RuntimeError: NetCDF: Not a valid ID ONLY for FCI data

[akasom89]

Hi,

I have several scripts that have been working well with various geostationary satellites. However, after adding FCI data (which became operational and accessible to all users 10 days ago), I encountered a RuntimeError: NetCDF: Not a valid ID.

Does FCI data need to be read or processed in a way that is different from other satellites? Are there any special considerations for its usage?

I could not find any specific/different instruction for FCI in documentation.

[strandgren]

Hi @akasom89, are you resampling the data? In that case you cannot overwrite the Scene object and need to do either
scn_r = scn.resample() or

scn_org = scn
scn = scn.resample()

where the latter lets you preserve the variable name.

You can find more details in #1861

[akasom89]

Thanks @strandgren

Yes. I am using a new variable name.

My function ends in a similar way to below :

scn2 = scn.resample()
scn2['product'] = product_dataarray
return scn2

[akasom89]

Based on #1861 (comment) :
1-file handlers are in scn and when the function ends, this is garbage cleaned?
2-this is the case only with FCI? I mean non of other even still netcdf formatted images (like goes and gk2a) does not have the same mechanism?

[strandgren]

@akasom89 So even if you use a different variable name, you get this error?

As mentioned in #1861 (comment) it's not an issue directly related to FCI, but rather the NetCDF4FileHandler which is used to read the FCI data.

[akasom89]

Yes @strandgren. I get this error even when i am using a different variable name.

I thought based on what @gerritholl mentioned, I should find a way to return both scn and scn2 simultaneously, but i have not find any idea since now.