Event

CARS-ARES Webinar

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Time: 14:00 - 16:00 CEST

Topics	Presenter
Lidar QA/QC	Volker Freudenthaler (LMU)

The link to the online webinar will be provided via email, as well as the link to the documentation. If you want to be included in the aerosol remote sensing mailing list, please contact Lucia Mona.

NO/NO2 Intercomparison from 19 June to 30 June 2023 in Jülich

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JUNOx23 NO/NO₂ Intercomparison campaign

Our goal is to improve the quality of NO_x 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

2 CLD (Chemiluminescence Detector)

University College Cork, Ireland

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

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

 

ACTRIS Cloud In Situ: Center for Cloud Ice Nucleation Workshop

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The Center for Cloud Ice Nucleation (CCIce) of the Topical Centre for Cloud In Situ Measurements (CIS)  organizes a workshop for Ice Nucleating Particle (INP) measurements within ACTRIS. The workshop will takes place virtually in the morning hours of the 15^th and 16^th November 2022.

Any members of the CCIce and CIS community are invited to participate. Please contact Larissa Lacher (larissa.lacher@kit.edu) or Kristina Höhler (kristina.hoehler@kit.edu) for registration. 

Focus of the workshop will be:

• Update on the technical requirements for the NFs
• PINE, HINC-auto, and INSEKT
  • General operation and experiences from long-term operation
  • Standard operation procedures
  • Data workflow

ACTRIS Cloud Remote Sensing Workshop Nov. 2022

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ACTRIS Centre for Cloud Remote Sensing (CCRES) organized a workshop on 14 and 15 November 2022. The workshop was held physically at the SIRTA Atmospheric Observatory, Ecole polytechnique, Palaiseau, France.

Principal Investigators of the National Facilities were invited to participate, as well as any member of the cloud remote sensing community.  

Here are some of the sessions:

• New calibration transfer methodology for different radar frequencies, Felipe Toledo
• Status update of the Cloudnet data portal, Simo Tukiainen
• Boundary layer characterization based on stability and turbulence measurements, Andrea Burgos-Cuevas, Tobias Marke
• Operational 3D-wind retrievals from scanning Doppler lidar and Doppler cloud radar, Bernhard Pospichal
• Overview and plans towards implementation of MWR processing, Tobias Marke

A hands-on training was proposed on Doppler cloud radar, weather station and disdrometers. It was provided by Jean-Charles Dupont, Lukas Pfitzenmaier, Gionata Ghiggi, Marc Schleiss, Marc-Antoine Drouin and Antoine Gibek. Here are the themes that were addressed during this training:

• The requirements on the set-up and acquisition,
• Raw data formatting into netcdf,
• Z-DD processing and Doppler cloud radar calibration constant monitoring,
• Quicklooks, alerts and flag for NF. 

Looking forward to seeing you there!

 

Agenda

 

Presentations

First reference lidar intercomparison at CARS

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The first intercomparison campaign of reference high-power lidar systems operated by the CARS Units in Romania and Germany is organized between September 12-30, 2022 at MARS (Magurele centre for Atmosphere and Radiation Studies).

Experts from the Ludwig Maximillian University in Munich (Dr. Volker Freudenthaler, Dr. Nikos Siomos) with the POLIS reference lidar are joining the specialists from Romania (Dr. Livio Belegante, Dr. Victor Nicolae, Drd. Razvan Pirloaga) with the RALI and ALPHA reference lidars in order to measure side-by-side and assess the performances of each of the systems. Moreover, experts from the University of Warsaw (Dr. Iwona Stachlewska, Afwan Haviz) join the campaign starting 19 September with the European Space Agency's EMORAL reference system.

Quality Assurance tests are performed before sunrise and at noon, weather permitting. The data is analysed in parallel by the experts (manual analysis) and with the automatic software newly developed at CARS. The goal is to optimize the automatic procedure for being further implemented at all lidar stations.

Videos from the campaign

• Installation of the POLIS reference lidar
• Setting up the ALPHA reference lidar

CARS-ARES Webinar

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Time: 14:00 - 16:00 CEST

Topics	Presenter
1. OBIWAN = the software tool for automatic submission to, and retrieaval of SCC products (Licel) 2. ATLAS = the software tool for QA/QC tests analysis – scope and structure	1. Radu Cristea (INOE) 2. Nikos Siomos (LMU)

The link to the online webinar will be provided via email. If you want to be included in the aerosol remote sensing mailing list, please contact Lucia Mona.

Documentation available here. 

ACTRIS Aerosol Remote Sensing workshop 2022

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ACTRIS centre for Aerosol Remote Sensing (CARS) and the Aerosol Remote Sensing unit of the ACTRIS Data Centre (ARES) organizes a joint workshop on 27 October 2022, as part of the ACTRIS Week. The workshop is organized in hybrid format, however we encourage the community to join us physically in Prague.

The focus of the workshop is to present the new developments at CARS and ARES, and to discuss the current status of the aerosol remote sensing instruments and data products, in view of the upcoming NF labeling. PIs of the future aerosol remote sensing National Facilities are invited to participate, together with their teams, as well as any member of the aerosol remote sensing community who is interested in the topics. Please register via the ACTRIS Week registration platform.

Sessions

Start time	End time	Subject
09:00	09:30	Aerosol remote sensing National Facilities labeling
09:30	11:00	Automatic sun/sky/lunar photometer: new developments
11:00	12:30	Aerosol high-power lidar: new developments
13:30	14:45	Aerosol high-power lidar: QA/QC tests
14:30	16:00	Aerosol remote sensing data products: new developments
16:00	16:45	Aerosol remote sensing data products: plans
16:45	17:00	Sum-up and next actions

Detailed agenda accessible here

The 8th Aerosol In-Situ Community Workshop

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The 8^th Aerosol In-Situ Community Workshop arranged by ECAC, June 3, 2022

Time: 9:00 - 11:30 am (CEST)

Location: online (Zoom, Meeting-ID: 823 2233 5563, Code: 813273), link

Agenda

• 09:00 - 09:05 Welcome and Introduction (A. Wiedensohler, JP Putaud)
• 09:05 - 09:20 Experiences of the 1st labelling visits + possible audits in 2022 (A. Wiedensohler)
• 09:20 - 09:50 General rules for sampling lines (A. Wiedensohler, J. Ondracek, S. Crumeyrolle)
• 09:50 - 10:05 Aerosol drying (E. Asmi)
• 10:05 - 10:20 Online chemical measurements (JP Putaud, P. Vodicka, J. Ondracek)
• 10:20 - 10:35 Discussion on EBAS data submission for CCNC (M. Fiebig, S. Henning)
• 10:35 - 11:30 Question and answer session

CARS-ARES Webinar

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Time: 14:00 - 16:00 CEST. 

Topics	Presenter
1. Some suggestions on SCC interface & more 2. Automatic data management sustained by ACTRIS-FR & AERIS : implementation for french NFs	1. Alejandro Rodríguez (UPC) 2. C. Pietras, N. Pascal, C. Tétard, JF. Ribaud (ARES)

The link to the online webinar is provided via email. If you want to be included in the aerosol remote sensing mailing list, please contact Lucia Mona.

Documentation available here.

CARS-ARES Webinar

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Time: 14:00 - 16:00 CET

Topics	Presenter
1. Moving a lidar in a new infrastructure: challenge and relevant steps	Chris Pietras (IPSL)

 

Documentation is available here.