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Filtering by: Committee Member Glenn, Michael D. Remove constraint Committee Member: Glenn, Michael D. Contributor Barth, Jack A. Remove constraint Contributor: Barth, Jack A.

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  • Ensemble-variational data assimilation for dynamically challenging coastal ocean circulation

    Creator:
    Pasmans, Ivo
    Abstract:
    Currently, forecasts produced by the Oregon-Washington (OR-WA) Coastal Ocean Forecast System are constrained by assimilation of only surface observations. The 4-dimensional variational (4DVAR) data assimilation (DA) algorithm is utilized to combine the model and the data, with the time-independent forecast ("background'') error covariance B. In this study, two possible improvements...
    Resource Type:
    Dissertation
    Full Text:
    two DA corrections using (a) the ensemble Kalman filter, (b) 3DVAR, (c) 3DVAR-FGAT, (d) 4DVAR