Research Interests

Atmospheric/Ocean Numerical Modeling

nonhydrostatic modeling, grid systems,

discretization schemes, boundary conditions, 

topographic representation

Computational Physics

moving boundaries, adaptive mesh refinement,

multi-phase flow modeling, parallel computing,

biological fluid modeling

Research Activities

My PhD work is to develop a new atmospheric numerical model for ultra-high resolution simulations at horizontal grid intervals of less than 100 meters. I particularly focused on the representation of topography in models, and proposed a new cut cell method based on a Cartesian coordinate system that allows accurate simulations over complex topography including steep slopes (Yamazaki and Satomura 2008; 2010). In addition, a new block-structured Cartesian mesh approach proposed by Yamazaki and Satomura (2012) enables computationally efficient Cartesian-grid simulations with both high near-ground resolution and reasonable conservation characteristics. These works made an important contribution to the field of next-generation atmospheric modeling by making simulations possible over highly-resolved complex topography in mountainous areas, where significant errors are observed near steep slopes in the models using conventional terrain-following coordinates.

Education

Ph.D., Earth and Planetary Sciences, Kyoto University, March 2012

M.S., Earth and Planetary Sciences, Kyoto University, March 2009

B.S., Science, Kyoto University, March 2007

Experience

Research Fellow for Young Scientist of Japan Society for the Promotion of Science, Graduate School of Science, Kyoto University, April 2009 - present

Research Assistant, Graduate School of Science, Kyoto University, November 2008 - March 2009

Teaching Assistant, Graduate School of Science, Kyoto University, June 2007 - February 2008

Awards and Fellowships

Takegoshi Award for Women Students, Graduate School of Science, Kyoto University, June 2011

Research Fellowships for Young Scientists, Japan Society for the Promotion of Science, April 2009 - March 2012

Publications in Refereed Journals

Yamazaki, H., and T. Satomura, 2012:

Non-hydrostatic atmospheric cut cell model on a block-structured mesh.

Atmos. Sci. Let., 13, 29-35, doi:10.1002/asl.358

Abstract: Click HERE

Yamazaki, H., and T. Satomura, 2010:

Nonhydrostatic atmospheric modeling using a combined Cartesian grid.

Mon. Wea. Rev., 138, 3932-3945, doi:10.1175/2010MWR3252.1

Abstract: Click HERE

Yamazaki, H., and T. Satomura, 2008:

Vertically combined shaved cell method in a z-coordinate nonhydrostatic atmospheric model.

Atmos. Sci. Let., 9, 171-175, doi:10.1002/asl.187

Abstract: Click HERE

Invited Talks and Seminars

Yamazaki, H.,

Cartesian coordinate atmospheric modeling for next-generation ultra-high resolution simulations,

ICAS External Seminar, Institute for Climate and Atmospheric Science, University of Leeds, UK, May 2011

Yamazaki, H.,

Ultra-high resolution atmospheric modeling using cut cells,

Cavendish Laboratory Seminar, Cavendish Laboratory, University of Cambridge, UK, March 2011

Yamazaki, H., and T. Satomura,

Two-dimensional cut cell simulations of nonhydrostatic atmospheric flow over a wide-range of slope angles,

Cut Cell Methods for Atmosphere and Ocean Modeling 2010, Freie Universität Berlin, Germany, July 2010

Other Presentations (International Only)

Coming soon

2011

Yamazaki, H., and T. Satomura,

Development of utra-high resolution model using cut cells,

The 9th International SRNWP-Workshop on Nonhydrostatic Modelling, Bad Orb, Germany, May 2011

2010

Yamazaki, H., and T. Satomura,

Nonhydrostatic atmospheric modeling using a Cartesian terrain-intersecting grid,

First International Workshop on Nonhydrostatic Numerical Models, Kyoto, Japan, September 2010

2009

Yamazaki, H., and T. Satomura,

Nonhydrostatic atmospheric modeling using a combined Cartesian grid,

The 8th International SRNWP-Workshop on Nonhydrostatic Modelling, Bad Orb, Germany, October 2009

Yamazaki, H., and T. Satomura,

Development of ultra-high resolution atmospheric model,

MOCA-09, the IAMAS/IAPSO/IACS 2009 Joint Assembly, Montreal, Canada, July 2009

2008

Yamazaki, H., and T. Satomura,

Development of ultra-high resolution numerical model,

The 1st International Workshop on Prevention and Mitigation of Meteorological Disasters in Southeast Asia, Kyoto, Japan, March 2008

2007

Yamazaki, H., and T. Satomura,

Development of the z-coordinate high-resolution non-hydrostatic atmospheric model using the shaved cell method,

The 7th International SRNWP-Workshop on Nonhydrostatic Modelling, Bad Orb, Germany, November 2007