These series have been quality controlled in the framework of the INDECIS project using the INQC software, created by Enric Aguilar, Center for Climate Change, C3, Geography Department, Universitat Rovira i Virgili, Tarragona, Spain
Only PUBLIC series listed in the file permissions.txt as such, are intended for download and usasge.
In addition to the files permissions.txt and this readme.txt, you can find 3 folders:

QCConsolidated: files with identical names to those at the ECA&D website and with identical format (check https://www.ecad.eu for details). The QC field includes additional codes: 

0: the observations passed QC
1: the observation is erroneous
2: the observations is strongly suspect
3: the obsercation is suspect
4: the observations failed a collective QC test (e.g., data strikes)

QC

full report of all the tests passed by each observation, presented in a spreadsheet-like format.  Rows are observations, columns are QC tests applied. A “1” in any column indicates that the this observation did not pass this particular test. 

QCSummary 

statistical summary of the QC proces. 

For further details, please check the INQC documentation at: 

https://github.com/INDECIS-Project/INQC