Top downloads during week:     GAW-WDCA (49 files)               ACTRIS-INSITU (49 files)               EARLINET (28 files)               EUSAAR (11 files)               

Contact information

The ACTRIS Data Centre is developed and maintained by NILU - Norwegian Institute for Air Research.

Suggestion for further development and feedback of the ACTRIS Data portal and also can be registered at this web based interface:

For other questions and comments about this site, please contact Cathrine Lund Myhre (, Markus Fiebig ( or Kjetil Tørseth (