The ACTRIS Data portal allows you to search, analyse, and download atmospheric composition data from a multitude of data archives. The data results from the activities of the ACTRIS infrastructure network complemented with data from other relevant networks, and gives free access to atmospheric observational data to analyze atmospheric composition.

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: