Sasu Karttunen

Research Associate / Postdoc

Bern University of Applied Sciences (BFH)

Delft University of Technology (TU Delft)

Short Biography

I'm a scientist investigating the Earth system through large-scale data analysis and numerical computation. My main fields of expertise are model development, terabyte-scale spatio-temporal data analysis, turbulent transport processes, measurement processing techniques, and surface-atmosphere interactions.

Full CV

Academic Background

PhD in Physics

2020–2025

University of Helsinki

MSc in Meteorology

2020

University of Helsinki

BSc in Meteorology

2019

University of Helsinki

Professional Interests

Atmospheric Physics Spatiotemporal Data Statistical Data Analysis Large-Eddy Simulation Turbulence Urban Meteorology & Climate Surface-Atmosphere Interactions Urban Surface Modelling Cloud-Climate Interactions Remote sensing Signal Processing Machine Learning Time Series Analysis & Modelling Geospatial Analysis & Modelling Lidars Radars Satellite Observations

My Research

My current research is focused on the analysis of spatio-temporal variability in global liquid cloud cover using observational data. In my work, I utilise both ground-based lidars and satellite-based radars. My research aims to build harmonised observational datasets for global cloud cover analysis and further our understanding of changes in cloud cover in the changing climate.

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Featured Publications

Model Development

PALM-SLUrb v24.04: a single-layer urban canopy model for the PALM model system – model description and first evaluation

This paper presents PALM-SLUrb, a single-layer urban canopy model for the PALM model system, designed to simulate urban–atmosphere interactions without resolving flow around …

Sasu Karttunen

• Sep 5, 2025 • 1 min read

Quantifying the coastal urban surface layer structure using distributed temperature sensing in Helsinki, Finland

To study the complex structure of the lowest tens of metres of atmosphere in urban areas, measurement methods with great spatial and temporal coverage are needed. In our study, we …

Sasu Karttunen

• Apr 21, 2022 • 1 min read