I have one raster layer containing a band that indicates the land type of a random sample of pixels and another raster containing NDVI, VV, and VH values. The first raster has fewer pixels than the second, hence there are areas where the single bands of this layer would show "no data".
How would I go about transferring band values from pixels from the second raster to the first where there are actually pixels in the first raster (the single band has a value)?
A similar question to mine, Extracting value from one raster to another raster using QGIS, suggested using the raster calculator with the expression "layer1"*"layer2", but this only returns one band that seems to have just multiplied the two bands from the input rasters. I am a beginner when it comes to using QGIS, and especially to using the raster calculator, hence I am having trouble finding a solution to this.