Research field (3)：
Environmental dynamics
, Space and planetary science
, Biogeoscience
Research theme for competitive and other funds (2)：
2020 - 2025 サンゴ骨格に記録される産業革命以降の海洋貧酸素水塊の拡大
2020 - 2022 Coral proxy archives infer relationships between climate changes and social stabilities in the Near East
Papers (6)：
Takaaki K, Watanabe, Tsuyoshi Watanabe, Atsuko Yamazaki, Miriam Pfeiffer. Oman corals suggest that a stronger winter shamal season caused the Akkadian Empire (Mesopotamia) collapse. Geology. 2019
Tsuyoshi Watanabe, Takaaki K, Watanabe, Atsuko Yamazaki, Shiori Yoneta, Kohki Sowa, Frederic Sinniger, Gal Eyal, Yossi Loya, Saki Harii. Coral Sclerochronology: Similarities and Differences in the Coral Isotopic Signatures Between Mesophotic and Shallow-Water Reefs. Coral Reefs of the World Series: Mesophotic Coral Ecosystems. 2019. 12
Takaaki K, Watanabe, Tsuyoshi Watanabe, Atsuko Yamazaki, Miriam Pfeiffer, Michel R. Claereboudt. Oman coral δ 18 O seawater record suggests that Western Indian Ocean upwelling uncouples from the Indian Ocean Dipole during the global-warming hiatus. Scientific Reports. 2019. 9. 1887
Takaaki K, Watanabe, Tsuyoshi Watanabe, Atsuko Yamazaki, Miriam Pfeiffer, Dieter Garbe-Schönberg, Michel R. Claereboudt. Past summer upwelling events in the Gulf of Oman derived from a coral geochemical record. Scientific Reports. 2017. 7. 4568
