Optimal determination of nudging coefficients using the adjoint equations

D. R. Stauffer, Bao Jian-Wen Bao

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Abstract

In this study, a general computational procedure is developed to determine the size and distribution of any internal model parameter. The procedure is then applied to a one-dimensional shallow-water model in the context of analysis-nudging four-dimensional data assimilation (FDDA): the weighting coefficients used by the Newtonian nudging technique are determined such that the model error during the assimilation period is optimally reduced subject to some constraints. The sensitivity of these nudging coefficients to the optimal objectives and constraints is investigated using this simple grid-point model in an Observing Systems Simulation Experiments (OSSE) mode. -from Authors

Original languageEnglish (US)
Pages (from-to)358-369
Number of pages12
JournalTellus, Series A
Volume45 A
Issue number5
StatePublished - Jan 1 1993

All Science Journal Classification (ASJC) codes

  • Oceanography
  • Atmospheric Science

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    Stauffer, D. R., & Jian-Wen Bao, B. (1993). Optimal determination of nudging coefficients using the adjoint equations. Tellus, Series A, 45 A(5), 358-369.