To validate the EUSTACE globally gridded clear-sky daily air temperature estimates from satellites and the the EUSTACE global daily air temperature product a set of match-up datasets containing in-situ reference and EUSTACE temperature estimates have been produced. The matchups were produced separately for each test-reference dataset pairing. Therefore each file contains only matchups of one EUSTACE product to one in situ dataset.

The matchup process varied between platforms and as a consequence the filename format, file format and variables contained within each file depend on the matched datasets.