Describe the Enhancement

This enhancement request arose via GitHub discussion dtcenter/METplus#2312. Please see this comment from that discussion for more information about the IABP/IPAB Arctic and Antarctic drifting buoy observation dataset.

Some details to note:

• Dataset description: https://iabp.apl.uw.edu/data.html
• Sample data: https://iabp.apl.uw.edu/WebData/
• The data is stored in one ASCII file per buoy. So each file many contain months or years of data for each buoy.
• Enhance ASCII2NC to read this data source.
• In particular, extract the meteorological observations of temperature and pressure (along with any others).

Also enhance ASCII2NC to filter data by time. Currently, ASCII2NC can compute time summaries through the config file but cannot filter the input data by time. Recommend adding valid_beg and valid_end config options to support by time. pb2nc already supports this using the obs_window config option or -valid_beg and -valid_end command line options.

This will provide flexibility in how ASCII2NC is run to process the data. Users many want the input/output files the same with each file containing all obs for a single buoy. Or they may want to extract obs from all the buoys for some time window (e.g. daily or monthly perhaps). Filtering by time provides that option.

Could also consider filtering in space by supporting the mask config option, but that's not explicitly needed for this data. This feature request moved to #2754.

Time Estimate

3 days?

Sub-Issues

Consider breaking the enhancement down into sub-issues.

Relevant Deadlines

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Funding Source

2784543 NOAA R2O METp SW2

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Define Related Issue(s)

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• METplus, MET, METdataio, METviewer, METexpress, METcalcpy, METplotpy
• Need an issue for METplus to update the ascii2nc wrapper accordingly: Enhance the ASCII2NC wrapper to support setting the -valid_beg and -valid_end command line options METplus#2547

Enhancement Checklist

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