[A-CG44] Extratropical oceans and atmosphere

convener:Youichi Kamae(Faculty of Life and Environmental Sciences, University of Tsukuba), Toyama Katsuya(Meteorological Research Institute), Hyodae Seo(Woods Hole Oceanographic Institution), Yoshi N(Hokkaido University)

The extratropical ocean had been considered passive to atmospheric variability. Recent studies, however, revealed active roles of the extratropical ocean in modulating the atmosphere. The goal of this session is to deepen our understanding of the air-sea interaction in the extratropics. A wide variety of researches whose topics range from meso-scale to basin-scale interactions, and from daily to global warming timescales are welcomed. Researches on topics related to extratropical air-sea interaction, including cloud, aerosol, and ecosystem, are also welcomed.

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[ACG44-P01] Seasonality and Regional Characteristics of Sea-Surface Wind Responses to Mesoscale SST Features assessed by Transfer Functions

*Ryusuke Masunaga¹, Niklas Schneider¹ (1.International Pacific Research Center, University of Hawaii)

[ACG44-P02] Ocean warming patterns and heavy rainfall over East Asia associated with atmospheric rivers

*Youichi Kamae¹, Wei Mei² (1.Faculty of Life and Environmental Sciences, University of Tsukuba, 2.University of North Carolina at Chapel Hill)

[ACG44-P03] Predictability of 2019 stratospheric sudden warming in the Southern Hemisphere and its impact of surface weather

*Hiroaki Naoe¹, Chiaki Kobayashi¹, Yayoi Harada¹, Yukiko Imada¹, Shuhei Maeda¹, Toshihiko Hirooka² (1.Meteorological Research Institute, 2.Kyusyu University)

[ACG44-P04] Interaction between a typhoon moving westward in western Japan and a cold vortex

*Mine Taisei¹, Yoshihiro Tachibana¹ (1.Faculty of Bioresources, Mie University)

[ACG44-P05] On the maintenance mechanisms for the wintertime subtropical high over the South Indian Ocean

*Ayumu Miyamoto¹, Hisashi Nakamura¹, Takafumi Miyasaka^1,2, Yu Kosaka¹, Bunmei Taguchi³, Kazuaki Nishii⁴ (1.Research Center for Advanced Science and Technology, The University of Tokyo, 2.Japan Meteorological Business Support Center, 3.School of Sustainable Design, University of Toyama, 4.Graduate School of Bioresources, Mie University)

[ACG44-P06] Surface velocity variation of the Kuroshio-Kuroshio Extension system -its relations with local monsoon winds-

*YUXIANG QIAO¹, Hirohiko Nakamura², Kako Shinichiro³, Ayako Nishina² (1.The United Graduate School of Agricultural Sciences, Kagoshima University, 2.Faculty of Fisheries, Kagoshima University, 3.Graduate School of Science and Engineering, Kagoshima University)

[ACG44-P07] The potential impact of the 2014-2016 marine heat wave over the North Pacific on the atmosphere

*Kazuaki Nishii¹, Bunmei Taguchi², Hisashi Nakamura³ (1.Graduate School of Bioresources, Mie University, 2. Faculty of Sustainable Design, University of Toyama, 3.Research Center for Advanced Science and Technology, The University of Tokyo)