Presentation in international conferences

• Nishii, K., H. Nakamura, Y.J. Orsolini, "Persistent cooling of the polar stratosphere in 2011 winter and spring", Asian Conference on Meteorology, Kyoto, Japan, October 2015 (poster and oral)


• Nishii, K., H. Nakamura, T. Nakamura, "Atmospheric response to anomalous sea ice in the Sea of Okhotsk", 26th General Assembly of IUGG, Prague, Czech Republic, June, 2015 (oral)


• Nishii, K., H. Nakamura, Y.J. "Orsolini,Persistent cooling of the polar stratosphere in 2011 winter and spring", 26th General Assembly of IUGG, Prague, Czech Republic, June, 2015 (poster)


• Nishii, K., H. Nakamura, Y.J. Orsolini, "Persistent cooling of the polar stratosphere in 2011 winter and spring", ISAR-4, Toyama, Japan, April, 2015 (poster)


• Nishii, K., H. Nakamura, T. Nakamura, "Atmospheric response to anomalous sea ice in the Sea of Okhotsk", ISAR-4, Toyama, Japan, April, 2015 (poster)


• Nishii, K., H. Nakamura, F. Ogawa, N-E. Omrani, N. Keenlyside, "Role of the midlatitude oceanic frontal zone in the Southern Hemisphere climate change due to the stratospheric ozone depletion in climate model simulations", AOGS, Sapporo, Japan, August, 2014 (poster)


• Nishii, K., H. Nakamura, F. Ogawa, "Role of the midlatitude oceanic frontal zone in the Southern Hemisphere climate change due to the stratospheric ozone depletion in climate model simulations", Ocean Science Meetings, Hawaii, United States, February, 2014 (poster)


• Nishii, K., H. Nakamura, Y. J. Orsolini, "Blockings and upward planetary-wave propagation into the stratosphere", SPARC 2014 General Assembly, Queenstown, New Zealand, January, 2014 (oral)


• Nishii, K., H. Nakamura, Y. J. Orsolini, "Projected changes in Arctic summer storm-track activity by CMIP3 climate models", DACA-13, Davos, Switzerland, July, 2013 (oral)


• Nishii, K., H. Nakamura, and K. Sato, "Precipitation bias in early summer and autumn over East Asia in CMIP5 models", 4th WGNE workshop on systematic errors in weather and climate models, Exeter, UK, April 2013 (poster)


• Nishii, K., and H. Nakamura, "Large-Scale East-Asian Rainbands in Early Summer and Autumn Simulated in CMIP5 Models", International Workshop on CMIP5 Model Intercomparisons for Future Projections of Precipitation and Climate in Asia, Ibaraki, Japan, March, 2013 (oral).


• Nishii, K., H. Nakamura, Y. J. Orsolini, "Projected changes in Arctic summer storm-track activity by CMIP3 climate models", ISAR-3, Tokyo, Japan, January, 2013 (oral:G1-09)


• Nishii, K., H. Nakamura, Y. J. Orsolini, "Geographical dependence observed in blocking high influence on the stratospheric variability through enhancement and suppression of upward planetary-wave propagation", An ICDM workshop 2012, Kunming, China, August, 2012 (oral:EGU2012-3862)


• Nishii, K., H. Nakamura, Y. J. Orsolini, "Stratospheric cooling and downward planetary-wave propagation in the lowermost stratosphere during the 2010-11 winter", EGU2012, Vinna, Austria, April, 2012 (poster:EGU2012-3857)


• Nishii, K., H. Nakamura, Y. J. Orsolini, "Geographical dependence observed in blocking high influence on the stratospheric variability through enhancement and suppression of upward planetary-wave propagation", EGU2012, Vinna, Austria, April, 2012 (oral:EGU2012-3862)


• Nishii, K., H. Nakamura, "Influence of SST front on baroclinic development of atmospheric low-frequency variability", JpGU Meeting 2013, Chiba, Japan, May, 2012.(oral; AAS03-04)


• Nishii, K., H. Nakamura, Y. J. Orsolini, "Geographical dependence observed in blocking high influence on the stratospheric variability through enhancement and suppression of upward planetary-wave propagation", Workshop on Stratospheric Sudden Warming and its Role in Weather and Climate Variations, Kyoto, Japan, February, 2012 (oral)


• Nishii, K., H. Nakamura, Y. J. Orsolini, "Cooling of the wintertime arctic stratosphere induced by the western pacific teleconnection pattern", IUGG2011, Melbourne, Australia, June, 2011.(oral; #2618)


• Nishii, K., H. Nakamura, Y. J. Orsolini, "Geographical dependence observed in blocking high influence on the stratospheric variability through enhancement and suppression of upward planetary-wave propagation", IUGG2011, Melbourne, Australia, July 2011.(oral; #2613)


• Nishii, K., H. Nakamura, Y. J. Orsolini, "REPRODUCIBILITY OF SUMMERTIME STORM-TRACK ACTIVITY OVER THE ARCTIC IN CMIP3 CLIMATE MODELS", ISAR-2, Totkyo, Japan, December, 2010.(poster; Poster Session G1-P1)


• Nishii, K., H. Nakamura, Y. J. Orsolini, "Reproducibility and Future Projection of Summertime Storm-Track Activity over The Arctic in CMIP3 Climate Models", IPY Oslo Science Conference, Oslo, Norway, June, 2010.(poster; Poster Session PS1 - Section A)


• Nishii, K., H. Nakamura, Y. J. Orsolini, "Influence of the Western Pacific pattern on the wintertime Arctic stratosphere", IPY Oslo Science Conference, Oslo, Norway, June, 2010. (oral; EA10.2-2)


• Nishii, K., T. Miyasaka, Y. Kosaka and H. Nakamura, "Reproducibility and future projection of the midwinter storm-track activity over the Far East in the CMIP3 climate models in relation to Haru-Ichiban", Fourth Japan-China-Korea Joint Conference on Meteorology, Tsukuba, Japan, November, 2009. (oral; S4-10)


• Nishii, K. and H. Nakamura, "Modulations of Planetary Wave field induced by Upward-Propagating Rossby Wave Packets Prior to a Stratospheric Sudden Warming Event", MOCA-09, Montreal, Canada, July, 2009. (oral; M06.34/21402)


• Nishii, K. and H. Nakamura, "Three-dimensional evolution of ensemble forecast spread before a stratospheric sudden warming event in January 2006", MOCA-09, Montreal, Canada, July, 2009. (oral; M01.40/22103)


• Nishii, K. and H. Nakamura, "Modulations of Planetary Waves by Upward-Propagating Rossby Wave Packets Prior to a Stratospheric Sudden Warming Event: Observations and Ensemble Forecasts", 4th SPARC-GA, Bologna, Italy, September, 2008. (poster; A-P78)


• Nishii, K. and H. Nakamura, "The Climatology and Interannual Variability of Upward and Downward Propagation of Rossby Wave Activity Propagation Across the Tropopause", Third WCRP International Conference on Reanalysis, Tokyo, Japan, January, 2008. (poster; P4-19)


• Nishii, K. and H. Nakamura, "Climatology and Interannual Variability of Upward and Downward Propagation of Rossby Wave Activity Across the Tropopause", Chapman Conference on The Role of the Stratosphere in Climate and Climate Change, Santorini, Greece, September, 2007. (poster PDF, 884K) (poster; N01)


• Nishii, K. and H. Nakamura, "The tropospheric origin of the major warming event over antarctica in September 2002", 3rd SPARC General Assembly, British Columbia, Canada, August, 2004. (poster; P-3-37)


• Nishii, K. and H. Nakamura, "On the tropospheric origins of upward propagating Rossby wave trains involved in the 2002 Southern Hemisphere major warming event", XXIII General Assembly of Intl. Union Geodesy Geophys., Sapporo, Japan, July, 2003. (oral; MC05/10A/A09-003)


• Nishii, K. and H. Nakamura, "Upward and downward Rossby wave propagation across the tropopause: A case study for the wintertime Southern Hemisphere", Intl. Symposium on Stratospheric Variations and Climate., Fukuoka, Japan, November, 2002. (poster; 1-18)