Unexpected type changes

[danielfromearth]

Summary

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Alex discovered an unexpected change of an original file's data type after being consumed by l2ss-py.

Description

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When using the subsetter to retrieve parts of granules from TEMPO_HCHO_L2_V02_20240801* scan 8 (S008), the "main_data_quality_flag" was converted to 32-bit float:

whereas in the original file it is a 16-bit integer:

Impact

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Although plotting code was able to work with the output, this may either be an issue or an undocumented aspect. Also, for this case, processes dealing with the converted file are then using more memory than needed.

Desired change

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The two pathways that come to mind are either:

• L2SS can improve the documentation of this behavior
• L2SS can ensure data types stay the same