Mosaic operator with subsequent BandMath operator to readd meta information to the bands

[marpet]

Oh yes, with BandMaths this is possible. Sorry I forgot. I have suggested it some time ago .

Gpt Mosaic of multiple input files

You can add the wavelength in the description of the target bands in the BandMaths operator. The operator supports multiple target bands. <targetBands> <targetBand> <name>string</name> <type>string</type> <expression>string</expression> <description>string</description> <unit>string</unit> <validExpression>string</validExpression> <noDataValue>double</noDataValue> <spectralBandIndex>…

You don’t need to specify all bands, only the wavelength bands. In a subsequent step you can use the Merge operator. There you can merge your original mosaic (exclude the wavelength bands) with the BandMaths output.

But it might be simpler if copy all bands in the BandMaths operation.