17:15 〜 18:30 [AOS03-P02] Trends of oxygen with bidecadal oscillations in the Oyashio region and its propagation to the western North Pacific *笹野 大輔1、高谷 祐介2、小杉 如央1、緑川 貴1、中野 俊也2、石井 雅男1 (1.気象研究所、2.気象庁)