EnKF集合卡尔曼滤波代码.zip_EnKF_utr_扰动观测_集合卡尔曼_集合滤波

These files illustrate the model used for storing, reading and writing the ensemble of model states. It assumes that each member of the ensemble is stored as a record in a direct unformatted Fortran90 file, in single precision. Note that if you using the square root scheme with the random rotation of anomalies AND the local analysis, you have to make sure you use the same rotation for each grid point. You may then compute the random matrix outside the analysis routine, and pass the same matrix in each local call. Analysis routines: analysis.F90: Routine updated 02/02/2007 including options for perturbed observations or symmetric square root schemes analysis2_EnOI.F90: Ensemble OI version of the perturbed observations analysis Comments and bug reports to Geir.Evensen@hydro.com and Laurent.Bertino@nersc.no