Note
Click here to download the full example code
EnsembleStat: Basic Use Case
met_tool_wrapper/EnsembleStat/EnsembleStat.conf
Scientific Objective
To provide useful statistical information on the relationship between observation data (in both grid and point formats) to an ensemble forecast. These values can be used to help correct ensemble member deviations from observed values.
Datasets
METplus Components
This use case utilizes the METplus EnsembleStat wrapper to search for files that are valid at a given run time and generate a command to run the MET tool EnsembleStat if all required files are found.
METplus Workflow
EnsembleStat is the only tool called in this example. It processes the following run times:
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/met_tool_wrapper/EnsembleStat/EnsembleStat.conf
[config]
PROCESS_LIST = EnsembleStat
###
# Time Info
###
LOOP_BY = INIT
INIT_TIME_FMT = %Y%m%d%H
INIT_BEG=2009123112
INIT_END=2009123112
INIT_INCREMENT=3600
LEAD_SEQ = 24H
LOOP_ORDER = times
###
# File I/O
###
FCST_ENSEMBLE_STAT_INPUT_DIR = {INPUT_BASE}/met_test/data/sample_fcst
FCST_ENSEMBLE_STAT_INPUT_TEMPLATE = {init?fmt=%Y%m%d%H}/arw-???-gep?/d01_{init?fmt=%Y%m%d%H}_0{lead?fmt=%HH}00.grib
#ENSEMBLE_STAT_CTRL_INPUT_DIR = {INPUT_BASE}/met_test/data/sample_fcst
#ENSEMBLE_STAT_CTRL_INPUT_TEMPLATE = {init?fmt=%Y%m%d%H}/arw-fer-gep1/d01_{init?fmt=%Y%m%d%H}_0{lead?fmt=%HH}00.grib
ENSEMBLE_STAT_N_MEMBERS = 6
OBS_ENSEMBLE_STAT_POINT_INPUT_DIR = {INPUT_BASE}/met_test/out/ascii2nc
OBS_ENSEMBLE_STAT_POINT_INPUT_TEMPLATE = precip24_{valid?fmt=%Y%m%d%H}.nc
OBS_ENSEMBLE_STAT_GRID_INPUT_DIR = {INPUT_BASE}/met_test/data/sample_obs/ST4
OBS_ENSEMBLE_STAT_GRID_INPUT_TEMPLATE = ST4.{valid?fmt=%Y%m%d%H}.24h
ENSEMBLE_STAT_CLIMO_MEAN_INPUT_DIR =
ENSEMBLE_STAT_CLIMO_MEAN_INPUT_TEMPLATE =
ENSEMBLE_STAT_CLIMO_STDEV_INPUT_DIR =
ENSEMBLE_STAT_CLIMO_STDEV_INPUT_TEMPLATE =
ENSEMBLE_STAT_OUTPUT_DIR = {OUTPUT_BASE}/ensemble
ENSEMBLE_STAT_OUTPUT_TEMPLATE = {init?fmt=%Y%m%d%H%M}/ensemble_stat
###
# Field Info
###
MODEL = WRF
OBTYPE = MC_PCP
FCST_VAR1_NAME = APCP
FCST_VAR1_LEVELS = A24
FCST_VAR1_OPTIONS = ens_ssvar_bin_size = 0.1; ens_phist_bin_size = 0.05;
OBS_VAR1_NAME = {FCST_VAR1_NAME}
OBS_VAR1_LEVELS = {FCST_VAR1_LEVELS}
OBS_VAR1_OPTIONS = {FCST_VAR1_OPTIONS}
ENS_VAR1_NAME = APCP
ENS_VAR1_LEVELS = A24
ENS_VAR1_THRESH = >0.0, >=10.0
ENS_VAR2_NAME = REFC
ENS_VAR2_LEVELS = L0
ENS_VAR2_THRESH = >=35.0
ENS_VAR2_OPTIONS = GRIB1_ptv = 129;
ENS_VAR3_NAME = UGRD
ENS_VAR3_LEVELS = Z10
ENS_VAR3_THRESH = >=5.0
ENS_VAR4_NAME = VGRD
ENS_VAR4_LEVELS = Z10
ENS_VAR4_THRESH = >=5.0
ENS_VAR5_NAME = WIND
ENS_VAR5_LEVELS = Z10
ENS_VAR5_THRESH = >=5.0
###
# EnsembleStat
###
#LOG_ENSEMBLE_STAT_VERBOSITY = 2
ENSEMBLE_STAT_CONFIG_FILE = {PARM_BASE}/met_config/EnsembleStatConfig_wrapped
ENSEMBLE_STAT_DESC = NA
OBS_ENSEMBLE_STAT_WINDOW_BEGIN = -5400
OBS_ENSEMBLE_STAT_WINDOW_END = 5400
ENSEMBLE_STAT_ENS_THRESH = 1.0
ENSEMBLE_STAT_ENS_VLD_THRESH = 1.0
ENSEMBLE_STAT_OUTPUT_PREFIX =
#ENSEMBLE_STAT_MET_OBS_ERR_TABLE =
ENSEMBLE_STAT_REGRID_TO_GRID = NONE
ENSEMBLE_STAT_REGRID_METHOD = NEAREST
ENSEMBLE_STAT_REGRID_WIDTH = 1
ENSEMBLE_STAT_REGRID_VLD_THRESH = 0.5
ENSEMBLE_STAT_REGRID_SHAPE = SQUARE
ENSEMBLE_STAT_CENSOR_THRESH =
ENSEMBLE_STAT_CENSOR_VAL =
ENSEMBLE_STAT_NBRHD_PROB_WIDTH = 5
ENSEMBLE_STAT_NBRHD_PROB_SHAPE = CIRCLE
ENSEMBLE_STAT_NBRHD_PROB_VLD_THRESH = 0.0
ENSEMBLE_STAT_NMEP_SMOOTH_VLD_THRESH = 0.0
ENSEMBLE_STAT_NMEP_SMOOTH_SHAPE = CIRCLE
ENSEMBLE_STAT_NMEP_SMOOTH_GAUSSIAN_DX = 81.27
ENSEMBLE_STAT_NMEP_SMOOTH_GAUSSIAN_RADIUS = 120
ENSEMBLE_STAT_NMEP_SMOOTH_METHOD = GAUSSIAN
ENSEMBLE_STAT_NMEP_SMOOTH_WIDTH = 1
#ENSEMBLE_STAT_PROB_CAT_THRESH =
#ENSEMBLE_STAT_PROB_PCT_THRESH = ==0.25
#ENSEMBLE_STAT_ECLV_POINTS = 0.05
ENSEMBLE_STAT_MESSAGE_TYPE = ADPSFC
ENSEMBLE_STAT_DUPLICATE_FLAG = NONE
ENSEMBLE_STAT_SKIP_CONST = False
ENSEMBLE_STAT_OBS_ERROR_FLAG = FALSE
ENSEMBLE_STAT_ENS_SSVAR_BIN_SIZE = 1.0
ENSEMBLE_STAT_ENS_PHIST_BIN_SIZE = 0.05
#ENSEMBLE_STAT_CLIMO_MEAN_FILE_NAME =
#ENSEMBLE_STAT_CLIMO_MEAN_FIELD =
#ENSEMBLE_STAT_CLIMO_MEAN_REGRID_METHOD =
#ENSEMBLE_STAT_CLIMO_MEAN_REGRID_WIDTH =
#ENSEMBLE_STAT_CLIMO_MEAN_REGRID_VLD_THRESH =
#ENSEMBLE_STAT_CLIMO_MEAN_REGRID_SHAPE =
#ENSEMBLE_STAT_CLIMO_MEAN_TIME_INTERP_METHOD =
#ENSEMBLE_STAT_CLIMO_MEAN_MATCH_MONTH =
#ENSEMBLE_STAT_CLIMO_MEAN_DAY_INTERVAL = 31
#ENSEMBLE_STAT_CLIMO_MEAN_HOUR_INTERVAL = 6
#ENSEMBLE_STAT_CLIMO_STDEV_FILE_NAME =
#ENSEMBLE_STAT_CLIMO_STDEV_FIELD =
#ENSEMBLE_STAT_CLIMO_STDEV_REGRID_METHOD =
#ENSEMBLE_STAT_CLIMO_STDEV_REGRID_WIDTH =
#ENSEMBLE_STAT_CLIMO_STDEV_REGRID_VLD_THRESH =
#ENSEMBLE_STAT_CLIMO_STDEV_REGRID_SHAPE =
#ENSEMBLE_STAT_CLIMO_STDEV_TIME_INTERP_METHOD =
#ENSEMBLE_STAT_CLIMO_STDEV_MATCH_MONTH =
#ENSEMBLE_STAT_CLIMO_STDEV_DAY_INTERVAL = 31
#ENSEMBLE_STAT_CLIMO_STDEV_HOUR_INTERVAL = 6
ENSEMBLE_STAT_CLIMO_CDF_BINS = 1
ENSEMBLE_STAT_CLIMO_CDF_CENTER_BINS = False
ENSEMBLE_STAT_CLIMO_CDF_WRITE_BINS = True
#ENSEMBLE_STAT_CLIMO_CDF_DIRECT_PROB =
ENSEMBLE_STAT_MASK_GRID = FULL
ENSEMBLE_STAT_MASK_POLY =
MET_BASE/poly/HMT_masks/huc4_1605_poly.nc,
MET_BASE/poly/HMT_masks/huc4_1803_poly.nc,
MET_BASE/poly/HMT_masks/huc4_1804_poly.nc,
MET_BASE/poly/HMT_masks/huc4_1805_poly.nc,
MET_BASE/poly/HMT_masks/huc4_1806_poly.nc
ENSEMBLE_STAT_CI_ALPHA = 0.05
ENSEMBLE_STAT_INTERP_FIELD = BOTH
ENSEMBLE_STAT_INTERP_VLD_THRESH = 1.0
ENSEMBLE_STAT_INTERP_SHAPE = SQUARE
ENSEMBLE_STAT_INTERP_METHOD = NEAREST
ENSEMBLE_STAT_INTERP_WIDTH = 1
ENSEMBLE_STAT_OUTPUT_FLAG_ECNT = BOTH
ENSEMBLE_STAT_OUTPUT_FLAG_RPS = NONE
ENSEMBLE_STAT_OUTPUT_FLAG_RHIST = BOTH
ENSEMBLE_STAT_OUTPUT_FLAG_PHIST = BOTH
ENSEMBLE_STAT_OUTPUT_FLAG_ORANK = BOTH
ENSEMBLE_STAT_OUTPUT_FLAG_SSVAR = BOTH
ENSEMBLE_STAT_OUTPUT_FLAG_RELP = BOTH
#ENSEMBLE_STAT_OUTPUT_FLAG_PCT = BOTH
#ENSEMBLE_STAT_OUTPUT_FLAG_PSTD = BOTH
#ENSEMBLE_STAT_OUTPUT_FLAG_PJC = BOTH
#ENSEMBLE_STAT_OUTPUT_FLAG_PRC = BOTH
#ENSEMBLE_STAT_OUTPUT_FLAG_ECLV = BOTH
ENSEMBLE_STAT_ENSEMBLE_FLAG_LATLON = TRUE
ENSEMBLE_STAT_ENSEMBLE_FLAG_MEAN = TRUE
ENSEMBLE_STAT_ENSEMBLE_FLAG_STDEV = TRUE
ENSEMBLE_STAT_ENSEMBLE_FLAG_MINUS = TRUE
ENSEMBLE_STAT_ENSEMBLE_FLAG_PLUS = TRUE
ENSEMBLE_STAT_ENSEMBLE_FLAG_MIN = TRUE
ENSEMBLE_STAT_ENSEMBLE_FLAG_MAX = TRUE
ENSEMBLE_STAT_ENSEMBLE_FLAG_RANGE = TRUE
ENSEMBLE_STAT_ENSEMBLE_FLAG_VLD_COUNT = TRUE
ENSEMBLE_STAT_ENSEMBLE_FLAG_FREQUENCY = TRUE
ENSEMBLE_STAT_ENSEMBLE_FLAG_NEP = FALSE
ENSEMBLE_STAT_ENSEMBLE_FLAG_NMEP = FALSE
ENSEMBLE_STAT_ENSEMBLE_FLAG_RANK = TRUE
ENSEMBLE_STAT_ENSEMBLE_FLAG_WEIGHT = FALSE
#ENSEMBLE_STAT_OBS_QUALITY_INC =
#ENSEMBLE_STAT_OBS_QUALITY_EXC =
#ENSEMBLE_STAT_ENS_MEMBER_IDS =
#ENSEMBLE_STAT_CONTROL_ID =
#ENSEMBLE_STAT_GRID_WEIGHT_FLAG =
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 EnsembleStat MET Configuration section of the User’s Guide for more information on the environment variables used in the file below:
////////////////////////////////////////////////////////////////////////////////
//
// Ensemble-Stat configuration file.
//
// For additional information, see the MET_BASE/config/README file.
//
////////////////////////////////////////////////////////////////////////////////
//
// Output model name to be written
//
${METPLUS_MODEL}
//
// Output description to be written
// May be set separately in each "obs.field" entry
//
${METPLUS_DESC}
//
// Output observation type to be written
//
${METPLUS_OBTYPE}
////////////////////////////////////////////////////////////////////////////////
//
// Verification grid
//
${METPLUS_REGRID_DICT}
////////////////////////////////////////////////////////////////////////////////
//
// May be set separately in each "field" entry
//
${METPLUS_CENSOR_THRESH}
${METPLUS_CENSOR_VAL}
cat_thresh = [];
nc_var_str = "";
//
// Ensemble product fields to be processed
//
ens = {
${METPLUS_ENS_FILE_TYPE}
${METPLUS_ENS_THRESH}
${METPLUS_ENS_VLD_THRESH}
${METPLUS_ENS_OBS_THRESH}
${METPLUS_ENS_FIELD}
}
//ens_member_ids =
${METPLUS_ENS_MEMBER_IDS}
//control_id =
${METPLUS_CONTROL_ID}
////////////////////////////////////////////////////////////////////////////////
//
// Neighborhood ensemble probabilities
//
${METPLUS_NBRHD_PROB_DICT}
//
// NMEP smoothing methods
//
${METPLUS_NMEP_SMOOTH_DICT}
////////////////////////////////////////////////////////////////////////////////
//prob_cat_thresh =
${METPLUS_PROB_CAT_THRESH}
//prob_pct_thresh =
${METPLUS_PROB_PCT_THRESH}
//eclv_points =
${METPLUS_ECLV_POINTS}
////////////////////////////////////////////////////////////////////////////////
//
// Forecast and observation fields to be verified
//
fcst = {
${METPLUS_FCST_FILE_TYPE}
${METPLUS_FCST_FIELD}
}
obs = {
${METPLUS_OBS_FILE_TYPE}
${METPLUS_OBS_FIELD}
}
////////////////////////////////////////////////////////////////////////////////
//
// Point observation filtering options
// May be set separately in each "obs.field" entry
//
${METPLUS_MESSAGE_TYPE}
sid_exc = [];
obs_thresh = [ NA ];
//obs_quality_inc =
${METPLUS_OBS_QUALITY_INC}
//obs_quality_exc =
${METPLUS_OBS_QUALITY_EXC}
${METPLUS_DUPLICATE_FLAG}
obs_summary = NONE;
obs_perc_value = 50;
${METPLUS_SKIP_CONST}
//
// Observation error options
// Set dist_type to NONE to use the observation error table instead
// May be set separately in each "obs.field" entry
//
obs_error = {
${METPLUS_OBS_ERROR_FLAG}
dist_type = NONE;
dist_parm = [];
inst_bias_scale = 1.0;
inst_bias_offset = 0.0;
min = NA; // Valid range of data
max = NA;
}
//
// Mapping of message type group name to comma-separated list of values.
//
message_type_group_map = [
{ key = "SURFACE"; val = "ADPSFC,SFCSHP,MSONET"; },
{ key = "ANYAIR"; val = "AIRCAR,AIRCFT"; },
{ key = "ANYSFC"; val = "ADPSFC,SFCSHP,ADPUPA,PROFLR,MSONET"; },
{ key = "ONLYSF"; val = "ADPSFC,SFCSHP"; }
];
//
// Ensemble bin sizes
// May be set separately in each "obs.field" entry
//
${METPLUS_ENS_SSVAR_BIN_SIZE}
${METPLUS_ENS_PHIST_BIN_SIZE}
////////////////////////////////////////////////////////////////////////////////
//
// Climatology data
//
//climo_mean = {
${METPLUS_CLIMO_MEAN_DICT}
//climo_stdev = {
${METPLUS_CLIMO_STDEV_DICT}
//
// May be set separately in each "obs.field" entry
//
${METPLUS_CLIMO_CDF_DICT}
////////////////////////////////////////////////////////////////////////////////
//
// Point observation time window
//
${METPLUS_OBS_WINDOW_DICT}
////////////////////////////////////////////////////////////////////////////////
//
// Verification masking regions
//
mask = {
${METPLUS_MASK_GRID}
${METPLUS_MASK_POLY}
sid = [];
llpnt = [];
}
////////////////////////////////////////////////////////////////////////////////
//
// Confidence interval settings
//
${METPLUS_CI_ALPHA}
////////////////////////////////////////////////////////////////////////////////
//
// Interpolation methods
//
${METPLUS_INTERP_DICT}
////////////////////////////////////////////////////////////////////////////////
//
// Statistical output types
//
${METPLUS_OUTPUT_FLAG_DICT}
////////////////////////////////////////////////////////////////////////////////
//
// Ensemble product output types
//
${METPLUS_ENSEMBLE_FLAG_DICT}
////////////////////////////////////////////////////////////////////////////////
//
// Random number generator
//
rng = {
type = "mt19937";
seed = "1";
}
////////////////////////////////////////////////////////////////////////////////
//grid_weight_flag =
${METPLUS_GRID_WEIGHT_FLAG}
${METPLUS_OUTPUT_PREFIX}
//version = "V9.0";
////////////////////////////////////////////////////////////////////////////////
tmp_dir = "${MET_TMP_DIR}";
${METPLUS_MET_CONFIG_OVERRIDES}
Running METplus
It is recommended to run this use case by:
Passing in EnsembleStat.conf then a user-specific system configuration file:
run_metplus.py /path/to/METplus/parm/use_cases/met_tool_wrapper/EnsembleStat/EnsembleStat.conf /path/to/user_system.conf
The following METplus configuration variables must be set correctly to run this example.:
INPUT_BASE - Path to directory where sample data tarballs are unpacked (See Datasets section to obtain tarballs).
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 ensemble/200912311200/ensemble_stat (relative to OUTPUT_BASE) and will contain the following files:
ensemble_stat_20100101_120000V.stat
ensemble_stat_20100101_120000V_ecnt.txt
ensemble_stat_20100101_120000V_rhist.txt
ensemble_stat_20100101_120000V_phist.txt
ensemble_stat_20100101_120000V_orank.txt
ensemble_stat_20100101_120000V_ssvar.txt
ensemble_stat_20100101_120000V_relp.txt
ensemble_stat_20100101_120000V_ens.nc
ensemble_stat_20100101_120000V_orank.nc
Keywords
Note
EnsembleStatToolUseCase
PythonEmbeddingFileUseCase
EnsembleAppUseCase
ProbabilityGenerationAppUseCase
GRIBFileUseCase
Navigate to METplus Quick Search for Use Cases to discover other similar use cases.
sphinx_gallery_thumbnail_path = ‘_static/met_tool_wrapper-EnsembleStat.png’
Total running time of the script: ( 0 minutes 0.000 seconds)