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Profile Page

Tetsu Hara
Professor of Oceanography
Watkins 218

Educational Background

Ph.D., Civil Engineering
M.S., Civil Engineering
B.S., Civil Engineering
Massachusetts Institute of Technology
University of Tokyo
University of Tokyo

Areas of Specialization


Tetsu Hara's current research interests include generation, evolution, and breaking of ocean surface waves, sea spray and bubbles, and mass, heat, energy, and momentum fluxes at the air-sea interface. He also researches the impact of air-sea fluxes on tropical cyclone predictions.


Tetsu Hara teaches undergraduate and graduate courses on geophysical fluid dynamicsm, air-sea interaction, and surface waves and storm surge modeling.


Suzuki, N., T. Hara, and P. P. Sullivan, 2013: Impact of Breaking Wave Form Drag on Near-Surface Turbulence and Drag Coefficient over Young Seas at High Winds. J. Phys. Oceanogr., J. Phys. Oceanogr., 43, 324–343.

Suzuki, N., T. Hara, and P. P. Sullivan, 2011: Turbulent airflow at young sea states with frequent wave breaking events: large eddy simulation. J. Atoms. Sci., 68, 1290-1305.

Fan, Y., I. Ginis, T. Hara, and I. J. Moon, 2010: Momentum Flux Budget Across Air-sea Interface under Uniform and Tropical Cyclone Winds. J. Phys. Oceanogr, 40, 2221–2242.

Fan, Y., I. Ginis, and T. Hara, 2009: The Effect of Wind-Wave-Current Interaction on Air-Sea Momentum Fluxes and Ocean Response in Tropical Cyclones. J. Phys. Oceanogr., 39, 1015–1030.

Fan, Y., I. Ginis, T. Hara, C. W. Wright, and E. J. Walsh, 2009: Numerical simulations and observations of surface wave fields under an extreme tropical cyclone. J. Phys. Oceanogr., 39, 2097–2116.



Hara, T., Wind turbulence over ocean waves and air-sea momentum flux. Workshop on Ocean Wave Dynamics, Thematic Program on the Mathematics of Oceans, Fields Institute, Toronto, 2013.

Reichl, B., T. Hara and I. Ginis, Sea State Dependence of Wind Stress and Drag Coefficient under High (Hurricane) Winds.  AMS 18th Conference on Air–Sea Interaction, 2012.

Mauzole, Y., A. Banari, C. Janssen, T. Hara, S. Grilli, and M. C. Krafczyk. Study of sea spray impact on air-sea momentum flux using a Lattice-Boltzmann method for fluid dynamics. AMS 18th Conference on Air–Sea Interaction, 2012.

Suzuki, N., T. Hara and P. P. Sullivan. Impact of Breaking Wave Form Drag on Near-Surface Turbulence and Drag Coefficient over Young Seas at High Winds. AMS 18th Conference on Air–Sea Interaction, 2012.

Hara, T. and I. Ginis, Coupled atmosphere-wave-ocean modeling under tropical cyclone (hurricane) conditions. 4th International Workshop on Modelling the Ocean, 2012, Yokohama, Japan.


Member for
7 years 2 weeks