Today, our new film on the Davos station has been released. A short portrait introduces the station and the work we do there, for CO2 flux measurements since 25 years! Watch the video and read more about it here.


On 13 April, the Federal Councils submitted the Dispatch on Switzerland's access to six European research infrastructure networks to Parliament. As part of this, Switzerland seeks parliamentary permission to change its status from ICOS Observer to Member. A full membership would mean e.g. voting rights in the General Assembly, the highest decision-making body of ICOS, where Switzerland currently only acts as an Observer. Read more here.


The revised version of the ICOS Handbook is now available. Have a look at here!

The ICOS Handbook helps to understand how ICOS operates and how it is organized. It also explains the role of the Thematic Centres and National Networks and describes the technical specifications of stations and the process of becoming a ICOS Member. It gives a comprehensive overview of ICOS both for the people already within our community as well as for the countries considering membership.

The revised edition includes new ICOS member countries, Spain and Hungary, as well as prospective ICOS countries, Poland and Romania.


On 24 March, Martin Steinbacher (Empa) gave a talk at the D-A-CH MeteorologieTagung 2022.

One of the DACH-2022 sessions was specifically dedicated to research infrastructures in weather and climate research. There, Martin's talk, entitled "Operationelle in-situ Messungen von Luftschadstoffen und Klimagasen im nationalen und internationalen Kontext" presented the synergies and challenges when long-term atmospheric observations serve different programmes and research infrastructures on national and international level.



On 9 and 10 March, Martin Steinbacher (Empa) taught at World Meteorological Organizations's Global Atmosphere Watch Training and Education Centre (GAWTEC) in Grainau, Germany. GAWTEC provides scientific guidance and instructions to station operators of atmospheric monitoring stations globally. The 38th edition of a GAWTEC training, the first training session after a two and a half year break due to the pandemic, was dedicated to the measurements of atmospheric greenhouse gases. Participants came from Europe, Africa, South America and Asia. Martin's lectures were entitled "non-CO2 Greenhouse Gases in the Atmosphere – Long-term Observations, Measurement Techniques, Operation & Maintenance, Quality Control".


Picture credits: Sonja Böll, GAWTEC



There is a bunch of interesting ICOS Cities Talks webinars coming up. These talks are organized in the framework of the ICOS Cities project, where ICOS-CH is actively engaged; Zurich is one of the pilot cities, Basel is part of the extended ICOS Cities network.


The 5th ICOS Science Conference will run from 13-15 September 2022. It will be organised in Utrecht (TivoliVredenburg event venue) and online around the world. The overall, overarching theme of the conference is "Tracking progress to carbon neutrality”. Have a look at the different session themes on the conference website. The abstract submission deadline is 11 April 2022 at 11.00am CET.


On the occasion of the 25 anniversary of the eddy covariance measurements in Davos, our research station was visited by a film crew. The camera equipment was reduced to the minimum in order to carry it all to the station. Despite temperatures around -10 degrees Celsius, freezing fingers and batteries running much shorter than usual, it was a great experience for all of us.




Mana Gharun (researcher at ETH Zurich) cordially invites you to submit abstracts to the EGU session “New methods for bridging understanding of carbon and water fluxes from leaf to continents”.

The abstract submission is open now and deadline is 12 January. EGU 2022 is planned onsite as well as online.




A recently published study lead by Sophia Etzold (ICOS-CH scientist at WSL) shows that only a small part of the vegetation period is used for annual growth, hence trees only grow on a few days per year. Daily growth data measured by dendrometers within the TreeNet network were used. Read more in the WSL News!

Etzold S, Sterck F, Bose AK, Braun S, Buchmann N, Eugster W, Gessler A, Kahmen A, Peters RL, Vitasse Y, Walthert L, Ziemińska K, Zweifel R (2021) Number of growth days and not length of the growth period determines radial stem growth of temperate trees. Ecology Letters. doi: 10.1111/ele.13933

(Picture: R. Zweifel)