What is ACTRIS?

ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instrument calibration centres, and a data centre. ACTRIS serves a vast community of users working on atmospheric research, climate and Earth system and air quality models, satellite retrievals, weather analysis and forecast systems by offering high quality data and research infrastructure services for atmospheric aerosols, clouds, and trace gases. Read more...


ACTRIS on ESFRI roadmap

ACTRIS-2 IA in H2020 (2015-2019)

ACTRIS I3 in FP7 (2011-2015)

ACTRIS PPP in H2020 (2016-2019)


ACTRIS PPP meeting and Mid-Term Review
25 June 2018

The ACTRIS PPP meeting and Mid-Term Review will take place in Prague, Chech Republic, in 17-21.9.2018.

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Finland to host ACTRIS ERIC Statutory seat
13 June 2018

On 8th of June, 2018 the Interim ACTRIS Council (IAC) approved the Finnish offer to host ACTRIS ERIC (European Research Infrastructure Consortium). 



Call for Central Facility hosts
11 June 2018

The call for ACTRIS Central Facility hosts is now open, and will close 8.8.2018.

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Cloud radar calibration experiment at the SIRTA Observatory.
24 May 2018
The Cloud radar calibration experiment conducted by ACTRIS CCRES started May 22 at the SIRTA Observatory in Palaiseau.

A UAV will be used to carry a Cloud radar calibration target and position the target at 200 m altitude above the Cloud radars participating in the campaign. Read more...


ACTRIS VOC Side by Side Intercomparison 2018
24 May 2018

The ACTRIS VOC Side-by-Side intercomparison will take place at the Meteorological Observatory Hohenpeissenberg from June 18th to June 29th, 2018. Focus will be on the measurements of oVOCs and bVOCs. Read more...



ACTRIS PPP meeting and MTR
September 17-21, 2018 | Prague, Czech Republic

Final WP3 Technical meeting
October 16-18, 2018 | Lille, France

5th IAC Meeting 2018
October 25-26, 2018 | Lyon, France

Final WP2 Technical meeting
November 19-23, 2018 | Hatfield, UK

6th IAC Meeting 2018
December 11-12 | tbc

ACTRIS-2 Final Event
April 01-05, 2019 | Darmstadt, Germany

See all future events