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  1. Employees

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Richard Hann

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Richard Hann

Senior Researcher, Director UAV Icing Lab
Department of Engineering Cybernetics

richard.hann@ntnu.no
D447, Elektro D+B2 Gløshaugen, Trondheim
ResearchGate Google Scholar Blog UAV Icing Lab
About Research Publications Teaching Outreach

About

Dr. Richard Hann is the director of the UAV Icing Lab and a researcher at the Norwegian University of Science and Technology (NTNU). He is one of the most prominent and internationally leading researchers in the field of in-flight icing of UAVs, UAS, RPAS, and eVTOL aircraft with more than 30 relevant publications in that field. Richard has more than 10 years of experience with numerical and experimental icing aerodynamics on drones, aircraft, and wind turbines. Richard graduated with excellence from the University of Stuttgart in Germany as an aerospace engineer in 2013 and obtained a PhD in UAV icing from NTNU in 2020. At NTNU, Richard is leading the UAV Icing Lab with five PhDs and several master's students. He also holds a position as lead aerodynamics engineer and shareholder at UBIQ Aerospace – a spin-off company from NTNU that is commercializing ice protection systems for UAVs. Richard is also promoting the application of drone technology in the Arctic with several ongoing projects in the fields of meteorology, glaciology, and atmospheric pollution in Svalbard.

Publications Richard Hann

Research Interests

  • Aerospace engineering
  • Aerodynamics
  • Thermodynamics
  • Atmospheric icing
  • Anti- & de-icing systems
  • Computational fluid dynamics (CFD)
  • Aeroacustics
  • Numerical simulations
  • Unmanned aerial vehicles (UAV)
  • Uncrewed aerial Systems (UAS)
  • Remotely piloted aircraft systems (RPAS)
  • Advanced air mobility (AAM)
  • Cold climate wind energy
  • Environmental forensics
  • Arctic fieldwork
  • Drones in the Arctic
  • Svalbard

Blog: www.richardhann.com

Lab: www.uavicinglab.com

Competencies

  • Atmospheric icing
  • Cold climate wind energy
  • Computational Fluid Dynamics (CFD)
  • Icing wind tunnel testing
  • Svalbard
  • UAV icing

Research

My main research is pivoting around using autonomous systems and UAVs in cold climate conditions. In particular, I focus on the hazard of atmospheric icing. Atmospheric in-flight icing occurs whenever an aircraft, UAV, or wind turbine blade encounters supercooled liquid droplets inside clouds or freezing precipitation (rain/drizzle). These droplets have a temperature below the freezing point but are in liquid. When these supercooled liquid droplets impact on a surface, they freeze and quickly accumulate into ice shapes. These ice accumulations alter the aerodynamic shape of critical surfaces such as wings and propellers, leading to substantial aerodynamic performance losses (e.g., 80% efficiency loss on a rotor within 120s of moderate icing). Icing is a severe hazard for UAVs and can quickly lead to the loss of the aircraft without suitable protection systems – as a result, UAVs are typically not operated beyond visual line of sight when there are cold temperatures and visible moisture in the air (e.g., clouds, fog). Icing can occur worldwide and at any time of the year but is especially prevalent in colder climates and higher latitudes. While in-flight icing is a mature research field in manned aviation, little research has been conducted on the topic before 2014. Due to the big differences in configuration, size, airspeed, and operational environment, solutions and methods developed for manned aviation are not easily transferred to UAVs. 

A second research focus of mine is the application of UAVs and drones in the Arctic, particularly in Svalbard. I mostly work with mapping of areas of interest in Svalbard, such as glaciers, permafrost, or sea ice. I collaborate with a wide range of researchers and support them in developing tailor-made solutions for using drones for their particular research questions. I also promote the general use of drones in Svalbard and offer support for drone-based fieldwork campaigns. 

  • UAV Icing Lab
  • UAV Lab
  • Personal blog

UAV Icing Lab

The UAV Icing Lab has the objective to generate knowledge to help the unmanned aircraft industry to operate in cold climate conditions.

UAV Lab

The unmanned aerial vehicles laboratory is a test facility for NTNU's research on unmanned aerial systems (UAS). The lab has access to various aircraft, ranging from small quadcopter drones to larger fixed-wing aircraft.

Arctic UAVs

I am an ambassador for promoting the use of drones and unmanned systems in the Arctic. My main area of activity is in Svalbard. I help other scientists to take their research airborne!

Publications

Atmospheric Ice Accretions, Aerodynamic Icing Penalties, and Ice Protection Systems on Unmanned Aerial Vehicles

PhD thesis on the topic of icing on unmanned aircraft.

Scientific Applications of Unmanned Vehicles in Svalbard

SESS Report 2020, Svalbard Integrated Arctic Earth Observing (SIOS)

UAV icing: the influence of airspeed and chord length on performance degradation

A key paper that highlights why UAVs are more sensitive and vulnerable to icing compared to manned aircraft.
  • Chronological
  • By category
  • All publications registered in NVA

2025

  • Wallace, S; Aiden, D; William, D. Harcourt; Hann, Richard; Leontidis, G. (2025) Exploring Segment Anything Foundation Models for Out of Domain Crevasse Drone Image Segmentation.
    Academic chapter/article/Conference paper
  • Lindner, Markus Jürgen; Hann, Richard. (2025) UAV Icing: Icing Effects on Control Surfaces.
    Academic chapter/article/Conference paper
  • Løw-Hansen, Bogdan; Hann, Richard; Gryte, Kristoffer; Johansen, Tor Arne; Deiler, Christoph. (2025) Modeling and identification of a small fixed-wing UAV using estimated aerodynamic angles. CEAS Aeronautical Journal
    Academic article
  • Lockhart, Kaelan; Sandino, Juan; Amarasingam, Narmilan; Hann, Richard; Bollard, Barbara; Gonzalez, Felipe. (2025) Unmanned Aerial Vehicles for Real-Time Vegetation Monitoring in Antarctica: A Review. Remote Sensing
    Academic literature review
  • Gajek, Wojciech; Luckman, Adrian; Harcourt, William D.; Pearce, Danni M; Hann, Richard. (2025) Utilizing Seismic Station Internal GPS for Tracking Surging Glacier Sliding Velocity. Journal of Glaciology
    Academic article

2024

  • Hann, Richard; Rodes, Nil; Gajek, Wojciech; Pearce, Danni M; Harcourt, William David. (2024) Drone-based mapping of calving rates of Borebreen in Svalbard.
    Other
  • Müller, Nicolas Carlo; Hann, Richard. (2024) UAV Icing: Comparison of the Influence of Icing on a Rotor in Vertical and Horizontal Flight.
    Academic chapter/article/Conference paper
  • Hann, Richard; gajek, wojciech; Pearce, Danni; Harcourt, William David. (2024) Drone-based glacier mapping of Borebreen in Svalbard, 2024. zenado
    Academic article
  • Virk, Muhammad Shakeel; Nygaard, Bjørn Egil; Pettersen, Jan-Arne; Khawaja, Hassan Abbas; Sveen, Svein-Erik; Han, Xingbo. (2024) 20th International Workshop on Atmospheric Icing of Structures (IWAIS 2024) Conference Proceedings. UiT Norges arktiske universitet UiT Norges arktiske universitet
    Academic anthology/Conference proceedings
  • Hann, Richard. (2024) 2nd International UAV Icing Workshop: Book of Abstracts. 2nd International UAV Icing Workshop 2nd International UAV Icing Workshop
    Academic anthology/Conference proceedings
  • Walthall, R; David, A; Farell, J; Hann, Richard; Johansen, Tor Arne. (2024) Aerospace Developments: Vol. 2.
    Feature article
  • Blanchard, G; Hann, Richard; Håkonsen, Verner; Benmeddour, A; Bennani, L; Rouzaud, O. (2024) Computational Modelling and Simulation Methods. NATO STO - Technical Report NATO STO - Technical Report
    Report
  • Müller, Nicolas Carlo; Hann, Richard. (2024) UAV Icing: Validation of an Ice Protection System Design for a Propeller.
    Academic chapter/article/Conference paper
  • Frey, Markus; Müller, Nicolas Carlo; Wallisch, Joachim; Hann, Richard. (2024) UAV Icing: Experimental Investigation and Numerical CHT Simulations of a Propeller Ice Protection System.
    Academic chapter/article/Conference paper
  • Hann, Richard. (2024) UAV Icing: Experimental Analysis of Icing on a Rotor of a UAV.
    Academic chapter/article/Conference paper
  • Løw-Hansen, Bogdan; Hann, Richard; Johansen, Tor Arne; Deiler, Christoph. (2024) Time-Domain System Identification and Validation of Small Fixed-Wing UAV Dynamics.
    Academic chapter/article/Conference paper
  • Deiler, Christoph; Veronesi, Federico; Raimondo, M; Mora, J; Garcia, Paloma; Frovel, M. (2024) Ice Detection Technologies. NATO STO - Technical Report NATO STO - Technical Report
    Report
  • Veronesi, Federico; Raimondo, M; Mingione, G; Martin, B; Hann, Richard; Håkonsen, Verner. (2024) Ice Protection Systems. NATO STO - Technical Report NATO STO - Technical Report
    Report
  • Hann, Richard; Müller, Nicolas Carlo; Wallisch, Joachim. (2024) UAV Icing: Impact Testing of Ice Fragments on a Propeller.
    Academic chapter/article/Conference paper
  • Laurendeau, E; Blanchet, Maxime; Zayni, Mohamad Karim; Hann, Richard; Radenac, E; Mussa, Ifrah. (2024) Summary From the 2nd AIAA Ice Prediction Workshop.
    Academic chapter/article/Conference paper
  • Hann, Richard; Borup, Kasper Trolle. (2024) Technical requirements for RPAS operations in cold climates.
    Academic chapter/article/Conference paper
  • Lindner, Markus Jürgen; Hann, Richard. (2024) UAV Icing: Comparison of Simulated 3D and 2D Ice Accretion on Wings.
    Academic chapter/article/Conference paper
  • Wallisch, Joachim; Lindner, Markus Jürgen; Petersen, Øyvind Wiig; Neunaber, Ingrid Johanne; Bracchi, Tania Kalogiannidis; Hearst, Robert Jason. (2024) UAV Icing: Aerodynamic Degradation Caused by Intercycle and Runback Ice Shapes on an RG-15 Airfoil. Drones
    Academic article

2023

  • Müller, Nicolas Carlo; Hann, Richard. (2023) UAV Icing: 3D simulations of propeller icing effects and anti-icing heat loads. SAE technical paper series
    Academic article
  • Ghirardelli, Mauro; Kral, Stephan Thomas; Müller, Nicolas Carlo; Hann, Richard; Cheynet, Etienne; Reuder, Joachim. (2023) Flow Structure around a Multicopter Drone: A Computational Fluid Dynamics Analysis for Sensor Placement Considerations. Drones
    Academic article
  • Wurst, Lukas; Wallisch, Joachim; Hann, Richard. (2023) CFD Icing Simulations on a Fixed-wing UAV Engine Inlet.
    Academic chapter/article/Conference paper
  • Enache, Adriana; Wallisch, Joachim; Beeck, Jeroen Van; Hendrick, Patrick; Hann, Richard. (2023) Ice Accretion: Image Post-Processing Measurement Techniques for 2D Ice Shapes. Aerospace
    Academic article
  • Lindner, Markus Jürgen; Wallisch, Joachim; Hann, Richard. (2023) UAV Icing: Numerical Simulation of Icing Effects on Wing and Empennage. SAE technical paper series
    Academic article
  • Wallisch, Joachim; Hann, Richard. (2023) UAV Icing: Intercycle Ice Effects on Aerodynamic Performance. SAE technical paper series
    Academic article
  • Hann, Richard; Müller, Nicolas Carlo; Wallisch, Joachim; Lindner, Markus Jürgen. (2023) UAV Icing: Experimental validation data for predicting ice shapes at low Reynolds numbers. SAE technical paper series
    Academic article
  • Hann, Richard. (2023) Numerical Simulation of In-Flight Icing of Unmanned Aerial Vehicles.
    Chapter
  • Cheung, Michael; Hann, Richard; Johansen, Tor Arne. (2023) UAV Icing: Icing Cases for Validation of Path Planning Method. SAE technical paper series
    Academic article
  • Högnadottir, Sif; Gryte, Kristoffer; Hann, Richard; Johansen, Tor Arne. (2023) Inner-Loop Control of Fixed-Wing Unmanned Aerial Vehicles in Icing Conditions.
    Academic chapter/article/Conference paper
  • Heramarwan, Henidya; Müller, Nicolas Carlo; Hann, Richard; Lutz, Thorsten. (2023) UAM Icing: Ice Accretion Experiments and CFD Icing Simulations on Rotors for eVTOL Unmanned Aircraft. SAE technical paper series
    Academic article
  • Løw-Hansen, Bogdan; Müller, Nicolas Carlo; Coates, Erlend Magnus Lervik; Johansen, Tor Arne; Hann, Richard. (2023) Identification of an Electric UAV Propulsion System in Icing Conditions. SAE technical paper series
    Academic article
  • Løw-Hansen, Bogdan; Hann, Richard; Stovner, Bård Nagy; Johansen, Tor Arne. (2023) UAV Icing: A Survey of Recent Developments in Ice Detection Methods.
    Academic chapter/article/Conference paper
  • Müller, Nicolas Carlo; Løw-Hansen, Bogdan; Borup, Kasper Trolle; Hann, Richard. (2023) UAV icing: Development of an ice protection system for the propeller of a small UAV. Cold Regions Science and Technology
    Academic article
  • Hann, Richard; Betlem, Peter; Deja, Kajetan; Ewertowski, Marek; Hartvich, Filip; Harm-Altstädter, B. (2023) Practical Guidelines for Scientific Application of Uncrewed Aerial Vehicles in Svalbard.
    Chapter

2022

  • Meier, Kilian; Hann, Richard; Skaloud, Jan; Garreau, Arthur. (2022) Wind Estimation with Multirotor UAVs. Atmosphere
    Academic article
  • Wallisch, Joachim; Hann, Richard. (2022) UAV Icing: Experimental Investigation of Ice Shedding Times with an Electrothermal De-Icing System.
    Academic chapter/article/Conference paper
  • Hansen, Bogdan Løw; Hann, Richard; Johansen, Tor Arne. (2022) UAV Icing: Ice Shedding Detection Methods for an Electrothermal De-Icing System.
    Academic chapter/article/Conference paper
  • Hann, Richard. (2022) Hazards of In-flight Icing on Unmanned Aircraft.
    Academic chapter/article/Conference paper
  • Oswald, Johannes Wolfgang; Enache, Adriana; Hann, Richard; Gertjan, Glabeke; Lutz, Thorsten. (2022) UAV Icing: Experimental and Numerical Study of Glaze Ice.
    Academic chapter/article/Conference paper
  • Müller, Nicolas Carlo; Hann, Richard. (2022) UAV Icing: A Performance Model for a UAV Propeller in Icing Conditions.
    Academic chapter/article/Conference paper
  • Cheung, Michael; Hann, Richard; Johansen, Tor Arne. (2022) UAV Icing: A Unified Icing Severity Index Derived from Performance Degradation.
    Academic chapter/article/Conference paper
  • Hann, Richard. (2022) UAV Icing: Challenges for computational fluid dynamic (CFD) tools.
    Academic chapter/article/Conference paper
  • Paulsen, Ingrid Marie Garfelt; Pedersen, Åshild Ønvik; Hann, Richard; Blanchet, Marie-Anne; Eischeid, Isabell; Hazendonk, Charlotte Maartje van. (2022) How Many Reindeer? UAV Surveys as an Alternative to Helicopter or Ground Surveys for Estimating Population Abundance in Open Landscapes. Remote Sensing
    Academic article
  • Högnadottir, Sif; Johansen, Tor Arne; Hann, Richard; Gryte, Kristoffer. (2022) Inner Loop Adaptive Control of Fixed-Wing Unmanned Aerial Vehicles in Icing Conditions. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
    Masters thesis
  • Hann, Richard; Betlem, Peter; Deja, Kajetan; Hartvich, Filip; Jonassen, Marius Opsanger; Lampert, Astrid. (2022) Update to Scientific Applications of Unmanned Vehicles in Svalbard.
    Chapter

2021

  • Haaland, Ole Max; Wenz, Andreas Wolfgang; Gryte, Kristoffer; Hann, Richard; Johansen, Tor Arne. (2021) Detection and isolation of propeller icing and electric propulsion system faults in fixed-wing UAVs. International Conference on Unmanned Aircraft Systems (ICUAS)
    Academic article
  • Dachauer, Armin; Hann, Richard; Hodson, Andrew. (2021) Aerodynamic roughness length of crevassed tidewater glaciers from UAV mapping. The Cryosphere
    Academic article
  • Jawak, Shridhar D.; Andersen, Bo Nyborg; Pohjola, Veijo A; Godøy, Øystein; Hübner, Christiane; Jennings, Inger. (2021) SIOS’s Earth Observation (EO), Remote Sensing (RS), and operational activities in response to COVID-19. Remote Sensing
    Academic article
  • Hann, Richard; Enache, Adriana; Nielsen, Mikkel Cornelius; Stovner, Bård Nagy; Beeck, Jeroen Van; Johansen, Tor Arne. (2021) Experimental Heat Loads for Electrothermal Anti-Icing and De-Icing on UAVs. Aerospace
    Academic article
  • Sørensen, Kim Lynge; Borup, Kasper Trolle; Hann, Richard; Bernstein, B.; Hansbø, Morten. (2021) UAV Atmospheric Icing Limitations: Climate Report for Norway and Surrounding Regions. UBIQ Aerospace UBIQ Aerospace
    Report
  • Hann, Richard; Johansen, Tor Arne. (2021) UAV icing: the influence of airspeed and chord length on performance degradation. Aircraft Engineering and Aerospace Technology
    Academic article
  • Hann, Richard; Altstädter, Barbara; Betlem, Peter; Deja, Kajetan; Dragańska-Deja, ‪Katarzyna; Ewertowski, Marek. (2021) Scientific Applications of Unmanned Vehicles in Svalbard.
    Chapter
  • Müller, Nicolas Carlo; Hann, Richard; Lutz, Thorsten. (2021) UAV Icing: Numerical Simulation of Propeller Ice Accretion.
    Academic chapter/article/Conference paper
  • Hermanson, Mark H.; Isaksson, Elisabeth; Hann, Richard; Ruggirello, Rachel M.; Teixeira, Camilla; Muir, Derek C.G.. (2021) Historic Atmospheric Organochlorine Pesticide and Halogenated Industrial Compound Inputs to Glacier Ice Cores in Antarctica and the Arctic. ACS Earth and Space Chemistry
    Academic article

2020

  • Narum, Edvard Frimann Løes; Hann, Richard; Johansen, Tor Arne. (2020) Optimal Mission Planning for Fixed-Wing UAVs with Electro-Thermal Icing Protection and Hybrid-Electric Power Systems.
    Academic chapter/article/Conference paper
  • Hann, Richard; Johansen, Tor Arne. (2020) Unsettled Topics in Unmanned Aerial Vehicle Icing. Society of Automotive Engineers Society of Automotive Engineers
    Report
  • Hermanson, Mark H; Isaksson, Elisabeth; Hann, Richard; Teixeira, Camilla; Muir, Derek CG. (2020) Deposition of Polychlorinated Biphenyls to Firn and Ice Cores at Opposite Polar Sites: Site M, Dronning Maud Land, Antarctica, and Holtedahlfonna, Svalbard. ACS Earth and Space Chemistry
    Academic article
  • Hann, Richard; Garreau, Arthur Oliver Charles. (2020) Validation and Application of Novel Wind Estimation Methods with Quadcopter UAVs in the Arctic. University Centre in Svalbard (UNIS) University Centre in Svalbard (UNIS)
    Masters thesis
  • Wallisch, Joachim; Hann, Richard. (2020) Design of a low-speed icing wind tunnel for UAVs.
    Academic chapter/article/Conference paper
  • Hovenburg, Anthony Reinier; Andrade, Fabio Augusto de Alcantara; Hann, Richard; Rodin, Christopher D; Arne, Johansen Tor; Storvold, Rune. (2020) Long-range path planning using an aircraft performance model for battery-powered sUAS equipped with icing protection system. IEEE Journal on Miniaturization for Air and Space Systems (J-MASS)
    Academic article
  • Hovenburg, Anthony Reinier; Andrade, Fabio Augusto de Alcantara; Hann, Richard; Rodin, Christopher D; Johansen, Tor Arne; Storvold, Rune. (2020) Long range path planning using an aircraft performance model for battery powered sUAS equipped with icing protection system. IEEE Journal on Miniaturization for Air and Space Systems (J-MASS)
    Academic article
  • Wallisch, Joachim; Hann, Richard. (2020) Design of a Low-Speed Icing Wind Tunnel for UAVs. University of Stuttgart University of Stuttgart
    Masters thesis
  • Hermanson, Mark H.; Isaksson, Elisabeth; Hann, Richard; Teixeira, Camilla; Muir, Derek C.G.. (2020) Atmospheric Deposition of Organochlorine Pesticides and Industrial Compounds to Seasonal Surface Snow at Four Glacier Sites on Svalbard, 2013-2014. Environmental Science and Technology
    Academic article
  • Müller, Nicolas Carlo; Hann, Richard. (2020) Numerical simulation of the ice accretion on a propeller of a small fixed-wing UAV. University of Stuttgart University of Stuttgart
    Masters thesis
  • Hann, Richard; Hearst, R. Jason; Sætran, Lars Roar; Bracchi, Tania. (2020) Experimental and numerical icing penalties of an S826 airfoil at low Reynolds numbers. Aerospace
    Academic article

2019

  • Hann, Richard; Hermanson, Mark H. (2019) Derivation of flow rate and calibration method for high-volume air samplers. Atmospheric Measurement Techniques
    Academic article
  • Hann, Richard. (2019) UAV Icing: Ice Accretion Experiments and Validation. SAE technical paper series
    Academic article
  • Hann, Richard; Borup, Kasper Trolle; Zolich, Artur Piotr; Sørensen, Kim Lynge; Vestad, Håvard Nitter; Steinert, Martin. (2019) Experimental Investigations of an Icing Protection System for UAVs. SAE technical paper series
    Academic article
  • Hann, Richard. (2019) UAV Icing: Comparison of LEWICE and FENSAP-ICE for Anti-Icing Loads.
    Academic chapter/article/Conference paper
  • Winter, Adrian; Hann, Richard; Wenz, Andreas Wolfgang; Gryte, Kristoffer; Johansen, Tor Arne. (2019) Stability of a Flying Wing UAV in Icing Conditions. EUCASS Proceedings Series
    Academic article
  • Fajt, Nicolas; Hann, Richard. (2019) The Influence of Meteorological Conditions on the Icing Performance Penalties on a UAV Airfoil. EUCASS Proceedings Series
    Popular scientific article

2018

  • Gryte, Kristoffer; Hann, Richard; Alam, Mushfiqul; Rohac, Jan; Johansen, Tor Arne; Fossen, Thor I.. (2018) Aerodynamic modeling of the Skywalker X8 Fixed-Wing Unmanned Aerial Vehicle.
    Academic chapter/article/Conference paper
  • Hann, Richard. (2018) UAV Icing: Comparison of LEWICE and FENSAP-ICE for Ice Accretion and Performance Degradation.
    Academic chapter/article/Conference paper

2017

  • Hann, Richard; Wenz, Andreas Wolfgang; Gryte, Kristoffer; Johansen, Tor Arne. (2017) Impact of atmospheric icing on UAV aerodynamic performance.
    Academic chapter/article/Conference paper

2016

  • Hermanson, Mark H; Hann, Richard; Johnson, Glenn W. (2016) Polychlorinated Biphenyls in tree bark near former manufacturing and incineration facilities in Sauget, Illinois, United States. Environmental Science and Technology
    Academic article

Journal publications

  • Løw-Hansen, Bogdan; Hann, Richard; Gryte, Kristoffer; Johansen, Tor Arne; Deiler, Christoph. (2025) Modeling and identification of a small fixed-wing UAV using estimated aerodynamic angles. CEAS Aeronautical Journal
    Academic article
  • Lockhart, Kaelan; Sandino, Juan; Amarasingam, Narmilan; Hann, Richard; Bollard, Barbara; Gonzalez, Felipe. (2025) Unmanned Aerial Vehicles for Real-Time Vegetation Monitoring in Antarctica: A Review. Remote Sensing
    Academic literature review
  • Gajek, Wojciech; Luckman, Adrian; Harcourt, William D.; Pearce, Danni M; Hann, Richard. (2025) Utilizing Seismic Station Internal GPS for Tracking Surging Glacier Sliding Velocity. Journal of Glaciology
    Academic article
  • Hann, Richard; gajek, wojciech; Pearce, Danni; Harcourt, William David. (2024) Drone-based glacier mapping of Borebreen in Svalbard, 2024. zenado
    Academic article
  • Walthall, R; David, A; Farell, J; Hann, Richard; Johansen, Tor Arne. (2024) Aerospace Developments: Vol. 2.
    Feature article
  • Wallisch, Joachim; Lindner, Markus Jürgen; Petersen, Øyvind Wiig; Neunaber, Ingrid Johanne; Bracchi, Tania Kalogiannidis; Hearst, Robert Jason. (2024) UAV Icing: Aerodynamic Degradation Caused by Intercycle and Runback Ice Shapes on an RG-15 Airfoil. Drones
    Academic article
  • Müller, Nicolas Carlo; Hann, Richard. (2023) UAV Icing: 3D simulations of propeller icing effects and anti-icing heat loads. SAE technical paper series
    Academic article
  • Ghirardelli, Mauro; Kral, Stephan Thomas; Müller, Nicolas Carlo; Hann, Richard; Cheynet, Etienne; Reuder, Joachim. (2023) Flow Structure around a Multicopter Drone: A Computational Fluid Dynamics Analysis for Sensor Placement Considerations. Drones
    Academic article
  • Enache, Adriana; Wallisch, Joachim; Beeck, Jeroen Van; Hendrick, Patrick; Hann, Richard. (2023) Ice Accretion: Image Post-Processing Measurement Techniques for 2D Ice Shapes. Aerospace
    Academic article
  • Lindner, Markus Jürgen; Wallisch, Joachim; Hann, Richard. (2023) UAV Icing: Numerical Simulation of Icing Effects on Wing and Empennage. SAE technical paper series
    Academic article
  • Wallisch, Joachim; Hann, Richard. (2023) UAV Icing: Intercycle Ice Effects on Aerodynamic Performance. SAE technical paper series
    Academic article
  • Hann, Richard; Müller, Nicolas Carlo; Wallisch, Joachim; Lindner, Markus Jürgen. (2023) UAV Icing: Experimental validation data for predicting ice shapes at low Reynolds numbers. SAE technical paper series
    Academic article
  • Cheung, Michael; Hann, Richard; Johansen, Tor Arne. (2023) UAV Icing: Icing Cases for Validation of Path Planning Method. SAE technical paper series
    Academic article
  • Heramarwan, Henidya; Müller, Nicolas Carlo; Hann, Richard; Lutz, Thorsten. (2023) UAM Icing: Ice Accretion Experiments and CFD Icing Simulations on Rotors for eVTOL Unmanned Aircraft. SAE technical paper series
    Academic article
  • Løw-Hansen, Bogdan; Müller, Nicolas Carlo; Coates, Erlend Magnus Lervik; Johansen, Tor Arne; Hann, Richard. (2023) Identification of an Electric UAV Propulsion System in Icing Conditions. SAE technical paper series
    Academic article
  • Müller, Nicolas Carlo; Løw-Hansen, Bogdan; Borup, Kasper Trolle; Hann, Richard. (2023) UAV icing: Development of an ice protection system for the propeller of a small UAV. Cold Regions Science and Technology
    Academic article
  • Meier, Kilian; Hann, Richard; Skaloud, Jan; Garreau, Arthur. (2022) Wind Estimation with Multirotor UAVs. Atmosphere
    Academic article
  • Paulsen, Ingrid Marie Garfelt; Pedersen, Åshild Ønvik; Hann, Richard; Blanchet, Marie-Anne; Eischeid, Isabell; Hazendonk, Charlotte Maartje van. (2022) How Many Reindeer? UAV Surveys as an Alternative to Helicopter or Ground Surveys for Estimating Population Abundance in Open Landscapes. Remote Sensing
    Academic article
  • Haaland, Ole Max; Wenz, Andreas Wolfgang; Gryte, Kristoffer; Hann, Richard; Johansen, Tor Arne. (2021) Detection and isolation of propeller icing and electric propulsion system faults in fixed-wing UAVs. International Conference on Unmanned Aircraft Systems (ICUAS)
    Academic article
  • Dachauer, Armin; Hann, Richard; Hodson, Andrew. (2021) Aerodynamic roughness length of crevassed tidewater glaciers from UAV mapping. The Cryosphere
    Academic article
  • Jawak, Shridhar D.; Andersen, Bo Nyborg; Pohjola, Veijo A; Godøy, Øystein; Hübner, Christiane; Jennings, Inger. (2021) SIOS’s Earth Observation (EO), Remote Sensing (RS), and operational activities in response to COVID-19. Remote Sensing
    Academic article
  • Hann, Richard; Enache, Adriana; Nielsen, Mikkel Cornelius; Stovner, Bård Nagy; Beeck, Jeroen Van; Johansen, Tor Arne. (2021) Experimental Heat Loads for Electrothermal Anti-Icing and De-Icing on UAVs. Aerospace
    Academic article
  • Hann, Richard; Johansen, Tor Arne. (2021) UAV icing: the influence of airspeed and chord length on performance degradation. Aircraft Engineering and Aerospace Technology
    Academic article
  • Hermanson, Mark H.; Isaksson, Elisabeth; Hann, Richard; Ruggirello, Rachel M.; Teixeira, Camilla; Muir, Derek C.G.. (2021) Historic Atmospheric Organochlorine Pesticide and Halogenated Industrial Compound Inputs to Glacier Ice Cores in Antarctica and the Arctic. ACS Earth and Space Chemistry
    Academic article
  • Hermanson, Mark H; Isaksson, Elisabeth; Hann, Richard; Teixeira, Camilla; Muir, Derek CG. (2020) Deposition of Polychlorinated Biphenyls to Firn and Ice Cores at Opposite Polar Sites: Site M, Dronning Maud Land, Antarctica, and Holtedahlfonna, Svalbard. ACS Earth and Space Chemistry
    Academic article
  • Hovenburg, Anthony Reinier; Andrade, Fabio Augusto de Alcantara; Hann, Richard; Rodin, Christopher D; Arne, Johansen Tor; Storvold, Rune. (2020) Long-range path planning using an aircraft performance model for battery-powered sUAS equipped with icing protection system. IEEE Journal on Miniaturization for Air and Space Systems (J-MASS)
    Academic article
  • Hovenburg, Anthony Reinier; Andrade, Fabio Augusto de Alcantara; Hann, Richard; Rodin, Christopher D; Johansen, Tor Arne; Storvold, Rune. (2020) Long range path planning using an aircraft performance model for battery powered sUAS equipped with icing protection system. IEEE Journal on Miniaturization for Air and Space Systems (J-MASS)
    Academic article
  • Hermanson, Mark H.; Isaksson, Elisabeth; Hann, Richard; Teixeira, Camilla; Muir, Derek C.G.. (2020) Atmospheric Deposition of Organochlorine Pesticides and Industrial Compounds to Seasonal Surface Snow at Four Glacier Sites on Svalbard, 2013-2014. Environmental Science and Technology
    Academic article
  • Hann, Richard; Hearst, R. Jason; Sætran, Lars Roar; Bracchi, Tania. (2020) Experimental and numerical icing penalties of an S826 airfoil at low Reynolds numbers. Aerospace
    Academic article
  • Hann, Richard; Hermanson, Mark H. (2019) Derivation of flow rate and calibration method for high-volume air samplers. Atmospheric Measurement Techniques
    Academic article
  • Hann, Richard. (2019) UAV Icing: Ice Accretion Experiments and Validation. SAE technical paper series
    Academic article
  • Hann, Richard; Borup, Kasper Trolle; Zolich, Artur Piotr; Sørensen, Kim Lynge; Vestad, Håvard Nitter; Steinert, Martin. (2019) Experimental Investigations of an Icing Protection System for UAVs. SAE technical paper series
    Academic article
  • Winter, Adrian; Hann, Richard; Wenz, Andreas Wolfgang; Gryte, Kristoffer; Johansen, Tor Arne. (2019) Stability of a Flying Wing UAV in Icing Conditions. EUCASS Proceedings Series
    Academic article
  • Fajt, Nicolas; Hann, Richard. (2019) The Influence of Meteorological Conditions on the Icing Performance Penalties on a UAV Airfoil. EUCASS Proceedings Series
    Popular scientific article
  • Hermanson, Mark H; Hann, Richard; Johnson, Glenn W. (2016) Polychlorinated Biphenyls in tree bark near former manufacturing and incineration facilities in Sauget, Illinois, United States. Environmental Science and Technology
    Academic article

Books

  • Virk, Muhammad Shakeel; Nygaard, Bjørn Egil; Pettersen, Jan-Arne; Khawaja, Hassan Abbas; Sveen, Svein-Erik; Han, Xingbo. (2024) 20th International Workshop on Atmospheric Icing of Structures (IWAIS 2024) Conference Proceedings. UiT Norges arktiske universitet UiT Norges arktiske universitet
    Academic anthology/Conference proceedings
  • Hann, Richard. (2024) 2nd International UAV Icing Workshop: Book of Abstracts. 2nd International UAV Icing Workshop 2nd International UAV Icing Workshop
    Academic anthology/Conference proceedings

Part of book/report

  • Wallace, S; Aiden, D; William, D. Harcourt; Hann, Richard; Leontidis, G. (2025) Exploring Segment Anything Foundation Models for Out of Domain Crevasse Drone Image Segmentation.
    Academic chapter/article/Conference paper
  • Lindner, Markus Jürgen; Hann, Richard. (2025) UAV Icing: Icing Effects on Control Surfaces.
    Academic chapter/article/Conference paper
  • Hann, Richard; Rodes, Nil; Gajek, Wojciech; Pearce, Danni M; Harcourt, William David. (2024) Drone-based mapping of calving rates of Borebreen in Svalbard.
    Other
  • Müller, Nicolas Carlo; Hann, Richard. (2024) UAV Icing: Comparison of the Influence of Icing on a Rotor in Vertical and Horizontal Flight.
    Academic chapter/article/Conference paper
  • Müller, Nicolas Carlo; Hann, Richard. (2024) UAV Icing: Validation of an Ice Protection System Design for a Propeller.
    Academic chapter/article/Conference paper
  • Frey, Markus; Müller, Nicolas Carlo; Wallisch, Joachim; Hann, Richard. (2024) UAV Icing: Experimental Investigation and Numerical CHT Simulations of a Propeller Ice Protection System.
    Academic chapter/article/Conference paper
  • Hann, Richard. (2024) UAV Icing: Experimental Analysis of Icing on a Rotor of a UAV.
    Academic chapter/article/Conference paper
  • Løw-Hansen, Bogdan; Hann, Richard; Johansen, Tor Arne; Deiler, Christoph. (2024) Time-Domain System Identification and Validation of Small Fixed-Wing UAV Dynamics.
    Academic chapter/article/Conference paper
  • Hann, Richard; Müller, Nicolas Carlo; Wallisch, Joachim. (2024) UAV Icing: Impact Testing of Ice Fragments on a Propeller.
    Academic chapter/article/Conference paper
  • Laurendeau, E; Blanchet, Maxime; Zayni, Mohamad Karim; Hann, Richard; Radenac, E; Mussa, Ifrah. (2024) Summary From the 2nd AIAA Ice Prediction Workshop.
    Academic chapter/article/Conference paper
  • Hann, Richard; Borup, Kasper Trolle. (2024) Technical requirements for RPAS operations in cold climates.
    Academic chapter/article/Conference paper
  • Lindner, Markus Jürgen; Hann, Richard. (2024) UAV Icing: Comparison of Simulated 3D and 2D Ice Accretion on Wings.
    Academic chapter/article/Conference paper
  • Wurst, Lukas; Wallisch, Joachim; Hann, Richard. (2023) CFD Icing Simulations on a Fixed-wing UAV Engine Inlet.
    Academic chapter/article/Conference paper
  • Hann, Richard. (2023) Numerical Simulation of In-Flight Icing of Unmanned Aerial Vehicles.
    Chapter
  • Högnadottir, Sif; Gryte, Kristoffer; Hann, Richard; Johansen, Tor Arne. (2023) Inner-Loop Control of Fixed-Wing Unmanned Aerial Vehicles in Icing Conditions.
    Academic chapter/article/Conference paper
  • Løw-Hansen, Bogdan; Hann, Richard; Stovner, Bård Nagy; Johansen, Tor Arne. (2023) UAV Icing: A Survey of Recent Developments in Ice Detection Methods.
    Academic chapter/article/Conference paper
  • Hann, Richard; Betlem, Peter; Deja, Kajetan; Ewertowski, Marek; Hartvich, Filip; Harm-Altstädter, B. (2023) Practical Guidelines for Scientific Application of Uncrewed Aerial Vehicles in Svalbard.
    Chapter
  • Wallisch, Joachim; Hann, Richard. (2022) UAV Icing: Experimental Investigation of Ice Shedding Times with an Electrothermal De-Icing System.
    Academic chapter/article/Conference paper
  • Hansen, Bogdan Løw; Hann, Richard; Johansen, Tor Arne. (2022) UAV Icing: Ice Shedding Detection Methods for an Electrothermal De-Icing System.
    Academic chapter/article/Conference paper
  • Hann, Richard. (2022) Hazards of In-flight Icing on Unmanned Aircraft.
    Academic chapter/article/Conference paper
  • Oswald, Johannes Wolfgang; Enache, Adriana; Hann, Richard; Gertjan, Glabeke; Lutz, Thorsten. (2022) UAV Icing: Experimental and Numerical Study of Glaze Ice.
    Academic chapter/article/Conference paper
  • Müller, Nicolas Carlo; Hann, Richard. (2022) UAV Icing: A Performance Model for a UAV Propeller in Icing Conditions.
    Academic chapter/article/Conference paper
  • Cheung, Michael; Hann, Richard; Johansen, Tor Arne. (2022) UAV Icing: A Unified Icing Severity Index Derived from Performance Degradation.
    Academic chapter/article/Conference paper
  • Hann, Richard. (2022) UAV Icing: Challenges for computational fluid dynamic (CFD) tools.
    Academic chapter/article/Conference paper
  • Hann, Richard; Betlem, Peter; Deja, Kajetan; Hartvich, Filip; Jonassen, Marius Opsanger; Lampert, Astrid. (2022) Update to Scientific Applications of Unmanned Vehicles in Svalbard.
    Chapter
  • Hann, Richard; Altstädter, Barbara; Betlem, Peter; Deja, Kajetan; Dragańska-Deja, ‪Katarzyna; Ewertowski, Marek. (2021) Scientific Applications of Unmanned Vehicles in Svalbard.
    Chapter
  • Müller, Nicolas Carlo; Hann, Richard; Lutz, Thorsten. (2021) UAV Icing: Numerical Simulation of Propeller Ice Accretion.
    Academic chapter/article/Conference paper
  • Narum, Edvard Frimann Løes; Hann, Richard; Johansen, Tor Arne. (2020) Optimal Mission Planning for Fixed-Wing UAVs with Electro-Thermal Icing Protection and Hybrid-Electric Power Systems.
    Academic chapter/article/Conference paper
  • Wallisch, Joachim; Hann, Richard. (2020) Design of a low-speed icing wind tunnel for UAVs.
    Academic chapter/article/Conference paper
  • Hann, Richard. (2019) UAV Icing: Comparison of LEWICE and FENSAP-ICE for Anti-Icing Loads.
    Academic chapter/article/Conference paper
  • Gryte, Kristoffer; Hann, Richard; Alam, Mushfiqul; Rohac, Jan; Johansen, Tor Arne; Fossen, Thor I.. (2018) Aerodynamic modeling of the Skywalker X8 Fixed-Wing Unmanned Aerial Vehicle.
    Academic chapter/article/Conference paper
  • Hann, Richard. (2018) UAV Icing: Comparison of LEWICE and FENSAP-ICE for Ice Accretion and Performance Degradation.
    Academic chapter/article/Conference paper
  • Hann, Richard; Wenz, Andreas Wolfgang; Gryte, Kristoffer; Johansen, Tor Arne. (2017) Impact of atmospheric icing on UAV aerodynamic performance.
    Academic chapter/article/Conference paper

Report

  • Blanchard, G; Hann, Richard; Håkonsen, Verner; Benmeddour, A; Bennani, L; Rouzaud, O. (2024) Computational Modelling and Simulation Methods. NATO STO - Technical Report NATO STO - Technical Report
    Report
  • Deiler, Christoph; Veronesi, Federico; Raimondo, M; Mora, J; Garcia, Paloma; Frovel, M. (2024) Ice Detection Technologies. NATO STO - Technical Report NATO STO - Technical Report
    Report
  • Veronesi, Federico; Raimondo, M; Mingione, G; Martin, B; Hann, Richard; Håkonsen, Verner. (2024) Ice Protection Systems. NATO STO - Technical Report NATO STO - Technical Report
    Report
  • Högnadottir, Sif; Johansen, Tor Arne; Hann, Richard; Gryte, Kristoffer. (2022) Inner Loop Adaptive Control of Fixed-Wing Unmanned Aerial Vehicles in Icing Conditions. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
    Masters thesis
  • Sørensen, Kim Lynge; Borup, Kasper Trolle; Hann, Richard; Bernstein, B.; Hansbø, Morten. (2021) UAV Atmospheric Icing Limitations: Climate Report for Norway and Surrounding Regions. UBIQ Aerospace UBIQ Aerospace
    Report
  • Hann, Richard; Johansen, Tor Arne. (2020) Unsettled Topics in Unmanned Aerial Vehicle Icing. Society of Automotive Engineers Society of Automotive Engineers
    Report
  • Hann, Richard; Garreau, Arthur Oliver Charles. (2020) Validation and Application of Novel Wind Estimation Methods with Quadcopter UAVs in the Arctic. University Centre in Svalbard (UNIS) University Centre in Svalbard (UNIS)
    Masters thesis
  • Wallisch, Joachim; Hann, Richard. (2020) Design of a Low-Speed Icing Wind Tunnel for UAVs. University of Stuttgart University of Stuttgart
    Masters thesis
  • Müller, Nicolas Carlo; Hann, Richard. (2020) Numerical simulation of the ice accretion on a propeller of a small fixed-wing UAV. University of Stuttgart University of Stuttgart
    Masters thesis

Teaching

  • Unmanned Aerial Vehicle: Environmental Applications – Advanced Level, guest lecturer, University of Silesia in Katowice, 2022.
  • AGF-350/850 The Arctic Atmospheric Boundary Layer and Local Climate Processes, 10 ECTS, guest lecturer. University Centre in Svalbard (UNIS), 2020 & 2022.
  • AG-204/221 The Physical Geography of Svalbard, 15 ECTS, guest lecturer. University Centre in Svalbard (UNIS), 2019 & 2021.
  • TRST Terrestrial Remote Sensing Training, guest lecturer, Svalbard Integrated Earth Observing System (SIOS), 2020.
  • AMS Advanced Modeling & Simulation Seminar Series, guest speaker. National Aeronautics and Space Administration (NASA), 2020.
  • TTK4 Unmanned Aerial Vehicles, guest lecturer. Norwegian University of Science and Technology (NTNU), 2018-2019.
  • AT-331/831 Arctic Environmental Pollution: Distribution and Processes, 10 ECTS, course responsible. University Centre in Svalbard (UNIS), 2017.
  • AT-331/831 Arctic Environmental Pollution: Distribution and Processes, 10 ECTS, guest lecturer. University Centre in Svalbard (UNIS), 2015-2016.
  • Workshop on using graphic calculators in aerospace engineering studies, course responsible. University of Stuttgart, 2012-2013.

Supervision

PhD Students (Main supervisor: 5 students, co-supervisor: 1 students)

  • Nicolas Müller, Icing, performance penalties, and ice protection systems for UAV propellers, 2021–2025, UBIQ Aerospace / NTNU, main supervisor.
  • Joachim Wallisch, De-icing and ice protection systems for UAVs, 2021-2025, NTNU, main-supervisor.
  • Michael Cheung, Path-planning of UAVs in icing conditions, 2021-2024, NTNU, main supervisor.
  • Bogdan Løw-Hansen, Ice detection, 2021-2025, NTNU, main supervisor.
  • Mauro Ghirardelli, UAV-based wind measurements, UiB, co-supervisor.
  • Markus Lindner, Icing performance of UAVs, 2022-2026, NTNU, main supervisor.

 

Master Students (Total: 22 students)

  • Michael Henzler, UAV Icing on a flying wing, NTNU/Uni Stuttgart, 2023/24, main supervisor (ongoing).
  • Samuel Göhring, Photogrammetry for Experimental UAV Ice shapes, NTNU/Uni Stuttgart, 2023/24, main supervisor (ongoing).
  • Markus Frey, Numerical investigation of heat transfer on propeller ice protection systems for unmanned aerial vehicles, NTNU/Uni Stuttgart, 2023, main supervisor.
  • Lukas Wurst, CFD icing simulations on a fixed-wing UAV engine inlet, NTNU/Uni Stuttgart, 2022/23, main supervisor.
  • Henidya Heramarwan, CFD Icing Simulations on Rotors for eVTOL Unmanned Aircraft, NTNU/Uni Stuttgart, 2022/23, main supervisor.
  • Stephan Van Reen, CFD Simulation of the Air Flow Field around a Ship, 2022, NTNU/UNIS/Aalto, main supervisor.
  • Bogdan Løw-Hansen, Electrothermal Ice-Shedding Detection for UAVs, 2021, NTNU, supporting supervisor.
  • Michael Cheung, An energy consumption model for UAVs in icing conditions, 2021, NTNU, main supervisor.
  • Kilian Meier, Wind Estimation with multirotor UAVs, master thesis, 2021, UNIS / École Polytechnique Fédérale de Lausanne, main supervisor.
  • Ruben Kleiven, Robust and Gain Scheduled Flight Control of Fixed-wing UAVs in Wind and Icing Conditions, master thesis, 2021, NTNU, supporting supervisor.
  • Johannes Oswald, UAV Icing: Numerical and Experimental Study of Performance Penalties on an RG-15 Airfoil, master thesis, 2020/21, Uni Stuttgart / von Karman Institute / NTNU, main supervisor.
  • Max Nüßle, Heat Transfer Simulations of Crevassed Glaciers, master thesis, 2020/21, Uni Stuttgart / UNIS / NTNU, main supervisor. 
  • Mikkel Tiller, Advanced path planning for UAVs in icing conditions, master thesis, 2020/21, NTNU, co-supervisor.
  • Nicolas Müller, Numerical simulation of the ice accretion on a propeller of a small fixed-wing UAV, master thesis, 2020, NTNU / Uni Stuttgart, main supervisor.
  •  Armin Dachauer, Aerodynamic Roughness Length of Crevassed Tidewater Glaciers from UAV Mapping, master thesis, 2020 UNIS / ETH Zürich, main supervisor.
  • Arthur Garreau, Validation and Application of Novel Wind Estimation Methods with Quadcopter UAVs in the Arctic, master thesis, 2020, UNIS / École nationale de la météorologie (ENM), main supervisor.
  • Edvard Frimann Løes Narum, Mission planning for fixed-wing UAVs in wind and icing conditions, master thesis, 2020, NTNU, co-supervisor.
  • Joachim Wallisch, Design of a low-speed icing wind tunnel for UAVs, master thesis, 2020, NTNU / Uni Stuttgart, main supervisor.
  • Nicolas Fajt, The Influence of Meteorological Conditions on the Icing Performance Penalties on a UAV Airfoil, master thesis, 2019, NTNU / Uni Stuttgart, main supervisor.
  • Adrian Winter, Systems Identification, Flight Performance, and Control of a Fixed-Wing UAV in Icing Conditions, master thesis, 2019, NTNU / Uni Stuttgart, main supervisor.
  • Julie Krøgenes, Aerodynamic Performance of the NREL S826 Airfoil in Icing Conditions, master thesis, 2017, NTNU, co-supervisor.
  • Lovisa Brandrud, Aerodynamic Performance of the NREL S826 Airfoil in Icing Conditions, master thesis, 2017, NTNU, co-supervisor.

Outreach

Norwegian SciTech News

An airplane with significant ice build-up on its wings or propellers will sooner or later crash. Researchers at NTNU have come up with several findings that could enable drones to de-ice their wings automatically.

How to Mesh a Frozen Drone

Icing is a severe hazard that significantly limits the usage of autonomous unmanned aerial vehicles. One of the most challenging tasks is creating high-quality meshes of multiple complex ice shapes in a timely manner.

NASA AMS Seminar Series

Advanced Modeling and Simulation organised by NASA. Presentation about CFD simulation of icing on UAVs.

2023

  • Academic lecture
    Högnadottir, Sif; Gryte, Kristoffer; Hann, Richard; Johansen, Tor Arne. (2023) Inner-Loop Control of Fixed-Wing Unmanned Aerial Vehicles in Icing Conditions. AIAA SciTech Conference , National Harbor, Maryland 2023-01-23 - 2023-01-27

2022

  • Academic lecture
    Hann, Richard. (2022) Update to Scientific Applications of Unmanned Vehicles in Svalbard. SIOS Polar Night Week 2022 2022-01-24 - 2022-01-27
  • Academic lecture
    Hann, Richard. (2022) Drone-based mapping of surging Scheelebreen and Vallåkrabreen glaciers in Svalbard. SIOS Online Conference , Svalbard 2022-10-12 - 2022-10-14
  • Academic lecture
    Hann, Richard. (2022) UAV Icing – The freezing barrier for the future of aviation. AMOS Day 2022 2022-11-09 - 2022-11-09
  • Academic lecture
    Hann, Richard. (2022) Drone-based mapping of Gruvefjellet in Spring and Summer for cornice risk assessment. SIOS Online Conference , Svalbard 2022-10-12 - 2022-10-14
  • Academic lecture
    Hann, Richard. (2022) Opening session: UAV Icing Workshop. UAV Icing Workshop , Trondheim 2022-11-29 - 2022-11-30

2020

  • Academic lecture
    Müller, Nicolas Carlo; Hann, Richard; Lutz, Thorsten. (2020) The Influence of Meteorological Conditions on the Icing Performance Penalties on a UAV Propeller. Deutscher Luft- und Raumfahrtkongress 2020 , Online 2020-09-01 - 2020-09-04
  • Academic lecture
    Hann, Richard. (2020) Overview of Unsettled Topics in UAV Icing. SAE International AeroTech Digital Summit , Online 2020-06-01 - 2020-06-04
  • Academic lecture
    Hann, Richard. (2020) Icing on UAVs. Advanced Modeling & Simulation (AMS) Seminar Series , NASA Ames 2020-02-04 -
  • Academic lecture
    Hann, Richard. (2020) Opportunities and Challenges for Unmanned Aerial Vehicles (UAVs) in the Arctic. SIOS Polar Night Week , Longyearbyen 2020-01-13 - 2020-01-17
  • Lecture
    Lindvall, Johannes; Lee, Leon; Virk, Muhammad Shakeel; Jin, Jia Yi; Lehtomäki, Ville; Hann, Richard. (2020) A CFD benchmark study of ice accretion on a wind turbine blade and a comparison to the ice accretion of a rotating blade cylinder model. WinterWind- International Wind Energy Conference , Åre 2020-02-03 - 2020-02-05
  • Academic lecture
    Hann, Richard. (2020) Applications of Unmanned Aerial Vehicles in Svalbard. Arctic Change , Online 2020-12-07 - 2020-12-10
  • Lecture
    Lindvall, Johannes; Lee, Leon; Lehtomäki, Ville; Virk, Muhammad Shakeel; Hann, Richard; Revstedt, Johan. (2020) A CFD benchmark: Ice accretion on a wind turbine blade. WinterWind 2020 2020-02-04 - 2020-02-06

2019

  • Academic lecture
    Hann, Richard; Hodson, Andrew; Jonassen, Marius Opsanger. (2019) Glacier Mapping and Wind Estimation with UAVs on Svalbard. Svalbard Science Conference 2019-11-05 - 2019-11-06
  • Academic lecture
    Hann, Richard. (2019) Unmanned aerial vehicles (UAVs) in cold climate and wind energy applications. Winterwind Conference 2019 2019-02-04 - 2019-02-06
  • Interview
    Hann, Richard; Hallén, Jonas. (2019) Drönare lär av vindkraften. Svensk vindkraft Svensk vindkraft [Journal] 2019-01-15

2018

  • Academic lecture
    Gryte, Kristoffer; Hann, Richard; Alam, Mushfiqul; Rohac, Jan; Johansen, Tor Arne; Fossen, Thor I.. (2018) Aerodynamic modeling of the Skywalker X8 Fixed-Wing Unmanned Aerial Vehicle. 2018 International Conference on Unmanned Aerial Systems , Dallas, TX 2018-06-12 - 2018-06-15
  • Lecture
    Hann, Richard. (2018) Icing on Unmanned Aerial Vehicles (UAVs). ICEBOX 2018 , Oslo 2018-10-03 - 2018-10-04
  • Lecture
    Hann, Richard. (2018) Wind Turbine Noise due to Icing. 2nd Wind Turbing Icing and Ice Prevention Forum , Berlin 2018-11-07 - 2018-11-08
  • Poster
    Hann, Richard. (2018) Icing Protection Systems for Unmanned Aerial Vehicles in the Arctic. Arctic Change , Ottawa 2018-12-10 - 2018-12-14
  • Lecture
    Hann, Richard. (2018) Icing on Unmanned Aerial Vehicles (UAVs). 2nd Wind Turbing Icing and Ice Prevention Forum , Berlin 2018-11-07 - 2018-11-08

2017

  • Academic lecture
    Hann, Richard; Wenz, Andreas Wolfgang; Gryte, Kristoffer; Johansen, Tor Arne. (2017) Impact of Atmospheric Icing on UAV Aerodynamic Performance. Workshop on Research, Education and Development of Unmanned Aerial Systems (RED-UAS) , IEEE 2017-10-03 - 2017-10-05
  • Academic lecture
    Hann, Richard; Veshniakova, Liudmila; Romero, Mason; Cicilio, Phylicia Rose. (2017) Cold Climate Wind Energy in Longyearbyen, 78°N. Arctic Change 2017-12-11 - 2017-12-15

2015

  • Poster
    Hann, Richard. (2015) Simulating Iced Wind Turbine Noise. Winterwind 2015-02-09 - 2015-02-11

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