tomoo*; Sato, Yosuke*; et al.

Geophysical Research Letters, 48(7), 11 Pages, 2021/04

 Times Cited Count:16 Percentile:91.82(Geosciences, Multidisciplinary)

During three winter seasons from November 2016 to March 2019, 11 gamma-ray glows were detected at a single observation site of our ground-based gamma-ray monitoring network in Kanazawa, Japan. These events are analyzed with observations of an X-band radar network, a ceilometer, a disdrometer, and a weather monitor. All the detected glows were connected to convective high-reflectivity regions of more than 35 dBZ, developed up to an altitude of $$>$$2 km. They were also accompanied by heavy precipitation of graupels. Therefore, graupels in the lower layer of thunderclouds that correspond to high-reflectivity regions can form strong electric fields producing gamma-ray glows. Also, these events are compared with a limited sample of nondetection cases, but no significant differences in meteorological conditions were found between detection and nondetection cases in the present study.

Journal Articles

Photonuclear reactions in lightning, 1; Verification and modeling of reaction and propagation processes

Wada, Yuki*; Enoto, Teruaki*; Nakazawa, Kazuhiro*; Odaka, Hirokazu*; Furuta, Yoshihiro; Tsuchiya, Harufumi

Journal of Geophysical Research; Atmospheres, 125(20), p.e2020JD033193_1 - e2020JD033193_17, 2020/10

 Times Cited Count:4 Percentile:16.29(Meteorology & Atmospheric Sciences)

Journal Articles

Photonuclear reactions in lightning, 2; Comparison between observation and simulation model

Wada, Yuki*; Enoto, Teruaki*; Nakazawa, Kazuhiro*; Yuasa, Takayuki*; Furuta, Yoshihiro; Odaka, Hirokazu*; Makishima, Kazuo*; Tsuchiya, Harufumi

Journal of Geophysical Research; Atmospheres, 125(20), p.e2020JD033194_1 - e2020JD033194_15, 2020/10

 Times Cited Count:2 Percentile:10.2(Meteorology & Atmospheric Sciences)

Journal Articles

Thundercloud project; Exploring high-energy phenomena in thundercloud and lightning

Yuasa, Takayuki*; Wada, Yuki*; Enoto, Teruaki*; Furuta, Yoshihiro; Tsuchiya, Harufumi; Hisadomi, Shohei*; Tsuji, Yuna*; Okuda, Kazufumi*; Matsumoto, Takahiro*; Nakazawa, Kazuhiro*; et al.

Progress of Theoretical and Experimental Physics (Internet), 2020(10), p.103H01_1 - 103H01_27, 2020/10

 Times Cited Count:13 Percentile:76.43(Physics, Multidisciplinary)

Journal Articles

Photoneutron detection in lightning by gadolinium orthosilicate scintillators

Wada, Yuki*; Nakazawa, Kazuhiro*; Enoto, Teruaki*; Furuta, Yoshihiro; Yuasa, Takayuki*; Makishima, Kazuo*; Tsuchiya, Harufumi

Physical Review D, 101(10), p.102007_1 - 102007_6, 2020/05

 Times Cited Count:1 Percentile:8.27(Astronomy & Astrophysics)

Journal Articles

High peak-current lightning discharges associated with downward terrestrial gamma-ray flashes

Wada, Yuki*; Enoto, Teruaki*; Nakamura, Yoshitaka*; Morimoto, Takeshi*; Sato, Mitsuteru*; Ushio, Tomoo*; Nakazawa, Kazuhiro*; Yuasa, Takayuki*; Yonetoku, Daisuke*; Sawano, Tatsuya*; et al.

Journal of Geophysical Research; Atmospheres, 125(4), p.e2019JD031730_1 - e2019JD031730_11, 2020/02

 Times Cited Count:19 Percentile:80.01(Meteorology & Atmospheric Sciences)

Journal Articles

Downward terrestrial gamma-ray flash observed in a winter thunderstorm

Wada, Yuki*; Enoto, Teruaki*; Nakazawa, Kazuhiro*; Furuta, Yoshihiro; Yuasa, Takayuki*; Nakamura, Yoshitaka*; Morimoto, Takeshi*; Matsumoto, Takahiro*; Makishima, Kazuo*; Tsuchiya, Harufumi

Physical Review Letters, 123(6), p.061103_1 - 061103_6, 2019/08

AA2018-0706.pdf:0.79MB

 Times Cited Count:31 Percentile:88.12(Physics, Multidisciplinary)

Journal Articles

Gamma-ray glow preceding downward terrestrial gamma-ray flash

Wada, Yuki*; Enoto, Teruaki*; Nakamura, Yoshitaka*; Furuta, Yoshihiro; Yuasa, Takayuki*; Nakazawa, Kazuhiro*; Morimoto, Takeshi*; Sato, Mitsuteru*; Matsumoto, Takahiro*; Yonetoku, Daisuke*; et al.

Communications Physics (Internet), 2(1), p.67_1 - 67_9, 2019/06

 Times Cited Count:41 Percentile:93.33(Physics, Multidisciplinary)

Journal Articles

High-energy atmospheric phenomena initiated by lightning

Enoto, Teruaki*; Wada, Yuki*; Tsuchiya, Harufumi

Nihon Butsuri Gakkai-Shi, 74(4), p.192 - 200, 2019/04

no abstracts in English

Journal Articles

Termination of electron acceleration in thundercloud by intracloud/intercloud discharge

Wada, Yuki*; Bowers, G. S.*; Enoto, Teruaki*; Kamogawa, Masashi*; Nakamura, Yoshitaka*; Morimoto, Takeshi*; Smith, D.*; Furuta, Yoshihiro*; Nakazawa, Kazuhiro*; Yuasa, Takayuki*; et al.

Geophysical Research Letters, 45(11), p.5700 - 5707, 2018/06

 Times Cited Count:28 Percentile:83.17(Geosciences, Multidisciplinary)

Journal Articles

Photonuclear reactions triggered by lightning discharge

Enoto, Teruaki*; Wada, Yuki*; Furuta, Yoshihiro*; Nakazawa, Kazuhiro*; Yuasa, Takayuki*; Okuda, Kazufumi*; Makishima, Kazuo*; Sato, Mitsuteru*; Sato, Yosuke*; Nakano, Toshio*; et al.

Nature, 551(7681), p.481 - 484, 2017/11

 Times Cited Count:104 Percentile:97.69(Multidisciplinary Sciences)

Journal Articles

Observation of an energetic radiation burst from mountain-top thunderclouds

Tsuchiya, Harufumi*; Enoto, Teruaki*; Torii, Tatsuo; Nakazawa, Kazuhiro*; Yuasa, Takayuki*; Torii, Shunsuke*; Fukuyama, Taro*; Yamaguchi, Takahiro*; Kato, Hiroshi*; Okano, Shinji*; et al.

Physical Review Letters, 102(25), p.255003_1 - 255003_4, 2009/06

 Times Cited Count:65 Percentile:90.61(Physics, Multidisciplinary)

During thunderstorms on 2008 September 20, a simultaneous detection of $$gamma$$-rays and electrons was made at a mountain observatory in Japan located 2770 m above sea level. Both emissions, lasting 90 seconds, were associated with thunderclouds rather than lightning. The photon spectrum, extending to 10 MeV, can be interpreted as consisting of bremsstrahlung $$gamma$$-rays arriving from a source which is 60-130 m in distance at 90% confidence level. The observed electrons are likely to be dominated by a primary population escaping from an acceleration region in the clouds.

Oral presentation

Radiation measurements associated with lightning and thunderclouds in winter at the coastal area of the Japan Sea

Tsuchiya, Harufumi; Enoto, Teruaki*; Wada, Yuki*; Furuta, Yoshihiro*; Nakazawa, Kazuhiro*; Yuasa, Takayuki*; Okuda, Kazufumi*; Makishima, Kazuo*; Sato, Mitsuteru*; Sato, Yosuke*; et al.

no journal, , 

no abstracts in English

Oral presentation

Observation of a downward terrestrial gamma-ray flash and the flash-induced neutrons

Tsuchiya, Harufumi; Wada, Yuki*; Enoto, Teruaki*; Nakazawa, Kazuhiro*

no journal, , 

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