Community GSIV3.7 Online Tutorial | Case 7: 4D Hybrid EnVar Case > Results

GSI 4D HYBRID FOR ARW USING GLOBAL ENSEMBLE FORECAST

Results

The standard output file stdout contains the run diagnostics, such as convergence information, and observation distribution from the GSI run. Details of the standard output file are available in section 4.1 of the GSI User's Guide.

Information about the use of observations by the analysis, and the corresponding innovations are available from the fit files (named fort.2*). The fit files located in the run directory should agree with the following fit files for temperature (fit_t1); wind(fit_w1); moisture (fit_q1); surface pressure (fit_p1); and radiance (fit_rad1); and GPS (fort.212); and radar radial velocity(fort.209).

Convergence information is available in the file: fort.220

Visualizing the Analysis

Use the same method as the practical case 3 (ARW 3DVAR) to make plots of the analysis increments. This time, plots will be made for the 2nd level (kmax=1) and level 21 (kmax=20). Once done pdf files GSI_Analysis_increment_1.pdf and GSI_Analysis_increment_20.pdf will be genera ted in the run directory. Compare these images with the reference solution [level 2 ] and [level 21].