Institute of Geography

Group Portrait

Martin Aregger

PhD student

Klimafolgen

E-Mail
martin.aregger@unibe.ch
Office
408
Postal Address
University of Bern
Institute of Geography
Climate Impacts
Hallerstrasse 12
CH-3012 Bern

PhD-Project

I work in collaboration with the radar division of MeteoSwiss. Further, my work is part of the Synergia Project scClim (Seamless coupling of kilometre-resolution weather predictions and climate simulations with hail impact assessments for multiple sectors) funded by the Swiss National Science Foundation. Within scClim, I use radar-based hail observations in combination with crowdsourced hail reports and hail-sensor measurements to validate the hail forecasting ability of the used numerical weather prediction models.

Currently, I am investigating the hail nowcasting potential of Differential Reflectivity columns. In the near future, I will further look into the potential of using machine-learning-based techniques on polarimetric radar data for the detection of hail.

Research Focus

My research focus is on improving the radar-based detection and sizing of hail in Switzerland. I am using dual-polarimetric radar data from the C-band weather radar network operated by MeteoSwiss to investigate multiple approaches for indirect hail detection and sizing.

Publications

Jump to: 2024 | 2023

2024

Hering, Alessandro; Nisi, Luca; Aregger, Martin; Boscacci, Marco; Clementi, Lorenzo; Germann, Urs (1 March 2024). Improvements of the object-based nowcasting system TRT for automatic thunderstorm and hail warnings in the Alpine area (Unpublished). In: 4th European Hail Workshop. Karslruhe. 05-07.03.2024.

Villinger, Leonie; Aregger, Martin; Brennan, Killian; Calanca, Pierluigi; Cui, Ruoyi; Martius, Olivia; Portmann, Raphael; Schär, Christoph; Schmid, Timo; Thurnherr, Iris; Velasquez, Patricio; Wernli, Heini; Wilhelm, Lena; Bresch, David N. (2024). Seamless coupling of kilometer-resolution weather predictions and climate simulations with hail impact assessments for multiple sectors (scClim) (Unpublished). In: 4th European Hail Workshop. Karslruhe. 05-07.03.2024.

Aregger, Martin; Martius, Olivia; Hering, Alessandro; Germann, Urs (2024). Differential reflectivity columns and hail-linking C-band radar-based estimated column characteristics to a uniquely large dataset of crowdsourced surface observations in Switzerland (Unpublished). In: 4th European Hail Workshop. Karslruhe. 05-07.03.2024.

Berzina, Stella; Wilhelm, Lena; Aregger, Martin Pius; Martius, Olivia (2024). Co-occurrence of hail and heavy precipitation in Switzerland (Unpublished). In: 4th European Hail Workshop. Karslruhe. 05-07.03.2024.

2023

Aichinger-Rosenberger, Matthias; Aregger, Martin; Kopp, Jérôme Jean; Soja, Benedikt (18 November 2023). Detection of convective storm signatures in GNSS-SNR. Two case studies from the summer of 2021 in Switzerland (Unpublished). In: Swiss Geoscience Meeting. Mendrisio (TI). 18.11.2023.

Aichinger‐Rosenberger, Matthias; Aregger, Martin; Kopp, Jerome; Soja, Benedikt (2023). Detecting Signatures of Convective Storm Events in GNSS‐SNR: Two Case Studies From Summer 2021 in Switzerland. Geophysical Research Letters, 50(21) American Geophysical Union 10.1029/2023GL104916