Japan Geoscience Union Meeting 2019

Presentation information

Print

[E] Poster

P (Space and Planetary Sciences ) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM12] Space Weather and Space Climate

Tue. May 28, 2019 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

convener:Ryuho Kataoka(National Institute of Polar Research), Antti A Pulkkinen(NASA Goddard Space Flight Center), Kanya Kusano(Institute for Space-Earth Environmental Research, Nagoya University), Kaori Sakaguchi(National Institute of Information and Communications Technology)

[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)

Keywords: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.