Email: c93jdt@mun.ca

Supervisor: Dr. Trevor Bell

Education:

Mitacs Postdoctoral Fellow with SmartICE (Present) at Memorial University of Newfoundland, Department of Geography (Supervisor: Dr. Trevor Bell)

Postdoctoral Fellow in Landfast Sea Ice Breakup (2022) at Carleton University, Geography and Environmental Studies (Supervisor: Dr. Derek Mueller)

Postdoctoral Fellow of the FATICE project (2021) at NTNU, Department of Civil and Environmental Engineering (Supervisor: Dr. Knut Høyland)

Doctor of Philosophy in Ocean and Naval Architectural Engineering (2018) at Memorial University of Newfoundland (Supervisor: Dr. Ian Jordaan)

Master of Science in Experimental Particle Physics (2012) at Carleton University (Supervisor: Dr. Gerald Oakham)

Bachelor of Science (Honours) in Applied Mathematics and Physics (2009) at Memorial University of Newfoundland (Supervisor: Dr. Ivan Saika-Voivod)

Title of Project:

Application of electromagnetic induction sounding for UAV-based Sea ice thickness mapping

Research Project Description:

In partnership with the community-based ice-monitoring social enterprise called SmartICE, we will develop a new remote sensing platform that will mitigate the on-ice risks of community sea ice monitoring across Inuit Nunangat. The safety of SmartICE operators measuring sea ice thickness is especially at-risk during freeze-up and break-up seasons when the ice travel conditions are marginal. The use of an unmanned aerial vehicle (UAV or drone) to carry the ice thickness sensor, instead of a towed sled, would allow the operators to survey the marginal ice from a safe distance. The goal of this research project is to determine the feasibility of deploying from an UAV a multi-frequency electromagnetic induction sensor (the GEM-2 by Geophex Inc.) that was recently adapted for operational surface-based sea-ice thickness mapping by the applicant and SmartICE. Critically, the GEM-2 is physically smaller and significantly lighter than EM models currently being used, but still requires a custom-built UAV for deployment. This research will adapt existing GEM-2 algorithms for the noise and surveying conditions (e.g., height changes) of the UAV, as well as conduct field trials for instrument performance and data quality assessment.

Research areas

• Ice mechanics
• Ice safety in the Arctic
• Applications of machine learning

Publications

Knut V. Høyland, Torodd Nord, Joshua Turner, Vegard Hornnes, Ersegun Deniz Gedikli, Morten Bjerkås, Hayo Hendrikse, Tim Hammer, Gesa Ziemer, Timo Stange, Sören Ehlers, Moritz Braun, Tom Willems, Claas Fischer (2021) Fatigue damage from dynamic ice action -The FATICE project. 26th International Conference on Port and Ocean Engineering under Arctic Conditions, Moscow, Russia.

Joshua D. Turner, Knut V. Høyland, Vegard Hornnes, Ersegun D. Gedikli (2020) Comparison of in-situ measurements from the Norströmsgrund lighthouse to Copernicus reanalysis products. 25th IAHR International Symposium on Ice, Trondheim, Norway.

Vegard Hornnes, Knut V. Høyland, Joshua D. Turner, Ersegun D. Gedikli, Morten Bjerkås (2020) Combined distribution of ice thickness and speed based on local measurements at the Norströmsgrund lighthouse 2000-2003. 25th IAHR International Symposium on Ice, Trondheim, Norway.

Ersegun Deniz Gedikli, Morten Bjerkås, Knut Vilhelm Høyland, Vegard Hornnes, Joshua Turner (2020) On the ice and wind conditions in the northern part of the Gulf of Bothnia leading to ice-induced vibrations. 25th IAHR International Symposium on Ice, Trondheim, Norway.

Ian Jordaan, Brian O’Rourke, Joshua Turner, Perry Moore, and Freeman Ralph (2016) Estimation of Ice Loads using Mechanics of Ice Failure in Compression. Arctic Technology Conference, St. John’s, Newfoundland and Labrador, 24-26 October 2016. 7 pages. (PhD work)

Joshua D. Turner, Brian J. O’Rourke, Ian J. Jordaan and Rocky S. Taylor (2015) Surface Temperature Fluctuations in Ice Indentation Tests. ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering, Volume 8: Ian Jordaan Honoring Symposium on Ice Engineering, St. John’s, Newfoundland, Canada, May 31–June 5. (PhD work)

David Axen, Frederick Dallaire, Peter Krieger, Leonid Kurchaninov, Claude Leroy, Robert McPherson, F. Gerald Oakham, Koloina Randrianarivony, Adam Robichaud, Daniel Rodriguez, Yun-Ha Shin, Isabel Trigger and Joshua Turner*. A study of the variation in charge collection across the surface of a pCVD diamond detector, submitted to JINST Dec. 2013. 10 pages. *Lead author; authors listed alphabetically. (MSc work)

David Axen, Margret Fincke, Richard Keeler, Peter Krieger, Leonid Kurchaninov, Claude Leroy, Robert McPherson, Roy Langstaff, F. Gerald Oakham, Paul Poffenberger, John Rutherfoord, Mike Shupe, Vance Strickland, Isabel Trigger, and Joshua Turner (2013) The Mini-FCal option for ATLAS Forward Calorimetry. Technical report. (MSc work)

Turner, J. on behalf of the ATLAS Liquid Argon Calorimeter Group (2012) Upgrade Plans for ATLAS Forward Calorimetry for the HL-LHC, Physics Procedia. 37: 301-308 (MSc work).

David Axen, Frederick Dallaire, Claire David, Margret Fincke-Keeler, Leonid Kurchaninov, Richard Keeler, Peter Krieger, Claude Leroy, Robert McPherson, Gerald Oakham, Paul Poffenberger, Koloina Randrianarivony, Yun-Ha Shin, Isabel Trigger, and Joshua Turner (2011) Diamond Detector Irradiation Tests at TRIUMF. Journal of Instrumentation. 6 (5): 5011-5019 (MSc work).