M.R. Johnson, B.M. Conrad, S.E. Wilde, D.R. Tyner (2025) Leveraging Aerial and Ground-based Insights to Produce Reconciled, Measurement-Based Methane Inventories, American Geophysical Union (AGU) Fall Meeting, GC21D-01, New Orleans, LA, December 14–18.
S.A. Festa-Bianchet, M. Mohammadikharkeshi, A.D. Tanner, B.M. Crosland, G.A. Kopp, M.R. Johnson (2025) Controlled Testing and Field Demonstration of a UAV-based Technique for Quantifying Efficiencies and Methane Emissions of Gas Flares, American Geophysical Union (AGU) Fall Meeting, GC21D-05, New Orleans, LA, December 14–18.
I. Cerquozzi, M.R. Johnson (2025) Simulating Wind-Driven Methane Dispersion Over Landfill Terrain: A CFD Approach with UAV-Based Detection Integration, American Geophysical Union (AGU) Fall Meeting, GC23M-0854, New Orleans, LA, December 14–18.
M.R. Johnson, N. Calderón-Cangrejo, S.A. Festa-Bianchet, S.E. Wilde, B.M. Conrad, D.R. Tyner (2025) A First Measurement-Based Oil and Gas Sector Methane Inventory for Colombia, American Geophysical Union (AGU) Fall Meeting, A11G-01, New Orleans, LA, December 14–18.
M.R. Johnson, D.R. Tyner, B.M. Conrad (2025) Measurement-based Inventories of Canada’s Upstream Oil and Gas Methane Emissions: Tracking Year-over-year Trends, CanCH4 Symposium, Ottawa, May 7–8.
S.A. Festa-Bianchet, I. Cerquozzi, C. Van de Ven, M.R. Johnson (2025) Monitoring Landfill Methane: A Comparison of Drone and Surface Measurement Techniques, CanCH4 Symposium, Ottawa, May 7–8.
S.A. Festa-Bianchet, M. Mohammadikharkeshi, A.D. Tanner, G.A. Kopp, M.R. Johnson (2025) In Search of a Potential Method to Measure Flare Combustion Efficiency using Drones – First Field Results, CanCH4 Symposium, Ottawa, May 7–8.
D.R. Tyner, N. Calderon-Cangrejo, S.A. Festa-Bianchet, S.E. Wilde, S. Sakthivel, E. Killeen, M.R. Johnson (2025) Occurrence Rates and Reoccurrence Rates of Unlit Flares in Western Canada, CanCH4 Symposium, Ottawa, May 7–8.
S.E. Wilde, D.R. Tyner, M.R. Johnson (2025) Real-World Assessment of Methane Leaks Detection and Repair (LDAR) Effectiveness, CanCH4 Symposium, Ottawa, May 7–8.
S.E. Wilde, D.R. Tyner, B.M. Conrad, M.R. Johnson (2025) A Demonstrated Reconciliation of Top-Down and Bottom-Up Methane Measurements to Derive Verified Emission Intensities, European Geophysical Union General Assembly, Vienna, Austria, April 27–May 2.
M.R. Johnson, S.E. Wilde, D.R. Tyner, B.M. Conrad (2025) Using Repeated Aerial Methane Measurements to Assess Inventory Protocols and Track Year-over-year Trends in Emissions, European Geophysical Union General Assembly, Vienna, Austria, April 27–May 2.
N. Calderon-Cangrejo, S.A. Festa-Bianchet, B.M. Conrad, D.R. Tyner, S.E. Wilde, M.R. Johnson (2025) Progress Toward a First Measurement-Based Oil and Gas Sector Methane Inventory for Colombia, European Geophysical Union General Assembly, Vienna, Austria, April 27–May 2.
S.A. Festa-Bianchet, I. Cerquozzi, C. Van de Ven, M.R. Johnson (2025) Comparison of Three Different Landfill Surface Methane Mapping Techniques: Lessons Learned and Policy Implications, European Geophysical Union General Assembly, Vienna, Austria, April 27–May 2.
M.R. Johnson, D.R. Tyner, B.M. Conrad (2024) Using Measurement-Based Inventories to Track Year-over-year Trends in Methane Emissions, American Geophysical Union (AGU) Fall Meeting, Washington, DC, Dec. 9–13.
S.E. Wilde, D.R. Tyner, B.M. Conrad, M.R. Johnson (2024) Development and Implementation of a Novel Measurement, Reporting, and Verification (MRV) Protocol to Reduce Oil and Gas Methane Emissions, American Geophysical Union (AGU) Fall Meeting, Washington, DC, Dec. 9–13.
D.R. Tyner, N. Calderón-Cangrejo, S.A. Festa-Bianchet, S.E. Wilde, S. Sakthivel, E. Killeen, M.R. Johnson (2024) The Prevalence of Unlit Flares and Combustors at Upstream Oil and Gas Sites in Western Canada, American Geophysical Union (AGU) Fall Meeting, Washington, DC, Dec. 9–13.
M. Mohammadikharkeshi, D.C. Burtt, A.D. Tanner, B.M. Crosland, G.A. Kopp, M.R. Johnson (2024) A Parametric Study on Combustion Efficiency and Methane Emission Rates of Flares in Crosswind, American Geophysical Union (AGU) Fall Meeting, Washington, DC, Dec. 9–13.
S.A. Festa-Bianchet, I. Cerquozzi, S. Bhattarai, I. Hearne, C. VanDeVen, M.R. Johnson (2024) Monitoring Landfill Methane: A Comparison of Drone and Surface Measurement Techniques, American Geophysical Union (AGU) Fall Meeting, Washington, DC, Dec. 9–13.
N. Calderón-Cangrejo, S.A. Festa-Bianchet, B.M. Conrad, D.R. Tyner, S.E. Wilde, M.R. Johnson (2024) Creating a First-Ever Measurement-Based Methane Inventory for Upstream Oil and Gas Production in Colombia, American Geophysical Union (AGU) Fall Meeting, Washington, DC, Dec. 9–13.
S.E. Wilde, D.R. Tyner, B.M. Conrad, M.R. Johnson (2024) A Real-World Comparison of the Effectiveness of Regulated OGI Leak Detection and Repair (LDAR) Surveys and Aerial Measurements, Air & Waste Management Association 117th Annual Conference & Exhibition, Calgary, AB, June 24–27.
N. Calderón-Cangrejo, S.A. Festa-Bianchet, B.M. Conrad, D.R. Tyner, S.E. Wilde, M.R. Johnson (2024) Creating a First-Ever Measurement-Based Methane Inventory for Upstream Oil and Gas Production in Colombia, Air & Waste Management Association 117th Annual Conference & Exhibition, Calgary, AB, June 24–27.
S.A. Festa-Bianchet, M. Mohammadikharkeshi, A.D. Tanner, B.M. Crosland, G.A. Kopp, M.R. Johnson (2024) Development of a UAV-Based Methodology for Flare Combustion Efficiency Measurements, Air & Waste Management Association 117th Annual Conference & Exhibition, Calgary, AB, June 24–27.
M. Mohammadikharkeshi, S.A. Festa-Bianchet, D.R. Tyner, M.R. Johnson (2024) In-Situ Measurements of Methane Emissions in Combustion Exhausts at Oil and Gas Facilities, Air & Waste Management Association 117th Annual Conference & Exhibition, Calgary, AB, June 24–27.
A.D. Tanner, M. Mohammadikharkeshi, B.M. Crosland, G.A. Kopp, M.R. Johnson (2024) Measurements of Methane, Soot, and NOx from Flares Subjected to Crosswind, Air & Waste Management Association 117th Annual Conference & Exhibition, Calgary, AB, June 24–27.
S.E. Wilde, B.M. Conrad, D.R. Tyner, M.R. Johnson (2024) Real-World Comparison of the Effectiveness of Regulated OGI Leak Detection and Repair (LDAR) Surveys and Aerial Measurements, CanCH4 Symposium: Methane by the Numbers, Ottawa, ON, May 13-14.
E.J. McCole, B.M. Conrad, D.R. Tyner, M.R. Johnson (2024) Methane Mitigation Techno-Economics: Measurement-Based Insights for Saskatchewan’s O&G Sector, CanCH4 Symposium: Methane by the Numbers, Ottawa, ON, May 13-14.
B.M. Conrad, M.R. Johnson (2024) Effects of False Positive Rates and Spatially Correlated Noise on Probabilities of Detection for Satellite-Based Methane Detection of Point Sources, CanCH4 Symposium: Methane by the Numbers, Ottawa, ON, May 13-14.
S.A. Festa-Bianchet, M. Mohammadikharkeshi, A.D. Tanner, G.A. Kopp, D.R. Tyner, M.R. Johnson (2024) Flare Combustion Efficiency Measurements by Drone, CanCH4 Symposium: Methane by the Numbers, Ottawa, ON, May 13-14.
S.A. Festa-Bianchet, M. Mohammadikharkeshi, D.R. Tyner, M.R. Johnson (2024) Catalytic Heaters: A Seasonal yet Significant Source of Methane, CanCH4 Symposium: Methane by the Numbers, Ottawa, ON, May 13-14.
S.A. Festa-Bianchet, Z.R. Milani, D.R. Tyner, M.R. Johnson (2024) Methane Venting from Uncontrolled Production Storage Tanks at Conventional Oil Wells, CanCH4 Symposium: Methane by the Numbers, Ottawa, ON, May 13-14.
A.D. Tanner, M. Mohammadikharkeshi, B.M. Crosland, D.V. Hiscott, G.A. Kopp, M.R. Johnson (2024) The Effect of Crosswind on Soot Emissions from Turbulent Buoyant Non-Premixed Flames, Combustion Institute, Canadian Section (CICS) Spring Technical Meeting, Kingston, ON, May 13-16.
S.E. Wilde, D.R. Tyner, B.M. Conrad, M.R. Johnson (2024) A Comparison of the Effectiveness of Regulated OGI Leak Detection and Repair (LDAR) Surveys and Aerial Measurements in the Real-World, EGU General Assembly, Vienna, Austria, April 14–19 (EGU24-6658).
N. Calderon-Cangrejo, S.A. Festa-Bianchet, B.M. Conrad, D.R. Tyner, S.E. Wilde, M.R. Johnson (2024) Combining Aerial and Ground Surveys to Quantify Oil and Gas Sector Methane Emissions in Colombia, EGU General Assembly, Vienna, Austria, April 14–19 (EGU24-20581).
S.A. Festa-Bianchet, M. Mohammadikharkeshi, A.D. Tanner, G.A. Kopp, M.R. Johnson (2024) Evaluation of a UAV-Based Methodology for Measuring Flare Combustion Efficiency, EGU General Assembly, Vienna, Austria, April 14–19 (EGU24-14031).
M.R. Johnson, B.M. Conrad, D.R. Tyner (2023) Using Source-Resolved Aerial Data to Create Measurement-Based Methane Inventories and Quantify Emission Intensities, American Geophysical Union (AGU) Fall Meeting, San Francisco, CA, Dec. 11–15.
B.M. Conrad, N. Calderón-Cangrejo, D.R. Tyner, M.R. Johnson (2023) The Problem with Basing Methane Mitigation Policy on Relative Reduction Targets: Insights from Aerial Surveys of Heavy Oil Sites in Western Canada, American Geophysical Union (AGU) Fall Meeting, San Francisco, CA, Dec. 11–15.
E.J. McCole, D.R. Tyner, B.M. Conrad, M.R. Johnson (2023) A techno-economic analysis of abatement opportunities for measured-sources of oil and gas sector methane emissions in Saskatchewan, American Geophysical Union (AGU) Fall Meeting, San Francisco, CA, Dec. 11–15.
S.A. Festa-Bianchet, M. Mohammadikharkeshi, M.R. Johnson (2023) In-Situ Measurements of Methane Emissions in Combustion Exhausts at Oil and Gas Facilities, American Geophysical Union (AGU) Fall Meeting, San Francisco, CA, Dec. 11–15.
A.D. Tanner, M. Mohammadikharkeshi, B.M. Crosland, G.A. Kopp, M.R. Johnson (2023) Emission Rates of Methane, Soot, and NOx from Gas Flares Subjected to Crosswind, American Geophysical Union (AGU) Fall Meeting, San Francisco, CA, Dec. 11–15.
M.R. Johnson, B.M. Conrad, D.R. Tyner (2023) National-Scale Measurement-Based Oil and Gas Methane Census, Air and Waste Management Association Air Quality Measurement Methods and Technology Conference, Durham, NC, Nov 14–16.
A.D. Tanner, M. Mohammadikharkeshi, B.M. Crosland, G.A. Kopp, M.R. Johnson (2023) Measurements of Methane, Soot, and NOx from Flares Subjected to Crosswind, Air and Waste Management Association Air Quality Measurement Methods and Technology Conference, Durham, NC, Nov 14–16.
S.A. Festa-Bianchet, M. Mohammadikharkeshi, A.D. Tanner, G.A. Kopp, M.R. Johnson (2023) Evaluation of the Potential Accuracy of a UAV-Based Methodology for Flare Combustion Efficiency, Air and Waste Management Association Air Quality Measurement Methods and Technology Conference, Durham, NC, Nov 14–16.
M.J. Thorpe, B.M. Conrad, D.R. Tyner, D. Altamura, C. Dudiak, M.R. Johnson (2023) Probabilities of Detection for Aerial Survey of Oil and Gas Sector Methane Emissions, Air and Waste Management Association Air Quality Measurement Methods and Technology Conference, Durham, NC, Nov 14–16.
S.A. Festa-Bianchet, M.R. Johnson (2023) Methane Venting from Production Storage Tanks: Temporal Variability and Implications for Measurement, Air and Waste Management Association Air Quality Measurement Methods and Technology Conference, Durham, NC, Nov 14–16.
A.D. Tanner, M. Mohammadikharkeshi, M.R. Johnson (2023) Soot emissions from turbulent buoyant non-premixed flames, Combustion Institute Canadian Section (CICS) Spring Technical Meeting, Edmonton, AB, May 15–18.
M. Mohammadikharkeshi, A.D. Tanner, D.J. Corbin, P. Mehr, M.R. Johnson (2023) Emissions of NOx from Flare Flames: New Data and Comparison to Literature, Combustion Institute Canadian Section (CICS) Spring Technical Meeting, Edmonton, AB, May 15–18.
M.R. Johnson, D.R. Tyner, B.M. Conrad (2022) A Measurement-Based Methane Inventory for Conventional Upstream Oil & Gas Production in Canada, American Geophysical Union (AGU) 2022 Fall Meeting, Chicago, IL, Dec. 11–15 (A42L-01)
S.A. Festa-Bianchet, D.R. Tyner, M.R. Johnson (2022) Multi-Scale Measurements of Methane Venting from CHOPS Wells and Mitigation Implications, American Geophysical Union (AGU) 2022 Fall Meeting, Chicago, IL, Dec. 11–15 (A45R-2115)
M.R. Johnson, D.R. Tyner, E.J. McCole, B.M. Conrad, Z.R. Milani, S.P. Seymour, C.S. Roth, D.C. Burtt, S.A. Festa-Bianchet, M. Mohammadikharkeshi, F. Kirby, A.J. Szekeres (2021) Application of Airborne LiDAR Measurements to Create Measurement-Based Methane Inventories in the Canadian Upstream Oil & Gas Sector, American Geophysical Union (AGU) 2021 Fall Meeting, New Orleans, LA, Dec. 13–17 (GC24D-03)
S.A. Festa-Bianchet, S.P. Seymour, D.R. Tyner, M.R. Johnson (2021) Quantification of Unsteady Methane Flux for Oil and Gas Sector Vent Sources using a Novel Optical Sensor and Comparison with Aerial Measurements American Geophysical Union (AGU) 2021 Fall Meeting, New Orleans, LA, Dec. 13–17 (GC25N-0806)
B.M. Conrad, M.R. Johnson (2021) Satellite Observation of Methane Point Sources: The Effect of Spatially Correlated Noise on Limits of Detection and Quantification, American Geophysical Union (AGU) 2021 Fall Meeting, New Orleans, LA, Dec. 13–17 (A55R-1668)
C.S. Roth, M.R. Johnson (2021) The Impact of Entrained Sodium Solutions on Gas Flare Emissions, American Geophysical Union (AGU) 2021 Fall Meeting, New Orleans, LA, Dec. 13–17 (A25G-1758)
C.S. Roth, Z.R. Milani, M.R. Johnson (2020) Emissions of Lab-Scale Flares with Entrained Salt Aerosols, American Geophysical Union (AGU) 2020 Fall Meeting, Virtual, Dec. 1–17.
Z.R. Milani, C.S. Roth, M.R. Johnson (2020) Identifying Components of Brackish Water in Spectral Emissions of Flare Flames in North Dakota, Saskatchewan, and Ecuador, American Geophysical Union (AGU) 2020 Fall Meeting, Virtual, Dec. 1–17
C.S. Roth, M.R. Johnson (2020) Effect of Entrained Salt Aerosols on Lab-Scale Flare Emissions, Petroleum Technology Alliance of Canada (PTAC) 2020 Methane Emissions Reduction Forum, Virtual, Nov. 4-5
B.M. Conrad, M.R. Johnson (2019) Towards Standardization of the Sky-LOSA Measurement of Soot Emissions from Gas Flaring: Consideration of Multiple Scattering Effects and General Uncertainty Analysis, American Geophysical Union (AGU) 2019 Fall Meeting, San Francisco, CA, Dec. 9–13.
S.P. Seymour, M.R. Johnson (2019) Time-Resolved Species Correlations in Turbulent Combustion Plumes and Considerations for Field Measurements, American Geophysical Union (AGU) 2019 Fall Meeting, San Francisco, CA, Dec. 9–13.
Z.R. Milani, C.S. Roth, M.R. Johnson (2019) Remote Detection of Sodium Signatures as an Indicator of Liquid Carry-Over into Flare Flames in the Bakken Oil Production Region, American Geophysical Union (AGU) 2019 Fall Meeting, San Francisco, CA, Dec. 9–13.
D.C. Burtt, A.M. Jefferson, M.R. Johnson (2019) Measurement of Volatile Organic Compound Emissions from a Vertical Flare, Petroleum Technology Alliance of Canada (PTAC) 2019 Methane Emissions Reduction Forum, Banff, Alberta, Nov. 26–27.
S.P. Seymour, M.R. Johnson (2019) Species Correlations in Flare Plumes Implications for Field Sampling, Petroleum Technology Alliance of Canada (PTAC) 2019 Methane Emissions Reduction Forum, Banff, Alberta, Nov. 26–27.
Z.R. Milani, A.M. Jefferson, C.S. Roth, M.R. Johnson (2019) Remote Detection of Sodium Signatures as an Indicator of Liquid Carry-Over into Flare Flames in the Bakken Oil Production Region, Petroleum Technology Alliance of Canada (PTAC) 2019 Methane Emissions Reduction Forum, Banff, Alberta, Nov. 26–27.
P. Mehr, M.R. Johnson (2019) Predicting Black Carbon Emissions from Gas Flares in the Oil and Gas Sector: Experimental to Uncouple Aerodynamic and Chemical Effects, Petroleum Technology Alliance of Canada (PTAC) 2019 Methane Emissions Reduction Forum, Banff, Alberta, Nov. 26–27.
N.T. Brooker, B.M. Crosland, M.R. Johnson (2019) Benzene Destruction Removal Efficiency and Black Carbon Yield in a Lab-Scale Flare, Petroleum Technology Alliance of Canada (PTAC) 2019 Methane Emissions Reduction Forum, Banff, Alberta, Nov. 26–27.
T.A. Sipkens, U. Trivanovic, A. Baldelli, S. N. Rogak, M. Kazemimanesh, O. W. Bello, A. Naseri, L. Kostiuk, J. S. Olfert, A. M. Jefferson, M. R. Johnson, D.J. Corbin (2019) Investigating the 2D distribution of mass and mobility diameter of flare-generated particles, American Association for Aerosol Research 37th Annual Conference, Portland, OR, USA. Oct. 14-18.
T.A. Sipkens, M. Kazemimanesh, A.M. Jefferson, M.R. Johnson, J.S. Olfert, S.N. Rogak (2019) Investigating the distribution of mass and mobility diameter of lab-scale, flare-generated soot using tandem DMA-CPMA measurements, American Association for Aerosol Research 37th Annual Conference, Portland, USA, Oct. 14-18.
U. Trivanovic, A. Baldelli, M. Kazemimanesh, B.M. Conrad, A.M. Jefferson, D.J. Corbin, M.R. Johnson, J.S. Olfert, S.N. Rogak (2019) Effects of fuel mixture and inorganic salts on the morphological and optical properties of soot from gas flares, European Aerosol Conference, Gothenburg, Sweden, Aug 25-30.
S.P. Seymour, M.R. Johnson (2019). Measuring H2O and Black Carbon Correlation in Turbulent Flare Plumes and Implications for Field Measurement Technologies, Combustion Institute Canadian Section (CICS) Spring Technical Meeting, Kelowna, BC, May 13-16.
N.T. Brooker, B.M. Crosland, M.R. Johnson (2019). Quantifying Benzene Destruction Efficiency in Lab-Scale Flares, Combustion Institute Canadian Section (CICS) Spring Technical Meeting, Kelowna, BC, May 13-16.
B.M. Conrad, M.R. Johnson (2019) Spectral Mass Absorption Cross-Section of Soot from Gas Flares: Evidence of Variability and Development of a Phenomenological Model, Combustion Institute Canadian Section (CICS) Spring Technical Meeting, Kelowna, BC, May 13-16.
J.R. Armitage, D.J. Corbin, A.M. Jefferson, G.A. Kopp, M.R. Johnson, (2019). Preliminary Investigation into the Effects of Turbulent Crosswinds on Flaring Performance, Combustion Institute Canadian Section (CICS) Spring Technical Meeting, Kelowna, BC, May 13-16.
Z.R. Milani, A.M. Jefferson, M.R. Johnson, (2019). Detection of Sodium Signatures as an Indicator of Liquid Carry-Over into Flare Flames in North Dakota, Combustion Institute Canadian Section (CICS) Spring Technical Meeting, Kelowna, BC, May 13-16.
P. Mehr, B.M. Conrad, A.M. Jefferson, D.J. Corbin, M.R. Johnson (2019) Improving Reporting of Flare Black Carbon Emissions in Canada, Combustion Institute Canadian Section (CICS) Spring Technical Meeting, Kelowna, BC, May 13-16.
M.R. Johnson, P. Mehr, D.J. Corbin, A.M. Jefferson, B.M. Conrad (2019) Measurements of Black Carbon Yield from Gas Flaring and Development of a Predictive Emission Factor Model, Annual General Meeting of the European Geophysical Union, Vienna, Austria, April 7-12.
B.M. Conrad, M.R. Johnson (2019) Mass Absorption Cross‐Section of Fresh Flare‐Generated Black Carbon: Sensitivity to Gas Composition and Flaring Conditions and Development of a Predictive Phenomenological Model, Annual General Meeting of the European Geophysical Union, Vienna, Austria, April 7-12.
D.R. Tyner, M.R. Johnson (2018) Methane Inventory Trends in the Canadian Oil and Gas Sector: Are Reported Venting Trends Reliable?, American Geophysical Union (AGU) 2018 Fall Meeting, Washington D.C., Dec. 10–14.
B.M. Conrad, A.M. Jefferson, B.M. Crosland, M.R. Johnson (2018) Flare-Generated Black Carbon: Measurements of Mass Absorption Cross-section and Implications of Observed Sensitivity to Flaring Conditions, American Geophysical Union (AGU) 2018 Fall Meeting, Washington D.C., Dec. 10–14.
J. R. Armitage, A.M. Jefferson, M.R. Johnson (2018) A Wind Tunnel Methodology to Measure Efficiency of Flares Subject to Turbulent Crosswinds, Petroleum Technology Alliance of Canada (PTAC) 2018 Methane Emissions Reduction Forum, Banff, Alberta, November 27–28.
K. Babaee, S. Rogak, P. Mehr, M.R. Johnson (2018) Quantifying Sampling Losses during Aerosol Measurements of Flare Generated Particulate Matter based on Effective Density, Petroleum Technology Alliance of Canada (PTAC) 2018 Methane Emissions Reduction Forum, Banff, Alberta, November 27–28.
N.T. Brooker, B.M. Crosland, M.R. Johnson (2018) Measurements of Benzene Destruction Efficiency In a Lab-Scale Flare, Petroleum Technology Alliance of Canada (PTAC) 2018 Methane Emissions Reduction Forum, Banff, Alberta, November 27–28.
B.M Conrad, M.R. Johnson (2018) Light Absorption by Flare-Generated Black Carbon: Measurement of Mass Absorption Cross-Section, Petroleum Technology Alliance of Canada (PTAC) 2018 Methane Emissions Reduction Forum, Banff, Alberta, November 27–28.
Z.R. Milani, A.M. Jefferson, M.R. Johnson (2018) Detection of Sodium Signatures in North Dakota Flare Flames, Petroleum Technology Alliance of Canada (PTAC) 2018 Methane Emissions Reduction Forum, Banff, Alberta, November 27–28.
S.P. Seymour, M.R. Johnson (2018) Measurement of Species Correlations in Flare Plumes-Implications for Field Sampling, Petroleum Technology Alliance of Canada (PTAC) 2018 Methane Emissions Reduction Forum, Banff, Alberta, November 27–28.
D.R. Tyner, B.M. Conrad, M.R. Johnson (2018) A Black Carbon Inventory for Gas Flaring in Alberta’s Upstream Oil and Gas Sector, Petroleum Technology Alliance of Canada (PTAC) 2018 Methane Emissions Reduction Forum, Banff, Alberta, November 27–28.
S.P. Seymour, M.R. Johnson (2018) Measuring Correlations of Line-of-Sight H2O Vapour and Soot Through Flare Plumes. Field Laser Applications in Industry and Research (FLAIR), Assisi, Italy, Sept 10-14.
B.M. Conrad, J.N. Thornock, and M.R. Johnson (2018) Multiple-Scattering Effects in Sky-LOSA Measurements of Soot Emission Rates from Gas Flares, Combustion Institute Canadian Section (CICS) Spring Technical Meeting, Toronto, ON. May 14-17.
S.P. Seymour, M.R. Johnson (2018) Development of a Simultaneous H2O Concentration and Soot Volume Fraction Measurement System in Turbulent Flare Plumes to Inspect Gas and Particle Species Correlation, Combustion Institute Canadian Section (CICS) Spring Technical Meeting, Toronto, ON. May 14-17.
N. Brooker, B.M. Crosland, M.R. Johnson (2018) Measurements of Benzene Destruction Efficiency in a Lab-Scale Flare, Combustion Institute Canadian Section (CICS) Spring Technical Meeting, Toronto, On. May 14-17.
J.R. Armitage, M.R. Johnson, D.J. Corbin, A.M. Jefferson (2018) Calculating Flare Carbon-Conversion Efficiency and Species Emission Rates in a Closed-Loop Wind Tunnel, Combustion Institute Canadian Section (CICS) Spring Technical Meeting, Toronto, ON. May 14-17.
N.J. Hakala, M.R. Johnson (2018) Design of A Rapid Injection Thermocouple System for Measuring Temperature in Buoyant Turbulent Non-Premixed Flames, Combustion Institute Canadian Section (CICS) Spring Technical Meeting, Toronto, ON. May 14-17.
B.M. Conrad, B. M. Crosland, A.M. Jefferson, and M.R. Johnson (2018) Measurements of Mass Absorption Cross-Section of Flare-Generated Black Carbon and Climatic Implications, Annual General Meeting of the European Geophysical Union, Vienna, Austria, April 8-13, 2018.
D.R. Tyner, B.M. Conrad, and M.R. Johnson (2018) An Emissions Inventory of Black Carbon from Gas Flaring in Alberta, Canada’s Upstream Oil and Gas Sector, Annual General Meeting of the European Geophysical Union, Vienna, Austria, April 8-13, 2018.
A.M. Jefferson, M.R. Johnson (2018) Measurements of Combustion Emissions of Lab-Scale Flares with Injected Aqueous Sodium Chloride Aerosols, Annual General Meeting of the European Geophysical Union, Vienna, Austria, April 8-13, 2018.
M.R. Johnson (2017) Airborne vs. Inventory Measurements of Methane Emissions in the Alberta Upstream Oil and Gas Sector, American Geophysical Union (AGU) Fall Meeting, New Orleans, Louisiana, December 11-15.
A.M. Jefferson, M.R. Johnson (2017) Effects of sodium chloride solutions on lab-scale flares, Petroleum Technology Alliance of Canada (PTAC) 2017 Canadian GHG Emission Reductions Forum, Calgary, AB., Oct., 23.
J.R. Armitage, D.J. Corbin, A.M. Jefferson, M.R. Johnson (2017) Calculating flare carbon-conversion efficiency and species emission rates in a closed-loop wind tunnel, Petroleum Technology Alliance of Canada (PTAC) 2017 Canadian GHG Emission Reductions Forum, Calgary, AB., Oct., 23.
C.A. Brereton, L.J. Campbell, M.R. Johnson (2017) Fugitive emission source characterization using downstream measurements, Petroleum Technology Alliance of Canada (PTAC) 2017 Canadian GHG Emission Reductions Forum, Calgary, AB., Oct., 23.
D.R. Tyner, M.R. Johnson (2017) Mitigation of methane at oil and heavy oil production sites in Alberta: A techno-economic analysis of industry reported data, Petroleum Technology Alliance of Canada (PTAC) 2017 Canadian GHG Emission Reductions Forum, Calgary, AB., Oct., 23.
B.M. Conrad, M.R. Johnson (2017) Field measurements of black carbon emissions from gas flaring using sky-LOSA, Petroleum Technology Alliance of Canada (PTAC) 2017 Canadian GHG Emission Reductions Forum, Calgary, AB., Oct., 23.
N.T. Brooker, B.M. Crosland, M.R. Johnson (2017) Measurements of benzene destruction efficiency in a lab-scale flare, Petroleum Technology Alliance of Canada (PTAC) 2017 Canadian GHG Emission Reductions Forum, Calgary, AB., Oct., 23.
B.M. Conrad, M.R. Johnson (2017) Sky-LOSA measurement of black carbon emissions from gas flaring, 36th Annual Conference of the American Association for Aerosol Research, (Poster # 8.IM.15), Raleigh, NC, October 16-20.
A.M. Jefferson, M.R. Johnson (2017) Exploratory Experiments of Effects of Water, Hydrochloric Acid, and Sodium Chloride Solutions on Lab-Scale Flare, Combustion Institute Canadian Section (CICS) Spring Technical Meeting, Montreal, QC. May 15-18.
N.T. Brooker, B.M. Crosland, M.R. Johnson (2017) Measurements of Benzene Destruction Efficiency in a Lab-Scale Flare, Combustion Institute Canadian Section (CICS) Spring Technical Meeting, Montreal, QC. May 15-18.
C.A. Brereton, M.R. Johnson, L.J. Campbell (2017) Computational time improvements of pollutant release characterization using pre-computed advection-diffusion adjoint releases, Air & Waste Management Association 110th Annual Conference (Paper #: 264558), Pittsburgh, PA, June 5-8.
B.M. Conrad, D.J. Corbin, A.M. Jefferson, M.R. Johnson (2016) Sky-LOSA Measurements of Black Carbon Emission Factors from Associated Gas Flaring in Ecuador, Air & Waste Management Association 109th Annual Conference(Paper #: 1094), New Orleans, LA, June 20-23.
A.M. Jefferson, D.J. Corbin, M.R. Johnson (2016) Sky-LOSA Experimental Results and Scaling of Emissions of Nitrogen Oxides from Lab-Scale Turbulent Jet Flames Methane, Propane, and Natural Gas Flames, Air & Waste Management Association 109th Annual Conference(Paper #: 912), New Orleans, LA, June 20-23.
C.A. Brereton, M.R. Johnson, L.J. Campbell (2016) Sky-LOSA Computational cost of adjoint-based pollutant source characterization in OpenFOAM, Air & Waste Management Association 109th Annual Conference(Paper #: 1084), New Orleans, LA, June 20-23.
B.M. Conrad, D.J. Corbin, A.M. Jefferson, M.R. Johnson (2016) Soot Yield Measurements of Associated Gas Flares in Ecuador’s Amazon Basin using Sky-LOSA, Combustion Institute Canadian Section, 2016 Spring Technical Meeting, Waterloo, ON, May 10-12.
A.M. Jefferson, D.J. Corbin, M.R. Johnson (2016) Emissions of Nitrogen Oxides from Turbulent Non-Premixed Flames: A Comparison to Current Emission Factors and Scaling Laws, Combustion Institute Canadian Section, 2015 Spring Technical Meeting, Waterloo, ON, May 10-12.
A.M. Jefferson, D.J. Corbin, M.R. Johnson, A. Vali, L.W. Kostiuk (2015) Assessment of Potential Effects of Injected Salt Water and Hydrochloric Aerosols on Efficiency of Lab-scale Flares, Air & Waste Management Association 108th Annual Conference(Paper #: 525), Rayleigh, NC, June 22-25.
B.M. Conrad, M.R. Johnson (2015) Uncertainties in Overcast Sky Reconstruction for Open-Path Attenuation Measurements, Air & Waste Management Association 108th Annual Conference(Paper #: 74), Rayleigh, NC, June 22-25.
D.Sawires, M.R. Johnson, G.R. Hendra, W.K. Bushe (2015) Effects of Beam Steering on the Accuracy of Long-Path Optical Diagnostics of Plumes, Air & Waste Management Association 108th Annual Conference(Paper #: 522), Rayleigh, NC, June 22-25.
S.A. Festa-Bianchet, S.B. Schoonbaert, M.R. Johnson (2015) Investigating Storage Tank Venting Losses: A Spectroscopic Approach, Air & Waste Management Association 108th Annual Conference(Paper #: 526), Rayleigh, NC, June 22-25.
M.R. Johnson*, D.R. Tyner (2015) Analysis of Reported Flaring, Venting, and Natural Gas Fuel Use Volumes during the Production Phase of Tight Gas Wells in Alberta, Air & Waste Management Association 108th Annual Conference(Paper #: 532), Rayleigh, NC, June 22-25
A.M. Jefferson, D.J. Corbin, M.R. Johnson, A. Vali, L.W. Kostiuk (2015) Experimental Examination of Injected Salt Water and Hydrochloric Acid Solutions on the Carbon Conversion and Emissions of Turbulent Non-premixed Flames, Combustion Institute Canadian Section, 2015 Spring Technical Meeting, Saskatoon, SK, May 11-14.
B.M. Conrad, M.R. Johnson (2015) Fuel-Mass-Specific Soot Emission Rates from Gas Flares in Ecuador’s Amazon Basin, Combustion Institute Canadian Section, 2015 Spring Technical Meeting, Saskatoon, SK, May 11-14.
D. Sawires, M.R. Johnson, G.R. Hendra, W.K. Bushe (2015) Simulation of Beam Steering Inside a Turbulent Non-Premixed Flame, Combustion Institute Canadian Section, 2015 Spring Technical Meeting, Saskatoon, SK, May 11-14.
I.M. Joynes, M.R. Johnson (2014) Inverse Pollutant Transport Modelling for Fugitive Emissions, Air & Waste Management Association 107th Annual Conference(Paper #: 33526), Long Beach, CA, June 24-27, 2014.
S. Schoonbaert, D.R. Tyner, M. R. Johnson (2014) Ambient Gas Quantification Using Multipoint Optical Detection, Air & Waste Management Association 107th Annual Conference(Paper #: 33438), Long Beach, CA, June 24-27, 2014.
D.J. Corbin, M.R. Johnson (2014) Methodologies and Uncertainties for Measuring Black Carbon and NOx from Lab-scale and in Situ Upstream Oil and Gas Flares, Air & Waste Management Association 107th Annual Conference(Paper #: 33580), Long Beach, CA, June 24-27, 2014.
S.A. Festa-Bianchet, S. Schoonbaert, M. R. Johnson (2014) A Quantifying Tank Venting Losses Using Tunable Diode Laser Spectroscopy, Air & Waste Management Association 107th Annual Conference(Paper #: 33522), Long Beach, CA, June 24-27, 2014.
J.Gorski, W. Chisty, M.R. Johnson (2014) Flame Response Analysis of Syngas, ASME Turbo Expo 2014, Paper No: GT2014-25409, Düsseldorf, Germany, June 16-20.
C.A. Brereton, M.R. Johnson (2014) Progress Toward Inverse Micro-Scale Dispersion Modelling with OpenFOAM, 22nd Annual Conference of the CFD Society of Canada, Toronto, ON, June 1-4, 2014.
M. Kazemimanesh, D.J Corbin, R. Dastanpour, S.N. Rogak, M.R. Johnson, L.W. Kostiuk, J.S. Olfert (2014) Effects of distilled water, sodium chloride solution, and hydrochloric acid solution on particulate emission of flares, Combustion Institute Canadian Section, 2014 Spring Technical Meeting: Paper 7-4, Windsor, ON, May 12-15.
B.M. Crosland, K.A. Thomson, M.R. Johnson (2014) Instantaneous soot volume fraction and morphology measurements in turbulent, buoyant, non-premixed flames, Combustion Institute Canadian Section, 2014 Spring Technical Meeting: Paper 12-2, Windsor, ON, May 12-15.
D.J. Corbin, M.R. Johnson (2013) Methodologies and Uncertainties for Measuring Combustion Completion in Turbulent Non‐premixed Flames, Combustion Institute Canadian Section, 2013 Spring Technical Meeting: Paper 03‐008, Quebec, QC, May 13-16.
M. Kazemimanesh, L.W. Kostiuk, D. Nobes J.S. Olfert, M.R. Johnson (2013) Investigation and Characterization of the Effects of Distilled Water, Salt Water, and Hydrochloric Acid Solution on Flare, Combustion Institute Canadian Section, 2013 Spring Technical Meeting: Paper 10‐003, Quebec, QC, May 13-16.
B.M. Crosland, K.A. Thomson, M.R. Johnson (2013) Optimum Detection Wavelength Selection for Simultaneous Laser Induced Incandescence and Elastic Light Scattering Measurement of Soot Volume Fraction and Primary Particle Diameter, Combustion Institute Canadian Section, 2013 Spring Technical Meeting: Paper 09‐005, Quebec, QC, May 13-16.
R.W. Devillers, K.A. Thomson, M.R. Johnson (2012) Soot Emission Measurement in Flares by Sky-LOSA: Reduction of Uncertainty in Field Measurements, Air & Waste Management Association 105th Annual Conference, San Antonio, TX, June 19-22, 2012.
D.J. Corbin, M.R. Johnson (2012) Experimental Measurement of Nitrogen Oxide Emission Factors for Lab Scale Flares, Air & Waste Management Association 105th Annual Conference, San Antonio, TX, June 19-22, 2012.
C.A. Brereton, M.R. Johnson (2012) Steady-state Wind Field Reconstruction for Pollutant Emission Location, Air & Waste Management Association 105th Annual Conference, San Antonio, TX, June 19-22, 2012.
I.M. Joynes, M.R. Johnson (2012) Inverse Dispersion Modelling for Fugitive Emissions Quantification within an Industrial Geometry, Air & Waste Management Association 105th Annual Conference, San Antonion, TX, June 19-22, 2012.
R.W. Devillers, K.A. Thomson, M.R. Johnson (2012) Approach for Reducing Uncertainty in Field Measurements of Soot Emission Rates Using Sky-LOSA, Combustion Institute, Canadian Section, 2012 Spring Technical Meeting: Paper 02-006, Toronto, ON, May 13-16.
B.M. Crosland, M.R. Johnson, K.A. Thomson (2012) Laser Induced Incandescence and Elastic Light Scattering of Soot in a Lab-Scale Gas Flare, Combustion Institute, Canadian Section, 2012 Spring Technical Meeting: Paper 10-003, Toronto, ON, May 13-16.
J. Gorski, W. Chisty, M.R. Johnson (2012) Flame Response of Syngas–Methane Mixtures in an Acoustically Forced Flat Flame, Combustion Institute, Canadian Section, 2012 Spring Technical Meeting: Paper 06-005, Toronto, ON, May 13-16.
D.J. Corbin, M.R. Johnson (2012) Scaling of Nitrogen Oxide Emissions from Experimental Lab-scale Flares, Combustion Institute, Canadian Section, 2012 Spring Technical Meeting: Paper 12-005, Toronto, ON, May 13-16.
M. Kazemimanesh, L.W. Kostiuk, M.R. Johnson, B. Fleck, J.S. Olfert (2012) Exploratory Investigation of the Effects of Distilled Water, Tap Water, and Salt Water on Flare Particulate Emissions, Combustion Institute, Canadian Section, 2012 Spring Technical Meeting: Paper 11-002, Toronto, ON, May 13-16.
S.B. Schoonbaert, M.R. Johnson (2011) Fibre-Based TDLS Sensor Network for Detecting Fugitive Emission Sources, Air & Waste Management Association 104th Annual Conference: Paper 2011-A-294-AWMA, Orlando, Fl, June 21-24, 2011.
I.M. Joynes, M.R. Johnson (2011) Adjoint Sensitivity Analysis for Fugitive Emissions Characterization on a Building Scale, Air & Waste Management Association 104th Annual Conference: Paper 2011-A-515-AWMA, Orlando, Fl, June 21-24, 2011, 5 pages.
J.D.N. McEwen, M.R. Johnson, K.A. Thomson (2011) Experimental Measurement of Elemental Carbon & Organic Carbon for Soot Producing Lab-Scale Flares, Air & Waste Management Association 104th Annual Conference: Paper 2011-A-490-AWMA, Orlando, Fl, June 21-24, 2011, 5 pages.
R.W. Devillers, K.A. Thomson, M.R. Johnson (2011) Soot emission measurement in flares by sky-LOSA: experimental correction of the direct sun-light scattering bias, Air & Waste Management Association 104th Annual Conference: Paper 2011-A-478-AWMA, Orlando, Fl, June 21-24, 2011, 6 pages.
C.A. Brereton, M.R. Johnson (2011) Effect of Wind Modeling Error on Fugitive Emission Location Predictions, Air & Waste Management Association 104th Annual Conference: Paper 2011-A-423-AWMA, Orlando, Fl, June 21-24, 2011, 5 pages.
R.W. Devillers, K.A. Thomson, M.R. Johnson (2011) Soot emission measurement in flares by sky-LOSA: Correction of the direct sunlight scattering bias with a polarizer, Combustion Institute, Canadian Section, 2011 Spring Technical Meeting: Paper C4-1, Winnipeg, MB, May 8-11.
B.M. Crosland, K.A. Thomson, M.R. Johnson (2011) On the reduction of uncertainty in two-dimensional auto-compensating laser-induced incandescence via laser beam shaping, Combustion Institute, Canadian Section, 2011 Spring Technical Meeting: Paper C4-2, Winnipeg, MB, May 8-11.
J. Gorski, W. Chisty, M.R. Johnson (2011) Effect of Fuel Composition on the Response of an Acoustically Forced Flat Flame, Combustion Institute, Canadian Section, 2011 Spring Technical Meeting: Paper C3-2, Winnipeg, MB, May 8-11.
J.D.N. McEwen, K.A. Thomson, M.R. Johnson (2011) Experimental Measurements of Particle Phase Pollutants for Lab Scale Flares, Combustion Institute, Canadian Section, 2011 Spring Technical Meeting: Paper C3-1, Winnipeg, MB, May 8-11.
G.E. Ballachey, M.R. Johnson (2011) Characterization of Blowoff Conditions for a Low-Swirl Burner, Combustion Institute, Canadian Section, 2011 Spring Technical Meeting: Paper B2-3, Winnipeg, MB, May 8-11.
A.R. Coderre and M.R. Johnson (2010) Solution Gas Flaring and Venting in the Alberta Upstream Oil and Gas Industry: Trends and Mitigation Potential, AWMA 103rd Annual Conference: Paper 2010-A-1101-AWMA, Calgary, Alberta, June 22-24, 2010, 13 pages.
R.W. Devillers, K.A. Thomson, M.R. Johnson (2010) Polarization correction of sun-light scattering in sky-scattered solar radiation based plume transmissivity measurements, AWMA 103rd Annual Conference: Paper 2010-A-1012-AWMA, Calgary, Alberta, June 22-24, 2010, 17 pages.
M.R. Johnson, R.W. Devillers, K.A. Thomson (2010) Field demonstration of Sky-LOSA to directly measure soot flux from a flare in Uzbekistan, Combustion Institute, Canadian Section, 2010 Spring Technical Meeting, Ottawa, ON, May 9-12, Paper A7-3, pp.140-146.
R.W. Devillers, K.A. Thomson, M.R. Johnson (2010) Polarization correction of sun-light scattering for sky-scattered solar radiation based plume transmissivity measurements, Combustion Institute, Canadian Section, 2010 Spring Technical Meeting, Ottawa, ON, May 9-12, Paper B7-3, pp.321-327.
B.M. Crosland, K.A. Thomson, M.R. Johnson (2010) Uncertainty analysis of AC-2D-LII via Monte-Carlo simulation in a laminar non-premixed ethylene flame, Combustion Institute, Canadian Section, 2010 Spring Technical Meeting, Ottawa, ON, May 9-12, Paper C1-3, pp.359-363.
P.C. Vena, B.M. Deschamps, G.J. Smallwood, M.R. Johnson (2010) Flame front behavior in a stratified iso-octan/air turbulent V-flame, Combustion Institute, Canadian Section, 2010 Spring Technical Meeting, Ottawa, ON, May 9-12, Paper A5-4, pp.99-104.
R.W. Devillers, K.A. Thomson, Matthew R. Johnson (2010) Evaluating soot emission in flares from plume transmissivity measurements– Correction of errors caused by sun-light scattering, American Association for Aerosol Research (AAAR) 29th Annual Conference, Portland, Oregon, October 25-29, 2010 (Paper Number: 8.E.26).
B.M. Crosland, M.R. Johnson, E.A. Matida (2010) Uncertainty in Measurements of Spray Velocity Profiles of a Pressurized-Metered Dose Inhaler, American Association for Aerosol Research (AAAR) 29th Annual Conference, Portland, Oregon, October 25-29, 2010 (Paper Number: 624).
Y. Liu, E.A. Matida, M.R. Johnson (2010) Numerical Simulation and In-vitro measurements of Aerosol Deposition in the Carleton-Civic Standardized Human Nasal Cavity, American Association for Aerosol Research (AAAR) 29th Annual Conference, Portland, Oregon, October 25-29, 2010 (Paper Number: 675).
S.R. Wilson, Y. Liu, E.A. Matida, M.R. Johnson (2010) Measurements and Simulation of Aerosol Deposition as a Function of Reynolds Number in a Ninety-Degree Pipe Bend, American Association for Aerosol Research (AAAR) 29th Annual Conference, Portland, Oregon, October 25-29, 2010 (Paper Number: 681).
P.C. Vena, B. Deschamps, G.J. Smallwood, M.R. Johnson (2009) Structure of a Partially Premixed Iso-Octane/Air Turbulent V-Flame, Society of Automotive Engineers (SAE) Powertrains, Fuels, and Lubricants Technical Conference: Paper # 2009-01-2655, San Antonio, Texas, Nov. 2-4 2009, 9 pages.
H. Guo, S. Trottier, M.R. Johnson, G.J. Smallwood (2009) Numerical Investigation on Soot Formation from Laminar Diffusion Flames of Ethylene/Methane Mixture, HT2008: Proceeding of the ASME Summer Heat Transfer Conference, Vol. 3, 103-109.
A.R. Coderre, K.A. Thomson, D.R. Snelling, M.R. Johnson (2009) Optical Absorption Properties of Cooled Soot from A Methane Flame, Combustion Institute, Canadian Section, 2009 Spring Technical Meeting, Montreal, QC, May 10-13, pp.201-207.
J.D. McEwen, K.A. Thomson, and M.R. Johnson (2009) A Sampling Protocol for Overfire Soot Emissions from Lab-scale Flares, Combustion Institute, Canadian Section, 2009 Spring Technical Meeting, Montreal, QC, May 10-13, pp.177-182.
P.C. Vena, B. Deschamps, G.J. Smallwood, M.R. Johnson (2009) Equivalence Ratio Gradient Effects in a Stratified Isooctane/Air Turbulent Flame Front, Combustion Institute, Canadian Section, 2009 Spring Technical Meeting, Montreal, QC, May 10-13, pp.102-107.
B.M. Crosland, K.A. Thomson, M.R. Johnson (2009) Instantaneous, quasi-two-dimensional measurement of soot volume fraction in an ethylene diffusion flame via two-colour laser-induced incandescence, Combustion Institute, Canadian Section, 2009 Spring Technical Meeting, Montreal, QC, May 10-13, pp.115-120.
C.A. Brereton, M.R. Shives, J.A. Goldak, M.R. Johnson (2009) Statistical Pollutant Source Location on a Building Scale, 17th Annual Conference of the CFD Society of Canada: Paper CFDSC2009-3D2, Ottawa, Ontario, Canada, May 3-5, 2009, 9 pages.
Y. Liu, E. A. Matida, and M. Johnson (2008) Numerical Simulation of Particle Deposition in a Novel Idealized Human Nasal Cavity, 16th Annual Conference of the CFD Society of Canada, Saskatoon, SK, June 9-11, 2008 (Paper 1C2).
M.Ilie, M.R. Johnson, F. Nitzsche and E.A. Matida (2008) Vortex-cylinder mechanism of interaction; a URANS/LES comparison, 16th Annual Conference of the CFD Society of Canada, Saskatoon, SK, June 9-11, 2008 (Paper 1B3).
S. Tavoularis, A. Cameron, M.R. Johnson (2008) Generation and evolution of coherent structures in a jet interacting with a cross-stream and a wake, Symposium on Fluid Science and Turbulence, Baltimore, MD, USA., May 29-30.
G.E. Ballachey and M.R. Johnson (2008) Stabilization of Co-Annular Premixed Flames with and without Swirl, Combustion Institute, Canadian Section, 2008 Spring Technical Meeting, Toronto, ON, May 11-14, pp.142-147.
A.R. Coderre, K.A. Thomson, D.R. Snelling, M.R. Johnson (2008) Measuring Optical Properties of Cooled Soot, Combustion Institute, Canadian Section, 2008 Spring Technical Meeting, Toronto, ON, May 11-14, pp.29-34.
P.C. Vena, B. Deschamps, G.J. Smallwood, and M.R. Johnson (2008) OH/CH2O/3-Pentanone PLIF Applied to a Stratified Isooctane/Air Turbulent Flame Front, Combustion Institute, Canadian Section, 2008 Spring Technical Meeting, Toronto, ON, May 11-14, pp.148-154.
C. Yang, K.A. Thomson, and M.R. Johnson (2008) Measurement of Transmissivity in Outdoor Soot Plumes using Sky-Scattered Solar Radiation, Combustion Institute, Canadian Section, 2008 Spring Technical Meeting, Toronto, ON, May 11-14, pp.35-40.
C.A. Brereton, J. Goldak, M.R. Johnson (2008) Statistical Backtracking of Source Emissions, presented at the 1000 Islands Fluid Mechanics Meeting, Gananoque, ON, April 18-20.
A. Cameron, S. Tavoularis, M.R. Johnson (2008) Generation and Evolution of Coherent Structures in a Jet Interacting with a Cross-Stream and a Wake, presented at the 1000 Islands Fluid Mechanics Meeting, Gananoque, ON, April 18-20.
S. Tavoularis, A. Cameron, M.R. Johnson (2007) Structure of a low-momentum elevated jet in cross-flow, 60th Ann. Meet. Amer. Phys. Soc., Salt Lake City, USA, Bull. Amer. Phys. Soc. 52.
P.M. Canteenwalla, K.A. Thomson, G.J. Smallwood, and M.R. Johnson (2007) Soot emissions from turbulent diffusion flames burning simple alkane fuels, Combustion Institute, Canadian Section, 2007 Spring Technical Meeting, Banff, AB, May 13-16, Paper E1, 6 pages.
C. Yang, K.A. Thomson, and M.R. Johnson (2007) Sensitivity limits in plume transmissivity measurements using sky scattered solar radiation, Combustion Institute, Canadian Section, 2007 Spring Technical Meeting, Banff, AB, May 13-16, Paper C2, 7 pages.
P.C. Vena, B.M. Deschamps, G.J. Smallwood, and M.R. Johnson (2007) Mixture fraction gradient effects on heat release in partially premixed combustion, Combustion Institute, Canadian Section, 2007 Spring Technical Meeting, Banff, AB, May 13-16, Paper D5, 7 pages.
A. Coderre, D.R. Snelling, G.J. Smallwood, and M.R. Johnson (2007) Measuring Optical Properties of Cooled Post-Flame Soot, Combustion Institute, Canadian Section, 2007 Spring Technical Meeting, Banff, AB, May 13-16, Paper E5, 6 pages.
J.G. Strahman, R.K. Cheng, and M.R. Johnson (2007) Predicting Stability Limits of an Ultra-Lean Premixed Low Swirl Burner, Combustion Institute, Canadian Section, 2007 Spring Technical Meeting, Banff, AB, May 13-16, Paper C6, 7 pages.
P.M. Canteenwalla, K.A. Thomson, G.J. Smallwood, and M.R. Johnson (2006) Sampling of Soot from Lab-scale Flares, Combustion Institute, Canadian Section, 2006 Spring Technical Meeting, Waterloo, ON, May 14-17, Paper I3, 6 pages.
C. Yang, K.A. Thomson, and M.R. Johnson (2006) Light Sources and Image Processing Methods for 2D Optical Transmissivity Measurements of Soot Plumes, Combustion Institute, Canadian Section, 2006 Spring Technical Meeting, Waterloo, ON, May 14-17, Paper N3, 6 pages.
P.C. Vena, B.M. Deschamps, G.J. Smallwood, and M.R. Johnson (2006) A Review of Partially Premixed Combustion, Combustion Institute, Canadian Section, 2006 Spring Technical Meeting, Waterloo, ON, May 14-17, Paper G4, 6 pages.
M. Ilie, F. Nitzsche, M. R. Johnson, E. A. Matida (2006) Simulation of 2-D Advecting-Vortex Flow over Rigid Bodies using Large Eddy Simulation, ASME International Student Conference, Istanbul, Turkey, 2006.
Y. Liu, E.A. Matida, J. Gu, and M.R. Johnson (2006) Numerical Simulation of Particle Deposition in a Realistic Human Nasal Cavity, 1000 Islands Fluid Mechanics Meeting, Gananoque, ON, April 28-30.
S. Kherani, Y. Liu, J. Gu, E.A. Matida, M.R. Johnson, and J. Marsan (2006) Aerosol Deposition Simulation in a Nasal Cavity, Canadian Society of Otolaryngology – Head & Neck Surgery, Annual Meeting, Kelowna, BC, 2006.
P.M. Canteenwalla, K.A. Thomson, G.J. Smallwood, and M.R. Johnson (2005) Determination of Particle Size Distribution from Lab-scale Flares, Poster presented at 2005 Petroleum Technology Alliance of Canada (PTAC) Air Issues Forum, Calgary, Alberta, Sept. 28, 2005.
K. Thomson and M.R. Johnson (2005) Solar Radiation Based Plume Transmissivity Measurements, Combustion Institute, Canadian Section, 2005 Spring Technical Meeting, Halifax, NS, May 15-18, Paper 9-3, pages 202-208.
S. Trottier, H. Guo, G.J. Smallwood, and M.R. Johnson (2005) Sooting Propensity of Binary Fuel Mixtures Under Constant Flame Temperature Condition, Combustion Institute, Canadian Section, 2005 Spring Technical Meeting, Halifax, NS, May 15-18, Paper 7-1, pages 148-153.
E. Sansoucy, P. Richer, K. Taylor, B. Jodoin and M. Johnson (2005) Particle in-flight velocity measurements from particle image velocimetry in cold spray, International Thermal Spray Conference, Bassel, Switzerland, May 2-4, 6 pages.
P. Richer, E. Sansoucy, K. Taylor, M. Johnson and B. Jodoin (2005) Effect of particle geometry and substrate preparation in cold spray International Thermal Spray Conference, Bassel, Switzerland, May 2-4, 6 pages
S. Trottier, G.J. Smallwood, H.G. Guo, and M.R. Johnson (2004) Measurement and Modeling of Soot Formation in Binary Fuel Mixtures, Combustion Institute, Canadian Section, 2004 Spring Technical Meeting, Kingston, Ontario, May 9-12, Paper Q3, 6 pages.
J. B. Bell, M. S. Day, J. F. Grcar, M. J. Lijewski, M. Johnson, R. K. Cheng, and I. G. Shepherd (2003) Numerical Simulation of a Premixed Turbulent V-Flame, 19th International Colloquium on the Dynamics of Explosions and Reactive Systems, Hakone, Japan, July 27-August 1, Paper 13, 4 pages.
M.R. Johnson and R.K. Cheng (2003) Dynamics of the Flame Flowfield in a Low-Swirl Burner, 19th International Colloquium on the Dynamics of Explosions and Reactive Systems, Hakone, Japan, July 27-August 1, Paper 206, 4 pages.
L.W. Howell, M.R. Johnson, D.J. Wilson and L.W. Kostiuk (2003) Compositional Structure of Model Flare Stack Plumes in Crosswind, Combustion Institute, Canadian Section, 2003 Spring Technical Meeting, Vancouver, BC, May 11-14, Paper 34, 7 pages
M.R. Johnson, D. Littlejohn, R. K. Cheng, W. A. Nazeer, and K. O. Smith (2003) PIV Investigation of High-swirl and Low-swirl Injectors for Lean Premixed Gas Turbines, Joint Meeting of the United States Sections – The Combustion Institute, Chicago, IL, March 16-19, Paper E08, 6 pages.
M.R. Johnson and L.W. Kostiuk (2001) Imaging of the Fuel Stripping Mechanism for Wake-Stabilized Diffusion Flames in a Crossflow, Poster Presentation at the IUTAM Symposium on Turbulent Mixing and Combustion, Kingston, Ontario, May 2001.
M.R. Johnson, G.P. Thomas, D.J. Wilson, and L.W. Kostiuk (2001) Imaging of the Fuel Stripping Mechanism for Diffusion Flames in a Crossflow, Combustion Institute, Canadian Section, 2001 Spring Technical Meeting, Montreal, Quebec, May 13-16, Paper 38, 6 pages.
M.R. Johnson, L.W. Kostiuk, and D.J. Wilson (2001) A Mechanism for Fuel Stripping in Low-Momentum Jet diffusion Flames in a Crosswind, Joint Meeting of the United States Sections – The Combustion Institute, Oakland, California, March 25-28, Paper 261, 14 pages.
M.R. Johnson, P. Poudenx, D.J. Wilson, and L.W. Kostiuk (2000) Evidence for a Fuel Stripping Mechanism in Low-Momentum Jet Diffusion Flames in a Crosswind, Combustion Institute, Canadian Section, 2000 Spring Technical Meeting, Ottawa, Ontario, May 15-17, Paper #10, 6 pages.
P. Poudenx, M.R. Johnson, L.W. Kostiuk, and D.J. Wilson (2000) Local Combustion Efficiency Measurement of Gas Flares by Multipoint Sampling of the Plume, Combustion Institute, Canadian Section, 2000 Spring Technical Meeting, Ottawa, Ontario, May 15-17, Paper #11, 6 pages.
M.R. Johnson and L.W. Kostiuk (1999) Effects of a Fuel Diluent on the Efficiency of a Jet Diffusion Flame in a Crosswind, Combustion Institute, Canadian Section, 1999 Spring Technical Meeting, Edmonton, Alberta, May 16-19, Paper 99-3, 6 pages.
M.R. Johnson, O. Zastavniuk, J.D. Dale, and L.W. Kostiuk (1999) The Combustion Efficiency of Jet Diffusion Flames in Crossflow, Joint Meeting of the United States Sections – The Combustion Institute, Washington, D.C., March 15-17, Paper 87, 4 pages.
M.R. Johnson, A.J. Majeski, D.J. Wilson and L.W. Kostiuk (1998) The Combustion Efficiency of a Propane Jet Diffusion Flame in Crossflow, Western States Section of the Combustion Institute Technical Meeting, Seattle Washington, October 26-7, Paper # 98F-38, 19 pages.
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