Dr. Richard Hann, Researcher
Phone: +47 48 020 891
Mail:
richard.hann@ntnu.no
Google scholar publication statistics
ORCID
1st International
UAV Icing Workshop
3D Models of Glaciers (Sketchfab)
Research Interests
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Icing on unmanned aerial vehicles (UAVs)
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Ice
protection systems for UAVs in UBIQ Aerospace
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Icing computational fluid dynamics (CFD)
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Cold climate wind energy
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Drone applications in the
Arctic
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Atmospheric pollution & long-range transport
processes
Media
- Blog
- NASA lecture on UAV icing (2020) link
- Exploring the Hazards of Drone Icing
(2019) link
- Drones Help Reveal the Secret of Glacier
Crevasses (2019) link
- Icing on Drones and Wind Turbines (2019) link
- How to Mesh a Frozen Drone
(2020) link
/ link
- Package delivery to your door
by drone now one step closer (2021) link english / link norwegian
Awards
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2021 |
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2019 |
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2013 |
PhD
Thesis
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2020 |
Hann, R. (2020). Atmospheric Ice Accretions,
Aerodynamic Icing Penalties, and Ice Protection Systems on Unmanned Aerial
Vehicles. PhD Thesis NTNU2020:200, Norwegian University of Science and
Technology. |
Paper
Publications (Total: 72 / Journal: 19 / Conference: 40 / Book
chapters: 1 / Other: 16)
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2025 |
Lockhart, K., Sandino, J., Amarasingam, N., Hann,
R., Bollard, B., Gonzalez, F. (2025). Unmanned Aerial Vehicles for
Real-Time Vegetation Monitoring in Antarctica: A Review. Remote
Sensing. 17(2), 304. doi.org/10.3390/rs17020304 |
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Harcourt, W.D., Pearce, D.M., Gajek, W., Lovell, H., Luckman, A.,
Benn, D., Kohler, J., Kääb, A., Hann, R.
(2025) Surging glaciers in
Svalbard: Current knowledge and perspectives for monitoring. SESS
Report 2024, Svalbard Integrated Arctic Earth Observing System. doi.org/10.5281/zenodo.14425522 |
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2024 |
Frey, M., Müller,
N.C., Wallisch, J., Hann, R. (2024). UAV
Icing: Experimental Investigation and Numerical CHT Simulations of a
Propeller Ice Protection System. AIAA SciTech Forum. AIAA 2024-0871. doi.org/10.2514/6.2024-0871 |
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Hann, R., Borup, T. B. (2024. Requirements for UAV
Operations in Cold Climates and Icing Conditions. Report. UBIQ Aerospace. |
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Deiler, C., Veronesi, F., Raimondo, M., Mora, J., García, P., Frovel, M., Gagnon, B., Browne, T., Hann, R.
(2024). Ice
Detection Technologies. STO Technical Report, AVT-299 Assessment of
Anti-Icing and De-Icing Technologies for Air and Sea Vehicles. |
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Veronesi, F., Raimondo, M., Mingione, G.,
Martin, B., Hann, R., Håkonsen, V., Ki-Han, K., Nogues, J.M., Gagnon,
B. (2024). Ice
Protection Systems. STO Technical Report, AVT-299 Assessment of Anti-Icing
and De-Icing Technologies for Air and Sea Vehicles. |
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Blanchard, G., Hann, R., Håkonsen, V., Benmeddour, A., Bennani,
L., Rouzaud, O. (2024). Computational
Modelling and Simulation Methods. STO Technical Report, AVT-299
Assessment of Anti-Icing and De-Icing Technologies for Air and Sea Vehicles. |
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Müller, N.C., Hann,
R. (2024). UAV
Icing: Comparison of the Influence of Icing on a Rotor in Vertical and
Horizontal Flight. 20th International Workshop on Atmospheric Icing of
Structures (IWAIS). |
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Hann, R., Borup, K.T. (2024). Technical
requirements for RPAS operations in cold climates. 20th International
Workshop on Atmospheric Icing of Structures (IWAIS). |
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Hann, R., Müller, N.C.,
Wallisch, J. (2024). UAV
Icing: Impact Testing of Ice Fragments on a Propeller. AIAA 2024-4352. AIAA Aviation Forum and Ascend. doi.org/10.2514/6.2024-4352 |
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Müller, N.C., Hann,
R. (2024). UAV
Icing: Validation of an Ice Protection System Design for a Propeller. AIAA 2024-3568. AIAA Aviation Forum and Ascend. doi.org/10.2514/6.2024-3568 |
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Løw-Hansen, B., Hann, R., Johansen,
T.A, Deiler C. (2024). Time-Domain
System Identification and Validation of Small Fixed-Wing UAV Dynamics. AIAA 2024-4653. AIAA Aviation Forum and Ascend. doi.org/10.2514/6.2024-4653 |
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Lindner, M., Hann, R. (2024). UAV
Icing: Comparison of Simulated 3D and 2D Ice Accretion on Wings. AIAA 2024-4451. AIAA Aviation Forum and Ascend. doi.org/10.2514/6.2024-4451 |
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Laurendeau, E.,
Blanchet, M., Zayni, M.K., Hann, R.,
Radenac, E., Mussa I, Pueyo A. (2024). Summary From the 2nd AIAA Ice
Prediction Workshop. AIAA 2024-3604. AIAA Aviation Forum and
Ascend. doi.org/10.2514/6.2024-3604 |
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Walthall, R., David, A., Farell, J., Hann,
R., Johansen, T.A. (2024). Aerospace
Developments: Vol. 2. SAE Technical Paper EPRCOMPV302023. |
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Wallace, S., Durrant, A., Harcourt, W., Hann, R., Leontidis, G.
(2024). Exploring
Segment Anything Foundation Models for Out of Domain Crevasse Drone Image
Segmentation. Proceedings of the 6th Northern Lights
Deep Learning Conference (NLDL). |
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Hann, R. (Ed.) (2024). 2nd International UAV Icing
Workshop: Book of Abstracts. UAV Icing Workshop, Trondheim, Norway. doi.org/10.5281/zenodo.14274740 |
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Wallisch, J., Lindner,
M., Petersen, Ø.W., Neunaber, I., Bracchi, T., Hearst, R.J., Hann, R.
(2024). UAV Icing: Aerodynamic
Degradation Caused by Intercycle and Runback Ice Shapes on an RG-15 Airfoil.
Drones, 8(12), 775. doi.org/10.3390/drones8120775 |
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Borup, K.T., Hann, R., Sørensen,
K.L., Bernstein, B., Pellicano, P. (2024). Icing
Impact on UAS and AAM Operations in Selected US Metropolitan Areas. Report. UBIQ Aerospace. |
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2023 |
Paulsen, I.M.G., Pedersen, Å.Ø., Hann,
R., Blanchet, M.-A., Eischeid, I., Van Hazendonk, C., Ravolainen, V.T.,
Stien, A., Le Moullec, M. (2023). How Many Reindeer? UAV
Surveys as an Alternative to Helicopter or Ground Surveys for Estimating
Population Abundance in Open Landscapes. Remote Sensing, 15(1),
9. doi.org/10.3390/rs15010009 |
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Högnadottir, S., Gryte, G., Hann, R.,
Johansen, T.A. (2023). Inner-Loop
Control of Fixed-Wing Unmanned Aerial Vehicles in Icing Conditions. AIAA SCITECH
Forum. AIAA 2023-1049 doi.org/10.2514/6.2023-1049 |
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Hann, R., Betlem, P., Deja, K., Ewertowski, M., Harm-Altstädter,
B., Jonassen, M., Lampert, A., Laska, M., Sobota, I., Storvold, R., Tomczyk,
A., Zagórski, P. (2023) Practical
Guidelines for Scientific Application of Uncrewed Aerial Vehicles in Svalbard.
SESS Report 2022, Svalbard Integrated Arctic Earth Observing System. doi.org/10.5281/zenodo.7371141 |
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Hann, R., Müller, N.C.,
Lindner, M., Wallisch, J. (2023). UAV
Icing: Experimental validation data for predicting ice shapes at low Reynolds
numbers. SAE
International Conference on Icing of Aircraft, Engines, and Structures. doi.org/10.4271/2023-01-1372 |
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Wallisch, J., Hann, R. (2023). UAV
Icing: Intercycle Ice Effects on Aerodynamic Performance. SAE International
Conference on Icing of Aircraft, Engines, and Structures. doi.org/10.4271/2023-01-1400 |
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Müller, N.C., Hann,
R. (2023). UAV
Icing: 3D simulations of propeller icing effects and anti-icing heat loads. SAE
International Conference on Icing of Aircraft, Engines, and Structures. doi.org/10.4271/2023-01-1400 |
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Løw-Hansen, B., Müller, N.C., Coates, E.,
Johansen, T.A., Hann, R. (2023). Identification
of an Electric UAV Propulsion System in Icing Conditions. SAE
International Conference on Icing of Aircraft, Engines, and Structures. doi.org/10.4271/2023-01-1378 |
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Cheung, M., Johansen, T.A., Hann,
R. (2023). UAV
Icing: Icing Cases
for Validation of Path Planning Method. SAE
International Conference on Icing of Aircraft, Engines, and Structures. doi.org/10.4271/2023-01-1379 |
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Lindner, M., Wallisch,
J., Hann, R. (2023). UAV
Icing: Numerical Simulation of Icing Effects on Wing and Empennage. SAE
International Conference on Icing of Aircraft, Engines, and Structures. doi.org/10.4271/2023-01-1384 |
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Heramarwan, H.,
Müller, N., Lutz, T., Hann, R. (2023). UAM
Icing: Ice Accretion Simulations and Experiments of an eVTOL Rotor. SAE International
Conference on Icing of Aircraft, Engines, and Structures. doi.org/10.4271/2023-01-1391 |
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Enache, A., Wallisch,
J., van Beeck, J., Hendrick, P., Hann, R. (2023). Ice Accretion:
Image Post-Processing Measurement Techniques for 2D Ice Shapes. Aerospace, 10(5), 451. doi.org/10.3390/aerospace10050451 |
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Hann, R. (2023). Numerical Simulation of
In-Flight Icing of Unmanned Aerial Vehicles. In: Habashi, W.G. (eds)
Handbook of Numerical Simulation of In-Flight Icing. Springer. doi.org/10.1007/978-3-030-64725-4_12-1 |
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Müller, N.C., Løw-Hansen, B., Borup, K.T., Hann,
R. (2023). UAV icing:
Development of an ice protection system for the propeller of a small UAV. Cold Regions Science and Technology, 213, 103938. doi.org/ 10.1016/j.coldregions.2023.103938 |
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Ghirardelli, M., Kral, S.T., Müller, N.C., Hann,
R., Cheynet, E., Reuder, J. (2023). Flow Structure around a Multicopter Drone: A Computational Fluid Dynamics
Analysis for Sensor Placement Considerations. Drones,
7(7), 467. doi.org/ 10.3390/drones7070467 |
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Løw-Hansen, B., Hann, R., Stovner, B.
N., Johansen, T. A. (2023). UAV
Icing: A survey of recent developments in ice detection methods. 22nd IFAC World Congress, Yokohama. |
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Wurst, L., Wallisch,
J., Hann, R. (2023). CFD
icing simulations on a fixed-wing UAV engine inlet. Deutscher Luft- und Raumfahrtkongress
(DLRK). doi.org/10.25967/610455 |
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2022 |
Oswald, J.W., Enache,
A., Hann, R., Glabeke, G., Lutz, T. (2022). UAV
Icing: Experimental and Numerical Study of Glaze Ice. AIAA 2022-1976.
AIAA SciTech Forum. doi.org/10.2514/6.2022-1976 |
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Hann, R., Betlem, P., Deja, K., Hartvich, F., Jonassen, M., Lampert,
A., Laska, M., Sobota, I., Storvold, R., Zagórski P. (2022). Update to Scientific Applications of Unmanned Vehicles
in Svalbard. SESS Report 2021, Svalbard
Integrated Arctic Earth Observing System. doi.org/10.5281/zenodo.5751959 |
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Meier, K., Hann, R., Skaloud, J.,
Garreau, A. (2022). Wind Estimation with
Multirotor UAVs. Atmosphere, 13, 551. doi.org/10.3390/atmos13040551 |
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Hann, R. (2022). Hazards
of In-flight Icing on Unmanned Aircraft. Conference paper. SCI-328
Symposium on ‘Flight Testing of Unmanned Aerial Systems (UAS). |
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Cheung, M., Hann, R., Johansen, T.A.
(2022). UAV
Icing: A Unified Icing Severity Index Derived from Performance Degradation. AIAA Atmospheric and Space Environments Conference. doi.org/10.2514/6.2022-3906 |
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Wallisch, J., Hann, R. (2022). UAV
Icing: Experimental Investigation of Ice Shedding Times with an
Electrothermal De-Icing System. AIAA Atmospheric and Space Environments
Conference. doi.org/10.2514/6.2022-3905 |
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Müller, N., Hann, R. (2022). UAV
Icing: A Performance Model for a UAV Propeller in Icing Conditions. AIAA
Atmospheric and Space Environments Conference. doi.org/10.2514/6.2022-3903 |
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Løw-Hansen, B., Hann, R., Johansen,
T.A. (2022). UAV
Icing: Ice Shedding Detection Method for an Electrothermal De-Icing System. AIAA
Atmospheric and Space Environments Conference. doi.org/10.2514/6.2022-3904 |
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Laurendeau, É.,. Bourgault-Côté, S., Ozcer, I., Hann, R., Radenac,
E., Pueyo, A. (2022). Summary
from the 1st AIAA Ice Prediction Workshop. AIAA
Atmospheric and Space Environments Conference. doi.org/10.2514/6.2022-3398 |
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Hann, R. (2022). UAV
Icing: Challenges for computational fluid dynamic (CFD) tools. International
Conference on Computational Fluid Dynamics, ICCFD11. |
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2021 |
Hann, R., Enache, A., Nielsen, M.C., Stovner, B.N.,
van Beeck, J., Johansen, T.A., Borup, K.T. (2021). Experimental Heat Loads for Electrothermal
Anti-Icing and De-Icing on UAVs. Aerospace,
8(3), 83. doi.org/10.3390/aerospace8030083 |
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Hann, R., Altstädter, B., Betlem, P., Deja, K., Dragańska-Deja K.,
Ewertowski, M., Hartvich, F., Jonassen, M., Lampert, A., Laska, M., Sobota,
I., Storvold, R., Tomczyk, A., Wojtysiak, K. Zagórski P. (2021). Scientific Applications of
Unmanned Vehicles in Svalbard. SESS Report
2020, Svalbard Integrated Arctic Earth Observing System. doi.org/10.5281/zenodo.4293283 |
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Jawak, S.D., Andersen, B.N., Pohjola, V., Godøy, Ø., Hübner, C.,
Jennings, I., Ignatiuk, D., Holmen, K., Sivertsen, A., Hann, R.,
Tømmervik, H., Kääb, A., Błaszczyk,
M., Salzano, R., Luks, B., Høgda, K., Storvold, R., Nilsen, L., Salvatori,
R., Krishnan, K.P., Chatterjee, S., Lorentzen, D.A., Erlandsson, R., Lauknes, T.R., Malnes, E., Karlsen, S.R., Enomoto, H.,
Fjæraa, A.M., Zhang, J., Marty, S., Nygård, K.O., Lihavainen, H. (2021). SIOS’s Earth Observation (EO), Remote Sensing
(RS), and Operational Activities in Response to COVID-19. Remote Sensing, 13(4), 712. doi.org/10.3390/rs13040712 |
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Sørensen, K.L., Borup, K.T., Hann, R.,
Bernstein, B., Hansbø, M. (2021). UAV Atmospheric Icing Limitations: Climate
Report for Norway and Surrounding Regions. Report. UBIQ Aerospace. |
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Hann, R., Johansen, T.A. (2021). UAV icing: the influence of
airspeed and chord length on performance degradation. Aircraft Engineering and Aerospace Technology, Vol. 93, No. 5. doi.org/10.1108/AEAT-06-2020-0127 |
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Müller, N., Hann,
R., Lutz, T. (2021). UAV Icing: Numerical Simulation of
Propeller Ice Accretion. AIAA 2021-2673. AIAA Aviation 2021 Forum. doi.org/10.2514/6.2021-2673 |
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Nicu, I.C.,
Rubensdotter, L., Stalsberg, K., Nau, E. (2021). Coastal Erosion of Arctic Cultural Heritage
in Danger: A Case Study from Svalbard, Norway. Water, 13(6), 784. doi.org/10.3390/w13060784 (Hann, R. contribution: drone mapping). |
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Haaland, O.M., Wenz, A.W., Gryte, K., Hann,
R., Johansen, T.A. (2021). Detection and Isolation of
Propeller Icing and Electric Propulsion System Faults in Fixed-Wing UAVs. In 2021 International Conference on Unmanned Aircraft Systems (ICUAS),
pp. 377-386, IEEE. doi.org/10.1109/ICUAS51884.2021.9476695 |
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Hermanson, M.H., Isaksson, E., Hann, R., Ruggirello, R.M.,
Teixeira, C., Muir, D.C.G. (2021). Historic
Atmospheric Organochlorine Pesticide and Halogenated Industrial Compound
Inputs to Glacier Ice Cores in Antarctica and the Arctic. ACS Earth
Space Chem, 5, 9, 2534–2543. doi.org/10.1021/acsearthspacechem.1c00211 |
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Dachauer, A., Hann, R., and Hodson, A.J.: Aerodynamic roughness
length of crevassed tidewater glaciers from UAV mapping, The
Cryosphere, 15, 5513–5528, 2021. doi.org/
10.5194/tc-15-5513-2021 |
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2020 |
Hann, R., Johansen, T.A. (2020). Unsettled
Topics in Unmanned Aerial Vehicle Icing. SAE
International, SAE EDGE Research Report EPR2020008. doi.org/10.4271/EPR2020008 |
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Hermanson, M.H., Isaksson E., Hann R., Teixeira C.F., Muir
D.C.G. (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 4 (11), pp.
2096-2104. doi.org/10.1021/acsearthspacechem.0c00227 |
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Wallisch, J., Hann, R. (2020). Design of a Low-Speed Icing Wind
Tunnel for UAVs. Deutsche Gesellschaft für Luft- und Raumfahrt. doi.org/10.25967/530188 |
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Hermanson, M.H., Isaksson E., Hann R., Teixeira C.F., Muir
D.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 & Technolgy, vol. 54, issue 15, pp.
9265–9273. doi.org/10.1021/acs.est.0c01537 |
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Hovenburg, A. R.,
Andrade, F. A. A., Hann, R., Rodin, C. D., and Johansen, T. A.,
Storvold, R. (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. doi.org/10.1109/JMASS.2020.3003833 |
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Hann, R., Hearst, R.J., Sætran, L.R., Bracchi, T.
(2020). Experimental and Numerical Icing Penalties of
an S826 Airfoil at Low Reynolds Numbers. Aerospace, 7(4), 46. [Data]
doi.org/10.3390/aerospace7040046 |
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Narum, E.F.L., Hann, R., Johansen,
T.A. (2020). Optimal Mission Planning for
Fixed-Wing UAVs with Electro-Thermal Icing Protection and Hybrid-Electric
Power Systems. In 2020 International
Conference on Unmanned Aircraft Systems (ICUAS), pp. 651-660, IEEE. doi.org/10.1109/ICUAS48674.2020.9214054 |
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2019 |
Hann, R., Hermanson, M. (2019). Derivation of Flow Rate and Calibration
Method for High-Volume Air Samplers. Atmospheric Measurement Techniques, 12(9), 4725-4731. doi.org/10.5194/amt-12-4725-2019 |
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Hann, R. (2019). UAV Icing: Ice Accretion
Experiments and Validation. SAE Technical Paper. No. 2019-01-2037. doi.org/10.4271/2019-01-2037 |
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Hann, R., Borup, K., Zolich, A., Sorensen, K.,
Vestad, H., Steinert, M., & Johansen, T.A. (2019). Experimental Investigations of an
Icing Protection System for UAVs. SAE Technical Paper. No. 2019-01-2038. doi.org/10.4271/2019-01-2038 |
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Fajt, N., Hann, R., Lutz, T. (2019). The Influence of Meteorological
Conditions on the Icing Performance Penalties on a UAV Airfoil. 8th European Conference for Aeronautics and Aerospace
Sciences (EUCASS). doi.org/10.13009/EUCASS2019-240 |
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Winter, A., Hann, R., Wenz, A., Gryte, K., & Johansen, T. A. (2019). Stability of a Flying Wing UAV in Icing
Conditions. 8th European Conference for
Aeronautics and Aerospace Sciences (EUCASS). doi.org/10.13009/EUCASS2019-906 |
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Hann, R. (2019). UAV Icing: Comparison of LEWICE
and FENSAP-ICE for Anti-Icing Loads. AIAA 2019-1286. AIAA Scitech Forum. doi.org/10.2514/6.2019-1286 |
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2018 |
Gryte, K., Hann, R., Alam,
M., Roháč, J., Johansen, T. A., Fossen, T. I. (2018). Aerodynamic
modeling of the skywalker x8 fixed-wing unmanned
aerial vehicle. In 2018 International Conference on Unmanned
Aircraft Systems (ICUAS), pp. 826-835. IEEE. doi.org/10.1109/ICUAS.2018.8453370 |
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Hann, R. (2018). UAV
Icing: Comparison of LEWICE and FENSAP-ICE for Ice Accretion and Performance
Degradation. AIAA 2018-2861. AIAA Atmospheric and Space Environments
Conference. doi.org/10.2514/6.2018-2861 |
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2017 |
Hermanson, M.H., Hann, R., Johnson, G.W. (2017). Response to
Comment on “Polychlorinated Biphenyls in Tree Bark near Former Manufacturing
and Incinerator Facilities in Sauget, Illinois, United States”. Environmental
Science & Technology. 2017, 51, 8206−8207. doi.org/10.1021/acs.est.7b01688 |
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Hann, R., Wenz, A., Gryte, K., & Johansen, T. A. (2017). Impact
of atmospheric icing on UAV aerodynamic performance. In 2017 Workshop on
Research, Education and Development of Unmanned Aerial Systems (RED-UAS), pp.
66-71. IEEE. doi.org/10.1109/RED-UAS.2017.8101645 |
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2016 |
Hermanson, M.
H., Hann, R., & Johnson, G. W.
(2016). Polychlorinated
biphenyls in tree bark near former manufacturing and incineration facilities
in Sauget, Illinois, United States. Environmental Science &
Technology, 50(12), 6207-6215. doi.org/10.1021/acs.est.6b01053 |
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2015 |
Lutz, T., Arnold, B., Bekiropoulos, D., Illg, J., Krämer, E., Wolf,
A., Hann, R., Kamruzzaman, M. (2015). Prediction
of flow-induced noise sources of wind turbines and application examples. International
Journal of Aeroacoustics, 14(5-6), 675-714. doi.org/10.1260/1475-472X.14.5-6.675 |
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2013 |
Hann, R., Wolf, A.,
Bekiropoulos, D., Lutz, T., Krämer, E. (2013). Numerical
investigation on the noise generation of iced wind turbine airfoils. Winterwind Conference. |
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Hann, R., (2013). Aeroakustische Analyse Vereister Profile
einer Windenergieanlage. Diplomarbeit/ Final-year thesis. University of Stuttgart. |
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2012 |
Hann, R., (2012). Thermische Untersuchng der Eisbildung
und des Anti-Icings an einem Rotorblatt für Windenergieanlangen. Studienarbeit/study thesis. University of
Stuttgart. |
Conference
Presentations (Total: 37 presentations)
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2024 |
Hann, R. (2024). The icing barrier
for clean aviation. NTNU and Rolls Royce Clean Aviation Evening, Trondheim. |
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Hermanson, M.H.,
Isaksson, E, Hann, R., Gabrielsen, G.W. (2024). Frozen Pollutants: Organic Contaminants in Svalbard Snow & Ice. Arctic Frontiers Conference 2024, Tromsø. |
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Pearce, D.M., Harcourt, W.D., Gajek, W., Hann, R., Rea, B.R.,
Benn, D.I., Lovell, H., Spagnolo, M. (2024). Investigating
the signature of a tidewater glacier surge behaviour
using geomorphologhical, sedimentological and
geotechnical data, Borebreen, Svalbard. General Assembly of the European Geosciences Union, EGU24. |
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Harcourt, W.D, Gajek, W., Pearce, D., Hann, R., Luckman, A.,
Rea, B.R., Benn, D.I., James, M.R, Spagnolo, M., Nanni, U. (2024). Surge
initiation at the terminus of Borebreen (Svalbard):
Drivers and impact on calving. General Assembly of the European
Geosciences Union, EGU24. |
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Hann, R., Broeren, A., Leopold, D., Botura, G.,
Pellicano, P., Goyal, R. (2024). Challenges in
In-flight Icing for Disruptive Aircraft Designs and AAM. Invited panel discussion. AIAA Aviation Forum and Ascend. |
|
|
Hann, R., (2024). Progress, Insights,
and Future Direction in UAV Icing. Keynote presentation. 2nd
International UAV Icing Workshop. |
|
|
|
|
2023 |
Hann, R. (2023). The challenge of atmospheric
in-flight icing on RPAS. 8th ISARRA (International
Society for Atmospheric Research using Remotely-piloted Aircraft) conference,
Bergen. |
|
|
Hann, R. (2023) Mapping glaciers & counting reindeer: drone applications in
Svalbard. Svalbard Science Conference, Olso. |
|
|
|
|
2022 |
Hann, R. (2022). Drone-based mapping
of surging Scheelebreen and Vallåkrabreen
glaciers in Svalbard. SIOS Online Conference, online. |
|
|
Hann, R. (2022). Drone-based mapping
of Gruvefjellet in Spring and Summer for cornice
risk assessment. SIOS Online Conference, online. |
|
|
Hann, R. (2022). UAV Icing – The
freezing barrier for the future of aviation. AMOS Days
November 2022, Trondheim. |
|
|
Hann, R. (2022). Update to
Scientific Applications of Unmanned Vehicles in Svalbard. SIOS Polar Night Week 2022, Longyearbyen. |
|
|
|
|
2021 |
Hann, R. (2021). SESS Report
Release: Scientific Applications of Unmanned Vehicles in Svalbard. SIOS Polar Night Week, Longyearbyen. Hann, R. (2021). Applications of
Unmanned Vehicles in Svalbard. Arctic Science Summit Week, online. |
|
|
Hann, R. (2021). Synergies between
icing on wind turbines and UAVs. Winterwind Conference, online. |
|
|
Hann, R. (2021). Hazards of
In-flight Icing on Unmanned Aircraft. SAE Business of Automated Mobility (BAM) Forum, online. |
|
|
Hann, R. (2021). Applications of
Unmanned Vehicles in Svalbard. SIOS Online conference on remote sensing
in Svalbard. Hann, R. (2021). How to publish a
paper. SCOPE, 1st student-led conference on Polar Environment,
Longyearbyen. Hann, R. (2021). The Role of
Glacier Crevasses in the Context of Climate Change. Svalbard Science
Conference, Olso. Hann, R. (2021). Atmospheric icing
as a hazard to unmanned aircraft applications. Arctic Safety Conference, Longyearbyen. Hermanson, M.H., Isaksson, E., Hann, R.,
Ruggirello, R.M., Teixeira, C., Muir, D.C.G. (2020). A comparison of PCB congener, organochlorine pesticide, and industrial
compound burdens in firn and ice cores from
Antarctica and Svalbard. SETAC
North America 42nd Annual Meeting, online. |
|
|
|
|
2020 |
Hann, R. (2020). Applications of Unmanned Aerial
Vehicles in Svalbard. Arctic Change Conference, Longyearbyen. |
|
Hann, R. (2020). Overview of Unsettled Topics in
UAV Icing. SAE International AeroTech Digital Summit, online. |
|
|
|
Müller, N., Hann,
R., Lutz, T. (2020). The Influence of Meteorological Conditions
on the Icing Performance Penalties on a UAV Propeller, Deutscher Luft- und Raumfahrtkongress
(DLRK), online. |
|
|
Lindvall, J., Lee, L., Virk, M.S., Jin, J.Y., Lehtomäki, V., Hann,
R., Revstedt, J. (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 Conference, Åre.
|
|
|
Hann, R. (2020). Icing on UAVs. Invited talk to the Advanced Modeling & Simulation (AMS) Seminar
Series at the National Aeronautics and Space Administration (NASA), Ames. |
|
|
Hermanson, M.H., Isaksson, E., Hann, R., Teixeira, C., Muir,
D.C.G. (2020). Deposition of polychlorinated
biphenyls to ice cores at opposite polar sites: Holtedahlfonna,
Svalbard and Site M, Antarctica. SETAC Europe 30th Annual Meeting, Dublin. |
|
Hann, R. (2020). Opportunities and
Challenges for Unmanned Aerial Vehicles (UAVs) in the Arctic. SIOS Polar Night
Week Conference, Longyearbyen. |
|
|
|
|
|
2019 |
Hann, R., Hodson, A., Jonassen, M. (2019). Glacier Mapping and Wind
Estimation with UAVs on Svalbard. Svalbard
Science Conference, Olso. |
|
|
Hann, R. (2019). Unmanned Aerial Vehicles (UAVs) in
Cold Climate and Wind Energy Applications. Winterwind Conference, Umeå. |
|
|
|
|
2018 |
Hann, R. (2018). Icing
Protection Systems for UAVs in the Arctic. Arctic Change conference. |
|
|
Hann, R. (2018). Wind Turbine Noise due to Icing. Wind Turbine
Icing & Ice Prevention Forum |
|
|
Hann, R. (2018). Icing on Unmanned Aerial Vehicles (UAVs). Wind
Turbine Icing & Ice Prevention Forum |
|
|
|
|
2017 |
Krøgenes, J., Brandrud, L., Hann,
R., Bartl, J., Bracchi, T., & Sætran, L. (2017). Aerodynamic
performance of the NREL S826 airfoil in icing conditions. Wind
Energy Science Discussions, 1-17. |
|
|
Hann, R., Veshniakova, L., Romero, M., Cicilio,
P.R. (2017). Cold
Climate Wind Energy in Longyearbyen, 78°N. Arctic Change conference. |
|
|
|
|
2016 |
Hann, R. (2016). Applications
of iced wind turbines noise simulations. Winterwind
Conference. |
|
|
|
|
2014 |
Hann, R. (2014). Simulation and validation of the
aerodynamic performance of iced wind turbine airfoils. Winterwind
Conference. |
|
|
|
|
2012 |
Hann, R., Neumann, S. O., Miller, A., & Dillingh, J. (2012). Thermal
analysis of a heated rotor blade for wind turbines. Winterwind Conference. |
Datasets
(Total: 18 datasets)
·
Hann, R., Lockhart, K. (2025). Drone-based glacier mapping of Fridtjovbreen, Vallakrabreen, Paulabreen, and Scheelebreen, DataverseNO, Version 1. doi.org/10.18710/GA1FTV
·
Harcourt,
W., Pearce, D., Gajek, W., Lovell, H., Luckman, A., Benn, D., Kohler, J., Kääb, A., Hann, R. (2024). Svalbard Surge Database 2024,
Dataset, Zenodo. doi.org/10.5281/zenodo.14229560
·
Hann, R., Gajek, W., Pearce, D., & Harcourt, W. (2024). Drone-based glacier mapping of Borebreen in Svalbard, 2024, Dataset, Zenodo. doi.org/10.5281/zenodo.13837315
·
Hann, R., Gajek, W., Pearce, D., & Harcourt, W. (2024). Drone-based geomorphology
mapping of Borebreen in Svalbard, 2024, Dataset, Zenodo. doi.org/10.5281/zenodo.13837009
·
Hann, R. (2024). Drone-based
mapping of surging glaciers in Rindersbukta, Svalbard,
DataverseNO, Version 2. doi.org/10.18710/IBBSGD
·
Hann, R. (2024). Drone-based glacier mapping of Nordenskiöldbreen and Tunabreen
in Svalbard, Dataset. Zenodo, Version 1. doi.org/10.5281/zenodo.13623723
·
Hann, R., Rhodes, N., Gajek, W., Pearce, D., Harcourt, W.
(2024). Drone-based mapping of
calving rates of Borebreen in Svalbard, Svalbard,
DataverseNO, Version 1. doi.org/10.18710/B553MB
·
Hann, R., Rinne, E. (2024). Drone-based mapping of Larsbreen, Longyearbreen, and Tellbreen in Svalbard, DataverseNO,
Version 1. doi.org/10.18710/L41RKZ
·
Hann, R. (2023). Drone-based
mapping of crevassed glaciers in Svalbard, DataverseNO,
Version 1. doi.org/10.18710/KLISS5
·
Hann, R. (2022). Drone-based
mapping of Gruvefjellet in Spring and Summer for
cornice risk assessment, DataverseNO, Version 1. doi.org/10.18710/0NO42L
·
Hann, R., Meier, K., Garreau, A.
(2022). Validation
data for wind speed and wind direction measurements with quadcopter drones,
DataverseNO, Version 1. doi.org/10.18710/AFDYLS
·
Hann, R. (2022). Drone-based
mapping of Sassendalen for reindeer counting in
Svalbard. DataverseNO, Version 1. doi.org/10.18710/KHQKWH
·
Hann, R., et al. (2022). Scientific literature that
utilizes unmanned vehicles in Svalbard. Svalbard Integrated Earth Observing
System, SIOS.
·
Hann, R. (2021). Drone-based
mapping of the Endalen alluvial fan in Svalbard. DataverseNO, Version 1. doi.org/10.18710/AED5GT
·
Hann, R. (2021). Aerodynamic
roughness length of crevassed tidewater glaciers from UAV mapping in Svalbard. DataverseNO,
Version 1. doi.org/10.18710/JMWF3E
·
Hann, R. (2021). Drone-based
mapping of the Lagoon Pingo in Svalbard. DataverseNO,
Version 1. doi.org/10.18710/IMPEG8
·
Hann,
R., Müller, N. (2020). Icing
Validation Database. DataverseNO, Version 1. doi.org/10.18710/5XYALW
·
Hann,
R., Wallisch, J. (2020). UAV
Specification Database. DataverseNO, Version 1. doi.org/10.18710/L41IGQ
People
– PhD Students (Main supervisor: 5 students, co-supervisor: 3 students)
·
Mauro
Ghirardelli, SAMURAI
- Development, Test and Validation of an Airborne Sonic Anemometer,
2021-2024, University in Bergen UiB, co-supervisor.
·
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.
·
Markus
Lindner, Icing performance of UAVs, 2022-2026, NTNU, main supervisor.
·
Kristoffer
Kvist, Helicopter icing, 2024-202X, The Arctic University in Norway UiT, co-supervisor.
·
Kaelan
Lockhart, Real-time vegetation mapping in Antarctica, Queensland
University of Technology QUT, co-supervisor.
People
– Master Students (Total: 24 students)
·
Noel
Ernsting, In-flight icing effects on a
airborne wind energy platform,
NTNU/Uni Stuttgart, 2025, main supervisor.
·
Jakob
Röß, Wind tunnel measurements on an iced
RG-15 airfoil, NTNU/Uni Stuttgart, 2024/25,
co-supervisor.
·
Michael
Henzler, CFD
Simulation of Icing on a Flying-Wing UAV, NTNU/Uni Stuttgart, 2023/24,
main supervisor.
·
Samuel
Göhring, Development
of a Photogrammetry Method to Digitize Ice Shapes on UAVs, NTNU/Uni
Stuttgart, 2023/24, main supervisor.
·
Markus
Frey, Numerical
investigation of heat transfer on propeller ice protection systems for unmanned
aerial vehicles, 2023, NTNU/Uni Stuttgart, main supervisor.
·
Lukas
Wurst, CFD
icing simulations on a fixed-wing UAV engine inlet, 2022/23, NTNU/Uni Stuttgart, , main supervisor.
·
Henidya
Heramarwan, CFD
Icing Simulations on Rotors for eVTOL Unmanned Aircraft, 2022/23,
NTNU/Uni Stuttgart, 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.
Teaching
·
FLYT1101 Introduction to Aircraft
and Aviation – lecturer. Norwegian University of Science and Technology (NTNU),
2024 – today.
·
AT-334/834
Arctic Marine Measurements Techniques, Operations and Transport (10 ECTS) –
guest lecturer, University Centre in Svalbard (UNIS), 2024.
·
AGF-350/850
The Arctic Atmospheric Boundary Layer and Local Climate Processes (10 ECTS) –
guest lecturer. University Centre in Svalbard (UNIS), 2020, 2022, and 2024.
·
AGF-312
Remote Sensing of the Cryosphere (10 ECTS) – guest lecturer, University Centre
in Svalbard (UNIS), 2023.
·
Training course on Uncrewed
Aerial Vehicles in Svalbard (UAV4Svalbard) – main instructor, Svalbard
Integrated Arctic Earth Observing System (SIOS), 2023.
·
Unmanned
Aerial Vehicle: Environmental Applications – Advanced Level – guest lecturer,
University of Silesia in Katowice, 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.
Funding (14× National: 46.5MNOK & 2× EU: 1.4MEUR)
·
European
Defense Fund, 2024-2027, EDF-2023-DA-C4ISR-TRPAS: Advanced
capabilities & Certification for Tactical UAV Systems (ACTUS). 0.6MEUR
(total 42.0MEUR). Co-principal investigator.
·
European
Defense Fund, 2023-2026, EDF-2022-LS-RA-SMERO-NT-TDRIC: Tactical
Drones in Rain and Icing Conditions (TDRIC). 0.8MEUR (total 4.0MEUR).
Co-principal investigator.
·
Research
Council of Norway, 2024-2027, project number 350469. Zero Ice
Shield: D•ICE Ice Protection for Aviation's Green Evolution. 9.1MNOK.
Co-principal investigator.
·
Research
Council of Norway, 2024, project number 350269: Linking
past and present surge dynamics at Borebreen from
drone surveys. 80kNOK. Investigator.
·
Research
Council of Norway, 2022-2023, project number 333170: Drone-mapping
Surging Glaciers in Svalbard. 50kNOK. Principal investigator.
·
Research
Council of Norway, 2021-2026, project number 316425: Icing
effects, detection and mitigation on unmanned aerial vehicles (UAVs).
12.4MNOK. Co-Principal Investigator.
·
Research
Council of Norway, 2021-2025, project number 318000: Adverse
weather mission planning for unmanned aerial vehicles (UAVs). 14.9MNOK.
Principal investigator.
·
Research
Council of Norway, 2021-2024, project number 321667: Industrial
PhD on Propeller Icing on Unmanned Aerial Vehicles. 2.5MNOK. Principal
investigator.
·
Research
Council of Norway, 2020, project number 310702: Validation
and Application of Novel Wind Estimation Techniques with UAVs in the Arctic.
29kNOK. Co-principal investigator.
·
Research
Council of Norway, 2019-2022, project number 296228: Autonomous
icing protection solution for unmanned aircraft rotors. 6.4MNOK. Post-doc.
·
Research
Council of Norway, 2019-2020, project number 296355: Using
UAVs to investigate effects of crevasses upon glacier surface melting.
78kNOK. Principle investigator.
·
Svalbard
Integrated Arctic Earth Observing System, 2024, SESS Report 2024: Surging glaciers in Svalbard:
Current knowledge and perspectives for monitoring. 200kNOK. Principle
investigator.
·
Svalbard
Integrated Arctic Earth Observing System, 2023, Access Call: Drivers of surge activation at Borebreen. 200kNOK. Investigator.
·
Svalbard
Integrated Arctic Earth Observing System, 2022, SESS Report 2022: Practical Guidelines for
Scientific Application of Uncrewed Aerial Vehicles in Svalbard. 200kNOK.
Principle investigator.
·
Svalbard
Integrated Arctic Earth Observing System, 2021, SESS Report 2021: Update to Scientific Applications
of Unmanned Vehicles in Svalbard. 70kNOK. Principle investigator.
·
Svalbard
Integrated Arctic Earth Observing System, 2020, SESS Report 2020: Scientific Applications of
Unmanned Vehicles in Svalbard. 240kNOK. Principle investigator.
Research Projects
·
Icing
effects, detection and mitigation on unmanned aerial vehicles (UAVs). Funded by
the Research Council of Norway (IKTPLUSS). 2020 – today.
·
Center
of Excellence, Autonomous Marine Operations and Systems (AMOS). Funded by the Research Council
of Norway, NTNU, Equinor, DNV GL and the Sintef Group.
2016 – 2023.
·
NTNU
Unmanned Aerial Vehicles Laboratory (UAV-lab). 2016 – today.
·
NTNU
Unmanned Aerial Vehicles Icing Laboratory (UAV Icing Lab).
2021 – today.
·
UAV
Crevasse – Using UAVs to investigate effects of crevasses upon glacier surface
melting (RIS-ID 11148).
2019 – 2022.
·
Arctic
ABL Wind – Novel method for wind measurements in the arctic atmospheric
boundary layer (RIS-ID
11372). 2020 – 2021.
·
2nd
AIAA Ice Prediction Workshop (IPW).
2022 – 2023.
·
1st
AIAA Ice Prediction Workshop (IPW).
2020 – 2021.
·
D•ICE
ROTORS – Protecting the unmanned aircraft industry, funded by Research Council of Norway (BIA) and UBIQ Aerospace. 2019 – 2022.
·
Centre
for integrated remote sensing and forecasting for arctic operations (CIRFA). 2016
– 2020.
·
NATO
AVT-388 – Operation of Unmanned Aerial Vehicles (UAVs) in Icing Environments.
Co-chair. 2023 – today.
·
NATO
AVT-ET-214 – Operation of Unmanned Aerial Vehicles (UAVs) in Icing
Environments. Co-chair. 2020 – 2022.
·
NATO
AVT-299 – Assessment of Anti-Icing and De-Icing Technologies for Air and Sea
Vehicles. Participant. 2018 – 2021.
Academic Engagement
& Workgroups
·
Guest
Editor for the Special Issue: ”Recent
Development in Drones Icing" in Drones, 2024.
·
AIAA
Atmospheric and Space Environments Technical Committee. 2023 – today.
·
EUROCAE
(European Organisation for Civil Aviation Equipment),
WG-112 SG-4
Vertical Take-off and Landing (VTOL). 2022 – today.
·
SAE
Technical Committee –Aircraft Icing Technology (AC-9C).
2018 – today.
·
Svalbard
Integrated Arctic Earth Observing System. Science Optimisation
Advisory Group and Remote Sensing
Working Group. 2022 – today.
·
Conference
host of the 1st and 2nd International
Workshop on UAV Icing. 2022 & 2024.
·
Session
chair for AIAA Aviation Forum, 2022
& 2024.
·
Scientific
committee member for the 20th
International Workshop on Atmospheric Icing of Structures (IWAS) in Narvik, 2024.
·
Scientific
committee member for the 8th
ISARRA (International Society for Atmospheric Research using Remotely piloted
Aircraft) conference in Bergen. 2023.
·
Guest
Editor for the Special Issue "Atmospheric
Measurements Using Unmanned Systems" in Drones, 2020-2021.
·
Reviewer
for several journals. See Publons.
·
Reviewer
for AIAA Aviation Atmospheric and Space Environments (2022) and SAE
International Conference on Icing of Aircraft, Engines, and Structures (2023).
Norwegian
University of Science and Technology (NTNU)
Autonomous Marine
Operations and Systems (AMOS)
Department of Engineering Cybernetics
(ITK)
Address: O.S. Bragstads plass
2D, NO7491 Trondheim, NORWAY