Single value variable of type int32 in NetCDF becomes float64 in Kerchunk
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Description
@martindurant, looks like we still have a single-value variable problem.
In these AWS Open Data NetCDF files, the variable 'spherical' has a single int32 value but it becomes a float64 after kerchunk:
https://nbviewer.org/gist/rsignell-usgs/5971951d348496229ce121b52a2fb750
(I discovered this because the xroms package designed to work with these ROMS NetCDF files bombed -- took me a while to figure out this was the reason...)
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Research direction
Start with the linked nbviewer gist and inspect how the single-value variable spherical is represented in the source AWS Open Data NetCDF file and after kerchunk processing. Trace the handling of its scalar value and verify that the resulting representation preserves the source int32 type rather than becoming float64.
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Assessment
- Tech stack
- python
- Domain
- data
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
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- Stale
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