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Validation of Coronal Mass Ejection Arrival-Time Forecasts by Magnetohydrodynamic Simulations based on Interplanetary Scintillation Observations

Autor: Iwai, Kazumasa, Shiota, Daikou, Tokumaru, Munetoshi, Fujiki, Kenichi, Den, Mitsue, Kubo, Yûki

Coronal mass ejections (CMEs) cause various disturbances of the space environment; therefore, forecasting their arrival time is very important. However, forecasting accuracy is hindered by limited CME observations in interplanetary space. This study

Externí odkaz: http://arxiv.org/abs/2012.12635

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Reliable Probability Forecast of Solar Flares: Deep Flare Net-Reliable (DeFN-R)

Autor: Nishizuka, Naoto, Kubo, Yûki, Sugiura, Komei, Den, Mitsue, Ishii, Mamoru

We developed a reliable probabilistic solar flare forecasting model using a deep neural network, named Deep Flare Net-Reliable (DeFN-R). The model can predict the maximum classes of flares that occur in the following 24 h after observing images, alon

Externí odkaz: http://arxiv.org/abs/2007.02564

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Development of a coronal mass ejection arrival time forecasting system using interplanetary scintillation observations

Autor: Iwai, Kazumasa, Shiota, Daikou, Tokumaru, Munetoshi, Fujiki, Kenichi, Den, Mitsue, Kubo, Yûki

Coronal mass ejections (CMEs) cause disturbances in the environment of the Earth when they arrive at the Earth. However, the prediction of the arrival of CMEs still remains a challenge. We have developed an interplanetary scintillation (IPS) estimati

Externí odkaz: http://arxiv.org/abs/1903.11769

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Deep Flare Net (DeFN) model for solar flare prediction

Autor: Nishizuka, Naoto, Sugiura, Komei, Kubo, Yuki, Den, Mitsue, Ishii, Mamoru

We developed a solar flare prediction model using a deep neural network (DNN), named Deep Flare Net (DeFN). The model can calculate the probability of flares occurring in the following 24 h in each active region, which is used to determine the most l

Externí odkaz: http://arxiv.org/abs/1805.03421

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Verification of operational solar flare forecast: Case of Regional Warning Center Japan

Autor: Kubo, Yûki, Den, Mitsue, Ishii, Mamoru

Publikováno v: Journal of Space Weather and Space Climate, 7, A20 (2017)

In this article, we discuss a verification study of an operational solar flare forecast in the Regional Warning Center (RWC) Japan. The RWC Japan has been issuing four-categorical deterministic solar flare forecasts for a long time. In this forecast

Externí odkaz: http://arxiv.org/abs/1707.07903

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太陽フレアAI予報Deep Flare Netの運用化

Autor: Nishizuka, Naoto, Kubo, Yuki, Sugiura, Komei, Den, Mitsue, Ishii, Mamoru

Publikováno v: 宇宙航空研究開発機構特別資料: 第16回「宇宙環境シンポジウム」講演論文集 = JAXA Special Publication: Proceedings of the 16th Spacecraft Environment Symposium. :61-64

第16回宇宙環境シンポジウム (2019年11月12日-13日. 東京都市大学横浜キャンパス), 横浜市, 神奈川県
The 16th Spacecraft Environment Symposium (November 12-13, 2019. Yokohama Campus, Tokyo City University), Yokohama

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::c23dfb1b3155bef8903ee85b47aba2f6
http://id.nii.ac.jp/1696/00046312/

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衛星帯電評価に用いる高解像度磁気圏リアルタイムシミュレータ

Autor: Kubota, Yasubumi, Nakamizo, Aoi, Sakaguchi, Kaori, Den, Mitsue, Kubo, Yuki, Nagatsuma, Tsutomu, Tanaka, Takashi

Publikováno v: 宇宙航空研究開発機構特別資料: 第16回「宇宙環境シンポジウム」講演論文集 = JAXA Special Publication: Proceedings of the 16th Spacecraft Environment Symposium. :73-75

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::f31007ff9ba0f2be6c922e93a265d740
http://id.nii.ac.jp/1696/00046315/

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衛星帯電評価に用いる磁気圏リアルタイムシミュレータ

Autor: Kubota, Yasubumi, Nakamizo, Aoi, Sakaguchi, Kaori, Den, Mitsue, Kubo, Yuki, Nagatsuma, Tsutomu, Higashio, Nana, Tanaka, Takashi

Publikováno v: 宇宙航空研究開発機構特別資料: 第15回「宇宙環境シンポジウム」講演論文集 = JAXA Special Publication: Proceedings of the 15th Spacecraft Environment Symposium. :127-130

第15回宇宙環境シンポジウム (2018年10月30日-31日. 東北大学青葉サイエンスホール), 仙台市, 宮城県
形態: カラー図版あり
Physical characteristics: Original contains color illustrations
資料番�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::d67dc54188cee9b1a34b45386fe50368
http://id.nii.ac.jp/1696/00002899/

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Akademický článek

High Speed Solar Wind Forecast Model from the Solar Surface to 1AU Using Global 3D MHD Simulation.

Autor: Den, Mitsue¹ (AUTHOR) den@nict.go.jp, Tanaka, Takashi^1,2 (AUTHOR), Kubo, Yuki¹ (AUTHOR), Watari, Shinichi¹ (AUTHOR), Foullon, Claire (AUTHOR), Malandraki, Olga E. (AUTHOR)

Publikováno v: Proceedings of the International Astronomical Union. Jul2017, Vol. 13 Issue S335, p272-275. 4p.

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