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Aerosol In-Situ Community Meeting

Category Meeting Author CAIS-ECAC Date 08 Mar 2026 Read time -
Event:
Invitation to Aerosol In-Situ Community Meeting WCCAP
Topic:
09:00-09:05 Welcome & Introduction
09:05-09:35 Harmonized procedure for data correction from nephelometers and filter based absorption photometers
09:35-10:05 Quality control for nephelometers – real user example
10:05-10:10 Announcement of the upcoming OGTAC-CC community meeting in April and the next hands-on training workshop in May 2026
10:10-11:00 Questions and Discussion
Date:
12 March 2026
Time:
9 - 11 a.m. CET
Info:
link is provided in the community
Location:
online meeting
The course will be held for 5 days from Monday 18th to Friday 22nd of May 2026 at TROPOS ACD in Leipzig. The number of participants is limited to 8. The course is free of charge. Participants have to cover only their travel and accommodation costs.

Topic:
Theory and practice – Offline chromatographic (LC-MS and GC-MS) determination of organic tracer compounds and organic and elemental carbon (OC/EC) measurements in particulate matter collected on filters.

Subscription via email to ogtac-cc[at]tropos.de (registration deadline May 1st)
For any questions don´t hesitate to contact Dr. Falk Mothes (mothes[at]tropos.de).

Invitation to the 2nd OGTAC-CC community meeting

Category Meeting Author OGTAC-CC Date 08 Mar 2026 Read time -
Event:
Invitation to the 2nd OGTAC-CC community meeting (online)
Topic:
Ongoing and planned activities of the calibration centre for particulate organics
Status of the technical requirements and measurement guidelines
Offline data workflow
Past, current and planned inter-laboratory comparisons
Status labelling
Date:
28 April, 2026
Time:
1-4 p.m. CEST
Info:
Registration via brief notice to mothes[at]tropos.de
Location:
online meeting
Head of the European Center for Aerosol Calibration and Characterization (CAIS-ECAC) and Researcher in Atmospheric Microphysics

The Leibniz Institute for Tropospheric Research (TROPOS) is a research institute of the Leibniz Association and an internationally renowned institute in the field of aerosol and cloud research. ACTRIS (Aerosol, Clouds and Trace Gases Research Infrastructure, www.actris.eu) is a European research infrastructure for quality-assured observation of aerosols, clouds, and short-lived trace gases. ACTRIS serves to investigate the complex interactions between gases, aerosols and clouds, especially in the areas of climate and air quality.

We are looking for an outstanding personality in the field of aerosol research with in-depth experience in measurement technology and quality assurance for the Department of Atmospheric Microphysics (AMP).
In addition to research activities, the position encompasses the lead of CAIS-ECAC. It is important to maintain close contact with all institutions within CAIS-ECAC and to work together to shape the future of ACTRIS and CAIS-ECAC. An enthusiasm for international cooperation and a vision for further development are just as important as technical expertise and experience in applying for international third-party funding in order to continue and strengthen the consortium through new European applications.
ABOUT US
CONTACT
OFFICE HOURS
In the frame of the European Research Infrastructure ACTRIS-ERIC, the CAIS-ECAC is one of the Central Facilities for the ACTRIS National Facilities and external users worldwide. CAIS-ECAC’s mission is to offer operational support for quality assured and controlled physical and chemical aerosol in situ measurements & sampling, to conduct traceable instrument calibration, and to perform laboratory analysis of aerosol samples.
CAIS-ECAC

director: Alfred Wiedensohler
office: Stephanie Schüttauf

Leibniz Institute for Tropospheric Research
Permoserstraße 15
04318 Leipzig
e-mail: wccap[@]tropos.de
Monday, Tuesday, Wednesday, Thursday
9.00am – 12.00pm, 1.00pm – 4.00pm

Friday
9.00am – 12.00pm, 1.00pm – 2.00pm

Saturday , Sunday
closed

Center for Aerosol In-Situ - European Center for Aerosol Caliibration and Characterization
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