National Facilities
3rd Cloud Water Collector Intercomparison Campaign (CCWaC)
02
May
/
02
May
The third cloud water collector intercomparison campaign (CCWaC INT III) will take place between 05. - 23. August at the Sonnblick Observatory (SBO). Different types and designs of collectors from several NFs will be installed on the measurement plattform of the SBO (>3100 m) to simultaneously collect cloud water. All samples will be analyzed after the campaign for their chemical composition in the CCWaC laboratories at TROPOS to determine the comparability of the different collector designs. Results from this campaign will be discussed in future CCWaC Workshops and the findings will be considered to update the measurent guidelines for ACTRIS cloud water chemical composition variables. The campaign is combined with ECCINTs 2nd Cloud In Situ Intercomparison campaign for LWC.
contacts:
kaefer@tropos.de
dominik@tropos.de
Open Call for ACTRIS intercomparison campaign of chemical ionization mass spectrometry
02
May
/
02
May
The Call for ACTRIS intercomparison campaign of chemical ionization mass spectrometry to measure ambient condensable vapours in summer 2024 is now open.
2nd Cloud In Situ Intercomparison
02
May
/
02
May
The 2nd Cloud In Situ Intercomparison will take place from 5.8.-27.9.2024 at Sonnblick Observatory (Austria)
Initial information about time schedules can be found here.
Details will be discussed in the upcoming ECCINT workshop at the end of February!
contact:
elke.ludewig@geosphere.at
christian.maier@geosphere.at
NO/NO2 Intercomparison from 19 June to 30 June 2023 in Jülich
02
May
/
02
May
JUNOx23 NO/NO2 Intercomparison campaign
Our goal is to improve the quality of NOx measurements through standardized calibration procedures and experiments to investigate the effects of interfering factors such as water vapor, ozone (O3), nitrous acid (HONO), and glyoxal (C2H2O2). The intercomparison campaign is conducted in the summer of 2023 (June 19-June 30, 2023) at the SAPHIR atmospheric simulation chamber and at the JULIAC tower at the Institute for Energy and Climate Research (IEK-8 Troposphere) of Forschungszentrum Jülich. The interlaboratory test campaign is part of the QA/QC measures for the ACTRIS national facilitities.
Setup
The devices are installed in containers under the SAPHIR atmosphere simulation chamber. They are connected to a common sampling line that can be used to take air samples from the top of the JULIAC tower or from a calibration system.
Addition of Trace gases
Standard gases and interfering gases are added to the common inlet line from a homemade calibrator. The air can be spiked with hydrocarbons or compounds such as formaldehyde and glyoxal from prepared cylinders or a thermobalance.
Participants
In total there are 15 partners with 36 instruments.
- FZ Jülich, Germany, (CiGas)
-
CLD (Chemiluminescence Detector)
5 ICAD (Iterative cavity-enhanced DOAS)
TDL (Tunable Diode Laser)
- Airyx, Germany
-
ICAD (Iterative cavity-enhanced DOAS)
- Federal Highway Resaerch Institute, BAST, Germany
-
Photoaccustic Sensors
-
CNR - ISAC, Monte Cimone, Italy
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2 CLD (Chemiluminescence Detector)
- University College Cork, Ireland
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CEAS (Incoherent Broadband Cavity-Enhanced Absorption Spectrometer)
- German Weather Sevice, Germany (CiGas)
-
3 CLD (Chemiluminescence Detector)
2 CAPS (Cavity attenuated phase shift spectroscopy)
- University of Frankfurt, Germany
-
CLD (Chemiluminescence Detector)
- CNRS-Orléans, France
-
CLD (Chemiluminescence Detector)
2 CAPS (Cavity attenuated phase shift spectroscopy)
- University of Iasi, Romania
-
CLD (Chemiluminescence Detector)
- IMT, France (CiGas)
-
2 CLDs (Chemiluminescence Detector)
CAPS (Cavity attenuated phase shift spectroscopy)
- University of Leicester, UK
-
CAPS (Cavity attenuated phase shift spectroscopy)
- University of Nottingham, UK
-
ICAD (Iterative cavity-enhanced DOAS)
- University of Wuppertal, Germany
-
CLD (Chemiluminescence Detector)
LOPAP (Long-Path-Absorption-Photometer)
- TROPOS, Germany
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3 CLD (Chemiluminescence Detector)
CAPS (Cavity attenuated phase shift spectroscopy)
- University of York, UK
-
ICAD (Iterative cavity-enhanced DOAS)
Experiments
The setup of the instruments started June 12, 2023.
- Comparison of gas standards and calibration setups
- Test for humidity,formaldehyde, HONO and ozone interferences
- Ambient measurements from the JULIAC-tower
- Discussion of intercomparison results on a daily basis
- Instrument training
Please contact:
Robert Wegener, Forschungszentrum Jülich, r.wegener@fz-juelich.de
Max Gerrit Adam, Forschungszentrum Jülich, m.adam@fz-juelich.de