Research Interests / 研究内容 We are investigating circulation mechanism in lakes, such as Lake Biwa (Japan) and Lake Baikal (the world's deepest lake in Russia). 琵琶湖やバイカル湖（ロシアに有る世界最大水深の湖）などの湖水の循環力学を調べています。 Lake Circulations / 湖水循環   Simulated circulations in Lake Biwa 琵琶湖の循環シミュレーション  Simulated deep convection in Lake Baikal バイカル湖の深い対流シミュレーション [ Representative Papers / 論文] Akitomo et al. (2009): Annual cycle of circulations in Lake Biwa, part 2: Mechanisms. Limnology 10 119-129. Akitomo et al. (2009): Annual cycle of circulations in Lake Biwa, part 1: Model validation. Limnology 10 105-118. Akitomo et al. (1995): Deep convection in a lake triggered by wind: Two-dimensional numerical experiments with a nonhydrostatic model. Journal of Oceanography 51 171-185. [ Abridged Editions / 抄訳] 秋友 (2018): 夏季の琵琶湖に見られる環流とその形成メカニズム. 水利科学 62(2) 10-31 (in Japanese). 秋友ら (1994): 淡水湖における深い対流. 月刊海洋号外 6 161-165 (in Japanese).