Five different auxiliary files are associated with LST processing:

• The SLSTR L2 LST Coefficients data file contains the coefficients and switches required to generate land surface temperature retrievals.
• The SLSTR L2 LST Biome data file is a reduced-resolution (~1 km) version of the Globcover Land Cover product. The file is in GEOTIFF tiled format containing a two-dimensional array, using one byte per pixel, in a regular equidistant latitude/longitude projection. TIFF packbits compression is used to reduce the size of the file. Each pixel contains one of the 24 codes corresponding to the "LST surface classification codes".
• The SLSTR L2 LST Vegetation Fraction data file contains monthly vegetation fraction climatology. Climatologies for one year consist of 14 individual datasets (one for each of the twelve months plus two "end-stops" for interpolations near the year boundaries). The file is in GEOTIFF tiled format containing a two-dimensional array, using two bytes per pixel, in a regular equidistant latitude/longitude projection. TIFF packbits compression is used to reduce the size of the file. Each pixel contains one of the 24 codes corresponding to the "LST surface classification codes".
• The LST water vapour auxiliary datasets file contains monthly total column water vapour climatology. Climatologies for one year of operations will consist of 14 individual datasets (one for each of the twelve months plus two "end-stops" for interpolations near the year boundaries). Each field will be a two-dimensional array of cells on a regular latitude/longitude grid on the WGS 84 geoid.
• The LST error auxiliary dataset contains an LUT of the estimated algorithmic error for a single retrieved LST pixel.