Two facilities of the Ruisdael Observatory for atmospheric research participate in the ATMO-ACCESS project. These are the Cabauw Experimental Site for Atmospheric Research and the Isotope Laboratory.

The first call for Trans-National Access (TNA) in the ATMO-ACCESS project will open on Thursday 28th October 2021 and will remain open until Friday 28th January 2022.

The call will be addressed to researchers or research teams from outside the Netherlands. If you are interested to propose a field experiment (physical or remote) at the Cabauw site or want to get samples analyzed in the Isotope Laboratory, and you want to discuss particulars of access and practicalities before submitting the official TNA application, please contact us (

Examples of broad scientific topics (but not limited to) to be proposed can be related to:

  • In-situ, column integrated, vertical profiling and spatial atmospheric observations;
  • Cloud radar calibration;
  • Trace gas remote sensing intercomparison;
  • Isotope analysis.

A description of services provided by Cabauw Experimental Site for Atmospheric Research can be found here. A description of services provided by the Isotope Laboratory can be found here.

Potential interested users are requested to write a short scientific project to be submitted to ATMO-ACCESS for an internal review. All TNA documents and information about access to services can be found on the ATMO-ACCESS website along with guidelines and forms for applicants.

Accesses to the Cabauw facility can be physical or remote. Remote access is possible to the services provided by the Isotope Laboratory.

By physical access, foreign research teams physically access the Cabauw Experimental Site for Atmospheric Research (or a single component of the facility) for performing the proposed experiment.

By a remote access, foreign research teams can remotely access the instrumentations they installed at the facility (or at a single component of the facility) as well as the datasets produced by Cabauw and Isolab instrumentation.

Incoming proposals will be checked for formal compliance with the EU regulations, logistical and technical feasibility and scientific relevance.

TNA providers also evaluate the feasibility of contributing in part to users’ travel and subsistence (T&S) expenses, based on the users’ cost estimates and the available budget allocated specifically for this. The opportunity/feasibility of supporting part of the user’s T&S costs and the amount of the contribution will be decided on a case-by-case basis.

In view of the visit and during the access, users can count on:

  • on-site assistance by the TNA provider, which includes the logistical, technological and scientific support and the specific training usually provided to external researchers using the infrastructure/installation;
  • limited financial support for travel and subsistence, which is available to some extent upon request to the TNA provider. The amount and conditions of the financial contribution will be established by mutual agreement between the user and the TNA provider at the moment of arranging the visit. The TNA provider manages the refund according to its internal rules.

Do not hesitate to contact us for getting more information about this great opportunity and about the services offered at the Ruisdael facilities in the context of ATMO-ACCESS.