Almost 135 different atmospheric variables are included in ACTRIS and about 65 sites are active. The measurements are done with 25 different methodologies with time resolution ranging from seconds to 1 week. The ACTRIS data management plan describes the data sets ACTRIS generates, how the data is made available, and the data repositories. The document also includes a list with all ACTRIS atmospheric variables together with recommended methodology.
ACTRIS Data Policy: DataPolicy.pdf
Data Center Website: actris.nilu.no