Science - Climate, Oceans and Solid Earth Science: People: Yi Chao

ROMS - Regional Ocean Modeling System Icon

ROMS - Regional Ocean Modeling System
The goal of the JPL ROMS group is to provide real-time and retrospective analysis of remote sensing data and ocean model simulations in the Pacific Ocean. We are particularly interested in the U.S. West Coastal Ocean with focused areas around Southern Cal

OurOcean
The JPL OurOcean Portal provides both real-time and retrospective analysis of remote sensing data and ocean model simulations in the Pacific Ocean.

Jet Propulsion Laboratory (1993-Present)

Principal Scientist (2004-present)
Aquarius Project Scientist (2003-present)
Manager, Climate, Oceans and Solid Earth Science Section (2007-2009)
Deputy Manager, Earth Remote Sensing Science Section (2006-2007)
Supervisor, Ocean-Atmosphere Interaction Group (2004-2006)
Research Scientist (1997-2004)
Scientist (1993-1996)

Adjunct Professor, Department of Atmospheric and Oceanic Sciences, UCLA (2005-present)
Post-doctoral Scholar, Department of Atmospheric Sciences, University of California at Los Angeles (1990-1992)
Research Assistant, NOAA Geophysical Fluid Dynamics Laboratory, Princeton University (1985-1990)

Exceptional Achievement Medal, NASA (2005)
Best Paper Award, Supercomputing Conference, San Jose, California (1997)
Lew Allen Award for Excellence, Jet Propulsion Laboratory, California Institute of Technology (1996)

Chao, Y. , Z. Li, J. Farrara, J. C. McWilliams, J. Bellingham, X. Capet, F. Chavez, J.-K. Choi, R. Davis, J. Doyle, D. Frantaoni, P. P. Li, P. Marchesiello, M. A. Moline, J. Paduan, S. Ramp, Development, implementation and evaluation of a data-assimilative ocean forecasting system off the central . Deep-Sea Research II, doi:10.1016/j.dsr2.2008.08.011, 2009.
Wang, X., Y. Chao, C. Dong, J. Farrara, Z. Li, J. C. McWilliams, J. D. Paduan, L. K. Rosenfeld, Modeling tides in Monterey Bay, California. Deep-Sea Research II, doi:10.1016/j.dsr2.2008.08.012, 2009.
Doyle, J. D., Q. Jiang, Y. Chao, J. Farrara, High-resolution real-time modeling of the marine atmospheric boundary layer in support of the AOSNII field campaign. Deep-Sea Research II, doi:10.1016/j.dsr2.2008.08.009, 2009.
Li, Z., Y. Chao, J.C. McWilliams, and K. Ide, A Three-Dimensional Variational Data Assimilation Scheme for the Regional Ocean Modeling System. Journal of Atmospheric and Oceanic Technology, 25, 2074-2090, 2009.
Chao, Yi, Zhijin Li, John D. Farrara, Mark A. Moline, Oscar M. E. Schofield, and Sharanya J. Majumdar. 2008. Synergistic applications of autonomous underwater vehicles and the regional ocean modeling system in coastal ocean forecasting. Limnol. Oceanogr. 53: 2251-2263.
Li, Z., Y. Chao, J. C. McWilliams, and K. Ide, A three-dimensional variational data assimilation scheme for the Regional Ocean Modeling System: Implementation and basic experiments, J. Geophys. Res. , 113, C05002, doi:10.1029/2006JC004042, 2008.
Polovina, J. J., F. Chai, E. A. Howell, D. R. Kobayashi, L. Shi, Yi Chao, Ecosystem dynamics at a productivity gradient: A study of the lower trophic dynamics around the northern atolls in the Hawaiian Archipelago, Progress in Oceanography 77, 217–224, 2008.
Pfeiffer-Hoyt, A. S., M.A. McManus, P.T. Raimondi, Y. Chao, and F. Chai, Dispersal of barnacle larvae along the central California coast: A modeling study. Limnol. Oceanogy., 52(4), 1559-1569, 2007.
Chai, F., M-S Jiang, Y. Chao, R.C. Dugdale, F. Chavez, and R.T. Barber, Modeling Responses of Diatom Productivity and Biogenic Silica Export to Iron Enrichment in the Equatorial Pacific Ocean. Global Biogeochemical Cycle, Vol. 21, GB3S90, doi:10.1029/2006GB002804, 2007.
Ryan, J.P., I. Ueki, Y. Chao, H. Zhang, P.S. Polito, and F.P. Chavez, Western Pacific Modulation of Large Phytoplankton Blooms in the Central and Eastern Equatorial Pacific, Journal of Geophysical Research-Biosciences, 111, G02013, doi:10.1029/2005JG000084, 2006.
Li, Z., Yi Chao, and J.C. McWilliams, Computation of the Streamfunction and Velocity Potential for Limited and Irregular Domains, Monthly Weather Review, 134, 3384-3394, 2006.
Wang, X., and Yi Chao, Simulated Sea Surface Salinity Variability in the Tropical Pacific, Geophysical Research Letters, 31, L02302, doi:10.1029/2003GL018146, 2004.
Song, Y.T., and Yi Chao, A theoretical study of topographic effects on coastal upwelling and cross-shore exchange, Ocean Modeling, 6, 151-176, 2003, 2004.
LeVine, D., C. Koblinsky, F. Pellerano, G. Lagerloef, Y. Chao, S. Yueh, W. Wilson, A sensor to measure salinity in the open ocean from space, International Journal of Remote Sensing, 25, 1313 – 1318, 2004.
Chao, Yi, Z. Li, J.C. Kindle, J.D. Paduan, and F.P. Chavez, A High-Resolution Surface Vector Wind Product for Coastal Oceans: Blending Satellite Scatterometer Measurements with Regional Mesoscale Atmospheric Model Simulations, Geophysical Research Letters, 30(1), 1013, doi:10.1029/2002GL015729, 2003.
Chai, F., M. Jiang, R.T. Barber, R.C. Dugdale, and Yi Chao, Interdecadal Variation of the Transition Zone Chlorophyll Front: A Physical-Biological Model Simulation between 1960 and 1990, Journal of Oceanography, 59, 461-475, 2003.
Chao, Yi, and M.S. Lozier, Evaluation of North Atlantic property field simulations at 1/6o, Journal of Physical Oceanography, 31, 3200-3213, 2001.
Chao, Yi, M. Ghil, and J.C. McWilliams, Pacific Interdecadal Variability in this century's sea Surface Temperature, Geophysical Research Letters, 27, 2261-2264, 2000.
Chao, Yi, A. Gangopadhyay, F.O. Bryan, W.R. Holland, Modeling the Gulf Stream system: How far from reality? Geophysical Research Letters, 23, 3155-3158, 1996.
Chao, Yi, and L.-L. Fu, A comparison between the TOPEX/POSEIDON data and a global ocean general circulation model during 1992-93, Journal of Geophysical Research (Oceans) , 101, 14965-24976, 1995.
Chao, Yi, D. Halpern, and C. Perigaud, Sea surface height variabilities in the tropical Pacific Ocean, Journal of Geophysical Research (Oceans) , 98, 6947-6959, 1993.
Chao, Yi, and S.G.H. Philander, On the structure of the Southern Oscillation, Journal of Climate, 6, 450-469, 1993.