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I am working with QGIS and I would like to rasterize mesh data (ERA5 monthly averaged data on temperature) from 1998 to 2018 in order to perform zonal statistics. However, given the huge number of files that I would generate, I was looking for a more efficient way to rasterize these mesh data than the manual rasterize function provided by QGIS.

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  • Search for Batch processing
    – BERA
    Feb 4, 2022 at 10:35
  • I thought about that approach, my only concern was about the time-consuming task to fulfill manually the "time" section for each monthly file. Feb 4, 2022 at 11:02
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    How are you converting one file, some processing tool?
    – BERA
    Feb 4, 2022 at 11:03

1 Answer 1

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Assuming you have GRIB format data-files, you could extract the relevant info using the ecCodes tools

Then follow this guide to pull out CSV data

https://confluence.ecmwf.int/display/CKB/How+to+convert+GRIB+to+CSV

CSV "X,Y,Z" data can then (if needed) be converted to TIFF image data, which might be more useful, depending on what analysis tools you're using

https://gdal.org/programs/gdal_grid.html

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