2005 - Ph.D. (Meteorology), University of Hawaii Dissertation:
Ocean-atmosphere interaction in the seasonal to decadal variations of
tropical Atlantic climate
2000 - M.S. (Atmosphere-Ocean Science), Hokkaido University,
Sapporo, Japan
1998 - B.A. (Geophysics), Hokkaido University, Sapporo, Japan
Research Interests
Climate dynamics
Large-scale ocean-atmosphere interaction
Climate change and variability
Tropical meteorology
Scientific Work Experience
Postdoctoral Fellow, International Pacific Research Center,
University of Hawaii, Honolulu, Hawaii, January 2006 – July 2006
Graduate Research Assistant, Department of Meteorology, University
of Hawaii, Honolulu, Hawaii, January 2000 – December 2005
Journal Reviews
Journal of Climate, Geophysical Research Letters, Journal of the
Meteorological Society of Japan, AGU Monograph (vol. 147)
Selected Publications
Okumura, Y., S.-P. Xie, and A. Timmermann: Improving
prediction of northeast Brazil rainfall anomalies. Geophys. Res. Lett.,
in preparation.
Okumura, Y., and S.-P. Xie: Some overlooked features of tropical
Atlantic climate leading to a new Nino-like phenomenon. J. Climate,
in press.
Okumura, Y., and S.-P. Xie, 2004: Interaction of the Atlantic
equatorial cold tongue and the African monsoon. J. Climate, 17,
3589 – 3602.
Okumura, Y., S.-P. Xie, A. Numaguti, and Y. Tanimoto, 2001:
Tropical Atlantic air-sea interaction and its influence on the NAO.
Geophys. Res. Lett., 28, 1507 – 1510.