People

Find out more about each group members research here
Heikki Järvinen

Heikki Järvinen is a professor and docent in meteorology. His research focuses on developing ensemble prediction and algorithmic parameter estimation techniques. A complete list of Heikki Järvinen's publications is here

Jouni Räisänen

Dr. Jouni Räisänen is a University lecturer and docent in meteorology. His research focuses on anthropogenic climate change,  interannual climate variability and the combined effects of these two on the evolution of climate that we observe in the real world. His research is mainly based on analysis of global and regional climate model simulations and reanalysis data sets. A complete list of Jouni Räisänen's publications is here

Marja Bister

Ph.D. Marja Bister is a University lecturer and docent in meteorology. Her research focuses on the fundamental aspects of atmospheric deep convection.  She is also interested in the physics of  tropical cyclones, particularly their intensity dependence on  environmental factors whether associated with climate or shorter timescale variations. A complete list of Marja Bister's publications is here.

Victoria Sinclair

Dr Victoria Sinclair (PhD) is an University lecturer and docent in meteorology. Her research primarily focuses on the dynamics of extra-tropical cyclones and how these weather systems will change in the future. Other topics of interest include heat waves, low-level jets, poleward moisture transport and transport of pollution and aerosol particles. In her research she uses numerical weather prediction models - OpenIFS and WRF - as well as reanalysis data sets and FLEXPART, a Lagrangian Dispersion model. A complete list of Victoria Sinclair's publications is here

Clément Bouvier

Clément Bouvier (PhD.) is a postdoctoral researcher. His research focuses on feature selection, data augmentation and active learning algorithms for Machine Learning. He combines these different methods to allow fast and stable processing of huge quantity of data. He is working of the Destination Earth project. A partial list of Clément Bouvier's publication is available here. A complete list can be found in his ORCID.

Lauri Tuppi

Lauri Tuppi (PhD) is a post-doctoral researcher in meteorology. His research focuses on developing and testing algorithmic tuning methods for closure parameters of numerical weather prediction (NWP) models. In his research he uses OpenIFS NWP model, OpenEPS ensemble prediction workflow manager, as well as the Ensemble Prediction and Parameter Estimation System (EPPES) tuning algorithm. Besides the research work he also participates in an EU project developing a Climate Adaptation Digital Twin of the Earth. A complete list of Lauri Tuppi's publications is here

Sándor István Mahó

Sándor István Mahó is a post-doctoral researcher in meteorology. His interests cover the dynamics of extratropical cyclones, numerical modelling of the atmosphere and tropical waves. His research focuses on the future predictability of hazardous weather in Europe by combining climate projections and ensemble weather forecasts. In his research he uses the OpenIFS forecast model and the OpenEPS ensemble prediction workflow manager as well as CMIP6 model output to generate initial conditions for OpenIFS. His publication list can be viewed in his ORCID.

Ángel Navarro Trastoy

Angel Navarro Trastoy (M.Sc.) is a doctoral candidate in atmospheric sciences. His research focuses on the impact of the neutral gas atmosphere in Global Navigation Satellite System (GNSS) signals and the development of new approaches to formatting the tropospheric slant delays. A complete list of Ángel Navarro Trastoy's publications is here.

 

Johannes Mikkola

Johannes Mikkola (MSc) is a doctoral student in meteorology. His research focuses on transport of aerosol from the boundary layer to the free-troposphere in mountainous regions. He studies which factors control the mountain venting using numerical weather prediction and aerosol transport models (WRF, FLEXPART, WRF-CHIMERE). A complete list of Johannes Mikkola's publications is here.

Maksym Vasiuta

Maksym Vasiuta (MSc) is a doctoral student in meteorology. His research focuses on modelling signal propagation in the Earth's atmosphere, which is used in analysing observations of Earth orbiting satellites. In his research, he mainly uses the OpenIFS NWP model and a dataset of ECMWF initial states to model the atmosphere, and the GROOPS toolkit from the Technical University of Graz (TUG) to analyse satellite observations and derive various products. A complete list of Maksym Vasiuta's publication is here.

Sanam Motlaghzadeh

Sanam Motlaghzadeh (MSc) is a doctoral student in atmospheric sciences. She works on the orbit determination of gravity satellites and Global Navigation Satellite System (GNSS) data. A complete list of Sanam Motlaghzadeh's publications is found here.

Joona Cornér

Joona Cornér (MSc) is a doctoral researcher in meteorology. He works in the Finnish Academy project STORMS which aims to identify and quantify measures related to extratropical cyclone intensity, variability and impacts in Europe. His research focuses on extra-tropical cyclone tracking, intensity and precursors. Joona uses mainly ERA5 reanalysis data in his research and makes use of statistical analysis tools and machine learning methods. A list of Joona Cornér's publications can be found here.

Daniel Köhler

Daniel Köhler (MSc) is a doctoral student in meteorology. His research focuses on the dynamics of atmospheric circulation and extratropical cyclones. His work includes studies on extreme extratropical cyclones, atmospheric dynamics in future climates, and estimating the contributions of sea surface temperature and sea ice concentration changes to future climate change. A complete list of Daniel Köhler's publication can be found on their ORCiD.

Juniper Tyree

Juniper Tyree (MSc, MEng) is a doctoral student in atmospheric sciences. Her research is focused on developing and analysing methods to safely and fearlessly apply lossy data compression to weather and climate simulation data. Juniper is passionate about open source, open science, and reproducibility. She is developing scientific software such as the cross-platform reproducible compression codecs using WebAssembly and the Online Laboratory for Climate Science and Meteorology. A partial list of Juniper Tyree's publication is available here. A partial list of Juniper Tyree's publication is available here. A complete list can be found on their ORCiD.

Antti Toropainen

Antti Toropainen is a doctoral researcher in meteorology. His research focuses on estimating the effect of climate change on observed mean temperature on a sub-monthly scale. In his research he uses observational weather station datasets together with global climate model (CMIP6) simulations.

Sara Tahvonen

Sara Tahvonen (MSc) is a doctoral researcher in meteorology. Her research is on large-scale atmospheric circulation patterns that cause extreme wind and precipitation in the present and future climates. With focus on North Europe and the Arctic, her work applies a range of methods to overcome the challenges of studying small-scale extremes with low resolution climate models. A complete list of her publications can be found here.

Oskari Rantala

Oskari Rantala (MSc) is a doctoral researcher in meteorology. He works on the Future Predictability of Hazardous Weather in Europe and in the Arctic project, funded by the Research Council of Finland. His research focuses on the predictability of future extra-tropical cyclones using idealized baroclinic wave simulations with the OpenIFS numerical weather prediction model. Oskari runs ensemble forecasts on the LUMI supercomputer as part of his research. A complete list of his publications can be found here.

Previous Group Members

Madeleine Ekblom (PhD) completed her PhD in 2023. Her thesis is "Tuning and Verification of Ensemble Forecasts". Madeleine works now at the Finnish Meteorological Institute in the Meteorological Research Applications group.

Irina Statnaia (PhD) now works at the Finnish Meteorological Institute in the Polar Meteorology and Climatology group.

Meri Virman (PhD) compeleted her PhD in 2021. Her thesis title is "Understanding the sensitivity of convection to free-tropospheric moisture". Meri now works at the Finnish Meteorological Institute in the Climate Change and Extreme Weather group.

Feyza Nur Özkan (B.Sc.) was a master's student in our group in 2020. Her research focused on identifying how sea surface temperatures affect the amount of moisture transported into the Arctic in the North Atlantic sector. In her research, she used OpenIFS numerical weather prediction model and reanalysis data sets.

Mika Rantanen (PhD) completed his PhD in 2020. His thesis title is "Diagnostic Studies of Extratropical Cyclones in the Present and Warmer Climate". Mika now works at the Finnish Meteorological Institute in the Climate Change and Extreme Weather group.

Minttu Tuononen (PhD) completed her PhD in 2019 while working at the Finnish Meteorological Institute but in close collaboration with the dynamic meteorology group. Her thesis title is "Meteorological conditions affecting renewable energy". She now works for Vaisala.

Olle Räty (PhD) completed his PhD in 2018. His thesis title is "Application of future climate projections in hydrological impact modeling".  Olle is now at the Finnish Meteorological Institute.

Laura Riuttanen (PhD) completed her PhD in 2017. Her thesis title is "Air pollutants: Regional transport, properties and effect on upper tropospheric humidity". Laura is now working in the education research and development group of INAR. Read more here: https://blogs.helsinki.fi/edu-team/

Päivi Haapanala (PhD) completed her PhD thesis in 2017. Her thesis title is "On the solar radiative effects of atmopsheric ice and dust". She is currently working in INAR/UHEL at the ACTRIS (Aerosol, Cloud and Trace Gases Research Infrastructure) Coordination office located in Finnish Meteorological Institute (FMI) in Helsinki.

Sol Kim (B.Sc) was a fulbright funded student in our group in 2015-2016.  He is now a PhD student at the University of California, Berkley working on atmospheric rivers.

Jussi Ylhäisi (PhD) completed his Phd thesis in 2014. His thesis title was  "Limitations of climate model simulations to support climate change adaptation". Jussi has been working in Finnish Meteorological Institute since he graduated.