This material is based on work supported by NSF Grants OCE-0121176, 0121315, 0121332, 0121506, and 0121542; ONR Grants N00014010209, N000140410439, N00014050277, N000140510365, and N000140510366; and NASA Grant NNH04ZYS008N.
Journal of Atmospheric & Oceanic Technology
Inverse problems (Differential equations), Oceanography -- Mathematical models, Tides, Ocean currents
The Inverse Ocean Modeling (IOM) System is a modular system for constructing and running weak-constraint four-dimensional variational data assimilation (W4DVAR) for any linear or nonlinear functionally smooth dynamical model and observing array. The IOM has been applied to four ocean models with widely varying characteristics. The Primitive Equations Z-coordinate-Harmonic Analysis of Tides (PEZ-HAT) and the Regional Ocean Modeling System (ROMS) are three-dimensional, primitive equations models while the Advanced Circulation model in 2D (ADCIRC-2D) and Spectral Element Ocean Model in 2D (SEOM-2D) are shallow-water models belonging to the general finite-element family. These models, in conjunction with the IOM, have been used to investigate a wide variety of scientific phenomena including tidal, mesoscale, and wind-driven circulation. In all cases, the assimilation of data using the IOM provides a better estimate of the ocean state than the model alone.
Muccino, J. C., Arango, H. G., Bennett, A. F., Chua, B. S., Cornuelle, B. D., Di Lorenzo, E. E., & ... Zaron, E. D. (2008). The Inverse Ocean Modeling System. Part II: Applications. Journal Of Atmospheric & Oceanic Technology, 25(9), 1623-1637.