In Galapagos Islands


In Alaska

Kazuyuki Miyazaki, Ph.D.


Affiliation:
Atmospheric Composition Research Program
Frontier Research Center for Global Change
Japan Agency for Marine-Earth Science and Technology

Tel: +81-45-778-5716
Fax: +81-45-778-5496

Membership:
American Meteorological Society
Meteorological Society of Japan

e-mail:
kmiyazaki (at) jamstec.go.jp

Experience and Education

  • 2004-2006: JSPS Research Fellow (DC1)

  • 2006: Ph. D. Geophysics, Graduate School of Science, Tohoku University, Japan

  • 2006-: Postdoctoral scientist, Frontier Research Center for Global Change, Japan Agency for Marine-Earth Science and Technology
Research Interests

  • Transport and mixing in the troposphere and stratospheree

  • Chemical constituent data assimilation

  • Chemical transport modeling

  • Carbon cycle
Publications (Paper for Journals)

  1. Tanaka, D., T. Iwasaki, S. Uno, M. Ujiie and K. Miyazaki, Eliassen-Palm flux diagnosis based on isentropic representation, J. Atmos. Sci., 61 2370-2383, 2004. (AMS JAS) Abstract

  2. Miyazaki, K. and T. Iwasaki, Diagnosis of meridional ozone transport based on mass weighted isentropic zonal means, J. Atmos. Sci., 62, 1192-1208, 2005. (AMS JAS) Abstract

  3. Miyazaki, K., T. Iwasaki, K. Shibata and M. Deushi, Roles of transport in the seasonal variation of the total ozone amount, J. Geophys. Res., 110, D18309, 1029/2005JD005900, 2005. (AGU JGR) Abstract

  4. Miyazaki, K., T. Iwasaki, K. Shibata, M. Deushi and T. Sekiyama, The impact of changing meteorological variables to be assimilated into GCM on ozone simulation with MRI CTM, J. Meteor. Soc. Japan, 83, 909-918, 2005. (JMSJ) Abstract

  5. Miyazaki, K., and T. Iwasaki, The gradient genesis of stratospheric trace species in the subtropics and around the polar vortex, J. Atmos. Sci., 65, 490-508, 2008. (AMS JAS

  6. Miyazaki, K., P. K. Patra, M. Takigawa, T. Iwasaki, and T. Nakazawa, Global-scale transport of carbon dioxide in the troposphere, J. Geophys. Res., 113, D15301, doi:10.1029/2007JD009557, 2008 (AGU JGR)

  7. Iwasaki, T., and K. Miyazaki, Global Transport of Atmospheric Ozone. Japanese Journal of Multiphase Flow, 22(1), 36-41, 2008.

  8. Tomikawa, Y., K. Sato, S. Watanabe, Y. Kawatani, K. Miyazaki, M. Takahashi, Wintertime Temperature Maximum at the Subtropical Stratopause in a T213L256 GCM, J. Geophys. Res., 113, D17117, doi:10.1029/2008JD009786, 2008. (AGU JGR)

  9. Watanabe, S., Y. Kawatani, Y. Tomikawa, K. Miyazaki, M. Takahashi, K. Sato, General Aspects of a T213L256 Middle Atmosphere General Circulation Model, J. Geophys. Res., 113, D12110, doi:10.1029/2008JD010026, 2008. (AGU JGR)

  10. Miyazaki, K., and T. Iwasaki, On the analysis of mean downward velocities around the Antarctic polar vortex, J. Atmos. Sci., 65, 3989-4003, 2008. (AMS JAS)

  11. Miyazaki, K., T. Machida, P. K. Patra, Y. Sawa, H. Matsueda, T. Iwasaki, and T. Nakazawa, Formation mechanisms of latitudinal CO2 gradient in the upper troposphere over the subtropics and tropics, J. Geophys. Res., 114, D03306, doi:10.1029/2008JD010545, 2009. (AGU JGR)

  12. Miyazaki, K., and T. Iwasaki, Isentropic diffusion coefficient derived from chemical constituent data, SOLA, Vol. 5, 009-012, doi:10.2151/sola.2009-003. (MSJ SOLA)

  13. Patra, P. K., M. Takigawa, G. S. Dutton, K. Uhse, K. Ishijima, B. R. Lintner, K. Miyazaki, and J.W. Elkins, Transport mechanisms for synoptic, seasonal and interannual SF6 variations and "age" of air in troposphere, Atmospheric Chemistry and Physics, 9, 1209-1225, 2009. (ACP)

  14. Watanabe, S., Y. Kawatani, Y. Tomikawa, K. Miyazaki, M. Takahashi, K. Sato, The Eastward 4-day Wave in the Antarctic Winter Mesosphere Simulated by a Gravity Wave Resolving General Circulation Mode, J. Geophys. Res., 114, D16111, doi:10.1029/2008JD011636, 2009. (ACP)

  15. Sato, K., S. Watanabe, Y. Kawatani, Y. Tomikawa, K. Miyazaki, and M. Takahashi, On the origins of mesospheric gravity waves, Geophys. Res. Lett., 36, L19801, doi:10.1029/2009GL039908. (AGU GRL)

  16. Miyazaki, K., Performance of a local ensemble transform Kalman filter for the analysis of atmospheric circulation and distribution of long-live tracers under idealized conditions, J. Geophys. Res., 114, D19304, doi:10.1029/2009JD011892, 2009. (AGU JGR)

  17. Miyazaki, K., S. Watanabe, Y. Kawatani, Y. Tomikawa, M. Takahashi, and K. Sato, Transport and mixing in the extratropical tropopause region in a high vertical resolution GCM. Part I: Potential vorticity and heat budget analysis, J. Atmos. Sci., in press. (Manuscript PDF file)

  18. Miyazaki, K., K. Sato, S. Watanabe, Y. Tomikawa, Y. Kawatani, and M. Takahashi, Transport and mixing in the extratropical tropopause region in a high vertical resolution GCM. Part II: Relative importance of large-scale and small-scale dynamics. (Manuscript PDF file).

  19. Iwasaki, T., H. Hamada, and K. Miyazaki, Comparisons of Brewer-Dobson Circulations diagnosed from Reanalysis, J. Meteor. Soc. Japan, in press.

Publications (Proceedings)

  1. Iwasaki, T. and K. Miyazaki, Diagnosis of meridional ozone transport based on isentropic zonal mean -Part I: Definitions of zonal mean and eddy ozone fluxes. Proceedings Quadrennial Ozone Symposium, p761-762, 2004.

  2. Miyazaki, K., and T. Iwasaki, Diagnosis of meridional ozone transport based on isentropic zonal mean -Part II: Seasonal cycle. Proceedings Quadrennial Ozone Symposium, p776-777, 2004.

  3. Miyazaki, K., and T. Iwasaki, Diagnosis of meridional ozone transport based on mass weighted isentropic zonal means, Extended Abstract AMS 13th Conference on Middle Atmosphere, Cambridge, Massachusetts. (PDF)

  4. Miyazaki, K., and K. Sudo, Development of a Chemical Data Assimilation System Using a Local Ensemble Transformed Kalman Filter. Extended abstract of Third WCRP International Conference on Reanalysis, 2008.

  5. Iwasaki, T., H. Hamada, and K. Miyazaki, Comparisons of Brewer-Dobson Circulations. Extended abstract of Third WCRP International Conference on Reanalysis, 2008.
Oral and Poster Presentations

  1. Miyazaki, K., T. Iwasaki, M. Chiba, K. Shibata, T. Sekiyama and K. Orito, Sensitivity of stratospheric ozone to mean circulation an ozone reanalysis system based on a CTM, International Union of Geodesy and Geophysics, Sapporo, Japan, July 2003.

  2. Miyazaki, K., T. Iwasaki, K. Shibata, M. Chiba, T. Sekiyama and K. Orito, Sensitivity of stratospheric ozone to mean circulation in the MRI/JMA ozone reanalysis system, International Conference on Earth System Modelling. Hamburg, Germany, September 2003.

  3. Iwasaki, T., K. Miyazaki, S. Uno and M. Ujiie, Lagrangian mean meridional circulation based on the mass weighted isentropic zonal means, International Conference on Earth System Modelling. Hamburg, Germany, September 2003.

  4. Miyazaki, K. and T. Iwasaki, Diagnosis of meridional ozone transport based on mass weighted isentropic zonal means, International Review Meeting on the Northern Environmental Change Research Project, Sendai, Japan. March 2004.

  5. Iwasaki, T. and K. Miyazaki, Diagnosis of meridional ozone transport based on isentropic zonal mean -Part II: Definitions of zonal mean and eddy ozone fluxes, Quadrennial Ozone Symposium 2004, Kos, Greece. June 2004.

  6. Miyazaki, K. and T. Iwasaki, Diagnosis of meridional ozone transport based on isentropic zonal mean -Part II: Seasonal cycle, Quadrennial Ozone Symposium 2004, Kos, Greece. June 2004.

  7. Miyazaki, K. and T. Iwasaki, Diagnosis of meridional ozone transport based on mass weighted isentropic zonal means, 3rd SPARC General Assembly, Victoria, Canada, August 2004.

  8. Miyazaki, K. and T. Iwasaki, Seasonal variation of the meridional ozone transport in the troposphere and stratosphere based on isentropic representation, 5th International Workshop on Global Change: Connection to the Arctic (GCCA5), Tsukuba, Japan, November 2004.

  9. Kazuyuki Miyazaki, Toshiki Iwasaki, Diagnosis of meridional ozone transport based on mass weighted isentropic zonal means, 2005/6/13-17, AMS 13th Conference on Middle Atmosphere, Cambridge, Massachusetts.

  10. Kazuyuki Miyazaki, Toshiki Iwasaki, Kiyotaka Shibata, Makoto Deushi, The roles of transports in seasonal variation of total ozone amount, 2005/6/13-17, AMS 13th Conference on Middle Atmosphere, Cambridge, Massachusetts.

  11. Kazuyuki Miyazaki, Toshiki Iwasaki, Kiyotaka Shibata, Makoto Deushi, T. Sekiyama, Choosing meteorological variables to be assimilated into CTM driven by GCM for ozone reanalysis, 2005/6/13-17, AMS 13th Conference on Middle Atmosphere, Cambridge, Massachusetts.

  12. Kazuyuki Miyazaki, Toshiki Iwasaki, Diagnosis of meridional ozone transport based on mass weighted isentropic zonal means, 2005/7/18-29, The IAGA Scientific Assembly, Toulouse, France.

  13. Kazuyuki Miyazaki, Toshiki Iwasaki, Kiyotaka Shibata, Makoto Deushi, The roles of transports in seasonal variation of total ozone amount, The IAGA Scientific Assembly, Toulouse, France.

  14. Kazuyuki Miyazaki, Toshiki Iwasaki, Kiyotaka Shibata, Makoto Deushi, T. Sekiyama, T. Sasaki, Diagnosis of mean-meridional circulation and meridional constituent transport based on mass weighted isentropic zonal means, 2005/9/12-15, Third Stratospheric Processes And their Role in Climate (SPARC) Data Assimilation (SPARC-DA3) Workshop, Banff, Canada.

  15. Miyazaki, K., T. Iwasaki, K. Shibata, M, Deushi, T. Sekiyama, H. Akiyoshi, M. Takigama, Diagnostic tool for meridional constituent transport based on mass-weighted isentropic zonal means: Intercomparison of MRI and NIES chemical transport models, 2005/10/17-19, CCMVal2005, Boulder, USA.

  16. Tomikawa, T., K. Sato, K. Miyazaki, T. Iwasaki, and K. Shibata, Modified Lagrangian-mean analysis of the polar vortex evolution, AGU Chapman Conference on Jets and Annular Structures in Geophysical Fluids, Savannah (USA), 2006.

  17. Iwasaki, T., H. Hamada, and K. Miyazaki, Intercomaparison of reanalyses, JRA25, NCEP/NCAR and ERA40 with emphasis on their application to driving CTM, SPARC data assimilation workshop, Noordwijk, Netherlands, October 2006.

  18. Miyazaki, K., and T. Iwasaki, Formation and maintenance mechanisms of the constituent gradient in the lower stratosphere, An Earth System Science Partnership Global Environmental Change Open Science Conference, Beijing, China, November 2006.

  19. Iwasaki, T., H. Hamada, and K. Miyazaki, Intercomaparison of reanalyses, Intercomparison of mean-meridional circulations among reanalyses of JRA-25, NCEP/NCAR and ERA-40 with emphasis on their application to driving CTM, SPIE Asia-Pacific Remote Sensing, Goa, India, November 2006. (Invited)

  20. Miyazaki, K., and T. Iwasaki, The gradient genesis of the stratospheric trace species in the subtropics and around the polar vortex, European Geosciences Union General Assembly 2007, Vienna, Austria, April 2007.

  21. Miyazaki, K., and Patra, K. Prabir, M, Takigawa, and T, Nakazawa, Transport analysis of tropospheric carbon dioxide, European Geosciences Union General Assembly 2007, Vienna, Austria, April 2007.

  22. Miyazaki, K., and T. Iwasaki, The gradient genesis of the stratospheric trace species in the subtropics and around the polar vortex, AMS 14th Conference on Middle Atmosphere, Portland, Oregon, USA, August 2007.

  23. Tomikawa, Y., S. Watanabe, Y. Kawatani, K. Miyazaki, M. Takahashi ,and K. Sato, A Mechanism for the Wintertime Temperature Maxima at the Subtropical Stratopause in a T213L256 AGCM, Chapman Conference on The Role of the Stratosphere in Climate and Climate Change, Santorini, Greece, September 2007.

  24. Tomikawa, Y., S.Watanabe, Y.Kawatani, K.Miyazaki, M.Takahashi, and K. Sato (Invited) Wintertime Temperature Maximum at the Subtropical Stratopause in a T213L256 AGCM. International CAWSES Symposium, Kyoto, Japan, October, 23-27, 2007

  25. Miyazaki, K., and K. Sudo, Development of a chemical data assimilation system using a local ensemble transformed Kalman filter, Third WCRP International Conference on Reanalysis, Tokyo, Japan, January 2008.

  26. Iwasaki, T., H, Hamada, and K. Miyazaki, Comparisons of Brewer-Dobson Circulations, Third WCRP International Conference on Reanalysis, Tokyo, Japan, January 2008.

  27. Miyazaki, K., and T. Iwasaki, Global transport and life cycle of ozone in the stratosphere, SMILES International Workshop 2008, Kyoto, Japan, March 2008.

  28. Sato K., , S. Watanabe, Y. Kawatani, Y. Tomikawa, K. Miyazaki, and M. Takahashi, A Study of the Middle Atmosphere Dynamics Using a Gravity-Wave Resolving GCM Simulation. Asia Oceania Geosciences Society Conference 2008 in Busan, Korea, 16-20 June, 2008.

  29. Miyazaki, K., and K. Sudo, Development of a chemistry-climate coupling data assimilation system using a local ensemble transformed Kalman filter, Quadrennial Ozone Symposium 2008, Tromso, Norway, June-July 2008.

  30. Miyazaki, K., and T. Iwasaki, Analysis of mean downward velocity around the Antarctic polar vortex, SPARC 4th General Assembly, Bologna, Italy, August-September 2008.

  31. Miyazaki, K., S. Watanabe, Y. Tomikawa, Y. Kawatani, M. Takahashi, K. Sato, Analysis of extratropical UTLS structure using a high vertical resolution GCM, SPARC 4th General Assembly, Bologna, Italy, August-September 2008.

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Awards

  • Best poster award, 5th International Workshop on Global Change: Connection to the Arctic (GCCA5), 2004.
  • FRCGC Award for Outstanding Research Accomplishments, 2009.
  • Young Scientist Award from Japan Society of Atmospheric Chemistry, 2009.
PhD Thesis

  • Diagnosis of meridional transport of ozone and related species using a global chemical transport model (abstract)





Last updateF2009/12/14



Research Institute for Global Change
Japan Agency for Marine-Earth Science and Technology