Publications

Papers (peer-reviwed)

  1. Okajima, S., H. Nakamura, Y. Kaspi: Energetics of transient eddies related to the midwinter minimum of the North Pacific storm-track activity, J. Climate, 35(4), 1137-1156, 2022.Journal Site
  2. Kuwano-Yoshida, A., S. Okajima, H. Nakamura: Rapid increase of explosive cyclone activity over the midwinter North Pacific in the late 1980s, J. Climate, 35(3), 1113-1133, 2022.Journal Site *Press Release (Japanese)*
  3. Okajima, S., H. Nakamura, Y. Kaspi: Cyclonic and anticyclonic contributions to atmospheric energetics, Scientific Reports, 11, 13202, 2021. Journal Site *press release*
  4. Okajima, S., H. Nakamura, K. Nishii, T. Miyasaka, A. Kuwano-Yoshida, B. Taguchi, M. Mori, Y. Kosaka: Mechanisms for the Maintenance of Wintertime Basin-Scale Atmospheric Response to Decadal SST Variability in the North Pacific Subarctic Frontal Zone, J. Climate, 31, 297-315, 2018. Journal Site
  5. Masunaga, R., H. Nakamura, H. Kamahori, K. Onogi, S. Okajima: The JRA-55CHS: An atmospheric reanalysis constructed with high-resolution sea surface temperature, SOLA, 14, 2018, 6-13. Journal Site
  6. Okajima, S., H. Nakamura, K. Nishii, T. Miyasaka, A. Kuwano-Yoshida: Assessing the importance of prominent warm SST anomalies over the midlatitude North Pacific in forcing large-scale atmospheric anomalies during 2011 summer and autumn, J. Climate, 27, 3889-3903, 2014. Journal Site

Awards

  1. 日本海洋学会2016年度春季大会「若手優秀発表賞」ポスター発表部門
  2. 新学術領域研究「変わりゆく気候系における中緯度大気海洋相互作用hotspot」第2回領域全体オンライン会議「若手発表賞」

Reports

  1. Hideharu Sasaki, Masami Nonaka, Akira Kuwano-Yoshida, Satoru Okajima, Yoshikazu Sasai (2014), Understanding Roles of Oceanic Fine Structures in Climate and Its Variability, Annual Report of the Earth Simulator Center April 2014, 9-13.

Proceedings (English)

  1. Satoru Okajima, Hisashi Nakamura, Yohai Kaspi:Cyclonic and anticyclonic contributions to atmospheric energetics, First NORPAN2–ArCS II Bilateral Workshop on the Arctic and Global Climate(Online, 2022.03)
  2. Satoru Okajima, Hisashi Nakamura, Yohai Kaspi, Energetics of the midwinter suppression of the North Pacific storm-track activity, International workshop for mid-latitude air-sea interaction (Online, 2021.06)
  3. Satoru Okajima, Hisashi Nakamura, Kazuaki Nishii, Takafumi Miyasaka, Akira Kuwano-Yoshida, Bunmei Taguchi, Masato Mori, Yu Kosaka, Characteristics and dynamics of seasonality of the North Pacific stormtrack, NORPAN Closing Workshop, Feb 2019, Kanagawa(Japan). (Oral)
  4. Satoru Okajima, Hisashi Nakamura, Kazuaki Nishii, Takafumi Miyasaka, Akira Kuwano-Yoshida, Bunmei Taguchi, Masato Mori, Yu Kosaka, Mechanisms for Maintaining Basin-Scale Atmospheric Response to Decadal Variability of the North Pacific Oceanic Frontal Zone, JpGU Meeting 2018, May 2018, Chiba(Japan). (ポスター)
  5. Satoru Okajima, Hisashi Nakamura, Ryusuke Masunaga ,Hirotaka Kamahori, Chiaki Kobayashi, Interannual modulations of the influence of North Pacific oceanic fronts on the atmosphere as revealed in the JRA-55 family, JpGU-AGU Joint Meeting 2017, May 2017, Chiba(Japan). (Oral)
  6. Satoru Okajima, Hisashi Nakamura, Ryusuke Masunaga ,Hirotaka Kamahori, Chiaki Kobayashi, Interannual modulations of the influence of North Pacific oceanic fronts on the atmosphere as revealed in the JRA-55 family, Workshop on global precipitation systems, November 2016, Yokohama(Japan). (Oral)
  7. Satoru Okajima, Hisashi Nakamura, Kazuaki Nishii, Takafumi Miyasaka, Akira Kuwano-Yoshida, Bunmei Taguchi, Extratropical Frontal- and Meso-scale Air-Sea Interaction: Possibility and mechanism of atmospheric response to wintertime SST anomalies in the North Pacific frontal zone and its relationship to atmospheric internal variability, CLIVAR Open Science Conference, September 2016, Qingtao(China). (Poster)
  8. Satoru Okajima, Hisashi Nakamura, Kazuaki Nishii, Takafumi Miyasaka, Akira Kuwano-Yoshida, Bunmei Taguchi, Wintertime atmospheric response to decadal SST anomalies in the North Pacific frontal zone and its relationship to dominant atmospheric internal variability, NORPAN kick-off meeting, May 2016, Tokyo(Poster)
  9. Satoru Okajima, Hisashi Nakamura, Kazuaki Nishii, Takafumi Miyasaka, Akira Kuwano-Yoshida, Bunmei Taguchi, Wintertime atmospheric response to decadal SST anomalies in the North Pacific frontal zone and its relationship to dominant atmospheric internal variability, 26th Ocean Sciences Meeting, February 2016, New Orleans(USA). (Oral)
  10. Satoru Okajima, Hisashi Nakamura, Kazuaki Nishii, Takafumi Miyasaka, Akira Kuwano-Yoshida, Bunmei Taguchi, Wintertime atmospheric response to decadal SST anomalies in the North Pacific frontal zone and its relationship to atmospheric internal variability, 26th IUGG General Assembly, June 2015, Prague(Czech Rep.). (Oral)
  11. Satoru Okajima, Hisashi Nakamura, Kazuaki Nishii, Takafumi Miyasaka, Akira Kuwano-Yoshida, Assessing the importance of prominent warm SST anomalies and northward shift of oceanic frontal zone over the midlatitude North Pacific in forcing atmospheric anomalies in October, 95th AMS Anuual Meeting, January 2015, Phoenix(USA). (Oral)
  12. Satoru Okajima, Hisashi Nakamura, Kazuaki Nishii, Takafumi Miyasaka, Akira Kuwano-Yoshida, Assessing the importance of prominent warm SST anomalies over the midlatitude North Pacific in forcing atmospheric anomalies during 2011 summer/autumn, AOGS 2014 Meeting, July
  13. Satoru Okajima, Hisashi Nakamura, Kazuaki Nishii, Takafumi Miyasaka, Akira Kuwano-Yoshida, Assessing the importance of prominent warm SST anomalies over the midlatitude North Pacific in forcing atmospheric anomalies during 2011 summer/autumn, 2014 Ocean Sciences Meeting, February 2014, Honolulu, The United States. (Poster)
  14. Satoru Okajima, Hisashi Nakamura, Kazuaki Nishii, Takafumi Miyasaka, Akira Kuwano-Yoshida, Possible influence of prominent SST anomalies in October 2011 over the midlatitude North Pacific on the atmospheric circulation, Davos Atmosphere and Cryosphere Assembly 2013, July 2013, Davos, Switzerland. (Oral)
  15. Satoru Okajima, Hisashi Nakamura, Kazuaki Nishii, Takafumi Miyasaka, Akira Kuwano-Yoshida, Possible Atmospheric Response to Prominent Warm SST Anomalies in the Midlatitude North Pacific during Summer/Autumn 2011, August 2012, Kunming, China. (Poster)
  16. Satoru Okajima, Hisashi Nakamura, Kazuaki Nishii, Takafumi Miyasaka, Akira Kuwano-Yoshida, Possible Atmospheric Response to Prominent Warm SST Anomalies in the Midlatitude North Pacific during Summer/Autumn 2011, 2012 JpGU Meeting, Chiba, May, 2012. (Poster)