Creating a multi-band GeoTIFF

In this exercise you will learn how to create composites of several bands of satellite data.

Multiband layers

To create a multiband image:

1. Load the different satellite band layers into QGIS. For exercise purposes, you can use the landsat-bands from the directory geodata/raster/landsat/ in the course data; the layer names start with sub, the band number is indicated by B and a one- or two-digit number, e.g. B1 or B10 for the first band and B1 or B20 for the second.
2. If the processing toolbox is not visible in you QGIS window yet, select Processing --> Toolbox.
3. In the processing toolbar, type merge into the search field to find the merge tool and open it (figure A).
4. Click the upper ... button to select the layers you want to combine.

Figure A: The merge dialogue in QGIS 2.0