Taka Ito - Assistant Professor

Phone: 970-491-8206 Fax: 970-491-8449 Email: ito (at) atmos.colostate.edu CV

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Research Interests

My research is aimed at understanding the role of the oceans in the global climate and biogeochemical cycles.

• Physical and Chemical Oceanography
• Ocean Carbon Cycle
• Conceptual and Numerical Modeling of Ocean and Climate

Teaching Interest

• AT610: Physical Oceanography
• AT680: Geophysical Fluid Dynamics Lab
• AT770: Ocean Modeling

Research sponsor

• NSF
• NASA

Papers in review / to appear

• Ito, T. and J. Marshall, (2007), "Control of lower limb circulation in the Southern Ocean by diapycnal mixing and mesoscale eddy transfer", submitted to Journal of Physical Oceanography, (PDF)

Publications in Print

The Southern Ocean circulation and the carbon cycle

• Ito, T., P. Parekh, S. Dutkiewicz and M. J. Follows (2005), "The Antarctic Circumpolar Productivity Belt." Geophysical Research Letters, 32. (PDF)
• Ito, T. (2005), "The biogeochemistry and residual mean circulation of the Southern Ocean." Ph.D. Thesis, Massachusetts Institute of Technology. (PDF)
• Ito, T., M. J. Follows and J. C. Marchall (2004), "What controls the uptake of transient tracers in the Southern Ocean?" Global Biogeochemical Cycles, 18(2). (PDF)

Noble gases as tracers of ocean mixing

• Ito, T., C. Deutsch, S. Emerson and R. Hamme (2007), "The impact of diapycnal mixing on the observed argon distribution in the subtropical North Pacific.", Geophysical Research Letters, 34, L09602, doi:10.1029/2006GL029209. (PDF)
• Ito, T. and C. Deutsch (2006), Understanding the saturation state of argon in the thermocline: The role of air-sea gas exchange or diapycnal mixing." Global Biogeochemical Cycles, 20, GB3019, dio:10.1029/2005GB002655. (PDF)

Theory of oceanic carbon pumps

• Follows, M. J., T. Ito and S. Dutkiewicz (2006), "Solving the carbonate chemistry system in ocean biochemistry models." Ocean Modeling, 12(3-4), 290-301. (PDF)
• Ito, T. and M. J. Follows (2005), "Preformed phosphate, Soft tissue pump, and atmospheric CO2." Journal of Marine Research, 63, 813-139. (PDF)
• Ito, T., M. J. Follows and E. A. Boyle (2004), "Is AOU a good measure of respiration in the oceans?" Geophysical Research Letters, 31(7). (PDF)
• Ito, T. and M.J. Follows (2003), "Upper ocean control on the solubility pump of CO2." Journal of Marine Research, 61(4). (PDF)
• Follows, M. J., T. Ito and J. Marotzke (2002), "The ocean's subtropical gyres and atmospheric CO2." Global Biogeochemical Cycles, 16(4). (PDF)
• Follows, M. J. and T. Ito (2001), "Atmospheric CO2, the ventilated thermocline and ocean carbon cycle models." U.S. JGOFS News, 11(3), 3-4.

Coupled climate-carbon cycle interaction

• Parekh P., M. J. Follows, S. Dutkiewicz, and T. Ito (2006), "Physical and biological regulation of the soft tissue carbon pump." Paleoceanography, 21, PA3001, doi:10.1029/2005PA001258. (PDF)
• Parekh P., S. Dutkiewicz, M. J. Follows, and T. Ito (2006), "Atmospheric carbon dioxide in a less dusty world." Geophysical Research Letters, 33, L03610, doi:10.1029/2005GL025098. (PDF)
• Ito, T. (1999), "Feedback mechanisms in the oceanic carbon cycle." Master's thesis, Massachusetts Institute of Technology

Book chapter

• Ito, T. and A. Kleidon, (2004), "Entropy production of atmospheric heat transport in Non-Equilibrium Thermodynamics and the Production of Entropy: Life, Earth and Beyond." Kleidon, A. and R. D. Lorenz (editors.) Springer Verlag, Berlin, Heidelberg, Germany; pp. 93-106.