1. Verify WRF Forecast using MET
Ruifang Li
MMM

2. METv1.1 Installation /ptmp/lir/wrf/METv1.1 (bluefire)
/users/lir/wrf/met/METv1.1-gnu (Linux)

3. MET Components

4. MET Tools used PB2NC Point-Stat VSDB-Analysic
The PB2NC tool is used to stratify the contents of an input PrepBufr point observation file and reformat it into NetCDF format for use by the Point-Stat tool
Point-Stat
The Point-Stat tool provides verification statistics for forecasts at observation points, as opposed to over gridded analyses.
VSDB-Analysic
The VSDB-Analysis tool ties together results from the Point-Stat and Grid-Stat tools by providing summary statistical information and a way to filter their VSDB output files.

5. Scripts Path /ptmp/lir/wrf_test/wrf_em/verification/nudge/scripts
I used some of the scripts which were wroten by our visitor Xiaqun Zhou. Thanks Xiaoqun

6. WRF Forcast and Obs Data
Obs Data (Prebufr Format)
/ptmp/liuz/t8_2008_45km/ob/
/ptmp/liuz/t8_2008_45km/ob/ .
/ptmp/liuz/t8_2008_45km/ob/ 

7. WRF Forcast and Obs Data
grid nudging experiment
wrfout_d01_ _12:00:00
wrfout_d01_ _00:00:00 .
wrfout_d01_ _00:00:00
control experiment (without grid nudging)

8. WRF Postprocessing run_wrfpost_cyc.ksh
Change WRF output in netcdf format to grib format.

9. Running Process . cnt_point_stat_TMP.vsdb Pb2nc.ksh
point_stat_600000L_ 5_000000V.vsdb
Obs in prebufr
Obs in prebufr
cnt_point_stat_TMP.vsdb
Pb2nc.ksh
point_stat_600000L_ 5_000006V.vsdb
cnt_point_stat_SPFH.vsdb
vsdb_analysis_point.ksh
point_stat.ksh .
cnt_point_stat_UGRD.vsdb
cnt_point_stat_VGRD.vsdb
fcst in grib
cnt_point_stat_WIND.vsdb
fcst in netcdf
run_wrfpost
_cyc.ksh
point_stat_600000L_ 7_000000V.vsdb

10. One record in cnt_point_stat_TMP.vsdb
V WRF _ ADPSFC FULL CNT/ TMP Z = 1221
UW_MEAN
Code to pick up statistic values:
pick2ncl_control.f90
pick2ncl_nudge.f90
Get cnt_point_stat_TMP.txt for reading
And cnt_point_stat_TMP.bin for plotting (NCL)

11. Final Result vi cnt_point_stat_TMP.txt 00 00 06 06 ………………………………48 48
. ADPUPA (Up air observations)
RMSE number RMSE number
………………………………48 48 P P P P P P P P P P

12. Final Result vi cnt_point_stat_TMP.txt RMSE number RMSE number
. ADPSFC (surface observations: in land)
RMSE number RMSE number
………………………………48 48 Z P P P P P P P P P

13. Final Result vi cnt_point_stat_TMP.txt RMSE number RMSE number
. SFCSHP (surface observations: ship)
RMSE number RMSE number
………………………………48 48 Z P P P P P P P P P

14. Final Result vi cnt_point_stat_TMP.txt AIRCFT(aircraft observation)
RMSE number RMSE number
………………………………48 48 Z P P P P P P P P P

15. Specific Humidity

16. Temperature

17. U component

18. V component

19. Wind

20. Appendix A The steps to run on bluefire .
1. Run wpp to change wrf output in netcdf format to grib format.
/ptmp/lir/wrf_test/wrf_em/verification/nudge/scripts/run_wrfpost_cyc_control.ksh
/ptmp/lir/wrf_test/wrf_em/verification/nudge/scripts/run_wrfpost_cyc_nudge.ksh
2. Run point-stat to get matched fcst and obs pairs
/ptmp/lir/wrf_test/wrf_em/verification/nudge/scripts/point_stat_control.ksh
/ptmp/lir/wrf_test/wrf_em/verification/nudge/scripts/point_stat_nudge.ksh
3. Run vsdb tool to get summary info of matched fcst and obs pairs
/ptmp/lir/wrf_test/wrf_em/verification/nudge/scripts/vsdb_analysis_point_control.ksh
/ptmp/lir/wrf_test/wrf_em/verification/nudge/scripts/vsdb_analysis_point_nudge.ksh
4. Get RMSE and BIAS info of matched fcst and obs pairs
/ptmp/lir/wrf_test/wrf_em/verification/nudge/scripts/pick2ncl_control.f90
5. Plot figures
/ptmp/lir/wrf_test/wrf_em/verification/nudge/scripts/plot/ .

21. 
Questions?
Thanks!