日本地球惑星科学連合2014年大会

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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-EM09_29AM2] VarSITI - Variability of the Sun and Its Terrestrial Impact

2014年4月29日(火) 11:00 〜 12:45 501 (5F)

コンビーナ:*塩川 和夫(名古屋大学太陽地球環境研究所)、坂尾 太郎(独立行政法人宇宙航空研究開発機構 宇宙科学研究所 太陽系科学研究系)、廣岡 俊彦(九州大学大学院理学研究院地球惑星科学部門)、座長:江尻 省(国立極地研究所)、鈴木 臣(名古屋大学太陽地球環境研究所)

11:30 〜 11:45

[PEM09-31] Trend of SST anomalies and Solar Activity

*YAMASHIKI Yosuke1 (1.GSAIS, Kyoto University)

キーワード:Solar activity, SST, Anomalies

The tendency of anomalies of SST during the fluctuation of Sunspot numbers are studied using composite SST and fluctuation of SSN.In general, El Nino tendency is observed during Sunspot numbers (SSN) minimum, while La Nina tendency is observed in SSN maximum. It is generally accepted that the frequency of Solar Activity varies in 11 years, during those years there are SSN maximum and minimum. On the other hand, SST anomalies do not correspond well to the frequency of the solar activity. In addition, the thermal structure of sea surface temperature (SST) varies during El Nino and La Nina. Moreover, the impact of large-scale solar flare on the SST has not been clearly evident for the 4 days backward and forward comparison for the flare event on 2 April 2001 and 28 October 2003 on SST, wind velocity and OLR. Since the ocean has higher heat capacity, this might prevent the appearance of immediate SSN effect through the surge of any frequency in any band of electromagnetic waves from the SUN. The subtle impact might be confirmed either through cloud or wind. The long-term impact should also be considered by precise integration of the total energy on each wavelength. Numerical simulation is also expected to validate this issue.