People
We work in the atmospheric aerosols group.
Katrianne Lehtipalo

Associate professor, group leader

I'm associate professor of experimental atmospheric science at INAR and Finnish Meteorological Institute. I'm also Director of the Doctoral program in Atmospheric Sciences. My expertise is in aerosol physics and I have wide experience with field and laboratory experiments on atmospheric aerosols and nanoparticle measurement techniques. I'm interested in processes altering the atmospheric aerosol and ion population, such as aerosol formation and growth. The main projects I'm involved in are ACTRIS and CLOUD.

Home page and publications

Contact: katrianne.lehtipalo(a)helsinki.fi
Twitter: @Katrianne_L

Rima Baalbaki

Doctoral student

I am interested in understanding the mechanisms of atmospheric new particle formation in different environments, mainly in the Eastern Mediterranean and Middle East region. My research work involves laboratory experiments, field measurements and data analysis. I dislike working with ‘black boxes’ and I enjoy learning about the internal workings of instruments and other research tools. 

Home page and publications

Contact: rima.baalbaki(a)helsinki.fi
Twitter: @BaalbakiRima

Zoe Brasseur

Doctoral student

I am a PhD student working on atmospheric ice nucleation. My main research topic is heterogeneous ice nucleation and the interactions between atmospheric aerosols and clouds. I am interested in boreal and polar environments and I am using data from field and laboratory experiments. 

Home page and publications

Contact: zoe.brasseur(a)helsinki.fi
Twitter: @ZoeBrasseur

Jonathan Duplissy

Post doctoral researcher, docent

Home page and publications

Contact: jonathan.duplissy(a)helsinki.fi
Twitter: @JonathanInFinl

Janne Lampilahti

Doctoral student

In my doctoral project I do aerosol, trace gas and meteorological measurements on board a small aircraft and use the data to find out what effects boundary layer evolution and dynamics have on atmospheric new particle formation.

Home page and publications

Contact: janne.lampilahti(a)helsinki.fi

Markus Lampimäki

Post doctoral researcher

I am a postdoctoral researcher with interests in ion spectroscopic measurements, experimental lab work on nanoparticles as well as field measurements at different locations.

Home page and publications

Contact: markus.lampimaki(a)helsinki.fi

Krista Luoma

Post doctoral researcher

I work with the optical properties of aerosols and black carbon as well as coordination of the HOPE project.

Home page and publications

Contact: krista.q.luoma(a)helsinki.fi

Magdalena Okuljar

Doctoral student

I am a doctoral student researching air quality in Helsinki. My work also includes study of New Particle Formation in the rural environment- Qvidja, Finland. When I am not focused on research, I represent the doctoral candidates on the board of the Doctoral Programme in Atmospheric Science.

Home page and publications

Contact: magdalena.okuljar(a)helsinki.fi

Birte Rörup

Doctoral student

I am a PhD student working with chamber simulations in the CLOUD chamber at CERN, where I look at new particle formation under different atmospheric conditions. Mainly, I am interested in iodine nucleation in marine environments.

Home page and publications

Contact: birte.rörup(a)helsinki.fi

Dominik Stolzenburg

Post doctoral researcher

I am a post-doctoral researcher with the main interest in the dynamics of the cluster-particle transition regime. The fate of newly formed particles in the atmosphere is determined at these critical sizes between 1 and 10 nm. Assessing this region experimentally together with simulation and data analysis tools is my main research focus. I try to address the following questions: Can the dynamics in this size range explain new particle formation in urban environments? What fundamental forces and which vapors do contribute to the growth of the molecular clusters?

Home page and publications

Blog about Dominik's project NPF-Panda

Contact: dominik.stolzenburg(a)helsinki.fi

Juha Sulo

Doctoral student

I am a PhD student focusing on new particle formation in the atmosphere and time series analysis. I mainly work with sub-3nm particle size distributions and related long data sets in my work, in addition to which I monitor and maintain our long-term Particle Size Magnifier measurements at our SMEAR stations.

Home page and publications

Contact: juha.sulo(a)helsinki.fi

Yusheng Wu

Doctoral student

I am interested in instrument development for on-line field measurement and implementing machine learning algorithms in atmospheric problems. 

Home page and publications

Contact: yusheng.wu(a)helsinki.fi

Associated scientists

Prof. Tuukka Petäjä - Head of SMEAR II station, ACTRIS

University researcher Pasi Aalto - Atmospheric aerosol instrumentation, data management

Post doctoral researher Lauri Ahonen - Aerosol measurements at SMEAR II station in Hyytiälä

Post doctoral researcher Kimmo Neitola - Aerosol measurements at SMEAR I station in Värriö

Previous members

PhD Jenni Kontkanen
PhD Robert Wagner
PhD Daniela Wimmer
PhD Katri Leino
PhD Riikka Väänänen
PhD Juan Hong
PhD Alessandro Franchin
PhD John Backman
PhD Ville Vakkari
PhD Juha Kangasluoma
PhD Hanna Manninen