Note

Go to the end to download the full example code

Grid-Stat: Surrogate Severe and Practically Perfect Evaluation

model_applications/ short_range/ GridStat_fcstHRRR_obsPracPerfect _SurrogateSevere.conf

Scientific Objective

To evaluate the surrogate severe forecasts at predicting Severe weather using the (12Z - 12Z) practically perfect storm reports.

Datasets

  • Forecast dataset: HRRR Surrogate Severe Data

  • Observation dataset: Practically Perfect from Local Storm Reports.

METplus Components

This use case runs grid_stat to create categorical statistics for Surrogate Severe derived from the HRRR model and Practially Perfect Analysis derived from local storm reports.

METplus Workflow

The grid_stat tool is run for each time. This example loops by valid time. It processes 1 valid time, listed below.

Valid: 2020-02-06_12Z
Forecast lead: 36

METplus Configuration

METplus first loads all of the configuration files found in parm/metplus_config, then it loads any configuration files passed to METplus via the command line with the -c option, i.e. -c parm/use_cases/model_applications/short_range/GridStat_fcstHRRR_obsPracPerfect_SurrogateSevere.conf

[config]

# Documentation for this use case can be found at
# https://metplus.readthedocs.io/en/latest/generated/model_applications/short_range/GridStat_fcstHRRR_obsPracPerfect_SurrogateSevere.html

# For additional information, please see the METplus Users Guide.
# https://metplus.readthedocs.io/en/latest/Users_Guide

###
# Processes to run
# https://metplus.readthedocs.io/en/latest/Users_Guide/systemconfiguration.html#process-list
###

PROCESS_LIST = GridStat


###
# Time Info
# LOOP_BY options are INIT, VALID, RETRO, and REALTIME
# If set to INIT or RETRO:
#   INIT_TIME_FMT, INIT_BEG, INIT_END, and INIT_INCREMENT must also be set
# If set to VALID or REALTIME:
#   VALID_TIME_FMT, VALID_BEG, VALID_END, and VALID_INCREMENT must also be set
# LEAD_SEQ is the list of forecast leads to process
# https://metplus.readthedocs.io/en/latest/Users_Guide/systemconfiguration.html#timing-control
###

LOOP_BY = VALID
VALID_TIME_FMT = %Y%m%d%H
VALID_BEG=2020020612
VALID_END=2020020612
VALID_INCREMENT=86400

INIT_SEQ = 0
LEAD_SEQ_MIN = 36
LEAD_SEQ_MAX = 36


###
# File I/O
# https://metplus.readthedocs.io/en/latest/Users_Guide/systemconfiguration.html#directory-and-filename-template-info
###

FCST_GRID_STAT_INPUT_DIR = {INPUT_BASE}/model_applications/short_range/surrogate_severe_prac_perfect
FCST_GRID_STAT_INPUT_TEMPLATE = surrogate_severe_{init?fmt=%Y%m%d}_{lead?fmt=%HHH}V_regrid.nc

OBS_GRID_STAT_INPUT_DIR = {FCST_GRID_STAT_INPUT_DIR}
OBS_GRID_STAT_INPUT_TEMPLATE = StormReps_211_Probs.{init?fmt=%Y%m%d}.nc

GRID_STAT_OUTPUT_DIR = {OUTPUT_BASE}/model_applications/short_range/surrogate_severe_prac_perfect/grid_stat


###
# Field Info
# https://metplus.readthedocs.io/en/latest/Users_Guide/systemconfiguration.html#field-info
###

MODEL = HRRR
OBTYPE = PP

FCST_VAR1_NAME = MXUPHL_prob_75
FCST_VAR1_LEVELS = "(*,*)"
FCST_VAR1_THRESH = ge0.02, ge0.05, ge0.10, ge0.10, ge0.15, ge0.30, ge0.45, ge0.60

FCST_VAR2_NAME = MXUPHL_prob_80
FCST_VAR2_LEVELS = {FCST_VAR1_LEVELS}
FCST_VAR2_THRESH = {FCST_VAR1_THRESH}

FCST_VAR3_NAME = MXUPHL_prob_85
FCST_VAR3_LEVELS = {FCST_VAR1_LEVELS}
FCST_VAR3_THRESH = {FCST_VAR1_THRESH}

FCST_VAR4_NAME = MXUPHL_prob_90
FCST_VAR4_LEVELS = {FCST_VAR1_LEVELS}
FCST_VAR4_THRESH = {FCST_VAR1_THRESH}

FCST_VAR5_NAME = MXUPHL_prob_95
FCST_VAR5_LEVELS = {FCST_VAR1_LEVELS}
FCST_VAR5_THRESH = {FCST_VAR1_THRESH}

OBS_VAR1_NAME = PP_probs
OBS_VAR1_LEVELS = "(*,*)"
OBS_VAR1_THRESH = ge0.02, ge0.05, ge0.10, ge0.10, ge0.15, ge0.30, ge0.45, ge0.60

OBS_VAR2_NAME = {OBS_VAR1_NAME}
OBS_VAR2_LEVELS = {OBS_VAR1_LEVELS}
OBS_VAR2_THRESH = {OBS_VAR1_THRESH}

OBS_VAR3_NAME = {OBS_VAR1_NAME}
OBS_VAR3_LEVELS = {OBS_VAR1_LEVELS}
OBS_VAR3_THRESH = {OBS_VAR1_THRESH}

OBS_VAR4_NAME = {OBS_VAR1_NAME}
OBS_VAR4_LEVELS = {OBS_VAR1_LEVELS}
OBS_VAR4_THRESH = {OBS_VAR1_THRESH}

OBS_VAR5_NAME = {OBS_VAR1_NAME}
OBS_VAR5_LEVELS = {OBS_VAR1_LEVELS}
OBS_VAR5_THRESH = {OBS_VAR1_THRESH}


###
# GridStat Settings
# https://metplus.readthedocs.io/en/latest/Users_Guide/wrappers.html#gridstat
###

GRID_STAT_OUTPUT_FLAG_CTC = BOTH
GRID_STAT_OUTPUT_FLAG_CTS = BOTH

GRID_STAT_NC_PAIRS_FLAG_LATLON = FALSE
GRID_STAT_NC_PAIRS_FLAG_RAW = FALSE
GRID_STAT_NC_PAIRS_FLAG_DIFF = FALSE
GRID_STAT_NC_PAIRS_FLAG_CLIMO = FALSE
GRID_STAT_NC_PAIRS_FLAG_APPLY_MASK = FALSE

MET Configuration

METplus sets environment variables based on user settings in the METplus configuration file. See How METplus controls MET config file settings for more details.

YOU SHOULD NOT SET ANY OF THESE ENVIRONMENT VARIABLES YOURSELF! THEY WILL BE OVERWRITTEN BY METPLUS WHEN IT CALLS THE MET TOOLS!

If there is a setting in the MET configuration file that is currently not supported by METplus you’d like to control, please refer to: Overriding Unsupported MET config file settings

Note

See the GridStat MET Configuration section of the User’s Guide for more information on the environment variables used in the file below:

////////////////////////////////////////////////////////////////////////////////
//
// Grid-Stat configuration file.
//
// For additional information, see the MET_BASE/config/README file.
//
////////////////////////////////////////////////////////////////////////////////

//
// Output model name to be written
//
// model =
${METPLUS_MODEL}

//
// Output description to be written
// May be set separately in each "obs.field" entry
//
// desc =
${METPLUS_DESC}

//
// Output observation type to be written
//
// obtype =
${METPLUS_OBTYPE}

////////////////////////////////////////////////////////////////////////////////

//
// Verification grid
//
// regrid = {
${METPLUS_REGRID_DICT}

////////////////////////////////////////////////////////////////////////////////

//censor_thresh =
${METPLUS_CENSOR_THRESH}
//censor_val =
${METPLUS_CENSOR_VAL}
cat_thresh  	 = [];
cnt_thresh  	 = [ NA ];
cnt_logic   	 = UNION;
wind_thresh 	 = [ NA ];
wind_logic  	 = UNION;
eclv_points      = 0.05;
//nc_pairs_var_name =
${METPLUS_NC_PAIRS_VAR_NAME}
nc_pairs_var_suffix = "";
//hss_ec_value =
${METPLUS_HSS_EC_VALUE}

rank_corr_flag   = FALSE;

//
// Forecast and observation fields to be verified
//
fcst = {
  ${METPLUS_FCST_FILE_TYPE}
  ${METPLUS_FCST_FIELD}
}
obs = {
  ${METPLUS_OBS_FILE_TYPE}
  ${METPLUS_OBS_FIELD}
}

////////////////////////////////////////////////////////////////////////////////

//
// Climatology mean data
//
//climo_mean = {
${METPLUS_CLIMO_MEAN_DICT}


//climo_stdev = {
${METPLUS_CLIMO_STDEV_DICT}

//
// May be set separately in each "obs.field" entry
//
//climo_cdf = {
${METPLUS_CLIMO_CDF_DICT}

////////////////////////////////////////////////////////////////////////////////

//
// Verification masking regions
//
// mask = {
${METPLUS_MASK_DICT}

////////////////////////////////////////////////////////////////////////////////

//
// Confidence interval settings
//
ci_alpha  = [ 0.05 ];

boot = {
   interval = PCTILE;
   rep_prop = 1.0;
   n_rep    = 0;
   rng      = "mt19937";
   seed     = "";
}

////////////////////////////////////////////////////////////////////////////////

//
// Data smoothing methods
//
//interp = {
${METPLUS_INTERP_DICT}

////////////////////////////////////////////////////////////////////////////////

//
// Neighborhood methods
//
nbrhd = {
   field      = BOTH;
   // shape =
   ${METPLUS_NBRHD_SHAPE}
   // width =
   ${METPLUS_NBRHD_WIDTH}
   // cov_thresh =
   ${METPLUS_NBRHD_COV_THRESH}
   vld_thresh = 1.0;
}

////////////////////////////////////////////////////////////////////////////////

//
// Fourier decomposition
// May be set separately in each "obs.field" entry
//
//fourier = {
${METPLUS_FOURIER_DICT}

////////////////////////////////////////////////////////////////////////////////

//
// Gradient statistics
// May be set separately in each "obs.field" entry
//
gradient = {
   dx = [ 1 ];
   dy = [ 1 ];
}

////////////////////////////////////////////////////////////////////////////////

//
// Distance Map statistics
// May be set separately in each "obs.field" entry
//
//distance_map = {
${METPLUS_DISTANCE_MAP_DICT}

////////////////////////////////////////////////////////////////////////////////

//
// Statistical output types
//
//output_flag = {
${METPLUS_OUTPUT_FLAG_DICT}

//
// NetCDF matched pairs output file
// May be set separately in each "obs.field" entry
//
// nc_pairs_flag = {
${METPLUS_NC_PAIRS_FLAG_DICT}

////////////////////////////////////////////////////////////////////////////////
// Threshold for SEEPS p1 (Probability of being dry)

//seeps_p1_thresh =
${METPLUS_SEEPS_P1_THRESH}

////////////////////////////////////////////////////////////////////////////////

//grid_weight_flag =
${METPLUS_GRID_WEIGHT_FLAG}

tmp_dir = "${MET_TMP_DIR}";

// output_prefix =
${METPLUS_OUTPUT_PREFIX}

////////////////////////////////////////////////////////////////////////////////

${METPLUS_MET_CONFIG_OVERRIDES}

Running METplus

This use case can be run two ways:

  1. Passing in GridStat_fcstHRRR_obsPracPerfect_SurrogateSevere.conf then a user-specific system configuration file:

    run_metplus.py -c /path/to/METplus/parm/use_cases/model_applications/short_range/GridStat_fcstHRRR_obsPracPerfect_SurrogateSevere.conf -c /path/to/user_system.conf

  2. Modifying the configurations in parm/metplus_config, then passing in GridStat_fcstHRRR_obsPracPerfect_SurrogateSevere.conf:

    run_metplus.py -c /path/to/METplus/parm/use_cases/model_applications/short_range/GridStat_fcstHRRR_obsPracPerfect_SurrogateSevere.conf

The former method is recommended. Whether you add them to a user-specific configuration file or modify the metplus_config files, the following variables must be set correctly:

  • INPUT_BASE - Path to directory where sample data tarballs are unpacked (See Datasets section to obtain tarballs). This is not required to run METplus, but it is required to run the examples in parm/use_cases

  • OUTPUT_BASE - Path where METplus output will be written. This must be in a location where you have write permissions

  • MET_INSTALL_DIR - Path to location where MET is installed locally

Example User Configuration File:

[dir]
INPUT_BASE = /path/to/sample/input/data
OUTPUT_BASE = /path/to/output/dir
MET_INSTALL_DIR = /path/to/met-X.Y

NOTE: All of these items must be found under the [dir] section.

Expected Output

A successful run will output the following both to the screen and to the logfile:

INFO: METplus has successfully finished running.

Refer to the value set for OUTPUT_BASE to find where the output data was generated. Output for this use case will be found in model_applications/short_range/surrogate_severe_prac_perfect/grid_stat (relative to OUTPUT_BASE) and will contain the following files:

grid_stat_360000L_20200206_120000V_ctc.txt grid_stat_360000L_20200206_120000V_cts.txt grid_stat_360000L_20200206_120000V.stat

Keywords

Note

  • GridStatToolUseCase

  • ShortRangeAppUseCase

  • NetCDFFileUseCase

  • NOAAHWTOrgUseCase

  • NCAROrgUseCase

  • NOAAHMTOrgUseCase

Navigate to the METplus Quick Search for Use Cases page to discover other similar use cases.

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