Gpt Mosaic of multiple input files

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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>integer</spectralBandIndex>
            <spectralWavelength>float</spectralWavelength>
            <spectralBandwidth>float</spectralBandwidth>
            <scalingOffset>double</scalingOffset>
            <scalingFactor>double</scalingFactor>
          </targetBand>
          <.../>
        </targetBands>

And I think the jp2 images don’t have wavelength information attached. At least I don’t see it when I open the S2 jp2 tile images from the official ESA data. This information is only available when you use the complete product, but get’s lost during mosaic processing. I don’t know the Amazon products.