日本地球惑星科学連合2019年大会

講演情報

[E] ポスター発表

セッション記号 P (宇宙惑星科学) » P-EM 太陽地球系科学・宇宙電磁気学・宇宙環境

[P-EM12] Space Weather and Space Climate

2019年5月28日(火) 17:15 〜 18:30 ポスター会場 (幕張メッセ国際展示場 8ホール)

コンビーナ:片岡 龍峰(国立極地研究所)、Antti A Pulkkinen(NASA Goddard Space Flight Center)、草野 完也(名古屋大学宇宙地球環境研究所)、坂口 歌織(情報通信研究機構)

[PEM12-P01] Reconnection signatures in solar magnetograms during the solar storms of 4-10 September 2017

*Robert Dean Loper1,2 (1.Air Force Institute of Technology, Department of Engineering Physics、2.National Center for Atmospheric Research, High Altitude Observatory)

キーワード:solar atmosphere, sunspots, magnetogram, solar flares

Solar flare forecasting is limited to active region classification and historical correlation, due largely to our lack of understanding of magnetic reconnection as a driving mechanism for solar flares and coronal mass ejections. Photospheric observations indicate magnetic field changes during solar flares, brought about during magnetic reconnection and related to magnetic field helicity on the solar surface. While the neutral point of the reconnection event associated with a flare usually occurs in the solar corona, some signs of the magnetic field changes should manifest as low as the photosphere. This study utilizes data from SDO HMI and Space-Weather HMI Active Regions Patches (SHARPS) to analyze full vector field component data in the photospheric magnetic field during several magnetic reconnection events during the space weather events of 4-10 September 2017.