Dataset read muti-time data in one file
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- Dominant language
- Python
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Description
I have a wrfout data with 24h data
dimensions(sizes): Time(24), DateStrLen(19), west_east(87), south_north(74), bottom_top(23), bottom_top_stag(24), soil_layers_stag(4), west_east_stag(88), south_north_stag(75)
ncfile = Dataset("wrfout_d01_2019-03-22_00:00:00")
Extract the pressure, geopotential height, and wind variables
p = getvar(ncfile, "pressure")
z = getvar(ncfile, "z", units="dm")
ua = getvar(ncfile, "ua", units="kt")
va = getvar(ncfile, "va", units="kt")
wspd = getvar(ncfile, "wspd_wdir", units="kts")[0,:]
p just have 3 dims
<xarray.DataArray 'pressure' (bottom_top: 23, south_north: 74, west_east: 87)>
wher I use
ncfiles=MFDataset("wrfout_d01_2019-03-22_00:00:00")
p = getvar(ncfiles, "pressure")
z = getvar(ncfiles, "z", units="dm")
ua = getvar(ncfiles, "ua", units="kt")
va = getvar(ncfiles, "va", units="kt")
wspd = getvar(ncfiles, "wspd_wdir", units="kts")[0,:]
RuntimeError: NetCDF: Not a valid ID
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Research direction
Reproduce the reported case using Dataset and MFDataset with the shown getvar calls, then trace where the NetCDF "Not a valid ID" error is triggered. Check how multi-time files and the pressure, height, wind, and wind-speed variables are handled; done means identifying a confirmed cause and a tested resolution.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- data
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100