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I am currently working with grib2 files from the RDPA dataset in QGIS.

When one of these grib2 files is imported, there is a raster layer and a mesh layer that is generated. I am struggling to understand how QGIS is creating the mesh layer from the bands in the grib2 file. (The image below shows the two layers created when the grb is imported).

The Raster and Vector Layers included from the Grib2 file

My goal is to use the total prepitation data that is put into the mesh layer, but I need it in a raster.

When I try using the raster calculator, I am not sure which bands to select from the grib file in order to generate the correct raster (somehow the generated mesh has the correct precipitation values, but its a mesh file, not the required raster). In the below image, I would like to use the band data (red) to create a raster that contains the data from the mesh file (blue).

Raster calculator options

Any advice on how I can get the precipitation data that is already in the mesh component of the imported grib into a new raster layer?

1 Answer 1

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You get the same data in two diffèrent format, mesh and raster.

the Raster Band 1 contain "Total precipitation [kg/(m^2)]" and Raster Band 2 contain "(prodType 0, cat 1, subcat193) [-]" from the mesh

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