Geological Science and Engineering

Geological Sciences and Geological Engineering
Geological Sciences and Geological Engineering

Callum Walter, Geology graduate student at Queen's University

Callum Walter

Ph.D Applied Geophysics

Office Bruce 544
Email callum.Walter@queensu.ca
Website https://www.linkedin.com/in/callum-walter-2917b1b9/
Thesis Topic Design, Integration and Application of UAV-Borne Aeromagnetic Surveys for Improved Target Characterization in Mineral Exploration
Supervisor Dr. Alexander Braun and Dr. Georgia Fotopoulos

Research Interests

  • Innovative Geophysical Technologies and Applications
  • Geophysical Surveying Design, Workflows, and Optimization
  • Integration and Optimization of Payload Systems
  • Remotely Piloted Aircraft System (RPAS) Operations Applied to Geophysical Surveys
  • Geophysical Data Acquisition, Processing, and Interpretation
  • Magnetometry, Gravimetry, and Potential Field Methods
  • Spectral and Wavelet Analysis

About Callum

Callum Walter completed a B.Sc.E. degree in geological engineering at Queen’s University with a focus on applied geophysics. In 2016, he started a M.A.Sc. at Queen’s University working with Dr. Alexander Braun and Dr. Georgia Fotopoulos in near surface geophysics and was upgraded to the PhD program in September 2017. Callum’s thesis investigates how to optimally design and integrate unmanned aerial vehicles (UAVs) with high-resolution magnetometers for UAV-borne aeromagnetic data collection in the mineral exploration industry. In addition, Callum completed a MITACs internship, working alongside Sumac Geomatics Inc. in Thunder Bay, Ontario, Canada. This collaboration resulted in the successful design and integration of a UAV-borne aeromagnetic system and a case study demonstrating the reliable collection of UAV-borne aeromagnetic magnetic data.

Awards

Academic Scholarships

2018 - Present      NSERC Postgraduate Scholarships-Doctoral Program Scholarship (PGS-D)

2020                      Carl Reinhardt Fellowship – Queen’s University

2020                      (Runner-up) GSC Pioneers Scholarship - Canadian Exploration Geophysical Society Foundation

2020                      Lucien Lacoste Scholarship - Society of Exploration Geophysicists

2020                      SEG Foundation Scholarship - Society of Exploration Geophysicists

2019                       Earl D. and Reba C. Griffin Memorial Scholarship - Society of Exploration Geophysicists

2019                       Misac Nabighian Scholarship - Society of Exploration Geophysicists

2018                       Lucien Lacoste Scholarship - Society of Exploration Geophysicists

2017                       NSERC Alexander Graham Bell Canada Graduate Scholarship - Master’s (CGS-M)

2017                      Ontario Graduate Scholarship (Withdrawn for NSERC Scholar.) – Ontario Government

2017                       Lucien Lacoste Scholarship - Society of Exploration Geophysicists

2017                       KEGS Ontario/SEG Scholarship - Canadian Exploration Geophysical Society Foundation

2017                       Canadian Society of Exploration Geophysicists Foundation Scholarship - Canadian Society of Exploration Geophysicists        

2017                       Queen’s Graduate Award – Queen’s University        

2016                      Ontario Graduate Scholarship - Ontario Government

2015                      Canadian Society of Exploration Geophysicists Foundation Scholarship - Canadian Society of Exploration Geophysicists

2015                       Joan M. Lund Memorial Award in Geophysics – Queen’s University 

Research Grants

2020                       Student Research Grant – Society of Economic Geologists Canada Foundation

2019                      Hugo Dummett Mineral Discovery Grant – Society of Economic Geologists Foundation

2018                      Student Research Grant – Society of Economic Geologists Canada Foundation

2016 - 2018         MITACS Accelerate Grant - MITACS

Best Paper/Teaching Awards

2019                      Best Technical Paper Award – Student Papers Competition, Unmanned Systems Canada

2019                       Best Student Paper Award – STRATUS Conference, Rochester Institute of Technology

2018                       Best Student Paper Award - Canadian Geophysical Union Annual Meeting

2016                       Hemmera Teaching Assistant Award – Queen’s University

2015                       Class of ’04 Teaching Assistant Award – Queen’s University

Publications

Peer-Reviewed Manuscripts:

  1. Walter C., Braun A., & Fotopoulos G. (2020) High-Resolution Unmanned Aerial Vehicle Aeromagnetic Surveys for Mineral Exploration Targets. Geophysical Prospecting, 68 (1), 334-349.
  2. Branson A., Walter C., Olivo G., Braun A., & Fotopoulos G. (2020): Geophysical exploration for podiform chromite occurrences in the Quesnel terrane, south-central British Columbia; Summary of Activities 2019: Geoscience BC, Report 2020-01, 13–22.
  3. Walter C., Braun A., & Fotopoulos G. (2019) Impact of 3-D attitude variations of a UAV magnetometry system on magnetic data quality. Geophysical Prospecting, 67 (2), 465-479.

Peer-Reviewed Conference Proceedings:

  1. Walter C., Braun A., & Fotopoulos G. Spectral Analysis of Magnetometer Swing in High-Resolution UAV-borne Aeromagnetic Surveys, Proceedings 3rd International Conference on Systems and Technologies for Remote Sensing Applications Through Unmanned Aerial Systems (STRATUS), IEEE Xplore, 25-27 February 2019, Rochester, NY, USA, p. 1 - 4.

Conference Proceedings:

  1. Walter C., Braun A., & Fotopoulos G. Augmenting Geological Field Mapping and Interpretation with Real-Time 3D Digital Outcrop Modeling. GeoConvention, May 2020, Calgary, Canada.
  2. Walter C., Braun A., & Fotopoulos G. Spectral Analysis of the Magnetic Field Generated by a Brushless Direct Current Electromagnetic Motor and the Implications for UAV-Borne Aeromagnetic Surveying. Unmanned Systems Canada, October 2019, Ottawa, Canada.
  3. Walter C., Braun A., & Fotopoulos G. High-Resolution UAV Magnetometry Surveys for Localizing Legacy/Abandoned Wells. GeoConvention, May 2019, Calgary, Canada.
  4. Walter C., Braun A., & Fotopoulos G. Enhanced Interpretative Ability of 3D UAV-borne magnetic Data. CGU (Canadian Geophysical Union) Annual Meeting, June 2018, Niagara Falls, Canada.
  5. Walter C., Braun A., & Fotopoulos G. Integrating a Potassium Vapour UAV Magnetometer with a Multi-Rotor UAV Towards Industry Standard Airborne 3D Magnetic Gradiometry. KEGS (Canadian Exploration Geophysics Society) Symposium, March 2017, Toronto, Canada.

Conference Presentations:

  1. Walter C.*, Braun A., & Fotopoulos G. Optimization of Unmanned Aerial Vehicle Aeromagnetic Surveys through Real Time Noise Characterization and Adaptive Sensing. AGU (American Geophysical Union) Virtual Fall Meeting, December 2020, Virtual Event.
  2. Walter C.*, Braun A., & Fotopoulos G.  Characterization and Mitigation of Unmanned Aerial Vehicle Electromagnetic Interference for Geophysical Surveying. Society of Exploration Geophysics - Summit on Drone Geophysics, 4-6 November 2020 Virtual Event.
  3. Walter C.*, Braun A., & Fotopoulos G. Augmenting Geological Field Mapping and Interpretation with Real-Time 3D Digital Outcrop Modeling. GeoConvention, September 2020, Virtual Event.
  4. Walter C.*, Braun A., & Fotopoulos G. Compensation of High-Resolution Magnetometer Swing using an Inertial Measurement Unit in UAV-borne Aeromagnetic Surveys for Natural Resource Exploration. EGU (European Geophysical Union) General Assembly, May 2020, Vienna, Austria.
  5. Branson A.*, Walter C., Olivo G., Braun A. & Fotopoulos G. Exploration for Podiform Chromite in the Quesnel Terrane, British Columbia. PDAC-SEG Student Minerals Colloquium, March 2020, Toronto, Canada.
  6. Walter C.*, Braun A., & Fotopoulos G. Characterizing High-Resolution Magnetometer Swing with an Inertial Measurement Unit in UAV-borne Total Magnetic Intensity Surveys. PDAC-SEG Student Minerals Colloquium, March 2020, Toronto, Canada.
  7. Walter C.*, Braun A., & Fotopoulos G. Characterizing and Mitigating Platform Induced Electromagnetic Interference in High-Resolution UAV-Borne Aeromagnetic Surveys. AGU (American Geophysical Union) Fall Meeting, December 2019, San Francisco, United States.
  8. Walter C.*, Braun A., & Fotopoulos G. Unmanned Aerial Vehicle Aeromagnetic Surveys: Innovation Leading to Exploration Success. KEGS Foundation Mini Symposium, December 2019, Toronto, Canada.
  9. Walter C.*, Braun A., & Fotopoulos G. Spectral Analysis of the Magnetic Field Generated by a Brushless Direct Current Electromagnetic Motor and the Implications for UAV-Borne Aeromagnetic Surveying. Unmanned Systems Canada. October 2019, Ottawa, Canada.
  10. Walter C.*, Braun A., & Fotopoulos G. Acquisition, Analysis and Interpretation of a High-Resolution UAV-borne Aeromagnetic Survey for Mineral Exploration. 27th IUGG General Assembly, July 2019, Montreal, Canada.
  11. Walter C.*, Braun A., & Fotopoulos G. High-Resolution UAV Magnetometry Surveys for Localizing Legacy/Abandoned Wells. GeoConvention, May 2019, Calgary, Canada.
  12. Walter C.*, Braun A., & Fotopoulos G. UAV-borne Aeromagnetic Survey Delineates Structural Controls in Greenstone Gold Exploration. PDAC-SEG Student Minerals Colloquium, March 2019, Toronto, Canada.
  13. Walter C.*, Braun A., & Fotopoulos G. Spectral Analysis of Magnetometer Swing in High-Resolution UAV-borne Aeromagnetic Surveys. IEEE - STRATUS (Systems and Technologies for Remote Sensing Applications Through Unmanned Aerial Systems), February 2019, Rochester, United States.
  14. Walter C.* & Domney T.* Multi-rotor UAV Magnetometry achieves industry standard data quality for mineral exploration. Commercial UAV EXPO Americas, October 2018, Las Vegas, United States.
  15. Walter C.*, Braun A., & Fotopoulos G. Enhanced Interpretative Ability of 3D UAV-borne Magnetic Data. CGU (Canadian Geophysical Union) Annual Meeting, June 2018, Niagara Falls, Canada.
  16. Walter C.*, Braun A., & Fotopoulos G. Quantifying the In-Flight Yaw, Pitch, and Roll of a Semi-Rigidly Mounted Potassium Vapour Magnetometer Suspended Under a Heavy-Lift Multi-Rotor UAV and its Impact on Data Quality. AGU (American Geophysical Union) Fall Meeting, December 2017, New Orleans, United States of America.
  17. Walter C., Braun A.*, & Fotopoulos G. Orientation Considerations for Multi-Rotor UAV Magnetometry Surveys. CGU (Canadian Geophysical Union) Annual Meeting, June 2017, Vancouver, Canada.
  18. Walter C.*, Braun A., & Fotopoulos G. Integrating a Potassium Vapour UAV Magnetometer with a Multi-Rotor UAV Towards Industry Standard Airborne 3D Magnetic Gradiometry. 2017 KEGS (Canadian Exploration Geophysics Society) Symposium, March 2017. Toronto, Canada.
  19. Walter C., Braun A.*, & Parvar K. Towards Industry Standard High-Resolution UAV Magnetometry Surveys. AGU (American Geophysical Union) Fall Meeting, December 2016, San Francisco, United States of America.
  20. Parvar K., Walter C., Braun A.*, & Burns M. 3D UAV Magnetic Gradiometry Survey for Chromite Exploration Using an Alkali Vapor Magnetometer. AGU (American Geophysical Union) Fall Meeting, December 2016, San Francisco, United States.

 


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