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Unsigned byte data should be written with unsigned data type #3

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marpet opened this issue Sep 15, 2017 · 1 comment

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marpet commented Sep 15, 2017 •

edited

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Files are written in NetCDF4 and this version supports unsigned data types.
Beside using the _Unsigned attribute the data should be written as unsigned data.
http://www.unidata.ucar.edu/software/netcdf/docs/BestPractices.html#bp_Unsigned-Data

The current netcdf library version (4.3.22) we use does not allow it.
Probably we need to update to 4.6 or higher.

Member

forman commented Sep 19, 2017

To my understanding, the _Unsigned attribute is only used for (NetCDF3) signed integer data types.

forman mentioned this issue

Land Cover CCI unsigned data is signed CCI-Tools/cate#371

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marpet added a commit that referenced this issue


          script to fix issues (#3, #6) in LC-CCI data

fd80460

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