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A list of all the posts and pages found on the site. For you robots out there, there is an XML version available for digesting as well.
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Thermische Untersuchung der Eisbildung und des Anti-Icings an einem Rotorblatt für Windenergieanlagen
Published in Studienarbeit/study thesis. University of Stuttgart, 2012
Recommended citation: Hann, R. (2012). Thermische Untersuchung der Eisbildung und des Anti-Icings an einem Rotorblatt für Windenergieanlagen. Studienarbeit/study thesis. University of Stuttgart.
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Aeroakustische Analyse Vereister Profile einer Windenergieanlage
Published in Diplomarbeit/ Final-year thesis. University of Stuttgart, 2013
Recommended citation: Hann, R. (2013). Aeroakustische Analyse Vereister Profile einer Windenergieanlage. Diplomarbeit/ Final-year thesis. University of Stuttgart.
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Numerical investigation on the noise generation of iced wind turbine airfoils
Published in Winterwind Conference, 2013
Recommended citation: 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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Prediction of flow-induced noise sources of wind turbines and application examples
Published in International Journal of Aeroacoustics, 14(5-6), 675-714, 2015
Recommended citation: 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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Polychlorinated biphenyls in tree bark near former manufacturing and incineration facilities in Sauget, Illinois, United States
Published in Environmental Science & Technology, 50(12), 6207-6215, 2016
Recommended citation: 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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Aerodynamic performance of the NREL S826 airfoil in icing conditions
Published in Wind Energy Science Discussions, 1-17, 2017
Recommended citation: 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.
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Impact of atmospheric icing on UAV aerodynamic performance
Published in In 2017 Workshop on Research, Education and Development of Unmanned Aerial Systems (RED-UAS), pp. 66-71. IEEE, 2017
Recommended citation: 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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Response to Comment on “Polychlorinated Biphenyls in Tree Bark near Former Manufacturing and Incinerator Facilities in Sauget, Illinois, United States”
Published in Environmental Science & Technology. 2017, 51, 8206−8207, 2017
Recommended citation: 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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Aerodynamic modeling of the skywalker x8 fixed-wing unmanned aerial vehicle
Published in In 2018 International Conference on Unmanned Aircraft Systems (ICUAS), pp. 826-835. IEEE, 2018
Recommended citation: 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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UAV Icing: Comparison of LEWICE and FENSAP-ICE for Ice Accretion and Performance Degradation
Published in AIAA 2018-2861. AIAA Atmospheric and Space Environments Conference, 2018
Recommended citation: 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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Derivation of Flow Rate and Calibration Method for High-Volume Air Samplers
Published in Atmospheric Measurement Techniques, 12(9), 4725-4731, 2019
Recommended citation: 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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Experimental Investigations of an Icing Protection System for UAVs
Published in SAE Technical Paper. No. 2019-01-2038, 2019
Recommended citation: 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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Stability of a Flying Wing UAV in Icing Conditions
Published in 8th European Conference for Aeronautics and Aerospace Sciences (EUCASS), 2019
Recommended citation: 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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The Influence of Meteorological Conditions on the Icing Performance Penalties on a UAV Airfoil
Published in 8th European Conference for Aeronautics and Aerospace Sciences (EUCASS), 2019
Recommended citation: 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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UAV Icing: Comparison of LEWICE and FENSAP-ICE for Anti-Icing Loads
Published in AIAA 2019-1286. AIAA Scitech Forum, 2019
Recommended citation: 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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UAV Icing: Ice Accretion Experiments and Validation
Published in SAE Technical Paper. No. 2019-01-2037, 2019
Recommended citation: 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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Atmospheric Deposition of Organochlorine Pesticides and Industrial Compounds to Seasonal Surface Snow at Four Glacier Sites on Svalbard, 2013-2014
Published in Environmental Science & Technology, vol. 54, issue 15, pp. 9265–9273, 2020
Recommended citation: 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 & Technology, vol. 54, issue 15, pp. 9265–9273. doi.org/10.1021/acs.est.0c01537
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Atmospheric Ice Accretions, Aerodynamic Icing Penalties, and Ice Protection Systems on Unmanned Aerial Vehicles
Published in PhD Thesis NTNU 2020:200, Norwegian University of Science and Technology, 2020
Recommended citation: Hann, R. (2020). Atmospheric Ice Accretions, Aerodynamic Icing Penalties, and Ice Protection Systems on Unmanned Aerial Vehicles. PhD Thesis NTNU 2020:200, Norwegian University of Science and Technology.
Deposition of Polychlorinated Biphenyls to Firn and Ice Cores at Opposite Polar Sites: Site M, Dronning Maud Land, Antarctica, and Holtedahlfonna, Svalbard
Published in ACS Earth and Space Chemistry 4 (11), pp. 2096-2104, 2020
Recommended citation: 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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Design of a Low-Speed Icing Wind Tunnel for UAVs
Published in Deutsche Gesellschaft für Luft- und Raumfahrt, 2020
Recommended citation: 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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Experimental and Numerical Icing Penalties of an S826 Airfoil at Low Reynolds Numbers
Published in Aerospace, 7(4), 46, 2020
Recommended citation: 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. doi.org/10.3390/aerospace7040046
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Long Range Path Planning Using an Aircraft Performance Model for Battery Powered sUAS Equipped with Icing Protection System
Published in IEEE Journal on Miniaturization for Air and Space Systems, 2020
Recommended citation: Hovenburg, A.R., Andrade, F.A.A., Hann, R., Rodin, C.D., 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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Optimal Mission Planning for Fixed-Wing UAVs with Electro-Thermal Icing Protection and Hybrid-Electric Power Systems
Published in In 2020 International Conference on Unmanned Aircraft Systems (ICUAS), pp. 651-660, IEEE, 2020
Recommended citation: 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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Unsettled Topics in Unmanned Aerial Vehicle Icing
Published in SAE International, SAE EDGE Research Report EPR2020008, 2020
Recommended citation: 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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Aerodynamic roughness length of crevassed tidewater glaciers from UAV mapping
Published in The Cryosphere, 15, 5513–5528, 2021
Recommended citation: Dachauer, A., Hann, R., Hodson, A.J. (2021). Aerodynamic roughness length of crevassed tidewater glaciers from UAV mapping. The Cryosphere, 15, 5513–5528. doi.org/10.5194/tc-15-5513-2021
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Coastal Erosion of Arctic Cultural Heritage in Danger: A Case Study from Svalbard, Norway
Published in Water, 13(6), 784. (Hann, R. contribution: drone mapping), 2021
Recommended citation: 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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Detection and Isolation of Propeller Icing and Electric Propulsion System Faults in Fixed-Wing UAVs
Published in In 2021 International Conference on Unmanned Aircraft Systems (ICUAS), pp. 377-386, IEEE, 2021
Recommended citation: 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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Experimental Heat Loads for Electrothermal Anti-Icing and De-Icing on UAVs
Published in Aerospace, 8(3), 83, 2021
Recommended citation: 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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Historic Atmospheric Organochlorine Pesticide and Halogenated Industrial Compound Inputs to Glacier Ice Cores in Antarctica and the Arctic
Published in ACS Earth Space Chem, 5, 9, 2534–2543, 2021
Recommended citation: 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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Scientific Applications of Unmanned Vehicles in Svalbard
Published in SESS Report 2020, Svalbard Integrated Arctic Earth Observing System, 2021
Recommended citation: 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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SIOS’s Earth Observation (EO), Remote Sensing (RS), and Operational Activities in Response to COVID-19
Published in Remote Sensing, 13(4), 712, 2021
Recommended citation: 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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UAV Atmospheric Icing Limitations: Climate Report for Norway and Surrounding Regions
Published in Report. UBIQ Aerospace, 2021
Recommended citation: 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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UAV Icing: Numerical Simulation of Propeller Ice Accretion
Published in AIAA 2021-2673. AIAA Aviation 2021 Forum, 2021
Recommended citation: 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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UAV icing: the influence of airspeed and chord length on performance degradation
Published in Aircraft Engineering and Aerospace Technology, Vol. 93, No. 5, 2021
Recommended citation: 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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Hazards of In-flight Icing on Unmanned Aircraft
Published in Conference paper. SCI-328 Symposium on ‘Flight Testing of Unmanned Aerial Systems (UAS)’, 2022
Recommended citation: 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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Summary from the 1st AIAA Ice Prediction Workshop
Published in AIAA Atmospheric and Space Environments Conference, 2022
Recommended citation: 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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UAV Icing: A Performance Model for a UAV Propeller in Icing Conditions
Published in AIAA Atmospheric and Space Environments Conference, 2022
Recommended citation: 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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UAV Icing: A Unified Icing Severity Index Derived from Performance Degradation
Published in AIAA Atmospheric and Space Environments Conference, 2022
Recommended citation: 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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UAV Icing: Challenges for computational fluid dynamic (CFD) tools
Published in International Conference on Computational Fluid Dynamics, ICCFD11, 2022
Recommended citation: Hann, R. (2022). UAV Icing: Challenges for computational fluid dynamic (CFD) tools. International Conference on Computational Fluid Dynamics, ICCFD11.
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UAV Icing: Experimental and Numerical Study of Glaze Ice
Published in AIAA 2022-1976. AIAA SciTech Forum, 2022
Recommended citation: 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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UAV Icing: Experimental Investigation of Ice Shedding Times with an Electrothermal De-Icing System
Published in AIAA Atmospheric and Space Environments Conference, 2022
Recommended citation: 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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UAV Icing: Ice Shedding Detection Method for an Electrothermal De-Icing System
Published in AIAA Atmospheric and Space Environments Conference, 2022
Recommended citation: 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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Update to Scientific Applications of Unmanned Vehicles in Svalbard
Published in SESS Report 2021, Svalbard Integrated Arctic Earth Observing System, 2022
Recommended citation: 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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Wind Estimation with Multirotor UAVs
Published in Atmosphere, 13, 551, 2022
Recommended citation: 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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CFD icing simulations on a fixed-wing UAV engine inlet
Published in Deutscher Luft- und Raumfahrtkongress (DLRK), 2023
Recommended citation: 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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Flow Structure around a Multicopter Drone: A Computational Fluid Dynamics Analysis for Sensor Placement Considerations
Published in Drones, 7(7), 467, 2023
Recommended citation: 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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How Many Reindeer? UAV Surveys as an Alternative to Helicopter or Ground Surveys for Estimating Population Abundance in Open Landscapes
Published in Remote Sensing, 15(1), 9, 2023
Recommended citation: 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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Ice Accretion: Image Post-Processing Measurement Techniques for 2D Ice Shapes
Published in Aerospace, 10(5), 451, 2023
Recommended citation: 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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Identification of an Electric UAV Propulsion System in Icing Conditions
Published in SAE International Conference on Icing of Aircraft, Engines, and Structures, 2023
Recommended citation: 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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Inner-Loop Control of Fixed-Wing Unmanned Aerial Vehicles in Icing Conditions
Published in AIAA SCITECH Forum. AIAA 2023-1049, 2023
Recommended citation: Högnadottir, S., Gryte, K., 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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Numerical Simulation of In-Flight Icing of Unmanned Aerial Vehicles
Published in In: Habashi, W.G. (eds) Handbook of Numerical Simulation of In-Flight Icing. Springer, 2023
Recommended citation: 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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Practical Guidelines for Scientific Application of Uncrewed Aerial Vehicles in Svalbard
Published in SESS Report 2022, Svalbard Integrated Arctic Earth Observing System, 2023
Recommended citation: 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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UAM Icing: Ice Accretion Simulations and Experiments of an eVTOL Rotor
Published in SAE International Conference on Icing of Aircraft, Engines, and Structures, 2023
Recommended citation: 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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UAV Icing: 3D simulations of propeller icing effects and anti-icing heat loads
Published in SAE International Conference on Icing of Aircraft, Engines, and Structures, 2023
Recommended citation: 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/10.4271/2023-01-1383
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UAV Icing: A survey of recent developments in ice detection methods
Published in 22nd IFAC World Congress, Yokohama, 2023
Recommended citation: 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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UAV icing: Development of an ice protection system for the propeller of a small UAV
Published in Cold Regions Science and Technology, 213, 103938, 2023
Recommended citation: 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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UAV Icing: Experimental validation data for predicting ice shapes at low Reynolds numbers
Published in SAE International Conference on Icing of Aircraft, Engines, and Structures, 2023
Recommended citation: 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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UAV Icing: Icing Cases for Validation of Path Planning Method
Published in SAE International Conference on Icing of Aircraft, Engines, and Structures, 2023
Recommended citation: 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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UAV Icing: Intercycle Ice Effects on Aerodynamic Performance
Published in SAE International Conference on Icing of Aircraft, Engines, and Structures, 2023
Recommended citation: 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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UAV Icing: Numerical Simulation of Icing Effects on Wing and Empennage
Published in SAE International Conference on Icing of Aircraft, Engines, and Structures, 2023
Recommended citation: 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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2nd International UAV Icing Workshop: Book of Abstracts
Published in UAV Icing Workshop, Trondheim, Norway, 2024
Recommended citation: 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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Aerospace Developments: Vol. 2
Published in SAE Technical Paper EPRCOMPV302023, 2024
Recommended citation: Walthall, R., David, A., Farell, J., Hann, R., Johansen, T.A. (2024). Aerospace Developments: Vol. 2. SAE Technical Paper EPRCOMPV302023.
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Computational Modelling and Simulation Methods
Published in STO Technical Report, AVT-299 Assessment of Anti-Icing and De-Icing Technologies for Air and Sea Vehicles, 2024
Recommended citation: 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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Exploring Segment Anything Foundation Models for Out of Domain Crevasse Drone Image Segmentation
Published in Proceedings of the 6th Northern Lights Deep Learning Conference (NLDL), 2024
Recommended citation: 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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Ice Detection Technologies
Published in STO Technical Report, AVT-299 Assessment of Anti-Icing and De-Icing Technologies for Air and Sea Vehicles, 2024
Recommended citation: 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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Ice Protection Systems
Published in STO Technical Report, AVT-299 Assessment of Anti-Icing and De-Icing Technologies for Air and Sea Vehicles, 2024
Recommended citation: 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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Icing Impact on UAS and AAM Operations in Selected US Metropolitan Areas
Published in Report. UBIQ Aerospace, 2024
Recommended citation: 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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Requirements for UAV Operations in Cold Climates and Icing Conditions
Published in Report. UBIQ Aerospace, 2024
Recommended citation: Hann, R., Borup, K.T. (2024). Requirements for UAV Operations in Cold Climates and Icing Conditions. Report. UBIQ Aerospace.
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Summary From the 2nd AIAA Ice Prediction Workshop
Published in AIAA 2024-3604. AIAA Aviation Forum and Ascend, 2024
Recommended citation: 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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Technical requirements for RPAS operations in cold climates
Published in 20th International Workshop on Atmospheric Icing of Structures (IWAIS), 2024
Recommended citation: 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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Time-Domain System Identification and Validation of Small Fixed-Wing UAV Dynamics
Published in AIAA 2024-4653. AIAA Aviation Forum and Ascend, 2024
Recommended citation: 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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UAV Icing: Aerodynamic Degradation Caused by Intercycle and Runback Ice Shapes on an RG-15 Airfoil
Published in Drones, 8(12), 775, 2024
Recommended citation: 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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UAV Icing: Comparison of Simulated 3D and 2D Ice Accretion on Wings
Published in AIAA 2024-4451. AIAA Aviation Forum and Ascend, 2024
Recommended citation: 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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UAV Icing: Comparison of the Influence of Icing on a Rotor in Vertical and Horizontal Flight
Published in 20th International Workshop on Atmospheric Icing of Structures (IWAIS), 2024
Recommended citation: 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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UAV Icing: Experimental Investigation and Numerical CHT Simulations of a Propeller Ice Protection System
Published in AIAA SciTech Forum, AIAA 2024-0871, 2024
Recommended citation: 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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UAV Icing: Impact Testing of Ice Fragments on a Propeller
Published in AIAA 2024-4352. AIAA Aviation Forum and Ascend, 2024
Recommended citation: 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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UAV Icing: Validation of an Ice Protection System Design for a Propeller
Published in AIAA 2024-3568. AIAA Aviation Forum and Ascend, 2024
Recommended citation: 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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Modeling and identification of a small fixed-wing UAV using estimated aerodynamic angles
Published in CEAS Aeronautical Journal, Volume 16, pages 501–523, 2025
Recommended citation: Løw-Hansen, B., Hann, R., Gryte, K., Johansen, T.A., Deiler, C. (2025). Modeling and identification of a small fixed-wing UAV using estimated aerodynamic angles. CEAS Aeronautical Journal, Volume 16, pages 501–523. doi.org/10.1007/s13272-025-00816-3
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Surging glaciers in Svalbard: Current knowledge and perspectives for monitoring
Published in SESS Report 2024, Svalbard Integrated Arctic Earth Observing System, 2025
Recommended citation: 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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UAV Icing: Icing Effects on Control Surfaces
Published in AIAA Aviation Forum. AIAA 2025-3388, 2025
Recommended citation: Lindner, M., Hann, R. (2025). UAV Icing: Icing Effects on Control Surfaces. AIAA Aviation Forum. AIAA 2025-3388. doi.org/10.2514/6.2025-3388
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Unmanned Aerial Vehicles for Real-Time Vegetation Monitoring in Antarctica: A Review
Published in Remote Sensing. 17(2), 304, 2025
Recommended citation: 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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Utilizing Seismic Station Internal GPS for Tracking Surging Glacier Sliding Velocity
Published in Journal of Glaciology, Volume 71, 2025
Recommended citation: Gajek, W., Luckman, A., Harcourt, W., Pearce, D., Hann, R. (2025). Utilizing Seismic Station Internal GPS for Tracking Surging Glacier Sliding Velocity. Journal of Glaciology, Volume 71. doi.org/10.1017/jog.2025.30
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Assessment of Anti-Icing and De-Icing Technologies for Air and Sea Vehicles. STO Technical Report TR-AVT-299 – Executive Summary
Published in NATO Science and Technology Organization, 2026
Recommended citation: Benmeddour, A., Kim, K.-H., Blanchard, G., Agüero Bruna, A., Deiler, C., Frövel, M., Gagnon, R., García-Gallego, P., Håkonsen, V., Hawkins, C. J., Martin, B., Mingione, G., Mora-Nogués, J., Niemenmaa, R., Kreeger, E. R., Raimondo, M., Saracoglu, B., Uihlein, T., Van Beeck, J., Veronesi, F., Hann, R. et al. (2026). Assessment of Anti-Icing and De-Icing Technologies for Air and Sea Vehicles. STO Technical Report TR-AVT-299 – Executive Summary, NATO Science and Technology Organization. doi.org/10.14339/STO-TR-AVT-299-ES-PDF
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Assessment of Anti-Icing and De-Icing Technologies for Air and Sea Vehicles. STO Technical Report TR-AVT-299
Published in NATO Science and Technology Organization, 2026
Recommended citation: Benmeddour, A., Kim, K.-H., Blanchard, G., Agüero Bruna, A., Deiler, C., Frövel, M., Gagnon, R., García-Gallego, P., Håkonsen, V., Hawkins, C. J., Martin, B., Mingione, G., Mora-Nogués, J., Niemenmaa, R., Kreeger, E. R., Raimondo, M., Saracoglu, B., Uihlein, T., Van Beeck, J., Veronesi, F., Hann, R. et al. (2026). Assessment of Anti-Icing and De-Icing Technologies for Air and Sea Vehicles. STO Technical Report TR-AVT-299, NATO Science and Technology Organization. doi.org/10.14339/STO-TR-AVT-299
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Ice Patterns: Algorithmic Glaciers
Published in Artistic result. Polarlit, Volume 3, ISSN: 2704-2103, 2026
Recommended citation: Hann, R. (2026). Ice Patterns: Algorithmic Glaciers. Artistic result. Polarlit, Volume 3, ISSN: 2704-2103
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Low-Reynolds-number ice-shape validation data for icing-CFD codes, with application to FENSAP-ICE
Published in Cold Regions Science and Technology, 253, 105119, 2026
Recommended citation: Lindner, M., Hann, R. (2026). Low-Reynolds-number ice-shape validation data for icing-CFD codes, with application to FENSAP-ICE. Cold Regions Science and Technology, 253, 105119. doi.org/10.1016/j.coldregions.2026.105119
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Surging glaciers in Svalbard: Observing their distribution, characteristics and evolution
Published in Earth-Science Reviews, 275, 105410, 2026
Recommended citation: Harcourt, W. D., Pearce, D. M., Gajek, W., Lovell, H., Mannerfelt, E. S., Kääb, A., Benn, D. I., Luckman, A., Hann, R., Kohler, J., Strozzi, T., McCerery, R., Davies, B. J. (2026). Surging glaciers in Svalbard: Observing their distribution, characteristics and evolution. Earth-Science Reviews, 275, 105410. doi.org/10.1016/j.earscirev.2026.105410
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Third Update to Scientific Applications of Uncrewed Vehicles in Svalbard
Published in SESS Report 2025, Svalbard Integrated Arctic Earth Observing System, 2026
Recommended citation: Hann, R., Bärfuß, K., Betlem, P., Ewertowski, M., Günzel, L., Jonassen, M., Lampert, A., Laska, M., Storvold, R., Sobota, I. (2026). Third Update to Scientific Applications of Uncrewed Vehicles in Svalbard. SESS Report 2025, Svalbard Integrated Arctic Earth Observing System. doi.org/10.5281/zenodo.17832158
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UAV Icing at Low Reynolds Numbers: RG-15 Airfoil Drag Increase Prediction Based on Batch-Automated CFD Simulations
Published in Journal of Aerospace Engineering, Volume 39, Issue 5, 2026
Recommended citation: Wallisch, J., Lindner, M., Borup, K.T., Hann, R. (2026). UAV Icing at Low Reynolds Numbers: RG-15 Airfoil Drag Increase Prediction Based on Batch-Automated CFD Simulations. Journal of Aerospace Engineering, Volume 39, Issue 5. doi.org/10.1061/JAEEEZ.ASENG-6806
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UAV Icing: Comparison of 2D and 3D Numerical Tools for the Predictions of the Ice Accretion on UAV Propellers
Published in AIAA 2026-4284. AIAA AVIATION 2026 Forum, 2026
Recommended citation: Müller, N.C., Villeneuve, E., Hann, R. (2026). UAV Icing: Comparison of 2D and 3D Numerical Tools for the Predictions of the Ice Accretion on UAV Propellers. AIAA 2026-4284. AIAA AVIATION 2026 Forum. doi.org/10.2514/6.2026-4284
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UAV Icing: Experimental and Numerical Investigation of Aerodynamic Performance Degradation of the RG-15 Airfoil at Low Reynolds Numbers
Published in AIAA 2026-4285. AIAA AVIATION 2026 Forum, 2026
Recommended citation: Röß, J., Deck, U., Hann, R. (2026). UAV Icing: Experimental and Numerical Investigation of Aerodynamic Performance Degradation of the RG-15 Airfoil at Low Reynolds Numbers. AIAA 2026-4285. AIAA AVIATION 2026 Forum. doi.org/10.2514/6.2026-4285
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UAV Icing: Experimental Characterization of the Performance Impact of Ice Accretion on a Propeller
Published in Drones, 10(3), 166, 2026
Recommended citation: Müller, N.C., Villeneuve, E., Hann, R. (2026). UAV Icing: Experimental Characterization of the Performance Impact of Ice Accretion on a Propeller. Drones, 10(3), 166. doi.org/10.3390/drones10030166
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UAV Icing: Operational Risk Management of Icing Conditions for Beyond Visual Line of Sight (BVLOS) Missions
Published in AIAA 2026-4281. AIAA AVIATION 2026 Forum, 2026
Recommended citation: Hann, R. (2026). UAV Icing: Operational Risk Management of Icing Conditions for Beyond Visual Line of Sight (BVLOS) Missions. AIAA 2026-4281. AIAA AVIATION 2026 Forum. doi.org/10.2514/6.2026-4281
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CrevasseSeg: A Label-Efficient UAV Crevasse Segmentation Framework
Published in Proceedings of the 10th Northern Lights Deep Learning Conference (NLDL), 2027
Recommended citation: Wallace, S., Harcourt, W., Hann, R., Durrant, A., Somayajulu, S., Leontidis, G. (2027). CrevasseSeg: A Label-Efficient UAV Crevasse Segmentation Framework. Proceedings of the 10th Northern Lights Deep Learning Conference (NLDL).
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talks
Thermal analysis of a heated rotor blade for wind turbines
Published:
Hann, R., Neumann, S. O., Miller, A., Dillingh, J. (2012). Thermal analysis of a heated rotor blade for wind turbines. Winterwind Conference, Skellefteå.
Recommended citation: Hann, R., Neumann, S. O., Miller, A., Dillingh, J. (2012). Thermal analysis of a heated rotor blade for wind turbines. Winterwind Conference, Skellefteå.
Simulation and validation of the aerodynamic performance of iced wind turbine airfoils
Published:
Hann, R. (2014). Simulation and validation of the aerodynamic performance of iced wind turbine airfoils. Winterwind Conference, Sundsvall.
Recommended citation: Hann, R. (2014). Simulation and validation of the aerodynamic performance of iced wind turbine airfoils. Winterwind Conference, Sundsvall.
Applications of iced wind turbines noise simulations
Published:
Hann, R. (2016). Applications of iced wind turbines noise simulations. Winterwind Conference, Åre.
Recommended citation: Hann, R. (2016). Applications of iced wind turbines noise simulations. Winterwind Conference, Åre.
Cold Climate Wind Energy in Longyearbyen, 78°N
Published:
Hann, R., Veshniakova, L., Romero, M., Cicilio, P.R. (2017). Cold Climate Wind Energy in Longyearbyen, 78°N. Arctic Change Conference, Québec City.
Recommended citation: Hann, R., Veshniakova, L., Romero, M., Cicilio, P.R. (2017). Cold Climate Wind Energy in Longyearbyen, 78°N. Arctic Change Conference, Québec City.
Icing on Unmanned Aerial Vehicles (UAVs)
Published:
Hann, R. (2018). Icing on Unmanned Aerial Vehicles (UAVs). Wind Turbine Icing & Ice Prevention Forum, Berlin.
Recommended citation: Hann, R. (2018). Icing on Unmanned Aerial Vehicles (UAVs). Wind Turbine Icing & Ice Prevention Forum, Berlin.
Icing Protection Systems for UAVs in the Arctic
Published:
Hann, R. (2018). Icing Protection Systems for UAVs in the Arctic. Arctic Change Conference, Ottawa.
Recommended citation: Hann, R. (2018). Icing Protection Systems for UAVs in the Arctic. Arctic Change Conference, Ottawa.
Wind Turbine Noise due to Icing
Published:
Hann, R. (2018). Wind Turbine Noise due to Icing. Wind Turbine Icing & Ice Prevention Forum, Berlin.
Recommended citation: Hann, R. (2018). Wind Turbine Noise due to Icing. Wind Turbine Icing & Ice Prevention Forum, Berlin.
Glacier Mapping and Wind Estimation with UAVs on Svalbard
Published:
Hann, R., Hodson, A., Jonassen, M. (2019). Glacier Mapping and Wind Estimation with UAVs on Svalbard. Svalbard Science Conference, Oslo.
Recommended citation: Hann, R., Hodson, A., Jonassen, M. (2019). Glacier Mapping and Wind Estimation with UAVs on Svalbard. Svalbard Science Conference, Oslo.
Unmanned Aerial Vehicles (UAVs) in Cold Climate and Wind Energy Applications
Published:
Hann, R. (2019). Unmanned Aerial Vehicles (UAVs) in Cold Climate and Wind Energy Applications. Winterwind Conference, Umeå.
Recommended citation: Hann, R. (2019). Unmanned Aerial Vehicles (UAVs) in Cold Climate and Wind Energy Applications. Winterwind Conference, Umeå.
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
Published:
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.
Recommended citation: 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.
Applications of Unmanned Aerial Vehicles in Svalbard
Published:
Hann, R. (2020). Applications of Unmanned Aerial Vehicles in Svalbard. Arctic Change Conference, Longyearbyen.
Recommended citation: Hann, R. (2020). Applications of Unmanned Aerial Vehicles in Svalbard. Arctic Change Conference, Longyearbyen.
Deposition of polychlorinated biphenyls to ice cores at opposite polar sites: Holtedahlfonna, Svalbard and Site M, Antarctica
Published:
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.
Recommended citation: 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.
Icing on UAVs
Published:
Hann, R. (2020). Icing on UAVs. Invited talk, Advanced Modeling & Simulation (AMS) Seminar Series, NASA, Ames.
Recommended citation: Hann, R. (2020). Icing on UAVs. Invited talk, Advanced Modeling & Simulation (AMS) Seminar Series, NASA, Ames.
Opportunities and Challenges for Unmanned Aerial Vehicles (UAVs) in the Arctic
Published:
Hann, R. (2020). Opportunities and Challenges for Unmanned Aerial Vehicles (UAVs) in the Arctic. SIOS Polar Night Week Conference, Longyearbyen.
Recommended citation: Hann, R. (2020). Opportunities and Challenges for Unmanned Aerial Vehicles (UAVs) in the Arctic. SIOS Polar Night Week Conference, Longyearbyen.
Overview of Unsettled Topics in UAV Icing
Published:
Hann, R. (2020). Overview of Unsettled Topics in UAV Icing. SAE International AeroTech Digital Summit, Online.
Recommended citation: Hann, R. (2020). Overview of Unsettled Topics in UAV Icing. SAE International AeroTech Digital Summit, Online.
The Influence of Meteorological Conditions on the Icing Performance Penalties on a UAV Propeller
Published:
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.
Recommended citation: 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.
A comparison of PCB congener, organochlorine pesticide, and industrial compound burdens in firn and ice cores from Antarctica and Svalbard
Published:
Hermanson, M.H., Isaksson, E., Hann, R., Ruggirello, R.M., Teixeira, C., Muir, D.C.G. (2021). 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.
Recommended citation: Hermanson, M.H., Isaksson, E., Hann, R., Ruggirello, R.M., Teixeira, C., Muir, D.C.G. (2021). 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.
Applications of Unmanned Vehicles in Svalbard
Published:
Hann, R. (2021). Applications of Unmanned Vehicles in Svalbard. SIOS Online Conference on Remote Sensing in Svalbard, Online.
Recommended citation: Hann, R. (2021). Applications of Unmanned Vehicles in Svalbard. SIOS Online Conference on Remote Sensing in Svalbard, Online.
Applications of Unmanned Vehicles in Svalbard
Published:
Hann, R. (2021). Applications of Unmanned Vehicles in Svalbard. Arctic Science Summit Week, Online.
Recommended citation: Hann, R. (2021). Applications of Unmanned Vehicles in Svalbard. Arctic Science Summit Week, Online.
Atmospheric icing as a hazard to unmanned aircraft applications
Published:
Hann, R. (2021). Atmospheric icing as a hazard to unmanned aircraft applications. Arctic Safety Conference, Longyearbyen.
Recommended citation: Hann, R. (2021). Atmospheric icing as a hazard to unmanned aircraft applications. Arctic Safety Conference, Longyearbyen.
Hazards of In-flight Icing on Unmanned Aircraft
Published:
Hann, R. (2021). Hazards of In-flight Icing on Unmanned Aircraft. SAE Business of Automated Mobility (BAM) Forum, Online.
Recommended citation: Hann, R. (2021). Hazards of In-flight Icing on Unmanned Aircraft. SAE Business of Automated Mobility (BAM) Forum, Online.
How to publish a paper
Published:
Hann, R. (2021). How to publish a paper. SCOPE – 1st student-led conference on Polar Environment, Longyearbyen.
Recommended citation: Hann, R. (2021). How to publish a paper. SCOPE – 1st student-led conference on Polar Environment, Longyearbyen.
SESS Report Release: Scientific Applications of Unmanned Vehicles in Svalbard
Published:
Hann, R. (2021). SESS Report Release: Scientific Applications of Unmanned Vehicles in Svalbard. SIOS Polar Night Week, Longyearbyen.
Recommended citation: Hann, R. (2021). SESS Report Release: Scientific Applications of Unmanned Vehicles in Svalbard. SIOS Polar Night Week, Longyearbyen.
Synergies between icing on wind turbines and UAVs
Published:
Hann, R. (2021). Synergies between icing on wind turbines and UAVs. Winterwind Conference, Online.
Recommended citation: Hann, R. (2021). Synergies between icing on wind turbines and UAVs. Winterwind Conference, Online.
The Role of Glacier Crevasses in the Context of Climate Change
Published:
Hann, R. (2021). The Role of Glacier Crevasses in the Context of Climate Change. Svalbard Science Conference, Oslo.
Recommended citation: Hann, R. (2021). The Role of Glacier Crevasses in the Context of Climate Change. Svalbard Science Conference, Oslo.
Drone-based mapping of Gruvefjellet in Spring and Summer for cornice risk assessment
Published:
Hann, R. (2022). Drone-based mapping of Gruvefjellet in Spring and Summer for cornice risk assessment. SIOS Online Conference, Online.
Recommended citation: Hann, R. (2022). Drone-based mapping of Gruvefjellet in Spring and Summer for cornice risk assessment. SIOS Online Conference, Online.
Drone-based mapping of surging Scheelebreen and Vallåkrabreen glaciers in Svalbard
Published:
Hann, R. (2022). Drone-based mapping of surging Scheelebreen and Vallåkrabreen glaciers in Svalbard. SIOS Online Conference, Online.
Recommended citation: Hann, R. (2022). Drone-based mapping of surging Scheelebreen and Vallåkrabreen glaciers in Svalbard. SIOS Online Conference, Online.
UAV Icing – The freezing barrier for the future of aviation
Published:
Hann, R. (2022). UAV Icing – The freezing barrier for the future of aviation. AMOS Days November 2022, Trondheim.
Recommended citation: Hann, R. (2022). UAV Icing – The freezing barrier for the future of aviation. AMOS Days November 2022, Trondheim.
Update to Scientific Applications of Unmanned Vehicles in Svalbard
Published:
Hann, R. (2022). Update to Scientific Applications of Unmanned Vehicles in Svalbard. SIOS Polar Night Week 2022, Longyearbyen.
Recommended citation: Hann, R. (2022). Update to Scientific Applications of Unmanned Vehicles in Svalbard. SIOS Polar Night Week 2022, Longyearbyen.
Mapping glaciers & counting reindeer: drone applications in Svalbard
Published:
Hann, R. (2023). Mapping glaciers & counting reindeer: drone applications in Svalbard. Svalbard Science Conference, Oslo.
Recommended citation: Hann, R. (2023). Mapping glaciers & counting reindeer: drone applications in Svalbard. Svalbard Science Conference, Oslo.
The challenge of atmospheric in-flight icing on RPAS
Published:
Hann, R. (2023). The challenge of atmospheric in-flight icing on RPAS. 8th ISARRA Conference (International Society for Atmospheric Research using Remotely-piloted Aircraft), Bergen.
Recommended citation: Hann, R. (2023). The challenge of atmospheric in-flight icing on RPAS. 8th ISARRA Conference (International Society for Atmospheric Research using Remotely-piloted Aircraft), Bergen.
Challenges in In-flight Icing for Disruptive Aircraft Designs and AAM
Published:
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, Las Vegas.
Recommended citation: 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, Las Vegas.
Frozen Pollutants: Organic Contaminants in Svalbard Snow & Ice
Published:
Hermanson, M.H., Isaksson, E, Hann, R., Gabrielsen, G.W. (2024). Frozen Pollutants: Organic Contaminants in Svalbard Snow & Ice. Arctic Frontiers Conference 2024, Tromsø.
Recommended citation: Hermanson, M.H., Isaksson, E, Hann, R., Gabrielsen, G.W. (2024). Frozen Pollutants: Organic Contaminants in Svalbard Snow & Ice. Arctic Frontiers Conference 2024, Tromsø.
Investigating the signature of a tidewater glacier surge behaviour using geomorphological, sedimentological and geotechnical data, Borebreen, Svalbard
Published:
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 geomorphological, sedimentological and geotechnical data, Borebreen, Svalbard. General Assembly of the European Geosciences Union (EGU24), Vienna.
Recommended citation: 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 geomorphological, sedimentological and geotechnical data, Borebreen, Svalbard. General Assembly of the European Geosciences Union (EGU24), Vienna.
Progress, Insights, and Future Direction in UAV Icing
Published:
Hann, R. (2024). Progress, Insights, and Future Direction in UAV Icing. Keynote presentation, 2nd International UAV Icing Workshop, Trondheim.
Recommended citation: Hann, R. (2024). Progress, Insights, and Future Direction in UAV Icing. Keynote presentation, 2nd International UAV Icing Workshop, Trondheim.
Surge initiation at the terminus of Borebreen (Svalbard): Drivers and impact on calving
Published:
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), Vienna.
Recommended citation: 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), Vienna.
The icing barrier for clean aviation
Published:
Hann, R. (2024). The icing barrier for clean aviation. NTNU and Rolls Royce Clean Aviation Evening, Trondheim.
Recommended citation: Hann, R. (2024). The icing barrier for clean aviation. NTNU and Rolls Royce Clean Aviation Evening, Trondheim.
Applications of the Observational Pyramid in Glaciology
Published:
Hann, R. (2025). Applications of the Observational Pyramid in Glaciology. Ny-Ålesund Glaciology Flagship Meeting, Oslo.
Recommended citation: Hann, R. (2025). Applications of the Observational Pyramid in Glaciology. Ny-Ålesund Glaciology Flagship Meeting, Oslo.
Arctic Drone Applications for FAIR Data Management
Published:
Hann, R. (2025). Arctic Drone Applications for FAIR Data Management. Invited speaker, NTNU Research Data Infrastructure Day, Trondheim.
Recommended citation: Hann, R. (2025). Arctic Drone Applications for FAIR Data Management. Invited speaker, NTNU Research Data Infrastructure Day, Trondheim.
Drones in the Arctic – cold climate challenges for UAVs
Published:
Hann, R. (2025). Drones in the Arctic – cold climate challenges for UAVs. Invited speaker, Cold Weather Operations Conference (CWOC), Hamar.
Recommended citation: Hann, R. (2025). Drones in the Arctic – cold climate challenges for UAVs. Invited speaker, Cold Weather Operations Conference (CWOC), Hamar.
Glaciers from above and below: applying the observational pyramid in Svalbard
Published:
Hann, R. (2025). Glaciers from above and below: applying the observational pyramid in Svalbard. Svalbard Science Conference, Oslo.
Recommended citation: Hann, R. (2025). Glaciers from above and below: applying the observational pyramid in Svalbard. Svalbard Science Conference, Oslo.
Icing on Emerging Aircraft: Research Needs for UAVs and Beyond
Published:
Hann, R. (2025). Icing on Emerging Aircraft: Research Needs for UAVs and Beyond. Invited speaker, European Aerospace Science Network (EASN) Research Webinars, Online.
Recommended citation: Hann, R. (2025). Icing on Emerging Aircraft: Research Needs for UAVs and Beyond. Invited speaker, European Aerospace Science Network (EASN) Research Webinars, Online.
New Frontiers of Aircraft Icing: UAVs and Beyond
Published:
Hann, R. (2025). New Frontiers of Aircraft Icing: UAVs and Beyond. Invited speaker, Aircraft Icing Forum (hosted by FAA and NASA), Online.
Recommended citation: Hann, R. (2025). New Frontiers of Aircraft Icing: UAVs and Beyond. Invited speaker, Aircraft Icing Forum (hosted by FAA and NASA), Online.
The icing barrier – challenges and solutions for in-flight icing on UAVs
Published:
Hann, R. (2025). The icing barrier – challenges and solutions for in-flight icing on UAVs. Invited speaker, Defense Leaders - Navy Tech, Helsinki.
Recommended citation: Hann, R. (2025). The icing barrier – challenges and solutions for in-flight icing on UAVs. Invited speaker, Defense Leaders - Navy Tech, Helsinki.
From Drones to Wind Turbines: Shared Challenges in Atmospheric Icing
Published:
Hann, R. (2026). From Drones to Wind Turbines: Shared Challenges in Atmospheric Icing. Invited speaker, Winterwind, Sundsvall.
Recommended citation: Hann, R. (2026). From Drones to Wind Turbines: Shared Challenges in Atmospheric Icing. Invited speaker, Winterwind, Sundsvall.
Observing Marine-Terminating Glaciers: A Combined Aerial and Underwater Methodology in Ice-Covered Fjords
Published:
Guenzel, L., Hann, R., Lockhart, K. B., Kleber, G., Ludvigsen, M. (2026). Observing Marine-Terminating Glaciers: A Combined Aerial and Underwater Methodology in Ice-Covered Fjords. 2026 Ocean Sciences Meeting (AGU).
Recommended citation: Guenzel, L., Hann, R., Lockhart, K. B., Kleber, G., Ludvigsen, M. (2026). Observing Marine-Terminating Glaciers: A Combined Aerial and Underwater Methodology in Ice-Covered Fjords. 2026 Ocean Sciences Meeting (AGU).
SESS Report Release: Third update to Scientific Applications of Unmanned Vehicles in Svalbard
Published:
Hann, R. (2026). SESS Report Release: Third update to Scientific Applications of Unmanned Vehicles in Svalbard. SIOS Polar Night Week, Online.
Recommended citation: Hann, R. (2026). SESS Report Release: Third update to Scientific Applications of Unmanned Vehicles in Svalbard. SIOS Polar Night Week, Online.
Synergies in Atmospheric Icing: From UAVs to Wind Energy Systems
Published:
Hann, R. (2026). Synergies in Atmospheric Icing: From UAVs to Wind Energy Systems. Invited keynote speaker, Winterwind, Sundsvall.
Recommended citation: Hann, R. (2026). Synergies in Atmospheric Icing: From UAVs to Wind Energy Systems. Invited keynote speaker, Winterwind, Sundsvall.
The Icing Barrier: Enabling Safe UAV Operations in Cold Climates
Published:
Hann, R. (2026). The Icing Barrier: Enabling Safe UAV Operations in Cold Climates. Invited speaker, Unmanned Nordic Conference (UNC), Oslo.
Recommended citation: Hann, R. (2026). The Icing Barrier: Enabling Safe UAV Operations in Cold Climates. Invited speaker, Unmanned Nordic Conference (UNC), Oslo.
