Group members

ristom_wb

Risto Makkonen, Dr., group leader

My interests include aerosol nucleation, aerosol-cloud-climate interactions and climate feedbacks. My main tools include global aerosol-climate models and Earth System Models. Previously, I have worked on climate effects of anthropogenic and natural aerosols, effect of nitric acid on cloud droplet formation, secondary organic aerosol formation and role of new particle formation on climate. I work with integration of observations to simulation data, in order to evaluate and constrain the aerosol models.

List of publications

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Veli-Matti Kerminen, Prof.

My main fields of expertise are aerosol-trace gas and aerosol-cloud interactions in the atmosphere. My work involves theoretical and experimental approaches along with modeling. The specific research topics of my interest include atmospheric new particle formation, aerosol dynamics, formation and properties of cloud condensation nuclei (CCN), climate-air quality interactions, and feedbacks in the climate system.

List of publications

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Heikki Järvinen, Prof.

Heikki’s main research interests are in atmospheric modeling, data assimilation, and quantifying modeling uncertainties. Recently Heikki and his students have been working quite a lot on the question of objective tuning of atmospheric models – in fact, it constitutes a very tough inversion problem, not too distant to data assimilation which Heikki used to work a lot with in the past. Otherwise, Heikki is interested in further developing the meteorology curriculum here at the University of Helsinki, and supervising motivated MSc and PhD students.

List of publications

Jukka-Pekka

Jukka-Pekka Keskinen, Dr.

Jukka-Pekka Keskinen is working with EC-Earth Earth System Model, focusing on atmospheric aerosols as well as Coupled Model Intercomparison Project Phase 6 (CMIP6). In CMIP6, Jukka-Pekka is focusing on AerChemMIP experiments. He is also developing a marine organic aerosol (MOA) module in EC-Earth.

List of publications

filippo

Filippo Xausa, PhD student

Filippo is working with the global aerosol-climate ECHAM-HAM. His work consists of developing new emission modules, model evaluation, and model application to various natural and anthropogenic scenarios.

List of publications

Maarit

Maarit Raivonen, Dr.

I have a doctorate in the field of forest ecology. My main research interest is the carbon cycling in peatlands, especially methane emissions and their modeling. I also have experience in experimental studies on gas exchange of trees, focusing on reactive nitrogen oxides.

List of publications

victoria

Victoria Sinclair, Dr.

My current research covers a range of topics within dynamical and synoptic meteorology. Current specific topics of interest include the governing dynamics of synoptic-scale fronts, the interaction of mesoscale and synoptic-scale systems with the atmospheric boundary layer, low level jets, and the transport of moisture by weather systems to the polar regions. I use two numerical weather prediction models to address these questions; the Weather Research and Forecasting (WRF) model and Open Integrated Forecast System (OpenIFS).

List of publications

Former group members

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Ari Asmi, Dr.

My research concentrates on analyzing data sets of long and short-term aerosol-cloud interactions. Understanding the science behind the long measurement time series, data mining and model-to-measurement comparison. In these kinds of problems, the role of analysis tools, such as statistical methods and time-series analysis, is crucial.

List of publications

Sampo

Sampo Smolander, Dr.

Sampo Smolander is trained in Plant Ecology (M.Sc.) and Applied Mathematics (Ph.D.) and has done a 1 year PostDoc at University College London (in vegetation remote sensing). He works in vegetation modelling, boundary layer meteorology, programming, numerical algorithms, and training students in programming and scientific computing.

List of publications

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Henri Vuollekoski, Dr.

My main research interests and expertise are model and method development in atmospheric sciences, but I also do modeling from process level to global scales as well as data analysis. Additionally, I have a large supportive role in IT and database management.

List of publications

aapo

Aapo Malkamäki

Aapo Malkamäki is a summer worker in the ESM group. He has a background in physics and his work includes Earth System data analysis, as well as building analysis and visualization tools for global models.

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