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What is the difference between the images created after importing with USGS Landsat 8 dialog, in particular, the suffixes _msi and _msitir? I understand that they stand for multispectral image and multispectral image with thermal image, but why are there 2 different versions? What uses are there for each one of them that makes it important to have one file with TIR and the other without?
Thanks
As you can see below, Landsat 8 carries two sensors: OLI (Operational Land Imager) and TIRS (Thermal Infra-Red Scanner). The latter features a resolution of 100m instead of the 30m (15m panchromatic) of OLI. I assume that there are two images because of the difference in resolutions.
Source: landsat.gsfc.nasa.gov
Source: USGS
