{
  "cells": [
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "%matplotlib inline"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "\n# Grid-Stat: Brightness Temperature Distance Maps\n\nmodel_applications/\nconvection_allowing_model/\nGridStat_fcstFV3_obsGOES_BrightnessTempDmap.conf\n"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "## Scientific Objective\n\nTo provide statistical inforation on regions of low brightness temperatures,\ndefined by creating distance maps on the FV3 ensemble members compared to GOES\nchannel 13 brightness temperature satellite data.\n\n"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "## Datasets\n\n * Forecast dataset: FV3 Model member data\n * Observation dataset: GOES Brightness Temperature\n\n\n"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "## METplus Components\n\nThis use case runs runs grid_stat to compute distance maps using a brightness\ntemperature less than 235 K for the forecast and observations.\n\n"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "## METplus Workflow\n\nThe GridStat tool is run for each of 2 ensemble members and for each time.\nThis example loops by initialization time.  It processes 2 lead times, listed\nbelow.\n\n| **Valid:** 2019-05-21_01Z\n| **Forecast lead:** 01\n\n| **Valid:** 2019-05-21_02Z\n| **Forecast lead:** 02\n\n"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "## METplus Configuration\n\nMETplus first loads all of the configuration files found in parm/metplus_config,\nthen it loads any configuration files passed to METplus via the command line\nwith the -c option, i.e. -c parm/use_cases/model_applications/convection_allowing_models/GridStat_fcstFV3_obsGOES_BrightnessTempDmap.conf\n\n.. highlight:: bash\n.. literalinclude:: ../../../../parm/use_cases/model_applications/convection_allowing_models/GridStat_fcstFV3_obsGOES_BrightnessTempDmap.conf\n\n"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "## MET Configuration\n\nMETplus sets environment variables based on user settings in the METplus configuration file.\nSee `How METplus controls MET config file settings<metplus-control-met>` for more details.\n\n**YOU SHOULD NOT SET ANY OF THESE ENVIRONMENT VARIABLES YOURSELF! THEY WILL BE OVERWRITTEN BY METPLUS WHEN IT CALLS THE MET TOOLS!**\n\nIf there is a setting in the MET configuration file that is currently not supported by METplus you'd like to control, please refer to:\n`Overriding Unsupported MET config file settings<met-config-overrides>`\n\n<div class=\"alert alert-info\"><h4>Note</h4><p>See the `GridStat MET Configuration<grid-stat-met-conf>` section of the User's Guide for more information on the environment variables used in the file below:</p></div>\n\n.. highlight:: bash\n.. literalinclude:: ../../../../parm/met_config/GridStatConfig_wrapped\n\n"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "## Running METplus\n\nThis use case can be run two ways:\n\n1) Passing in GridStat_fcstFV3_obsGOES_BrightnessTempDmap.conf then a user-specific system configuration file::\n\n       run_metplus.py -c /path/to/METplus/parm/use_cases/model_applications/convection_allowing_models/GridStat_fcstFV3_obsGOES_BrightnessTempDmap.conf -c /path/to/user_system.conf\n\n2) Modifying the configurations in parm/metplus_config, then passing in GridStat_fcstFV3_obsGOES_BrightnessTempDmap.conf::\n\n       run_metplus.py -c /path/to/METplus/parm/use_cases/model_applications/convection_allowing_models/GridStat_fcstFV3_obsGOES_BrightnessTempDmap.conf\n\nThe 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:\n\n* **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\n* **OUTPUT_BASE** - Path where METplus output will be written. This must be in a location where you have write permissions\n* **MET_INSTALL_DIR** - Path to location where MET is installed locally\n\nExample User Configuration File::\n\n  [dir]\n  INPUT_BASE = /path/to/sample/input/data\n  OUTPUT_BASE = /path/to/output/dir\n  MET_INSTALL_DIR = /path/to/met-X.Y\n\n**NOTE:** All of these items must be found under the [dir] section.\n\n\n"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "## Expected Output\n\nA successful run will output the following both to the screen and to the logfile::\n\n  INFO: METplus has successfully finished running.\n\nRefer to the value set for **OUTPUT_BASE** to find where the output data was generated.\nOutput for this use case will be found in convection_allowing_models/brightness_temperature\n(relative to **OUTPUT_BASE**) and will contain the following files:\n\ngrid_stat/grid_stat_FV3_core_lsm1_000000L_20190521_010000V_dmap.txt\ngrid_stat/grid_stat_FV3_core_lsm1_000000L_20190521_010000V_pairs.nc\ngrid_stat/grid_stat_FV3_core_lsm1_000000L_20190521_010000V.stat\ngrid_stat/grid_stat_FV3_core_lsm1_000000L_20190521_020000V_dmap.txt\ngrid_stat/grid_stat_FV3_core_lsm1_000000L_20190521_020000V_pairs.nc\ngrid_stat/grid_stat_FV3_core_lsm1_000000L_20190521_020000V.stat\ngrid_stat/grid_stat_FV3_core_mp1_000000L_20190521_010000V_dmap.txt\ngrid_stat/grid_stat_FV3_core_mp1_000000L_20190521_010000V_pairs.nc\ngrid_stat/grid_stat_FV3_core_mp1_000000L_20190521_010000V.stat\ngrid_stat/grid_stat_FV3_core_mp1_000000L_20190521_020000V_dmap.txt\ngrid_stat/grid_stat_FV3_core_mp1_000000L_20190521_020000V_pairs.nc\ngrid_stat/grid_stat_FV3_core_mp1_000000L_20190521_020000V.stat\n\n"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "## Keywords\n\nsphinx_gallery_thumbnail_path = '_static/convection_allowing_models-GridStat_fcstFV3_obsGOES_BrightnessTempDmap.png'\n\n<div class=\"alert alert-info\"><h4>Note</h4><p>`GridStatToolUseCase <https://dtcenter.github.io/METplus/search.html?q=GridStatToolUseCase&check_keywords=yes&area=default>`_,</p></div>\n `ConvectionAllowingModelsAppUseCase <https://dtcenter.github.io/METplus/search.html?q=ConvectionAllowingModelsAppUseCase&check_keywords=yes&area=default>`_,\n `NetCDFFileUseCase <https://dtcenter.github.io/METplus/search.html?q=NetCDFFileUseCase&chek_keywords=yes&area=default>`_,\n `NOAAEMCOrgUseCase <https://dtcenter.github.io/METplus/search.html?q=NOAAEMCOrgUseCase&check_keywords=yes&area=default>`_,\n `NOAAHWTOrgUseCase  <https://dtcenter.github.io/METplus/search.html?q=NOAAHWTOrgUseCase&check_keywords=yes&area=default>`_,\n `ValidationUseCase  <https://dtcenter.github.io/METplus/search.html?q=ValidationUseCase&check_keywords=yes&area=default>`_\n\n"
      ]
    }
  ],
  "metadata": {
    "kernelspec": {
      "display_name": "Python 3",
      "language": "python",
      "name": "python3"
    },
    "language_info": {
      "codemirror_mode": {
        "name": "ipython",
        "version": 3
      },
      "file_extension": ".py",
      "mimetype": "text/x-python",
      "name": "python",
      "nbconvert_exporter": "python",
      "pygments_lexer": "ipython3",
      "version": "3.7.9"
    }
  },
  "nbformat": 4,
  "nbformat_minor": 0
}