People

We work in the atmospheric aerosols group.
Katrianne Lehtipalo

Professor, group leader

I'm professor of atmospheric science & physics 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.

Contact: katrianne.lehtipalo(a)helsinki.fi

Twitter: @Katrianne_L

Sujai Banerji

Doctoral researcher

I am interested in the optical properties of aerosol particles, especially black and brown carbon, to calculate some of the input parameters that are required for better regional and global climate projections.

Contact: sujai.banerji(a)helsinki.fi

Xuemeng Chen

University researcher

xuemeng.chen(a)helsinki.fi

Samuel De Xun Chua

Doctoral researcher

My research is focusing on the measurement of air quality and atmospheric aerosols. My research interests include hydrology, glaciology and aerosol science. I have conducted fieldwork in diverse environments, from Southeast Asia to Greenland.

Contact: samuel.chua(a)helsinki.fi
 

Neha Deot

Doctoral researcher at INAR and Cyprus Institute

Herbert Hartl

Doctoral Researcher

My PhD project under the Doctoral School of Industrial Innovations aims towards the enhancement, optimization and characterisation of condensation-based size spectrometers for ultrafine aerosol measurements. 

Contact: herbert.hartl(a)helsinki.fi

Jonathan Duplissy

University researcher, docent

Contact: jonathan.duplissy(a)helsinki.fi

Twitter: @JonathanInFinl

Janne Lampilahti

Staff scientist

Working for the ACTRIS Cluster Calibration Center
Expertise: sub-10 nm particle measurements, ion spectrometers, airborne measurements. 

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.

Contact: markus.lampimaki(a)helsinki.fi

Jiali Shen

Post doctoral researcher

 

Contact: jiali.shen(a)helsinki.fi

Christina Williamson

Research professor (tenure track)

I am tenure track research professor of aerosol and cloud processes at the Finnish Meteorological Institute and INAR. My work focuses on using in-situ observations to reduce aerosol radiative forcing uncertainty in global scale models. My background includes airborne and chamber observations, while my current modelling work focuses on EC-Earth.

Contact: christina.williamson(a)fmi.fi

Wenjuan Yu

Doctoral researcher

I am a CLOUD-DOC student at INAR. I conduct my research at the Cosmics Leaving Outdoor Droplets (CLOUD) chamber at CERN, Geneva and compare the experimental results with atmospheric observations.

Contact: wenjuan.yu(a)helsinki.fi

Tinghan Zhang

Doctoral researcher

I am a PhD student working on atmospheric new particle formation. My work focuses on ion spectrometers and nanoparticle measurements in polluted urban environments.

Contact: tinghan.zhang(a)helsinki.fi

Associated scientists

- Head of SMEAR II station, ACTRIS

University researcher Atmospheric aerosol instrumentation, data management

Staff scientist - Aerosol measurements at SMEAR II station in Hyytiälä

Alumni

PhD Zoe Brasseur
PhD Rima Baalbaki
PhD Birte Rörup
PhD Magdalena Okuljar
PhD Juha Sulo
PhD Juan Andres Casquero-Vera
PhD Dominik Stolzenburg
PhD Krista Luoma
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