Variational methods in simultaneous optimum interpolation and initialization

摘要: The duality between optimum interpolation and variational objective analysis, is reviewed. This used to set up a approach analysis which uses prior information concerning the atmospheric spectral energy distribution, in problem. In wind example, field partitioned into divergent nondivergent parts, control parameter governing relative two parts estimated from observational data being analyzed by generalized cross validation, along with bandwidth parameter. A combining initialization single step proposed. simple example of this approach, data, forecast, distribution combined problem has (at least) one parameter, partitioning fast slow modes, weight be given forecast data.