METplus Use Case: QPF Probabilistic
The QPF Probabilistic use case utilizes the MET Pcp-Combine, Regrid-Data-Plane, and Grid-Stat tools.
Optional: Refer to the METplus Config Glossary section of the METplus Users Guide for a reference to METplus variables used in this use case.
Review Use Case Configuration File
The configuration file is located in use_cases/model_applications/precipitation and is called GridStat_fcstHRRR-TLE_obsStgIV_GRIB.conf
Note that several processes are called in this use-case and that there is a specific setting to tell METplus that the forecast field is probabilistic. For example:
FCST_IS_PROB = true
Also note that variables in GridStat_fcstHRRR-TLE_obsStgIV_GRIB.conf reference other config variables that have been defined in configuration files. For example:
OBS_PCP_COMBINE_INPUT_DIR = {INPUT_BASE}/model_applications/precipitation/StageIV
This references INPUT_BASE which is set in the METplus tutorial.conf file (${METPLUS_TUTORIAL_DIR}/tutorial.conf). METplus config variables can reference other config variables even if they are defined in a config file that is read afterwards.
Run METplus
${METPLUS_BUILD_BASE}/parm/use_cases/model_applications/precipitation/GridStat_fcstHRRR-TLE_obsStgIV_GRIB.conf \
${METPLUS_TUTORIAL_DIR}/tutorial.conf \
config.OUTPUT_BASE=${METPLUS_TUTORIAL_DIR}/output/PQPF
METplus is finished running when control returns to your terminal console and you see the following text:
Review the Output Files
You should have output files in the following directories:
- grid_stat_PROB_PHPT_APCP_vs_STAGE4_GRIB_APCP_A06_060000L_20160904_180000V_pct.txt
- grid_stat_PROB_PHPT_APCP_vs_STAGE4_GRIB_APCP_A06_060000L_20160904_180000V_pjc.txt
- grid_stat_PROB_PHPT_APCP_vs_STAGE4_GRIB_APCP_A06_060000L_20160904_180000V_prc.txt
- grid_stat_PROB_PHPT_APCP_vs_STAGE4_GRIB_APCP_A06_060000L_20160904_180000V_pstd.txt
- grid_stat_PROB_PHPT_APCP_vs_STAGE4_GRIB_APCP_A06_060000L_20160904_180000V.stat
- grid_stat_PROB_PHPT_APCP_vs_STAGE4_GRIB_APCP_A06_070000L_20160904_190000V_pct.txt
- grid_stat_PROB_PHPT_APCP_vs_STAGE4_GRIB_APCP_A06_070000L_20160904_190000V_pjc.txt
- grid_stat_PROB_PHPT_APCP_vs_STAGE4_GRIB_APCP_A06_070000L_20160904_190000V_prc.txt
- grid_stat_PROB_PHPT_APCP_vs_STAGE4_GRIB_APCP_A06_070000L_20160904_190000V_pstd.txt
- grid_stat_PROB_PHPT_APCP_vs_STAGE4_GRIB_APCP_A06_070000L_20160904_190000V.stat
Review the Log Files
Log files for this run are found in ${METPLUS_TUTORIAL_DIR}/output/PQPF/logs. The filename contains a timestamp of the year, month, day, hour, minute, second that the METplus command was run. The log file for this command will be the most recent one.
Review the Final Configuration File
The final configuration files are found in ${METPLUS_TUTORIAL_DIR}/output/PQPF. Similar to the log files, the configuration file contains a timestamp of the time that the METplus command was run.
