Global Climate Dynamics lab

小坂 優 – 業績

受賞

  • Outstanding Editor Award, Advances in Atmospheric Sciences, 2022 AAS web site
  • 第4回地球惑星科学振興西田賞 JpGU web site
    業績名: 気候変動と異常気象に関わる熱帯大気海洋相互作用と遠隔影響メカニズムの研究
  • 平成30年度 東京大学卓越研究員 (公募型) 東京大学 web site
  • Esteemed Review Paper Prize 2018, Advances in Atmospheric Sciences
    受賞対象論文: S.-P. Xie, Y. Kosaka, Y. Du, K. Hu, J. Chowdary and G. Huang: Indo-western Pacific ocean capacitor and coherent climate anomalies in post-ENSO summer: A review. Adv. Atmos. Sci., 33, 411-432 (2016). AAS web site
  • Editors’ Award, Journal of Climate, 2018 AMS web site
  • 2017年度 日本気象学会正野賞 
    業績名: 熱帯大気海洋結合変動がもたらす気候影響のメカニズムと予測可能性の研究 日本気象学会 web site
  • 日本地球惑星科学連合2016年大会 ハイライト論文 
    受賞対象論文: 小坂 優, 謝 尚平, 久保田 尚之, Yan Du, Kaiming Hu, Jasti S. Chowdary and Gang Huang “インド洋-西太平洋キャパシターモードとENSO衰退年夏季の異常気象”
  • 平成28年度 科学技術分野の文部科学大臣表彰 若手科学者賞
    業績名: 異常気象や地球温暖化に関わる熱帯気候変動と遠隔影響の研究 文部科学省 web site
  • Editor’s Award, Advances in Atmospheric Sciences, 2016 AAS web site
  • 日本地球惑星科学連合2015年大会 ハイライト論文 JpGU web site
    受賞対象論文: 小坂 優, 謝 尚平 “Hiatus and accelerated global warming due to tropical Pacific natural variability”
  • 2010年度 日本気象学会山本・正野論文賞 
    受賞対象論文: Y. Kosaka, H. Nakamura, M. Watanabe, M. Kimoto: Analysis on the Dynamics of a Wave-like Teleconnection Pattern along the Summertime Asian Jet Based on a Reanalysis Dataset and Climate Model Simulations. J. Meteor. Soc. Japan, 561-580, 2009. Article link

原著論文

  • I. Richter, S. Kido, T. Tozuka, Y. Kosaka, H. Tokinaga, and P. Chang: Revisiting the inconsistent influence of El Niño-Southern Oscillation on the equatorial Atlantic. J. Climate, accepted.
  • P. Martineau, H. Nakamura, Y. Kosaka, S. K. Behera, and M. Nonaka: Seasonal amplification of subweekly temperature variability over extratropical Southern Hemisphere land masses. npj Climate and Atmospheric Science, accepted.
  • P. Zhang, S.-P. Xie, Y. Kosaka, N. J. Lutsko, Y. M. Okumura, and A. Miyamoto: Why East Asian monsoon anomalies are more robust in post El Niño than in post La Niña summers. Nature Communications, 15, 7401 (2024). Article link
  • M. Toda, Y. Kosaka, A. Miyamoto, and M. Watanabe: Walker circulation strengthening driven by sea surface temperature changes outside the tropics. Nature Geoscience, 17, 858–865 (2024). Article link Press release
  • H.-S. Tang, Y. Zhang, Y. Kosaka, J.-C. Yang, Q. Shu, Y. Liu, and X. Lin: Positive Feedback between the Negative Phase of Interannual Component of the Pacific Decadal Oscillation and La Niña. Climate Dynamics, 62, 8319-8332 (2024). Article link
  • M. Mori, H. Tokinaga, Y. Kosaka, H. Nakamura, B. Taguchi, and H. Tatebe: The influence of extratropical ocean on the PNA teleconnection: Role of atmosphere-ocean coupling. Geophys. Res. Lett., 51, e2024GL110234 (2024). Article link
  • X. Geng, J.-S. Kug, and Y. Kosaka: Future changes in the wintertime ENSO-NAO teleconnection under greenhouse warming. npj Climate and Atmospheric Science, 7, 81 (2024). Article link 
  • M. Mori, Y. Kosaka, B. Taguchi, H. Tokinaga, H. Tatebe, and H. Nakamura: Northern Hemisphere winter atmospheric teleconnections are intensified by extratropical ocean-atmosphere coupling. Communications Earth & Environment, 5, 124 (2024). Article link Press release
  • P. Martineau, S. K. Behera, M. Nonaka, H. Nakamura, and Y. Kosaka: Seasonally dependent increases in subweekly temperature variability over Southern Hemisphere landmasses detected in multiple reanalyses. Weather and Climate Dynamics, 5, 1–15 (2024). Article link
  • M. M. Dogar, M. Fujiwara, M. Zhao, M. Ohba, and Y. Kosaka: ENSO and NAO linkage to strong volcanism and associated post-volcanic high-latitude winter warming. Geophys. Res. Lett., 50, e2023GL106114 (2024). Article link
  • P. Zhang, S.-P. Xie, Y. Kosaka, and N. J. Lutsko: Non-ENSO precursors for Northwestern Pacific summer monsoon variability with implications for predictability. J. Climate, 37, 199–212 (2024). Article link
  • A. Miyamoto, H. Nakamura, S.-P. Xie, T. Miyasaka, and Y. Kosaka: Radiative impacts of Californian marine low clouds on North Pacific climate in a global climate model. J. Climate, 36, 8443–8459 (2023). Article link
  • H. Shiogama, H. Tatebe, M. Hayashi, M. Abe, M. Arai, H. Koyama, Y. Imada, Y. Kosaka, T. Ogura, and M. Watanabe: MIROC6 Large Ensemble (MIROC6-LE): experimental design and initial analyses. Earth System Dynamics, 14, 1107-1124 (2023). Article link
  • P. Martineau, S. K. Behera, M. Nonaka, H. Nakamura, and Y. Kosaka: Tropical Pacific influence on summertime South African high-frequency temperature variability and heat waves. Geophys. Res. Lett., 50, e2022GL101983 (2023). Article link
  • Q. Shu, Y. Zhang, D. J. Amaya, S. M. Larson, Y. Kosaka, J.-C. Yang, and X. Lin: Role of ocean advections during the evolution of the Pacific Meridional Modes. J. Climate, 36, 4327-4343 (2023). Article link
  • A. Seiki, Y. Kosaka, and S. Yokoi: Development of synoptic-scale disturbances over the tropical western North Pacific associated with the boreal summer intraseasonal oscillation and the interannual Pacific-Japan pattern. J. Meteor. Soc. Japan, 101, 103-123 (2023). Article link
  • I. Richter, Y. Kosaka, S. Kido, and H. Tokinaga: The tropical Atlantic as a negative feedback on ENSO. Climate Dynamics, 61, 309–327 (2023). Article link
  • S. Sekizawa, H. Nakamura, and Y. Kosaka: Interannual variability of the Australian summer monsoon sustained through internal processes: wind-evaporation feedback, dynamical air-sea interaction and soil moisture memory. J. Climate, 36, 983-1000 (2023). Article link
  • K. Nishii, B. Taguchi, M. Mori, Y. Kosaka, and H. Nakamura: Arctic Sea ice loss and Eurasian cooling in winter 2020-21. SOLA, 18, 199-204 (2022). Article link
  • P. Martineau, H. Nakamura, A. Yamamoto, and Y. Kosaka: Baroclinic blocking. Geophys. Res. Lett., 49, e2022GL097791 (2022). Article link
  • S. McGregor, C. Cassou, Y. Kosaka, and A. S. Phillips: Projected ENSO teleconnection changes in CMIP6. Geophys. Res. Lett., 49, e2021GL097511 (2022). Article link
  • Y. Zhang, S.-Y. Yu, S.-P. Xie, D. J. Amaya, Q. Peng, Y. Kosaka, X. Lin, J.-C. Yang, S. M. Larson, A. J. Miller, and L. Fan: Role of ocean dynamics in equatorial Pacific decadal variability. Climate Dynamics, 59, 2517–2529 (2022). Article link
  • Y. Zhang, S.-Y. Yu, D. J. Amaya, Y. Kosaka, M. F. Stuecker, J.-C. Yang, X. Lin, and L. Fan: Atmospheric forcing of the Pacific Meridional Mode: Tropical Pacific-driven versus internal variability. Geophys. Res. Lett., 49, e2022GL098148 (2022). Article link
  • A. Miyamoto, H. Nakamura, T. Miyasaka, Y. Kosaka, B. Taguchi, and K. Nishii: Maintenance mechanisms of the wintertime subtropical high over the South Indian Ocean, Journal of Climate, 35, 2989-3005 (2022). Article link
  • A. Miyamoto, H. Nakamura, T. Miyasaka, and Y. Kosaka: Wintertime weakening of low-cloud impacts on the subtropical high in the South Indian Ocean. J. Climate, 35, 323-334 (2022). Article link
  • S. Sekizawa, H. Nakamura, and Y. Kosaka: Remote influence of the interannual variability of the Australian summer monsoon on wintertime climate in East Asia and the western North Pacific. J. Climate, 34, 9551-9570 (2021). Article link
  • A. Seiki, Y. Kosaka, and S. Yokoi: Relationship between the boreal summer intraseasonal oscillation and the Pacific-Japan pattern and its interannual modulations. Scientific Online Lett. Atmosphere, 17, 177-183 (2021). Article link
  • I. Richter, H. Tokinaga, Y. Kosaka, T. Doi, and T. Kataoka: Revisiting the tropical Atlantic influence on El Niño-Southern Oscillation. J. Climate, 34, 8533-8548 (2021). Article link
  • T. Horinouchi, Y. Kosaka, H. Nakamigawa, H. Nakamura, N. Fujikawa, and Y. N. Takayabu: Moisture supply, jet, and Silk-Road wave train associated with the prolonged heavy rainfall in Kyushu, Japan in early July 2020. SOLA, 17B, 1-8 (2021). Article link
  • Y. Zhang, S. Yu, D. J. Amaya, Y. Kosaka, S. M. Larson, X. Wang, J.-C. Yang, M. F. Stuecker, S.-P. Xie, A. J. Miller and X. Lin: Pacific Meridional Modes without equatorial Pacific influence. J. Climate, 34, 5285-5301 (2021). Article link
  • P. Martineau, H. Nakamura and Y. Kosaka: Influence of ENSO on North American subseasonal surface air temperature variability. Weather and Climate Dynamics, 2, 395-412 (2021). Article link
  • K. Hu, G. Huang, P. Huang, Y. Kosaka and S.-P. Xie: Intensification of El Niño-induced atmospheric anomalies under greenhouse warming. Nature Geoscience, 14, 377-382 (2021). Article link readcube
  • A. Miyamoto, H. Nakamura, T. Miyasaka and Y. Kosaka: Radiative impacts of low-level clouds on the summertime subtropical high in the south Indian Ocean simulated in a coupled general circulation model. J. Climate, 34, 3991-4007 (2021). Article link
  • Y. Takaya, Y. Kosaka, M. Watanabe and S. Maeda: Skilful predictions of the Asian summer monsoon one year ahead. Nature Communications, 12, 2094 (2021). Article link press release@RCAST
  • M. Mori, Y. Kosaka, M. Watanabe, B. Taguchi, H. Nakamura and M. Kimoto: Reply to: Eurasian cooling in response to Arctic sea-ice loss is not proved by maximum covariance analysis. Nature Climate Change, 11, 109-111 (2021). Article link readcube
  • Q. Sun, Y. Du, S.-P. Xie, Y. Zhang, M. Wang and Y. Kosaka: Sea surface salinity change since 1950: Internal variability versus anthropogenic forcing. J. Climate, 34, 1305-1319 (2021). Article link
  • H. Wang, S.-P. Xie, X.-T. Zheng, Y. Kosaka, Y. Xu and Y.-F. Geng: Dynamics of Southern Hemisphere atmospheric circulation response to anthropogenic aerosol forcing. Geophys. Res. Lett., 47, e2020GL089919 (2020). Article link
  • M. Watanabe, J.-L. Dufresne, Y. Kosaka, T. Mauritsen and H. Tatebe: Enhanced warming constrained by past trends in equatorial Pacific sea surface temperature gradient. Nature Climate Change, 11, 33-37 (2021). Article link readcube press release@RCAST
  • P. Martineau, H. Nakamura, Y. Kosaka, B. Taguchi and M. Mori: Modulations of North American and European weather variability and extremes by interdecadal variability of the atmospheric circulation over the North Atlantic sector. J. Climate, 33, 8125-8146 (2020). Article link
  • P. Martineau, H. Nakamura, Y. Kosaka and A. Yamamoto: Importance of a vertically tilting structure for energizing the North Atlantic Oscillation. Scientific Reports, 10, 12671 (2020). Article link readcube
  • D. J. Amaya, A. J. Miller, S.-P. Xie and Y. Kosaka: Physical drivers of the summer 2019 North Pacific marine heatwave. Nature Comm., 11, 1903 (2020). Article link readcube
  • J.-C. Yang, X. Lin, S.-P. Xie, Y. Zhang, Y. Kosaka and Z. Li: Synchronized tropical Pacific and extratropical variability during the past three decades. Nature Clim. Change, 10, 422–427 (2020). Article link readcube
  • C.-Y. Wang, S.-P. Xie and Y. Kosaka: ENSO-Unrelated Variability in Indo–Northwest Pacific Climate: Regional Coupled Ocean–Atmospheric Feedback. J. Climate, 33, 4095–4108 (2020). Article link
  • M.-K. Sung, C. Yoo, S.-W. Yeh, Y. Kosaka and S.-I. An: Characteristics of the North Pacific Oscillation in CMIP5 models in relation to atmospheric mean states. J. Climate, 33, 3809–3825 (2020). Article link
  • M. Mori, Y. Kosaka, M. Watanabe, B. Taguchi, H. Nakamura and M. Kimoto: Reply to: Is sea-ice-driven Eurasian cooling too weak in models? Nature Climate Change, 9, 937–939 (2019). Article link readcube
  • S. Kang, M. Hawcroft, B. Xiang, Y.-T. Hwang, G. Cazes, F. Codron, T. Crueger, C. Deser, Ø. Hodnebrog, H. Kim, J. Kim, Y. Kosaka, T. Losada, C. R. Mechoso, G. Myhre, Ø. Seland, B. Stevens, M. Watanabe, S. Yu: Extratropical-Tropical Interaction Model Intercomparison Project (ETIN-MIP) – Protocol and Initial Results. Bull. Amer. Meteor. Soc., 100, 2589–2606 (2019). Article link
  • D. Amaya, Y. Kosaka, W. Zhou, Y. Zhang, S.-P. Xie and A. J. Miller: The North Pacific pacemaker effect on historical ENSO and its mechanisms. J. Climate, 32, 7643-7661 (2019). Article link
  • S. Matsumura and Y. Kosaka: Arctic–Eurasian climate linkage induced by tropical ocean variability. Nature Communications, 10, 3441 (2019). Article link
  • H. Tokinaga, I. Richter and Y. Kosaka: ENSO influence on the Atlantic Niño, revisited: Multi-year versus single-year ENSO events. J. Climate, 32, 4585–4600 (2019). Article link
  • M. Mori, Y. Kosaka, M. Watanabe, H. Nakamura and M. Kimoto: A reconciled estimate of the influence of Arctic sea-ice loss on recent Eurasian cooling. Nature Climate Change, 9, 123-129 (2019). Article link readcube
  • H. Wang, S.-P. Xie, Y. Kosaka, Q. Liu and Y. Du: Dynamics of Asian Summer Monsoon Response to Anthropogenic Aerosol Forcing. J. Climate, 32, 843–858 (2019). Article link
  • C. Takahashi, H. Shiogama, Y. Imada, Y. Kosaka, M. Mori, M. Arai, Y. Kamae and M. Watanabe: The effects of natural variability and climate change on the record low sunshine over Japan during August 2017. Bull. Amer. Meteor. Soc., 100, S67-71 (2019). Article link
  • C.-Y. Wang, S.-P. Xie and Y. Kosaka: Indo-western Pacific climate variability: ENSO forcing and internal dynamics in a tropical Pacific pacemaker simulation. J. Climate, 31, 10123-10139 (2018). Article link
  • Y. Yang, S.-P. Xie, L. Wu, Y. Kosaka and J. Li: ENSO forced and local variability of North Tropical Atlantic SST: model simulations and biases. Climate Dynamics, 51, 4511-4524 (2018).  Article link
  • Y. Zhang, S.-P. Xie, Y. Kosaka and J.-C. Yang: Pacific Decadal Oscillation: Tropical Pacific forcing versus internal variability. J. Climate, 31, 8265-8279 (2018). Article link
  • S. Sekizawa, H. Nakamura and Y. Kosaka: Interannual variability of the Australian summer monsoon system internally sustained through wind-evaporation feedback. Geophys. Res. Lett., 45, 7748–7755 (2018). Article link
  • X. Jin, Y.-O. Kwon, C. C. Ummenhofer, H. Seo, Y. Kosaka and J. S. Wright: Distinct Mechanisms of Decadal Subsurface Heat Content Variations in the Eastern and Western Indian Ocean Modulated by Tropical Pacific SST. J. Climate, 31, 7751–7769 (2018). Article link
  • N. C. Johnson, S.-P. Xie, Y. Kosaka and X. Li: Increasing occurrence of cold and warm extremes during the recent global warming slowdown. Nature Comm., 9, 1724 (2018). Article link
  • G. Srinivas, J. S. Chowdary, Y. Kosaka, C. Gnanaseelan, A. Parekh and K.V.S.R. Prasad: Influence of the Pacific-Japan Pattern on Indian summer monsoon rainfall. J. Climate, 31, 3943-3958 (2018). Article link
  • S. Okajima, H. Nakamura, K. Nishii, T. Miyasaka, A. Kuwano-Yoshida, B. Taguchi, M. Mori and 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). Article link
  • N. Siler, Y. Kosaka, S.-P. Xie and X. Li: Tropical ocean contributions to California’s surprisingly dry El Niño of 2015-16. J. Climate, 30, 10067-10079 (2017). Article link
  • Y. Yang, J. Li, L. Wu, Y. Kosaka, Y. Du, C. Sun, F. Xie and J. Feng: Decadal Indian Ocean dipolar variability and its relationship with the tropical Pacific. Adv. Atmos. Sci., 34, 1282-1289 (2017). Article link
  • Y. Yang, S.-P. Xie, L. Wu, Y. Kosaka and J. Li: Causes of Enhanced SST Variability over the Equatorial Atlantic and Its Relationship to the Atlantic Zonal Mode in CMIP5. J. Climate, 30, 6171-6182 (2017). Article link
  • C.-Y. Wang, S.-P. Xie, Y. Kosaka, Q. Liu and X.-T. Zheng: Global influence of tropical Pacific variability with implications for global warming slowdown. J. Climate, 30, 2679-2695 (2017). Article link
  • Y. Kosaka and S.-P. Xie: The tropical Pacific as a key pacemaker of the variable rates of global warming. Nature Geosci, 9, 669-673 (2016). Article link readcube
  • N. C. Johnson and Y. Kosaka: The impact of eastern equatorial Pacific convection on the diversity of boreal winter El Niño teleconnection patterns. Climate Dyn., 47, 3737–3765 (2016). Article link
  • H. Wang, S.-P. Xie, H. Tokinaga, Q. Liu and Y. Kosaka: Detecting cross-equatorial wind change as a fingerprint of climate response to anthropogenic aerosol forcing. Geophys. Res. Lett., 43, 3444–3450 (2016). Article link
  • H. Kubota, Y. Kosaka, S.-P. Xie: A 117-year long index of the Pacific-Japan pattern with application to interdecadal variability. Int. J. Climatology, 36, 1575-1589 (2016). Article link
  • J. C. Fyfe, G. A. Meehl, M. H. England, M. E. Mann, B. D. Santer, G. M. Flato, E. Hawkins, N. P. Gillett, S.-P. Xie, Y. Kosaka and N. Swart: Making sense of the early-2000s global warming slowdown. Nature Clim. Change, 6, 224-228 (2016). Article link readcube Nature News
  • S.-P. Xie, Y. Kosaka and Y. M. Okumura: Distinct energy budgets for anthropogenic and natural changes during global warming hiatus. Nature Geosci, 9, 29-33 (2016). Article link readcube
  • Y. Yang, S.-P. Xie, L. Wu, Y. Kosaka, N.-C. Lau and G. A. Vecchi: Seasonality and predictability of the Indian Ocean Dipole Mode: ENSO forcing and internal variability. J. Climate, 28, 8021-8036 (2015). Article link
  • H.-S. Park, S. Lee, Y. Kosaka, S.-W. Son and S.-W. Kim: The impact of Arctic winter infrared radiation on early summer sea ice. J. Climate, 28, 6281-6296 (2015). Article link
  • H.-S. Park, S. Lee, S.-W. Son, S. B. Feldstein and Y. Kosaka: The impact of poleward moisture intrusion on Arctic winter sea-ice variability. J. Climate, 28, 5030-5040 (2015). Article link
  • M. Feng, H. H. Hendon, S.-P. Xie, A. Marshall, A. Schiller, Y. Kosaka, N. Caputi and A. Pearce: Decadal increase in Ningaloo Niño since the late 1990s. Geophys. Res. Lett., 42, 104-112 (2015). Article link
  • J.-Y. Lee, B. Wang, K.-H. Seo. J.-S. Kug, Y.-S. Choi, Y. Kosaka, K.-J. Ha: Future change of Northern Hemisphere summer tropical-extratropical teleconnection in CMIP5 models. J. Climate, 27, 3643-3664 (2014). Article link
  • J. S. Chowdary, R. Attada, J.-Y. Lee, Y. Kosaka, J.-J. Luo, C. Gnanaseelan, A. Parekh and D.-Y. Lee: Seasonal prediction of distinct climate anomalies in the summer 2010 over the tropical Indian Ocean and South Asia. J. Meteor. Soc. Japan, 92, 1-16 (2014). Article link
  • Y. Kosaka, S.-P. Xie: Recent global-warming hiatus tied to equatorial Pacific surface cooling. Nature, 501, 403-407 (2013). Article link readcube Nature News Nature Editorial News&Views
  • Y. Kosaka, S.-P. Xie, N.-C. Lau, G. A. Vecchi: Origin of seasonal predictability for summer climate over the Northwestern Pacific, Proc. Natl. Acad. Sci. USA, 110, 7574-7579 (2013). Article link 
    SIO Press Release
  • H. Tokinaga, S.-P. Xie, C. Deser, Y. Kosaka, Y. M. Okumura: Slowdown of the Walker circulation driven by tropical Indo-Pacific warming, Nature, 491, 439-443 (2012). Article link readcube
  • Y. Kosaka, J. S. Chowdary, S.-P. Xie, Y.-M. Min, J.-Y. Lee: Limitations of seasonal predictability for summer climate over East Asia and the Northwestern Pacific, J. Climate, 25, 7574-7589 (2012). Article link
  • K. Nishii, T. Miyasaka, H. Nakamura, Y. Kosaka, S. Yokoi, Y. Takayabu, H. Endo, H. Ichikawa, T. Inoue, K. Oshima, N. Sato, Y. Tsushima: Relationship of the Reproducibility of Multiple Variables among Global Climate Models, J. Meteorol. Soc. Japan, 90A, 87-100 (2012). Article link
  • J. Ma, S.-P. Xie, Y. Kosaka, Mechanisms for tropical tropospheric circulation change in response to global warming, J. Climate, 25, 2979-2994 (2012). Article link
  • Y. Kosaka, S.-P. Xie, H. Nakamura: Dynamics of interannual variability in summer precipitation over East Asia, J. Climate, 24, 5435-5453 (2011). Article link
  • S. Yokoi, Y. N. Takayabu, K. Nishii, H. Nakamura, H. Endo, H. Ichikawa, T. Inoue, M. Kimoto, Y. Kosaka, T. Miyasaka, K. Oshima, N. Sato, Y. Tsushima, M. Watanabe: Application of cluster analysis to climate model performance metrics, J. Appl. Meteorol. Climatol., 50, 1666-1675 (2011). Article link
  • Y. Kosaka, H. Nakamura: Dominant mode of climate variability, intermodel diversity and projected future changes over the summertime western North Pacific simulated in the CMIP3 models, J. Climate, 24, 3935-3955 (2011). Article link
  • J. S. Chowdary, S.-P. Xie, J.-Y. Lee, Y. Kosaka, B. Wang: Predictability of summer Northwest Pacific climate in eleven coupled model hindcasts: local and remote forcing. J. Geophys. Res., 115, D22121, doi:10.1029/2010JD014595 (2010). Article link
  • Y. Kosaka, H. Nakamura: Mechanisms of meridional teleconnection observed between a summer monsoon system and a subtropical anticyclone. Part II: A global survey, J. Climate, 23, 5109-5125 (2010). Article link
  • Y. Kosaka, H. Nakamura: Mechanisms of meridional teleconnection observed between a summer monsoon system and a subtropical anticyclone. Part I: The Pacific-Japan pattern, J. Climate, 23, 5085-5108 (2010). Article link
  • K. Nishii, T. Miyasaka, Y. Kosaka, H. Nakamura: Reproducibility and future projection of the midwinter storm-track activity over the Far East in the CMIP3 climate models in relation to the occurrence of the first spring storm (Haru-Ichiban) over Japan, J. Meteor. Soc. Japan, 87, 581-588 (2009). Article link
  • Y. Kosaka, H. Nakamura, M. Watanabe, M. Kimoto: Analysis on the Dynamics of a Wave-like Teleconnection Pattern along the Summertime Asian Jet Based on a Reanalysis Dataset and Climate Model Simulations. J. Meteor. Soc. Japan, 87, 561-580, (2009). Article link 
  • Y. Kosaka, H. Nakamura: A comparative study on the dynamics of the Pacific-Japan (PJ) teleconnection pattern based on reanalysis datasets. SOLA, 4, 9-12 (2008). Article link
  • Y. Kosaka, H. Nakamura: Structure and dynamics of the summertime Pacific-Japan teleconnection pattern. Quart. J. Roy. Meteor. Soc., 132, 2009-2030 (2006). Article link

レビュー論文

  • A. Capotondi, S. McGregor, M. McPhaden, S. Cravatte, N. Holbrook, Y. Imada, S. Sanchez, J. Sprintall, M. Stuecker, C. Ummenhofer, M. Zeller, R. Farneti, G. Graffino, S. Hu, K. Karnauskas, Y. Kosaka, F. Kucharski, M. Mayer, B. Qiu, A. Santoso, A. Taschetto, F. Wang, X. Zhang, R. Holmes, J.-J. Luo, N. Maher, C. Martinez-Villalobos, R. Naha, S. Stevenson, A. Sullivan, P. van Rensch, T. Xu, G. Meehl, and N. Schneider: Mechanisms of Tropical Pacific Decadal Variability. Nature Reviews Earth & Environment, 4, 754–769 (2023). Article link readcube
  • N. C. Johnson, D. J. Amaya, Q. Ding, Y. Kosaka, H. Tokinaga and S.-P. Xie: Multidecadal modulations of key metrics of global climate change. Global and Planetary Change, 188, 103149 (2020). Article link
  • J. S. Chowdary, K. Hu, G. Srinivas, Y. Kosaka, L. Wang, and K. Koteswara Rao: The Eurasian Jet Streams as Conduits for East Asian Monsoon Variability. Current Climate Change Reports, 5, 233–244 (2019). Article link
  • S.-P. Xie, Y. Kosaka: What caused the global surface warming hiatus of 1998-2013? Current Climate Change Reports, 3, 128-140 (2017). Article link readcube
  • S.-P. Xie, Y. Kosaka, Y. Du, K. Hu, J. Chowdary and G. Huang: Indo-western Pacific ocean capacitor and coherent climate anomalies in post-ENSO summer: A review. Adv. Atmos. Sci., 33, 411-432 (2016). Article link
  • Y. Kosaka, S.-P. Xie: Tropical Pacific influence on the recent hiatus in surface global warming. US CLIVAR Variations, 13, 10-15 (2015). Web Site
  • Y. Kosaka, H. Nakamura: The Pacific-Japan pattern: A meridional teleconnection over the summertime western North Pacific, CLIVAR Exchanges, 54, 22-25 (2010). Web Site

IPCC報告書

  • Arias, P. A., N. Bellouin, E. Coppola, R. G. Jones, G. Krinner, J. Marotzke, V. Naik, M. D. Palmer, G-K. Plattner, J. Rogelj, M. Rojas, J. Sillmann, T. Storelvmo, P. W. Thorne, B. Trewin, K. Achuta Rao, B. Adhikary, R. P. Allan, K. Armour, G. Bala, R. Barimalala, S. Berger, J. G. Canadell, C. Cassou, A. Cherchi, W. Collins, W. D. Collins, S. L. Connors, S. Corti, F. Cruz, F. J. Dentener, C. Dereczynski, A. Di Luca, A. Diongue Niang, F. J. Doblas-Reyes, A. Dosio, H. Douville, F. Engelbrecht, V. Eyring, E. Fischer, P. Forster, B. Fox-Kemper, J. S. Fuglestvedt, J. C. Fyfe, N. P. Gillett, L. Goldfarb, I. Gorodetskaya, J. M. Gutierrez, R. Hamdi, E. Hawkins, H. T. Hewitt, P. Hope, A. S. Islam, C. Jones, D. S. Kaufman, R. E. Kopp, Y. Kosaka, J. Kossin, S. Krakovska, J-Y. Lee, J. Li, T. Mauritsen, T. K. Maycock, M. Meinshausen, S-K. Min, P. M. S. Monteiro, T. Ngo-Duc, F. Otto, I. Pinto, A. Pirani, K. Raghavan, R. Ranasinghe, A. C. Ruane, L. Ruiz, J-B. Sallée, B. H. Samset, S. Sathyendranath, S. I. Seneviratne, A. A. Sörensson, S. Szopa, I. Takayabu, A-M. Treguier, B. van den Hurk, R. Vautard, K. von Schuckmann, S. Zaehle, X. Zhang, K. Zickfeld, 2021: Technical Summary. In: Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change [Masson-Delmotte, V., P. Zhai, A. Pirani, S. L. Connors, C. Péan, S. Berger, N. Caud, Y. Chen, L. Goldfarb, M. I. Gomis, M. Huang, K. Leitzell, E. Lonnoy, J.B.R. Matthews, T. K. Maycock, T. Waterfield, O. Yelekçi, R. Yu and B. Zhou (eds.)]. Cambridge University Press. In Press. [link]
  • Eyring, V., N. P. Gillett, K. M. Achuta Rao, R. Barimalala, M. Barreiro Parrillo, N. Bellouin, C. Cassou, P. J. Durack, Y. Kosaka, S. McGregor, S. Min, O. Morgenstern, Y. Sun, 2021: Human Influence on the Climate System. In: Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change [Masson-Delmotte, V., P. Zhai, A. Pirani, S. L. Connors, C. Péan, S. Berger, N. Caud, Y. Chen, L. Goldfarb, M. I. Gomis, M. Huang, K. Leitzell, E. Lonnoy, J. B. R. Matthews, T. K. Maycock, T. Waterfield, O. Yelekçi, R. Yu and B. Zhou (eds.)]. Cambridge University Press. In Press. [link]
  • IPCC, 2021: Annex IV: Modes of Variability [Cassou, C., A. Cherchi, Y. Kosaka (eds.)]. In: Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change [Masson-Delmotte, V., P. Zhai, A. Pirani, S. L. Connors, C. Péan, S. Berger, N. Caud, Y. Chen, L. Goldfarb, M. I. Gomis, M. Huang, K. Leitzell, E. Lonnoy, J.B.R. Matthews, T. K. Maycock, T. Waterfield, O. Yelekçi, R. Yu and B. Zhou (eds.)]. Cambridge University Press. In Press. [link]

解説

  • 小坂 優: テレコネクションが形作る大規模な気候の共変動, Japan Geoscience Letters, Vol. 18, No. 4, 1-3 (2022). Article link
  • 小坂 優: 気候変動のメカニズム 人為起源影響と自然変動. グリーン・エージ，2022年6・7月合併号, 5-8.
  • 小坂 優: 地球規模の気候の変化に対する人類の影響, 学術の動向, 2022年1月号, p66-69.
  • 小坂 優: 気候変動への人為的影響, グローバルネット, 373号 (2021年12月), p6-8. (地球・人間環境フォーラム)
  • 小坂 優, 松本 淳，高橋 洋, 安田珠幾, 米山邦夫, 中村 尚, 磯部篤彦, 立花義裕, 早坂忠裕, 川村隆一, 野中正見, 川合義美, 見延庄士郎, 三寺史夫, 吉田 聡, 猪上 淳: 2017年度気象学会春季大会シンポジウム「最新の気象学が描き出す多彩な大気海洋結合現象」の報告, 天気, 66, 17-50 (2019).
  • Y. Kosaka: Slow warming and the ocean seesaw. Nature Geoscience, 11, 12-13 (2018). Article link readcube
  • 安田珠幾・安藤健太郎・細田滋毅・小坂 優 (取材協力): エルニーニョが異常気象を引き起こすしくみとは? ニュートン、36 (12), 134-139 (2016).
  • 川村隆一, 大塚成徳, 吉田 聡, 柳瀬 亘, 森 正人, 小坂 優, 竹村和人, 榎本 剛, 研究集会「急発達する低気圧の実態・予測・災害軽減に関する研究集会」の報告, 天気, 62, 533-538 (2015).
  • 前田修平, 林 未知也, 今田由紀子, Swadhin Behera, Takeshi Doi, 安田珠幾, 釜江陽一, 塩竈秀夫, 渡部雅浩, 木本昌秀, 石井正好, 植田宏昭, 小坂 優, 藤井陽介, 豊田隆寛, 植木巌, 研究会「長期予報と大気大循環」の報告　ENSOとその影響　我々はどこまで理解し，予測できているのか？, 天気, 62, 225-228 (2015).
  • Y. Kosaka: Increasing wind sinks heat, Nature Clim. Change, 4, 172-173 (2014). Article link readcube
  • 小坂 優, シルクロードパターン再考 -2010年度日本気象学会山本・正野論文賞受賞記念講演-, 天気, 58, 519-531 (2011). Article link
  • 時長宏樹, 小坂 優, 謝 尚平, インド洋ダイポールモードと海盆モード, 天気, 58, 231-233 (2011). Article link

書籍

  • 小坂 優: 工業化以降現在までの気候変化.「気候変動と社会」, 東京大学 気候と社会連携研究機構 編, 東京大学出版会 (2024). Publisher link
  • 小坂 優: 熱帯から北極域への影響. 「北極域の研究 その現状と将来構想」, 北極環境研究コンソーシアム長期構想編集委員会 編, 海文堂出版, 124-126 (2024). ISBN: 978-4-303-56230-4.
  • Y. Kosaka: Coupling of the Indian, western North Pacific, and East Asian summer monsoons. In “Indian Summer Monsoon: El Niño-Teleconnections and Beyond”. J. S. Chowdary, A. Parekh, and C. Gnanaseelan Eds., Elsevier, 263-285 (2021). ISBN: 978-0-12-822402-1. doi: 10.1016/B978-0-12-822402-1.00002-8. Publisher link
  • Y. Kosaka, Y. Takaya and Y. Kamae: The Indo-western Pacific Ocean capacitor effect. In “Tropical and Extra-tropical Air-Sea Interactions”, Swadhin Behera Eds., Elsevier, 141-169 (2020). ISBN: 978-0-12-818156-0
  • N. Keenlyside, Y. Kosaka, N. Vigaud, A. W. Robertson, Y. Wang, D. Dommenget, J.-J. Luo, and D. Matei: Basin Interactions and Predictability. Chap. 8, “Interacting Climates of Ocean Basins”, Carlos R. Mechoso Eds., Cambridge University Press, 258-292 (2020). ISBN: 978-1-108-49270-6
  • S.-P. Xie, Y. Kosaka: Interannual variability and predictability of summer climate over the Northwest Pacific and East Asia. Chap. 26, “Dynamics and Predictability of Large Scale, High-Impact Weather and Climate Events”, J. Li, R. Swinbank, R. Grotjahn and H. Volkert Eds., Cambridge University Press, 333-342 (2016).
  • 小坂 優, 近本喜光, 尾形友道, 謝 尚平, “ENSOと熱帯大気海洋系変動”, 気象研究ノート, 228, 「エルニーニョ・南方振動(ENSO)研究の現在」, 日本気象学会, 97-113 (2013).
  • 小坂 優, 謝 尚平, “2010 年夏の東アジアにおける異常気象と遠隔影響パターン”, 気象研究ノート, 225,「2010年夏 日本の猛暑」, 日本気象学会, 87-98 (2012).
  • H. Nakamura, T. Miyasaka, Y. Kosaka, K. Takaya, M. Honda: Northern Hemisphere extratropical tropospheric planetary waves and their low-frequency variability: Their vertical structure and interaction with transient eddies and surface thermal contrasts. Chap. 6, “Climate Dynamics: Why Does Climate Vary?”, D. Sun and F. Bryan Eds., Geophys. Monogr., AGU, 189, 149-179 (2010).