Reserach interest

• Stable Atmospheric Boundary Layer
• Marine Atmospheric Boundary Layer
• Polar Meteorology
• Atmospheric turbulence
• Air-ice-sea interactions
• Wind energy meteorology
• Uncrewed Aircraft Systems

Spring semester 2023:

• Practical Meteorology and Oceanography, GEOF232
• Field Course in Meteorology, GEOF322

Guest Lecturer for UNIS courses:

• Polar Meteorology and Climate, AGF-213
• The Arctic Atmospheric Boundary Layer and Local Climate Processes, AGF-350/850
• Sea-ice-air interaction II, AGF-311/811

2018

• Alexander Rautenberg; Stephan Kral; Joachim Reuder et al. (2018). The two ISOBAR Stable Boundary Layer Field Campaigns at Hailuoto, Finland in 2017 and 2018: Experimental Setup and First Results. (external link)
• Alexander Rautenberg; Stephan Kral; Joachim Reuder et al. (2018). Wind and Turbulence Measurements with RPA during the ISOBAR Campaign. (external link)
• Stephan Kral; Joachim Reuder; Timo Vihma et al. (2018). Innovative strategies for observations in the Arctic atmospheric boundary layer (ISOBAR)—The Hailuoto 2017 Campaign. (external link)
• Alexander Rautenberg; Stephan Kral; Joachim Reuder et al. (2018). Wind and Turbulence Measurements with RPA during the ISOBAR Campaign 2017. (external link)
• Alexander Rautenberg; Stephan Kral; Joachim Reuder et al. (2018). Wind and Turbulence Measurements with RPA during the ISOBAR Campaign 2017. (external link)
• Joachim Reuder; Stephan Kral; Line Båserud et al. (2018). The two ISOBAR Stable Boundary Layer Field Campains at Hailuoto, Finland in 2017 and 2018: Experimental Setup and First Results. (external link)
• Antonio Segales; ME Schneider; Jeffrey Basara et al. (2018). Advances in the Estimation of the Structure Function Parameter for Temperature Using a Small Unmanned Aircraft System. (external link)
• Stephan Kral; Joachim Reuder; Andrew Seidl et al. (2018). The ISOBAR project on stable boundary layers – The two campaigns on Hailuoto 2017 and 2018. (external link)
• Phillip Chilson; Brian Green; Elizabeth Pillar-Little et al. (2018). The Innovative Strategies for Observations in the Arctic Atmospheric Boundary LAyeR (ISOBAR) Field Campaign: Perspectives from the University of Oklahoma. (external link)
• Antonio Segales; Morgan Schneider; Jeffrey Basara et al. (2018). Advances in the Measurements of the Structure Function Parameter for Temperature Using a Small Unmanned Aircraft System. (external link)
• Joachim Reuder; Stephan Kral; Line Båserud et al. (2018). The Two ISOBAR Stable Boundary Layer Field Campains at Hailuoto, Finland in 2017 and 2018: Experimental Setup and First Results. (external link)
• Stephan Kral; Joachim Reuder; Line Båserud et al. (2018). RPAS observation on the structure and evolution of the Atmospheric Boundary Layer during the two ISOBAR field campaigns on Hailuoto, 2017 and 2018. (external link)
• Igor Esau; Richard Davy; Lars H. Smedsrud et al. (2018). BASIC:-Boundary Layers in the Arctic Atmosphere, Seas and Ice Dynamics - SKD Strategic Project January 2015 – December 2017. (external link)

2016

• Stephan T. Kral; Joachim Reuder; Stephanie Mayer et al. (2016). The ISOBAR project (2016–2018) – Observations on the stable polar Atmospheric Boundary Layer from Remotely Piloted Aircraft Systems. (external link)
• Stephan T. Kral; Marius Opsanger Jonassen; Joachim Reuder et al. (2016). SUMO operations in harsh environments. (external link)
• Joachim Reuder; Line Båserud; Stephan Kral et al. (2016). Proof of concept for wind turbine wake investigations with the RPAS SUMO. (external link)
• Joachim Reuder; Line Båserud; Marius Opsanger Jonassen et al. (2016). Exploring the potential of the RPA system SUMO for multipurpose boundary-layer missions during the BLLAST campaign. (external link)
• Joachim Reuder; Line Båserud; Stephan T. Kral et al. (2016). Proof of concept for turbulence measurements with the RPAS SUMO during the BLLAST campaign. (external link)
• Martin Flügge; Benny Svardal; Mostafa Bakhoday Paskyabi et al. (2016). OBLO instrumentation at FINO1. (external link)
• Marius Opsanger Jonassen; Stephan T. Kral (2016). UAVs in the Iceland Sea Project. (external link)
• Joachim Reuder; Line Båserud; Stephan T. Kral et al. (2016). Proof of concept for wind turbine wake investigations with the RPAS SUMO. (external link)
• Marius Opsanger Jonassen; Stephan T. Kral; Siiri Wickström et al. (2016). Observations on the Arctic Boundary Layer using the Small Unmanned Meteorological Observer (SUMO) during polar night. (external link)
• J.A. Hackerott; Mosttafa Bakhoday Paskyabi; Stephan T. Kral et al. (2016). Similarity analysis of turbulent transport and dissipation for momentum, temperature, moisture and CO2 during BLLAST. (external link)
• Line Båserud; Joachim Reuder; Marius Opsanger Jonassen et al. (2016). Proof of concept for turbulence measurements with the RPAS SUMO during the BLLAST campaign. (external link)
• Stephan T. Kral; Joachim Reuder; Line Båserud et al. (2016). SUMO operation during the BLLAST campaign - Experiences and results. (external link)
• Stephan T. Kral; Joachim Reuder; Stephanie Mayer et al. (2016). The ISOBAR project (2016-2018) - Observations on the stable polar Atmospheric Boundary Layer from Remotely Piloted Aircraft Systems. (external link)
• Stephan T. Kral; Joachim Reuder; Stephanie Mayer et al. (2016). The ISOBAR project (2016–2018) – Observations on the stable polar Atmospheric Boundary Layer from Remotely Piloted Aircraft Systems. (external link)

2021

• Frank Nilsen; Ilker Fer; Till Martin Baumann et al. (2021). PC-2 Winter Process Cruise (WPC). (external link)
• Stephan Kral; Joachim Reuder; Timo Pekka Vihma et al. (2021). The Innovative Strategies for Observations in the Arctic Atmospheric Boundary Layer Project (ISOBAR) — Unique fine-scale observations under stable and very stable conditions. (external link)
• Stephan Thomas Kral; Andrew Walter Seidl; Lukas Frank et al. (2021). Ship-based UAS and Remote Sensing Observations of the Lower Arctic Atmosphere. (external link)
• Stephan Thomas Kral; Joachim Reuder; Andrew Walter Seidl (2021). Atmospheric Processes (T1-2-3). (external link)
• Joachim Reuder; Mauro Ghirardelli; Stephan Thomas Kral et al. (2021). SUMO and SAMURAI – GFI/UiB drones for wind energy reserach. (external link)
• Stephan Thomas Kral; Joachim Reuder (2021). UAS based Atmospheric Research in Polar Regions — Experiences and Perspectives from Sea-ice and Ship-based Operations. (external link)

2019

• Gijs De Boer; Constantin Diehl; Jamey Jacob et al. (2019). Development of community, capabilities and understanding through unmanned aircraft-based atmospheric research: The LAPSE-RATE campaign. (external link)
• Alexander Rautenberg; Stephan Kral; Joachim Reuder et al. (2019). Wind- und Turbulenzmessung in stabiler Grenzschicht mit kleinen unbemannten Luftfahrzeugen während zweier ISOBAR Kampagnen im nördlichen Finnland. (external link)
• Lindsay Barbieri; Stephan Kral; Sean C.C. Bailey et al. (2019). Intercomparison of small unmanned aircraft system (sUAS) measurements for atmospheric science during the LAPSE-RATE campaign. (external link)
• Joachim Reuder; Stephan Kral; Andrew Seidl et al. (2019). The ISOBAR Project on stable boundary layers - Current status on data analysis and results. (external link)
• Alexander Rautenberg; Martin Schön; Kjell zum Berge et al. (2019). The Multi-Purpose Airborne Sensor Carrier MASC-3 for Wind and Turbulence Measurements in the Atmospheric Boundary Layer. (external link)
• Brian Greene; Stephan Kral; Line Båserud et al. (2019). Synthesis and validation of meteorological parameters from different RPAS during the ISOBAR campaigns at Hailuoto. (external link)

2022

• Torge Lorenz; Stephanie Mayer; Stephan Thomas Kral et al. (2022). The stable atmospheric boundary layer over snow-covered sea ice: Model evaluation with fine-scale ISOBAR18 observations. (external link)
• Brian R. Greene; Stephan Thomas Kral; Phillip B. Chilson et al. (2022). Gradient-Based Turbulence Estimates from Multicopter Profiles in the Arctic Stable Boundary Layer. (external link)
• Joachim Reuder; Stephan Thomas Kral (2022). Probing the stable boundary layer during the ISOBAR campaigns. (external link)
• Sara C. Pryor; Rebecca Jane Barthelmie; Jeremy Cadence et al. (2022). Atmospheric Drivers of Wind Turbine Blade Leading Edge Erosion: Review and Recommendations for Future Research. (external link)

2026

• Ida Haven; Hans Christian Steen-Larsen; Laura Jasmin Dietrich et al. (2026). On the accuracy of the measured and modelled surface latent and sensible heat flux in the interior of the Greenland Ice Sheet. (external link)

2023

• Mauro Ghirardelli; Stephan Thomas Kral; Nicolas Carlo Müller et al. (2023). Flow Structure around a Multicopter Drone: A Computational Fluid Dynamics Analysis for Sensor Placement Considerations. (external link)

2013

• Stephan T. Kral; Otto Hyvärinen; Andrea Vajda (2013). The impact of thunderstorm activity on the European air traffic system. (external link)

2017

• Martin Müller; Christian Lindenberg; Stephan Kral et al. (2017). Two new RPAS for atmospheric boundary layer research based on an off-the-shelf model aircraft and the Paparazzi autopilot. (external link)
• Stephan Kral; Joachim Reuder; Line Båserud et al. (2017). RPAS based observation on the Arctic Boundary Layer during the ISOBAR campaigns on Andøya and Hailuoto. (external link)
• João A. Hackerott; Mostafa Bakhoday Paskyabi; Joachim Reuder et al. (2017). A surface-layer study of the transport and dissipation of turbulent kinetic energy and the variances of temperature, humidity and CO2. (external link)

2020

• Brian Greene; Stephan Kral; Phillip B. Chilson et al. (2020). Analysis of Arctic Stable Boundary Layers during the ISOBAR Field Campaign. (external link)
• Joachim Reuder; Timo Vihma; Marius Opsanger Jonassen et al. (2020). Innovative Strategies for Observations in the Arctic Atmospheric Boundary Layer. (external link)
• Gijs de Boer; Constantin Diehl; Jamey Jacob et al. (2020). Unmanned Aircraft Get Together: The LAPSE-RATE Campaign. (external link)
• Marius Opsanger Jonassen; Siiri Wickström; John J. Cassano et al. (2020). Observations and simulations from an arctic fjord and valley environment in Svalbard. (external link)

2024

• Ásta Hannesdóttir; Stephan Thomas Kral; Joachim Reuder et al. (2024). Rain erosion atlas for wind turbine blades based on ERA5 and NORA3 for Scandinavia. (external link)
• Marie Lothon; Fabienne Lohou; Romain Roehrig et al. (2024). Measure and simulate turbulent fluxes over heterogeneous landscapes. (external link)
• Alexander Arvid Flem; Mauro Ghirardelli; Stephan Thomas Kral et al. (2024). Experimental Characterization of Propeller-Induced Flow (PIF) below a Multi-Rotor UAV. (external link)
• Liqin Jin; Mauro Ghirardelli; Jakob Mann et al. (2024). Rotary-wing drone-induced flow - Comparison of simulations with lidar measurements. (external link)

2025

• Ida Haven; Hans Christian Steen-Larsen; Laura Jasmin Dietrich et al. (2025). On the accuracy of the measured and modelled surface latent and sensible heat flux in the interior of the Greenland Ice Sheet. (external link)
• Mauro Ghirardelli; Stephan Thomas Kral; Etienne Cheynet et al. (2025). SAMURAI-S: Sonic Anemometer on a MUlti-Rotor drone for Atmospheric turbulence Investigation in a Sling load configuration. (external link)
• Ghirardelli Mauro; Stephan Thomas Kral; Etienne Cheynet et al. (2025). SAMURAI-S: Sonic Anemometer on a MUlti-Rotor drone for Atmospheric turbulence Investigation in a Sling load configuration. (external link)

2015

• Stephan T. Kral; Joachim Reuder (2015). Experimental Meteorology Group at the Geophysical Institute Bergen. (external link)
• Stephan T. Kral; Line Båserud; Joachim Reuder et al. (2015). Yaw angle estimation for the measurement of turbulent fluxes from the Small Unmanned Meteorological Observer (SUMO). (external link)
• Joachim Reuder; Line Båserud; Stephan T. Kral et al. (2015). Wind turbine wake measurements with the RPAS SUMO. (external link)
• Line Båserud; Joachim Reuder; Stephan T. Kral et al. (2015). Turbulence measurements from the RPAS SUMO during BLLAST. (external link)

2014

• Stephan T. Kral; Marius Opsanger Jonassen; Timo Pekka Vihma et al. (2014). Turbulent flux measurements in the Arctic Boundary Layer using the Small Unmanned Meteorological Observer (SUMO). (external link)
• Claus Doll; André Kühn; Anja Peters et al. (2014). Guidebook for Enhancing Resilience of European Road Transport in Extreme Weather Events. (external link)
• Annette Temme; Michael Kreuz; Thorsten Mühlhausen et al. (2014). Guidebook for Enhancing Resilience of European Air Traffic in Extreme Weather Events. (external link)
• Stephan T. Kral; Anna Sjöblom; Tiina Nygård (2014). Observations of summer turbulent surface fluxes in a High Arctic fjord. (external link)
• Thorsten Mühlhausen; Michael Kreuz; Annette Temme et al. (2014). Overview of Best Practices in Mitigating the Impact of Natural Disasters and Extreme Weather Phenomena on European Aviation – The MOWE-IT Project. (external link)

See a complete overview of publications in Cristin.