Aerosol, Clouds and Trace Gases Research Infrastructure (ACTRIS)


Duration: Longterm observations spanning multiple decades
Funding: various (see below)
Contact: Benjamin Brem benjamin.brem@psi.ch and Martin Gysel-Beer, martin.gysel@psi.ch

Table of Contents

Observation network of the Aerosol, Clouds and Trace Gases Research Infrastructure (ACTRIS). Source: www.actris.eu

The Aerosol, Clouds and Trace Gases Research Infrastructure (ACTRIS) is the pan-European research infrastructure producing high-quality data and information on short-lived atmospheric constituents and on the processes leading to the variability of these constituents in natural and controlled atmospheres.

ACTRIS Science: https://www.youtube.com/watch?v=jwpc_aZJdAU

The Aerosols, Clouds and Trace gases Research Infrastructure (ACTRIS) is a distributed infrastructure dedicated to high-quality observation of aerosols, clouds, trace gases and exploration of their interactions. It will deliver precision data, services and procedures regarding the 4D variability of clouds, short-lived atmospheric species and the physical, optical and chemical properties of aerosols to improve the current capacity to analyse, understand and predict past, current and future evolution of the atmospheric environment. ACTRIS serves a vast community of users working on observations, experiments, models, satellite data, analysis and predicting systems. It offers access to advanced technological platforms for exploration of the relevant atmospheric processes in the fields of climate change and air quality.

Included in ESFRI Roadmap in 2016, ACTRIS achieved the ESFRI landmark status in 2021 and was formally established as a European Research Infrastructure Consortium (ACTRIS ERIC) in 2023.

ACTRIS ERIC web page: https://www.actris.eu/
ACTRIS Switzerland web page:
https://www.actris.ch/
ESFRI project and landmarks: http://roadmap2018.esfri.eu/projects-and-landmarks/browse-the-catalogue/actris/

ACTRIS-IMP project

Duration: 2020-2023
Funding: European Commission under Horizon 2020 – Research and Innovation Framework Programme, H2020-INFRADEV-2019-2, Grant Agreement number: 871115
Contact: Martin Gysel-Beer (martin.gysel@psi.ch)

The transition of ACTRIS towards an ERIC and implementation of the ERIC is supported through the ACTRIS-IMP project. ACTRIS-IMP further supported pilot phase transnational access to the JFJ national facility.

Duration: 2021-2024 (implementation phase)
Funding: Swiss State Secretariat for Education Research and Innovation (SERI)
Contact: Martin Gysel-Beer, martin.gysel@psi.ch
Web page: https://www.actris.ch/

Atmospheric composition and processes play a key role in environmental and societal challenges such as air quality, adverse health impacts or climate change. Permanent and long-term observations of aerosols, clouds and trace gases at distributed National Facilities are performed by ACTRIS ERIC member countries. This is vital for producing observational data products of high quality and with sufficient spatial coverage, making them openly available for any kind of users and services, and providing a platform for researchers to address the challenges associated with these atmospheric constituents in an effective and comprehensive manner.

In ACTRIS, the National Facilities are comprised of i) Observational Platforms, which cover the classical measurements of atmospheric air pollutants and cloud properties at rural and background sites and of ii) Exploratory Platforms, which are additional facilities for answering more science-based questions, such as atmospheric simulation chambers and mobile installations. ACTRIS also has European level Central Facilities which include Head Office, Data Centre and Topical Centres for training, calibration and operation support.

PSI is coordinating the ACTRIS Switzerland consortium with Empa, University of Berne, ETH Zurich, PMOD/WRC and MeteoSwiss as further partners. Altogether, ACTRIS-CH contributes to two Topical Centres of ACTRIS and runs two Observational Platforms as well as one exploratory platform as National Facilities of ACTRIS, as illustrated in below figure. PSI is involved in multiple National Facilities of ACTRIS, as detailed in the following.

National Facilities and contributions to Central Facilities during implementation of ACTRIS Switzerland (ACTRIS-CH) as foreseen to be integrated in the ACTRIS ERIC.

Jungfraujoch observational platform (JFJ)

Contact: Benjamin Brem (benjamin.brem@psi.ch) and Martin Gysel-Beer (martin.gysel@psi.ch)
More info: https://www.psi.ch/de/lac/actris-observatories and https://www.actris.ch/

The research programmes on trace gases (i.e. greenhouse gases, reactive air pollutants) and aerosols at the Jungfraujoch (JFJ, 3571 m a.s.l.) are among the most comprehensive worldwide. The JFJ research station, operated by the foundation High Altitude Research Stations Jungfraujoch & Gornergrat (HFSJG), is the highest research station in Europe that is accessible all year by rail, and it is the only accessible observation point in Europe with adequate infrastructure that is within the free troposphere most of the year. Therefore, the JFJ station is of utmost importance for ground-based observations of the free troposphere, which is reflected by its participation in more than thirty national and international networks for atmospheric research. EMPA continuously measures more than 70 gaseous species of reactive gases and greenhouse gases including some of their isotopes. PSI measures all aerosol variables including aerosol physical, optical and chemical properties. As the observatory is within clouds around 40% of the time throughout the year, it provides a unique opportunity for in situ studies of liquid clouds (in summer) and mixed-phase and glaciated clouds (in winter). Continuous cloud in-situ observations are covered by ETH Zurich.

Transnational access opportunities to this user facility are made available through the ACTRIS-IMP and ATMO-ACCESS projects (see also below).

Jungfraujoch Research Station (Photo: Nora Nowak, PSI)

Payerne observational platform (PAY)

Contact: Benjamin Brem (benjamin.brem@psi.ch) and Martin Gysel-Beer (martin.gysel@psi.ch)
More info: https://www.psi.ch/de/lac/actris-observatories and https://www.actris.ch/

The Aerological Station of Payerne is operated by the Federal Office of Meteorology and Climatology MeteoSwiss. Observations include continuous remote sensing profiling of atmospheric parameters (relative humidity, temperature, and wind profiles), aerosols (optical and microphysical parameters), and clouds (cloud base height and cloud cover) within EARLINET (one of the predecessors of ACTRIS) since 2008 and AERONET since 2018. MeteoSwiss also operates microwave radiometers and Doppler lidars and radars and performs radio soundings twice a day providing high quality temperature, humidity and wind profiles. The parameters covered by continuous observations are being upgraded as part of ACTRIS-CH implementation. PSI adds a range of in-situ aerosol observations to determine aerosol physical, optical and chemical properties. The University of Berne together with MeteoSwiss add advanced cloud remote sensing capabilities. It is foreseen to integrate the Payerne site together with the Beromünster site (operated by Empa/NABEL) as Swiss Midland national facility in the ACTRIS-ERIC that covers a comprehensive set of observations of short-lived atmospheric constituents through multiple in-situ and remote sensing approaches.

Payerne observatory of MeteoSwiss, which hosts the ACTRIS national facility. Photo: MeteoSwiss

PSI Atmospheric Chemistry Simulation chamber exploratory platform (PACS)

Contact: Dave Bell (david.bell@psi.ch) and Imad El Haddad (imad.el-haddad@psi.ch)
More info: https://www.actris.ch/

PACS is a stationary 9 m3 cool chamber that can be operated in the temperature range from -10 °C to +30 °C. PSI has a full complement for state-of-the-art instrumentation. The chamber can be equipped with the following gas-phase instruments: a proton-transfer reaction time of flight mass spectrometer, a chemical ionisation atmospheric pressure interface time of flight MS, as well as the standard NOx and ozone monitors. A whole suite of instruments is available for the characterisation of the particle phase. Specific expertise includes generation of complex emissions from a range of combustion sources present in the atmosphere (e.g., wood or coal combustion).

Transnational access opportunities to this user facility are made available through the ATMO-ACCESS project (see also below).

Inside the cool chamber

Duration: 2021-2025
Funding: European Commission under Horizon 2020 - Research and Innovation Framework Programme, H2020-INFRAIA-2020-1, Grant Agreement number: 101008004
Contact: Martin Gysel-Beer (martin.gysel@psi.ch) and Dave Bell (david.bell@psi.ch)
Web page: https://www.atmo-access.eu/

Scientific and logistical assistance as well as financial support for performing experiments at the JFJ and PACS facilities is provided by ACTRIS through the transnational access scheme of the ATMO-ACCESS project. Please do not hesitate to approach the contacts provided for each facility if you were e.g. interested in running an instrument that complements our experimental setup or in performing an experiment addressing your own research question. More information is provided on the ATMO ACCESS web page, which also serves as entry point for the formal TNA application process: https://www.atmo-access.eu/calls/.

Aerosol observations within ACTRIS-CH are tightly linked to the Swiss contribution to the Global Atmosphere Watch programme, which is coordinated by MeteoSwiss. Further info at:
PSI: GAW Aerosol Montioring at Jungfraujoch
MeteoSwiss: GAW-CH

A selection of other projects of the LAC, which make use of the ACTRIS Switzerland research facilities, are listed in below table. More information on projects by ACTRIS Switzerland partners is available at: https://www.actris.ch/

Project Description Duration Aufsteigend sortieren Contact
GAW Aerosol Monitoring at JFJ

GAW Longterm Aerosol Monitoring at the High-Altitude Research Station Jungfraujoch

ongoing since 1995 Dr. Martin Gysel Beer
SNSF Ambizione BIOPSI

Biological Particle Sources and Impact

2024-2027 Dr. Lubna Dada
SNSF Ambizione MACrAA

Macromolecular aerosols in the cryosphere from the Arctic to the Alps

2022-2026 Dr. Patrik Winiger
BISAR

Polarimetry to Bridge the Gap between In-Situ and Remote Sensing Observations of Atmospheric Aerosols

2022-2025 Dr. Martin Gysel Beer

The ACTRIS ERIC combines the heritage of multiple EU-funded infrastructure development projects that addressed different components which are now integrated in the ACTRIS ERIC:

  • ACTRIS-ERIC implementation: ACTRIS-PPP ACTRIS-IMP
  • Aerosol in-situ observations: EUSAAR ACTRIS → ACTRIS-2
  • Aerosol remote sensing: EARLINET
  • Chamber facilities: EUROCHAMP → EUROCHAMP-2 → EUROCHAMP-2020
  • Cloud remote sensing: CLOUDNET
  • Casquero-Vera JA, Pérez-Ramírez D, Lyamani H, Rejano F, Casans A, Titos G, et al.
    Impact of desert dust on new particle formation events and the cloud condensation nuclei budget in dust-influenced areas
    Atmospheric Chemistry and Physics. 2023; 23(24): 15795-15814. https://doi.org/10.5194/acp-23-15795-2023
    DORA PSI
  • Liu X, Hadiatullah H, Zhang X, Trechera P, Savadkoohi M, Garcia-Marlès M, et al.
    Ambient air particulate total lung deposited surface area (LDSA) levels in urban Europe
    Science of the Total Environment. 2023; 898: 165466 (11 pp.). https://doi.org/10.1016/j.scitotenv.2023.165466
    DORA PSI
  • Trechera P, Garcia-Marlès M, Liu X, Reche C, Pérez N, Savadkoohi M, et al.
    Phenomenology of ultrafine particle concentrations and size distribution across urban Europe
    Environment International. 2023; 172: 107744 (17 pp.). https://doi.org/10.1016/j.envint.2023.107744
    DORA PSI
  • Beck I, Angot H, Baccarini A, Dada L, Quéléver L, Jokinen T, et al.
    Automated identification of local contamination in remote atmospheric composition time series
    Atmospheric Measurement Techniques. 2022; 15(14): 4195-4224. https://doi.org/10.5194/amt-15-4195-2022
    DORA PSI
  • Brunner C, Brem BT, Collaud Coen M, Conen F, Steinbacher M, Gysel-Beer M, et al.
    The diurnal and seasonal variability of ice-nucleating particles at the high altitude station Jungfraujoch (3580 m a.s.l.), Switzerland
    Atmospheric Chemistry and Physics. 2022; 22(11): 7557-7573. https://doi.org/10.5194/acp-22-7557-2022
    DORA PSI
  • Chen G, Canonaco F, Tobler A, Aas W, Alastuey A, Allan J, et al.
    European aerosol phenomenology - 8: harmonised source apportionment of organic aerosol using 22 year-long ACSM/AMS datasets
    Environment International. 2022; 166: 107325 (18 pp.). https://doi.org/10.1016/j.envint.2022.107325
    DORA PSI
  • Lehtipalo K, Ahonen LR, Baalbaki R, Sulo J, Chan T, Laurila T, et al.
    The standard operating procedure for Airmodus Particle Size Magnifier and nano-Condensation Nucleus Counter
    Journal of Aerosol Science. 2022; 159: 105896 (20 pp.). https://doi.org/10.1016/j.jaerosci.2021.105896
    DORA PSI
  • Affolter S, Schibig M, Berhanu T, Bukowiecki N, Steinbacher M, Nyfeler P, et al.
    Assessing local CO2 contamination revealed by two near-by high altitude records at Jungfraujoch, Switzerland
    Environmental Research Letters. 2021; 16(4): 044037 (12 pp.). https://doi.org/10.1088/1748-9326/abe74a
    DORA PSI
  • Bressi M, Cavalli F, Putaud JP, Fröhlich R, Petit J-E, Aas W, et al.
    A European aerosol phenomenology - 7: high-time resolution chemical characteristics of submicron particulate matter across Europe
    Atmospheric Environment: X. 2021; 10: 100108 (16 pp.). https://doi.org/10.1016/j.aeaoa.2021.100108
    DORA PSI
  • Brunner C, Brem BT, Collaud Coen M, Conen F, Hervo M, Henne S, et al.
    The contribution of Saharan dust to the ice-nucleating particle concentrations at the High Altitude Station Jungfraujoch (3580 m a.s.l.), Switzerland
    Atmospheric Chemistry and Physics. 2021; 21(23): 18029-18053. https://doi.org/10.5194/acp-21-18029-2021
    DORA PSI
  • Bukowiecki N, Brem BT, Wehrle G, Močnik G, Affolter S, Leuenberger M, et al.
    Elucidating local pollution and site representativeness at the Jungfraujoch, Switzerland through parallel aerosol measurements at an adjacent mountain ridge
    Environmental Research Communications. 2021; 3(2): 021001 (12 pp.). https://doi.org/10.1088/2515-7620/abe987
    DORA PSI
  • Düsing S, Ansmann A, Baars H, Corbin JC, Denjean C, Gysel-Beer M, et al.
    Measurement report: comparison of airborne, in situ measured, lidar-based, and modeled aerosol optical properties in the central European background - identifying sources of deviations
    Atmospheric Chemistry and Physics. 2021; 21(22): 16745-16773. https://doi.org/10.5194/acp-21-16745-2021
    DORA PSI
  • Evangeliou N, Platt SM, Eckhardt S, Lund Myhre C, Laj P, Alados-Arboledas L, et al.
    Changes in black carbon emissions over Europe due to COVID-19 lockdowns
    Atmospheric Chemistry and Physics. 2021; 21(4): 2675-2692. https://doi.org/10.5194/acp-21-2675-2021
    DORA PSI
  • Farah A, Freney E, Canonaco F, Prévôt ASH, Pichon J-M, Abboud M, et al.
    Altitude aerosol measurements in central France: seasonality, sources and free-troposphere/boundary layer segregation
    Earth and Space Science. 2021; 8(3): e2019EA001018 (18 pp.). https://doi.org/10.1029/2019EA001018
    DORA PSI
  • Lacher L, Clemen H-C, Shen X, Mertes S, Gysel-Beer M, Moallemi A, et al.
    Sources and nature of ice-nucleating particles in the free troposphere at Jungfraujoch in winter 2017
    Atmospheric Chemistry and Physics. 2021; 21(22): 16925-16953. https://doi.org/10.5194/acp-21-16925-2021
    DORA PSI
  • Modini RL, Corbin JC, Brem BT, Irwin M, Bertò M, Pileci RE, et al.
    Detailed characterization of the CAPS single-scattering albedo monitor (CAPS PMssa) as a field-deployable instrument for measuring aerosol light absorption with the extinction-minus-scattering method
    Atmospheric Measurement Techniques. 2021; 14(2): 819-851. https://doi.org/10.5194/amt-14-819-2021
    DORA PSI
  • Pileci RE, Modini RL, Bertò M, Yuan J, Corbin JC, Marinoni A, et al.
    Comparison of co-located refractory black carbon (rBC) and elemental carbon (EC) mass concentration measurements during field campaigns at several European sites
    Atmospheric Measurement Techniques. 2021; 14(2): 1379-1403. https://doi.org/10.5194/amt-14-1379-2021
    DORA PSI
  • Rose C, Collaud Coen M, Andrews E, Lin Y, Bossert I, Lund Myhre C, et al.
    Seasonality of the particle number concentration and size distribution: a global analysis retrieved from the network of Global Atmosphere Watch (GAW) near-surface observatories
    Atmospheric Chemistry and Physics. 2021; 21(22): 17185-17223. https://doi.org/10.5194/acp-21-17185-2021
    DORA PSI
  • Srivastava D, Daellenbach KR, Zhang Y, Bonnaire N, Chazeau B, Perraudin E, et al.
    Comparison of five methodologies to apportion organic aerosol sources during a PM pollution event
    Science of the Total Environment. 2021; 757: 143168 (12 pp.). https://doi.org/10.1016/j.scitotenv.2020.143168
    DORA PSI
  • Yuan J, Modini RL, Zanatta M, Herber AB, Müller T, Wehner B, et al.
    Variability in the mass absorption cross section of black carbon (BC) aerosols is driven by BC internal mixing state at a central European background site (Melpitz, Germany) in winter
    Atmospheric Chemistry and Physics. 2021; 21(2): 635-655. https://doi.org/10.5194/acp-21-635-2021
    DORA PSI
  • Collaud Coen M, Andrews E, Alastuey A, Petkov Arsov T, Backman J, Brem BT, et al.
    Multidecadal trend analysis of in situ aerosol radiative properties around the world
    Atmospheric Chemistry and Physics. 2020; 20(14): 8867-8908. https://doi.org/10.5194/acp-20-8867-2020
    DORA PSI
  • Laj P, Bigi A, Rose C, Andrews E, Lund Myhre C, Collaud Coen M, et al.
    A global analysis of climate-relevant aerosol properties retrieved from the network of Global Atmosphere Watch (GAW) near-surface observatories
    Atmospheric Measurement Techniques. 2020; 13(8): 4353-4392. https://doi.org/10.5194/amt-13-4353-2020
    DORA PSI
  • Motos G, Corbin JC, Schmale J, Modini RL, Bertò M, Kupiszewski P, et al.
    Black carbon aerosols in the lower free troposphere are heavily coated in summer but largely uncoated in winter at Jungfraujoch in the Swiss Alps
    Geophysical Research Letters. 2020; 47(14): e2020GL088011 (10 pp.). https://doi.org/10.1029/2020GL088011
    DORA PSI
  • Petäjä T, Duplissy E-M, Tabakova K, Schmale J, Altstädter B, Ancellet G, et al.
    Overview: integrative and comprehensive understanding on polar environments (iCUPE) - concept and initial results
    Atmospheric Chemistry and Physics. 2020; 20(14): 8551-8592. https://doi.org/10.5194/acp-20-8551-2020
    DORA PSI
  • Regayre LA, Schmale J, Johnson JS, Tatzelt C, Baccarini A, Henning S, et al.
    The value of remote marine aerosol measurements for constraining radiative forcing uncertainty
    Atmospheric Chemistry and Physics. 2020; 20(16): 10063-10072. https://doi.org/10.5194/acp-20-10063-2020
    DORA PSI
  • Wolf MJ, Zhang Y, Zawadowicz MA, Goodell M, Froyd K, Freney E, et al.
    A biogenic secondary organic aerosol source of cirrus ice nucleating particles
    Nature Communications. 2020; 11(1): 4834 (9 pp.). https://doi.org/10.1038/s41467-020-18424-6
    DORA PSI
  • Creamean JM, Mignani C, Bukowiecki N, Conen F
    Using freezing spectra characteristics to identify ice-nucleating particle populations during the winter in the Alps
    Atmospheric Chemistry and Physics. 2019; 19(12): 8123-8140. https://doi.org/10.5194/acp-19-8123-2019
    DORA PSI
  • Freney E, Zhang Y, Croteau P, Amodeo T, Williams L, Truong F, et al.
    The second ACTRIS inter-comparison (2016) for Aerosol Chemical Speciation Monitors (ACSM): calibration protocols and instrument performance evaluations
    Aerosol Science and Technology. 2019; 53(7): 830-842. https://doi.org/10.1080/02786826.2019.1608901
    DORA PSI
  • Jiang J, Aksoyoglu S, Ciarelli G, Oikonomakis E, El-Haddad I, Canonaco F, et al.
    Effects of two different biogenic emission models on modelled ozone and aerosol concentrations in Europe
    Atmospheric Chemistry and Physics. 2019; 19(6): 3747-3768. https://doi.org/10.5194/acp-19-3747-2019
    DORA PSI
  • Jiang J, Aksoyoglu S, El-Haddad I, Ciarelli G, Denier van der Gon HAC, Canonaco F, et al.
    Sources of organic aerosols in Europe: a modeling study using CAMx with modified volatility basis set scheme
    Atmospheric Chemistry and Physics. 2019; 19(24): 15247-15270. https://doi.org/10.5194/acp-19-15247-2019
    DORA PSI
  • Motos G, Schmale J, Corbin JC, Modini RL, Karlen N, Bertò M, et al.
    Cloud droplet activation properties and scavenged fraction of black carbon in liquid-phase clouds at the high-alpine research station Jungfraujoch (3580 m a.s.l.)
    Atmospheric Chemistry and Physics. 2019; 19(6): 3833-3855. https://doi.org/10.5194/acp-19-3833-2019
    DORA PSI
  • Yttri KE, Simpson D, Bergström R, Kiss G, Szidat S, Ceburnis D, et al.
    The EMEP intensive measurement period campaign, 2008–2009: characterizing carbonaceous aerosol at nine rural sites in Europe
    Atmospheric Chemistry and Physics. 2019; 19(7): 4211-4233. https://doi.org/10.5194/acp-19-4211-2019
    DORA PSI
  • Zhang Y, Favez O, Petit J-E, Canonaco F, Truong F, Bonnaire N, et al.
    Six-year source apportionment of submicron organic aerosols from near-continuous highly time-resolved measurements at SIRTA (Paris area, France)
    Atmospheric Chemistry and Physics. 2019; 19(23): 14755-14776. https://doi.org/10.5194/acp-19-14755-2019
    DORA PSI
  • Äijälä M, Daellenbach KR, Canonaco F, Heikkinen L, Junninen H, Petäjä T, et al.
    Constructing a data-driven receptor model for organic and inorganic aerosol - a synthesis analysis of eight mass spectrometric data sets from a boreal forest site
    Atmospheric Chemistry and Physics. 2019; 19(6): 3645-3672. https://doi.org/10.5194/acp-19-3645-2019
    DORA PSI
  • Collaud Coen M, Andrews E, Aliaga D, Andrade M, Angelov H, Bukowiecki N, et al.
    Identification of topographic features influencing aerosol observations at high altitude stations
    Atmospheric Chemistry and Physics. 2018; 18(16): 12289-12313. https://doi.org/10.5194/acp-18-12289-2018
    DORA PSI
  • Conen F, Bukowiecki N, Gysel M, Steinbacher M, Fischer A, Reimann S
    Low number concentration of ice nucleating particles in an aged smoke plume
    Quarterly Journal of the Royal Meteorological Society. 2018; 144(715): 1991-1994. https://doi.org/10.1002/qj.3312
    DORA PSI
  • Dall'Osto M, Beddows DCS, Asmi A, Poulain L, Hao L, Freney E, et al.
    Novel insights on new particle formation derived from a pan-european observing system
    Scientific Reports. 2018; 8(1): 1482 (11 pp.). https://doi.org/10.1038/s41598-017-17343-9
    DORA PSI
  • Lacher L, DeMott PJ, Levin EJT, Suski KJ, Boose Y, Zipori A, et al.
    Background free-tropospheric ice nucleating particle concentrations at mixed-phase cloud conditions
    Journal of Geophysical Research D: Atmospheres. 2018; 123(18): 10506-10525. https://doi.org/10.1029/2018JD028338
    DORA PSI
  • Lacher L, Steinbacher M, Bukowiecki N, Herrmann E, Zipori A, Kanji ZA
    Impact of air mass conditions and aerosol properties on ice nucleating particle concentrations at the High Altitude Research Station Jungfraujoch
    Atmosphere. 2018; 9(9): 363 (25 pp.). https://doi.org/10.3390/atmos9090363
    DORA PSI
  • Nieminen T, Kerminen V-M, Petäjä T, Aalto PP, Arshinov M, Asmi E, et al.
    Global analysis of continental boundary layer new particle formation based on long-term measurements
    Atmospheric Chemistry and Physics. 2018; 18(19): 14737-14756. https://doi.org/10.5194/acp-18-14737-2018
    DORA PSI
  • Pandolfi M, Alados-Arboledas L, Alastuey A, Andrade M, Angelov C, Artiñano B, et al.
    A European aerosol phenomenology – 6: scattering properties of atmospheric aerosol particles from 28 ACTRIS sites
    Atmospheric Chemistry and Physics. 2018; 18(11): 7877-7911. https://doi.org/10.5194/acp-18-7877-2018
    DORA PSI
  • Salameh D, Pey J, Bozzetti C, El Haddad I, Detournay A, Sylvestre A, et al.
    Sources of PM2.5 at an urban-industrial Mediterranean city, Marseille (France): application of the ME-2 solver to inorganic and organic markers
    Atmospheric Research. 2018; 214: 263-274. https://doi.org/10.1016/j.atmosres.2018.08.005
    DORA PSI
  • Schmale J, Henning S, Decesari S, Henzing B, Keskinen H, Sellegri K, et al.
    Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories
    Atmospheric Chemistry and Physics. 2018; 18(4): 2853-2881. https://doi.org/10.5194/acp-18-2853-2018
    DORA PSI
  • Tsekeri A, Amiridis V, Lopatin A, Marinou E, Giannakaki E, Pikridas M, et al.
    Aerosol absorption profiling from the synergy of lidar and sun-photometry: the ACTRIS-2 campaigns in Germany, Greece and Cyprus
    In: Nicolae D, Makoto A, Vassilis A, Balis D, Behrendt A, Comeron A, et al., eds. The 28th international laser radar conference (ILRC 28). Vol. 176. EPJ web of conferences. sine loco: EDP Sciences; 2018:08005 (5 pp.). https://doi.org/10.1051/epjconf/201817608005
    DORA PSI
  • Zhang Y, Favez O, Canonaco F, Liu D, Močnik G, Amodeo T, et al.
    Evidence of major secondary organic aerosol contribution to lensing effect black carbon absorption enhancement
    npj Climate and Atmospheric Science. 2018;(1): 47 (8 pp.). https://doi.org/10.1038/s41612-018-0056-2
    DORA PSI
  • Drinovec L, Gregorič A, Zotter P, Wolf R, Bruns EA, Prévôt ASH, et al.
    The filter-loading effect by ambient aerosols in filter absorption photometers depends on the coating of the sampled particles
    Atmospheric Measurement Techniques. 2017; 10(3): 1043-1059. https://doi.org/10.5194/amt-10-1043-2017
    DORA PSI
  • Frege C, Bianchi F, Molteni U, Tröstl J, Junninen H, Henne S, et al.
    Chemical characterization of atmospheric ions at the high altitude research station Jungfraujoch (Switzerland)
    Atmospheric Chemistry and Physics. 2017; 17(4): 2613-2629. https://doi.org/10.5194/acp-17-2613-2017
    DORA PSI
  • Jokinen T, Kontkanen J, Lehtipalo K, Manninen HE, Aalto J, Porcar-Castell A, et al.
    Solar eclipse demonstrating the importance of photochemistry in new particle formation
    Scientific Reports. 2017; 7: 45707 (5 pp.). https://doi.org/10.1038/srep45707
    DORA PSI
  • Kontkanen J, Lehtipalo K, Ahonen L, Kangasluoma J, Manninen HE, Hakala J, et al.
    Measurements of sub-3 nm particles using a particle size magnifier in different environments: from clean mountain top to polluted megacities
    Atmospheric Chemistry and Physics. 2017; 17(3): 2163-2187. https://doi.org/10.5194/acp-17-2163-2017
    DORA PSI
  • Lacher L, Lohmann U, Boose Y, Zipori A, Herrmann E, Bukowiecki N, et al.
    The Horizontal Ice Nucleation Chamber (HINC): INP measurements at conditions relevant for mixed-phase clouds at the High Altitude Research Station Jungfraujoch
    Atmospheric Chemistry and Physics. 2017; 17(24): 15199-15224. https://doi.org/10.5194/acp-17-15199-2017
    DORA PSI
  • Reddington CL, Carslaw KS, Stier P, Schutgens N, Coe H, Liu D, et al.
    The Global Aerosol Synthesis and Science Project (GASSP). Measurements and modeling to reduce uncertainty
    Bulletin of the American Meteorological Society. 2017; 98(9): 1857-1877. https://doi.org/10.1175/BAMS-D-15-00317.1
    DORA PSI
  • Schmale J, Henning S, Henzing B, Keskinen H, Sellegri K, Ovadnevaite J, et al.
    Collocated observations of cloud condensation nuclei, particle size distributions, and chemical composition
    Scientific Data. 2017; 4: 170003 (26 pp.). https://doi.org/10.1038/sdata.2017.3
    DORA PSI
  • Schmidt S, Schneider J, Klimach T, Mertes S, Schenk LP, Kupiszewski P, et al.
    Online single particle analysis of ice particle residuals from mountain-top mixed-phase clouds using laboratory derived particle type assignment
    Atmospheric Chemistry and Physics. 2017; 17(1): 575-594. https://doi.org/10.5194/acp-17-575-2017
    DORA PSI
  • Äijälä M, Heikkinen L, Fröhlich R, Canonaco F, Prévôt ASH, Junninen H, et al.
    Resolving anthropogenic aerosol pollution types - deconvolution and exploratory classification of pollution events
    Atmospheric Chemistry and Physics. 2017; 17(4): 3165-3197. https://doi.org/10.5194/acp-17-3165-2017
    DORA PSI
  • Bianchi F, Tröstl J, Junninen H, Frege C, Henne S, Hoyle CR, et al.
    New particle formation in the free troposphere: a question of chemistry and timing
    Science. 2016; 352(6289): 1109-1112. https://doi.org/10.1126/science.aad5456
    DORA PSI
  • Bukowiecki N, Weingartner E, Gysel M, Coen MC, Zieger P, Herrmann E, et al.
    A review of more than 20 years of aerosol observation at the high altitude research station Jungfraujoch, Switzerland (3580 m asl)
    Aerosol and Air Quality Research. 2016; 16(3): 764-788. https://doi.org/10.4209/aaqr.2015.05.0305
    DORA PSI
  • Crawford I, Lloyd G, Herrmann E, Hoyle CR, Bower KN, Connolly PJ, et al.
    Observations of fluorescent aerosol–cloud interactions in the free troposphere at the High-Altitude Research Station Jungfraujoch
    Atmospheric Chemistry and Physics. 2016; 16(4): 2273-2284. https://doi.org/10.5194/acp-16-2273-2016
    DORA PSI
  • Frieß U, Klein Baltink H, Beirle S, Clémer K, Hendrick F, Henzing B, et al.
    Intercomparison of aerosol extinction profiles retrieved from MAX-DOAS measurements
    Atmospheric Measurement Techniques. 2016; 9(7): 3205-3222. https://doi.org/10.5194/amt-9-3205-2016
    DORA PSI
  • Kangasluoma J, Samodurov A, Attoui M, Franchin A, Junninen H, Korhonen F, et al.
    Heterogeneous nucleation onto ions and neutralized ions: insights into sign-preference
    Journal of Physical Chemistry C. 2016; 120(13): 7444-7450. https://doi.org/10.1021/acs.jpcc.6b01779
    DORA PSI
  • Kangasluoma J, Franchin A, Duplissy J, Ahonen L, Korhonen F, Attoui M, et al.
    Operation of the Airmodus A11 nano Condensation Nucleus Counter at various inlet pressures and various operation temperatures, and design of a new inlet system
    Atmospheric Measurement Techniques. 2016; 9(7): 2977-2988. https://doi.org/10.5194/amt-9-2977-2016
    DORA PSI
  • Kupiszewski P, Zanatta M, Mertes S, Vochezer P, Lloyd G, Schneider J, et al.
    Ice residual properties in mixed-phase clouds at the high-alpine Jungfraujoch site
    Journal of Geophysical Research D: Atmospheres. 2016; 121(20): 12343-12362. https://doi.org/10.1002/2016JD024894
    DORA PSI
  • Pinterich T, Vrtala A, Kaltak M, Kangasluoma J, Lehtipalo K, Petäjä T, et al.
    The versatile size analyzing nuclei counter (vSANC)
    Aerosol Science and Technology. 2016; 50(9): 947-958. https://doi.org/10.1080/02786826.2016.1210783
    DORA PSI
  • Rosati B, Gysel M, Rubach F, Mentel TF, Goger B, Poulain L, et al.
    Vertical profiling of aerosol hygroscopic properties in the planetary boundary layer during the PEGASOS campaigns
    Atmospheric Chemistry and Physics. 2016; 16(11): 7295-7315. https://doi.org/10.5194/acp-16-7295-2016
    DORA PSI
  • Schlag P, Kiendler-Scharr A, Johannes Blom M, Canonaco F, Henzing JS, Moerman M, et al.
    Aerosol source apportionment from 1-year measurements at the CESAR tower in Cabauw, the Netherlands
    Atmospheric Chemistry and Physics. 2016; 16(14): 8831-8847. https://doi.org/10.5194/acp-16-8831-2016
    DORA PSI
  • Tröstl J, Herrmann E, Frege C, Bianchi F, Molteni U, Bukowiecki N, et al.
    Contribution of new particle formation to the total aerosol concentration at the high-altitude site Jungfraujoch (3580 m asl, Switzerland)
    Journal of Geophysical Research D: Atmospheres. 2016; 121(19): 11692-11711. https://doi.org/10.1002/2015JD024637
    DORA PSI
  • Vochezer P, Järvinen E, Wagner R, Kupiszewski P, Leisner T, Schnaiter M
    In situ characterization of mixed phase clouds using the Small Ice Detector and the Particle Phase Discriminator
    Atmospheric Measurement Techniques. 2016; 9(1): 159-177. https://doi.org/10.5194/amt-9-159-2016
    DORA PSI
  • Zanatta M, Gysel M, Bukowiecki N, Müller T, Weingartner E, Areskoug H, et al.
    A European aerosol phenomenology-5: climatology of black carbon optical properties at 9 regional background sites across Europe
    Atmospheric Environment. 2016; 145: 346-364. https://doi.org/10.1016/j.atmosenv.2016.09.035
    DORA PSI
  • Crenn V, Sciare J, Croteau PL, Verlhac S, Fröhlich R, Belis CA, et al.
    ACTRIS ACSM intercomparison - Part 1: Reproducibility of concentration and fragment results from 13 individual quadrupole aerosol chemical speciation monitors (Q-ACSM) and consistency with co-located instruments
    Atmospheric Measurement Techniques. 2015; 8(12): 5063-5087. https://doi.org/10.5194/amt-8-5063-2015
    DORA PSI
  • Degefie DT, El-Madany T-S, Held M, Hejkal J, Hammer E, Dupont J-C, et al.
    Fog chemical composition and its feedback to fog water fluxes, water vapor fluxes, and microphysical evolution of two events near Paris
    Atmospheric Research. 2015; 164-165: 328-338. https://doi.org/10.1016/j.atmosres.2015.05.002
    DORA PSI
  • Fröhlich R, Crenn V, Setyan A, Belis CA, Canonaco F, Favez O, et al.
    ACTRIS ACSM intercomparison - Part 2: intercomparison of ME-2 organic source apportionment results from 15 individual, co-located aerosol mass spectrometers
    Atmospheric Measurement Techniques. 2015; 8(6): 2555-2576. https://doi.org/10.5194/amt-8-2555-2015
    DORA PSI
  • Fröhlich R, Cubison MJ, Slowik JG, Bukowiecki N, Canonaco F, Croteau PL, et al.
    Fourteen months of on-line measurements of the non-refractory submicron aerosol at the Jungfraujoch (3580 m a.s.l.) - chemical composition, origins and organic aerosol sources
    Atmospheric Chemistry and Physics. 2015; 15(19): 11373-11398. https://doi.org/10.5194/acp-15-11373-2015
    DORA PSI
  • Hammer E, Bukowiecki N, Luo BP, Lohmann U, Marcolli C, Weingartner E, et al.
    Sensitivity estimations for cloud droplet formation in the vicinity of the high-alpine research station Jungfraujoch (3580 m a.s.l.)
    Atmospheric Chemistry and Physics. 2015; 15(18): 10309-10323. https://doi.org/10.5194/acp-15-10309-2015
    DORA PSI
  • Herrmann E, Weingartner E, Henne S, Vuilleumier L, Bukowiecki N, Steinbacher M, et al.
    Analysis of long-term aerosol size distribution data from Jungfraujoch with emphasis on free tropospheric conditions, cloud influence, and air mass transport
    Journal of Geophysical Research D: Atmospheres. 2015; 120(18): 9459-9480. https://doi.org/10.1002/2015JD023660
    DORA PSI
  • Kupiszewski P, Weingartner E, Vochezer P, Schnaiter M, Bigi A, Gysel M, et al.
    The Ice Selective Inlet: a novel technique for exclusive extraction of pristine ice crystals in mixed-phase clouds
    Atmospheric Measurement Techniques. 2015; 8(8): 3087-3106. https://doi.org/10.5194/amt-8-3087-2015
    DORA PSI
  • Minguillón MC, Ripoll A, Pérez N, Prévôt ASH, Canonaco F, Querol X, et al.
    Chemical characterization of submicron regional background aerosols in the western Mediterranean using an Aerosol Chemical Speciation Monitor
    Atmospheric Chemistry and Physics. 2015; 15(11): 6379-6391. https://doi.org/10.5194/acp-15-6379-2015
    DORA PSI
  • Paramonov M, Kerminen V-M, Gysel M, Aalto PP, Andreae MO, Asmi E, et al.
    A synthesis of cloud condensation nuclei counter (CCNC) measurements within the EUCAARI network
    Atmospheric Chemistry and Physics. 2015; 15(21): 12211-12229. https://doi.org/10.5194/acp-15-12211-2015
    DORA PSI
  • Zieger P, Aalto PP, Aaltonen V, Äijälä M, Backman J, Hong J, et al.
    Low hygroscopic scattering enhancement of boreal aerosol and the implications for a columnar optical closure study
    Atmospheric Chemistry and Physics. 2015; 15(13): 7247-7267. https://doi.org/10.5194/acp-15-7247-2015
    DORA PSI
  • Hammer E, Bukowiecki N, Gysel M, Jurányi Z, Hoyle CR, Vogt R, et al.
    Investigation of the effective peak supersaturation for liquid-phase clouds at the high-alpine site Jungfraujoch, Switzerland (3580 m a.s.l.)
    Atmospheric Chemistry and Physics. 2014; 14(2): 1123-1139. https://doi.org/10.5194/acp-14-1123-2014
    DORA PSI
  • Petit J-E, Favez O, Sciare J, Canonaco F, Croteau P, Močnik G, et al.
    Submicron aerosol source apportionment of wintertime pollution in Paris, France by double positive matrix factorization (PMF2) using an aerosol chemical speciation monitor (ACSM) and a multi-wavelength Aethalometer
    Atmospheric Chemistry and Physics. 2014; 14(24): 13773-13787. https://doi.org/10.5194/acp-14-13773-2014
    DORA PSI
  • Segura S, Estellés V, Titos G, Lyamani H, Utrillas MP, Zotter P, et al.
    Determination and analysis of in situ spectral aerosol optical properties by a multi-instrumental approach
    Atmospheric Measurement Techniques. 2014; 7(8): 2373-2387. https://doi.org/10.5194/amt-7-2373-2014
    DORA PSI
  • Asmi A, Collaud Coen M, Ogren JA, Andrews E, Sheridan P, Jefferson A, et al.
    Aerosol decadal trends - part 2: in-situ aerosol particle number concentrations at GAW and ACTRIS stations
    Atmospheric Chemistry and Physics. 2013; 13(2): 895-916. https://doi.org/10.5194/acp-13-895-2013
    DORA PSI
  • Collaud Coen M, Andrews E, Asmi A, Baltensperger U, Bukowiecki N, Day D, et al.
    Aerosol decadal trends - part 1: in-situ optical measurements at GAW and IMPROVE stations
    Atmospheric Chemistry and Physics. 2013; 13(2): 869-894. https://doi.org/10.5194/acp-13-869-2013
    DORA PSI
  • Fröhlich R, Cubison MJ, Slowik JG, Bukowiecki N, Prévôt ASH, Baltensperger U, et al.
    The ToF-ACSM: a portable aerosol chemical speciation monitor with TOFMS detection
    Atmospheric Measurement Techniques. 2013; 6(11): 3225-3241. https://doi.org/10.5194/amt-6-3225-2013
    DORA PSI
  • Szidat S, Bench G, Bernardoni V, Calzolai G, Czimczik CI, Derendorp L, et al.
    Intercomparison of 14C analysis of carbonaceous aerosols: exercise 2009
    Radiocarbon. 2013; 55(2-3): 1496-1509. https://doi.org/10.1017/S0033822200048426
    DORA PSI
  • Wiedensohler A, Birmili W, Nowak A, Sonntag A, Weinhold K, Merkel M, et al.
    Mobility particle size spectrometers: harmonization of technical standards and data structure to facilitate high quality long-term observations of atmospheric particle number size distributions
    Atmospheric Measurement Techniques. 2012; 5(3): 657-685. https://doi.org/10.5194/amt-5-657-2012
    DORA PSI