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Describe the New Use Case

Using python embedding, compute PBLH from AMDAR aircraft data using the "Theta-increase" method (Nielsen-Gammon et al., 2008, J. App. Met. Clim.), which creates an altitude ascending array for each flight, computes a potential temperature base value, and finds the first altitude that exceeds a specified increase in potential temperature. The geographic region(s)/airport(s) of interest is specified, and the lat/lon domain to determined by processing a static mask (which is created for each region/airport via gen_vx_mask). The airport(s), pt_delta (theta-increase), and sounding can all be specified in the configuration script.

Use Case Name and Category

PointStat_fcstHRRR_obsAMDAR_PBLH
Category: model_applications/pbl

Input Data

AMDAR hourly netcdf file: 221822000q.cdf (7.1 MB)
HRRR grib2 file: hrrr_pblh_2218208000012 (5.1 MB)

Acceptance Testing

Use gen_vx_mask to create a circular static mask around the airport(s) of interest, and then point-stat with python embedding to generate .stat files of PBL Height.

Time Estimate

Approximately 3 months (including PBLH algorithm development)

Sub-Issues

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Relevant Deadlines

To be implemented as part of the June 2023 MET/METplus release.

Funding Source

GSL Task II funds

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Projects and Milestone

• Select Repository and/or Organization level Project(s) or add alert: NEED CYCLE ASSIGNMENT label
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Define Related Issue(s)

Consider the impact to the other METplus components.

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

New Use Case 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.
• Add any new Python packages to the METplus Components Python Requirements table.
• Push local changes to GitHub.
• Submit a pull request to merge into develop.
  Pull request: feature <Issue Number> <Description>
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  Select: Reviewer(s) and Development 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 your changes. Merge branch into develop.
• Create a second pull request to merge develop into develop-ref, following the same steps for the first pull request.
• Delete your fork or branch.
• Close this issue.