Japan Geoscience Union Meeting 2014

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International Session (Oral)

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

[P-EM08_2AM2] Space Weather and Space Climate

Fri. May 2, 2014 10:55 AM - 12:45 PM 411 (4F)

Convener:*Ryuho Kataoka(National Institute of Polar Research), Yusuke Ebihara(Research Institute for Sustainable Humanosphere, Kyoto University), Kanya Kusano(Solar-Terrestrial Environment Laboratory, Nagoya University), Toshifumi Shimizu(Institute of Space and Astronautical Science, JAXA), Yoshizumi Miyoshi(Solar-Terrestrial Environement Laboratory, Nagoya University), Ayumi Asai(Unit for Synergetic Studies of Space, Kyoto University), Tatsuhiko Sato(Japan Atomic Energy Agency), Hidekatsu Jin(National Institude of Information and Communications Technology), Kiminori Itoh(Graduate School of Engineering, Yokohama National University), Hiroko Miyahara(College of Art and Design, Musashino Art University), Chair:Hidekatsu Jin(National Institude of Information and Communications Technology)

12:00 PM - 12:15 PM

[PEM08-19] Influence of solar wind on climate: On the factors such as Quasi Biennial Oscillation

*Kiminori ITOH1, Shinya MATSUO1, Kazuyoshi YAMASHITA1 (1.Yokohama National University, Graduate School of Env. & Inf. Sciences)

Keywords:Solar wind, climate, QBO, OLR, temperature

In spite of long history of research, the influence of solar changes on the climate is not convincing enough yet. We have employed solar wind parameter (e.g., Pα (energy flowing into magnetosphere) and aa index) to successfully show their correlation with the temperatures of the stratosphere, troposphere and surface. For further analyses, OLR (outgoing longwave radiation) and the participation of QBO etc. are studied. For instance, January OLR during 1975-2011 showed high correlation with Pα at particular regions. At the QBO westerly phase, high correlation coefficient (r = 0.76) was found near Indonesia. The correlation map at the easterly phase resembled that for the Arctic Oscillation, and r = 0.81 at the Siberia region.