Laurie Charrieau¹, Helena L Filipsson², Yukiko Nagai^1,3, Sachiko Kawada⁴, Sunaho Kubo⁴, Nanami Kishigami¹, Karl Ljung², Emma Kritzberg² and Takashi Toyofuku¹, (1)JAMSTEC Japan Agency for Marine-Earth Science and Technology, X-STAR, Kanagawa, Japan, (2)Lund University, Lund, Sweden, (3)Yokohama National University, Yokohama, Japan, (4)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan