Load new DMAP columns for G and GBETA.

[JohnHalleyGotway]

Describe the Enhancement

The issue dtcenter/MET#1673 and corresponding pull request dtcenter/MET#1857 add new columns to the distance map (DMAP) line type created by the Grid-Stat tool.

This adds 3 new columns to the end of the existing DMAP line type: G, GBETA, and BETA_VALUE. All 3 columns are floating point numbers. Note that G will always have a value in the output, but GBETA and BETA_VALUE will only have a value when VX_MASK = FULL. When VX_MASK != FULL, GBETA = BETA_VALUE = NA.

Please see corresponding METviewer issue for plotting these stats:
dtcenter/METviewer#323

Please see existing documentation for more details about the configuration options, science, and equations.

Sample data can be found in kiowa:/d1/projects/MET/MET_regression/develop/NB20210818/MET-develop/test_output/met_test_scripts/grid_stat/grid_stat_120000L_20050807_120000V_dmap.txt.

Time Estimate

Estimate the amount of work required here.
Issues should represent approximately 1 to 3 days of work.

Sub-Issues

Consider breaking the enhancement down into sub-issues.
No sub-issues needed.

Relevant Deadlines

Prior to the coordinated METplus 4.1.0 release.

Funding Source

2702691

Define the Metadata

Assignee

• Select engineer(s) or no engineer required: Venita
• Select scientist(s) or no scientist required: no scientist required

Labels

• Select component(s)
• Select priority
• Select requestor(s)

Projects and Milestone

• Select Repository and/or Organization level Project(s) or add alert: NEED PROJECT ASSIGNMENT label
• Select Milestone as the next official version or Future Versions

Define Related Issue(s)

Consider the impact to the other METplus components.

• METplus, MET, METdatadb, METviewer, METexpress, METcalcpy, METplotpy

Enhancement Checklist

See the METplus Workflow for details.

• Complete the issue definition above, including the Time Estimate and Funding Source.
• Fork this repository or create a branch of develop.
  Branch name: feature_<Issue Number>_<Description>
• Complete the development and test your changes.
• Add/update log messages for easier debugging.
• Add/update unit tests.
• Add/update documentation.
• Push local changes to GitHub.
• Submit a pull request to merge into develop.
  Pull request: feature <Issue Number> <Description>
• Define the pull request metadata, as permissions allow.
  Select: Reviewer(s) and Linked issues
  Select: Repository level development cycle Project for the next official release
  Select: Milestone as the next official version
• Iterate until the reviewer(s) accept and merge your changes.
• Delete your fork or branch.
• Close this issue.

[TatianaBurek]

Here is the sample data (remove.txt)
grid_stat_120000L_20050807_120000V.stat.txt

[TatianaBurek]

Updated schema file:
https://github.com/dtcenter/METviewer/blob/issue/324-dmap_stats/sql/mv_mysql.sql

[venitahagerty]

Added new fields g, g_beta, and beta_value to line_data_dmap in constants.py. Requires version of mv_mysql.sql with new columns in line_data_dmap (in METviewer repo). Ran with test data file provided by Tatiana.