Alexandre Langlois

Prix et distinctions

• (2024) Excellence and quality in supervising graduate students. Université de Sherbrooke.
• (2023) Excellence and quality in supervising graduate students. Université de Sherbrooke.
• (2017) Bronze Medal. Canadian Remote Sensing Society.

Financement

• Contrat. Simulating 3D snow accumulation around northern infrastructures. Kativik Regional Government (KRG) (Kuujjuaq, Canada). 95 790 $. (2026).
• Contrat. Simulations hydrologiques avec le modèle SPARROW. Environment and Climate Change Canada (Ottawa, Canada). 19 818 $. (2025-2026).
• Contrat. Initial Planning Summary: Input Data Preparation for SPARROW TP and TN Models in the Red–Assiniboine Basin. Environment and Climate Change Canada (Ottawa, Canada). 22 937 $. (2025-2026).
• Subvention. Multidisciplinary Observatory for Climate Change operations. Polar Knowledge Canada (Ottawa, Canada). 185 960 $. (2025).
• Contrat. Predicting snow accumulation in a context of transport in Akulivik. Kativik Regional Government (KRG) (Kuujjuaq, Canada). 143 171 $. (2024-2026).
• Subvention. Frequency Modulated Continuous Wave (FMCW) radar measurements to improve snow water equivalent retrievals. Environment and Climate Change Canada (Ottawa, Canada). 100 000 $. (2024-2026).
• Contrat. Developing a SWE retrieval algorithm using in-situ dual-Ku radar data. Environment and Climate Change Canada (Ottawa, Canada). 16 000 $. (2024-2025).
• Subvention. Operational mapping of snow depth and snow melt in alpine regions using RADARSAT Constellation Mission and a multi-layered snow model. National Search and Rescue Secretariat (ON, Canada). 498 170 $. (2024-2027).
• Contrat. Développement et calibration d’une configuration de modélisation du modèle SNOWPACK sur le secteur de Salluit. Kativik Regional Government (KRG) (Kuujjuaq, Canada). 40 744 $. (2024).
• Contrat. Evaluating the potential of using very high spatial resolution satellite imagery to derive snow parameters of hydrological interest. Environment and Climate Change Canada (Ottawa, Canada). 34 681 $. (2023-2024).
• Contrat. Developing a geodatabase of sediments processes in the Fraser River watershed, British-Columbia. Environment and Climate Change Canada (Ottawa, Canada). 34 975 $. (2022-2023).
• Contrat. Sediment contaminant analysis for the Fraser River Basin using both historical data sets and available new data. Environment and Climate Change Canada (Ottawa, Canada). 31 200 $. (2022-2023).
• Subvention. Peary caribou, muskoxen and their predators: the value of Indigenous Knowledge in informing species recovery. Natural Sciences and Engineering Research Council of Canada (Ottawa, Canada). 1 808 637 $. (2021-2026).
• Subvention. Quantifying multi-scale impacts of winter extreme events on the atmosphere-snow-ground interface in the Arctic. Natural Sciences and Engineering Research Council of Canada (Ottawa, Canada). 225 000 $. (2021-2026).
• Subvention. Développement d'une plateforme de simulations du couvert nival en milieu montagneux à l'aide de la télédétection pour l'amélioration de la prédiction du risque d'avalanche. Fonds de recherche du Québec (Québec, Canada). 150 000 $. (2021-2024).
• Subvention. Improved Snowfall Estimation in support of Avalanche Hazard Assessment. National Search and Rescue Secretariat (ON, Canada). 431 600 $. (2021-2024).
• Subvention. Automated snow simulations of arctic snow cover in the Kitikmeot region. Polar Knowledge Canada (Ottawa, Canada). 34 375 $. (2021-2022).
• Contrat. Developing snow indices using high-resolution imagery over forested and agricultural areas. Environment and Climate Change Canada (Ottawa, Canada). 30 020 $. (2021-2022).
• Subvention. Multidisciplinary Observatory for Arctic Climate Change and Extreme Events Monitoring (MOACC),. CFI (Ottawa, Canada). 4 262 997 $. (2021-2026).
• Contrat. Mapping sediments and runoff in British Columbia. Environment and Climate Change Canada (Ottawa, Canada). 35 000 $. (2020-2021).
• Subvention. Mapping Peary caribou habitat quality using snow modeling and remote sensing. Environment and Climate Change Canada (Ottawa, Canada). 120 000 $. (2018-2021).
• Subvention. Operational snow simulations for avalanche forecasting in Canada: implementation of the SNOWPACK model into the Avalanche Forecasting System. National Search and Rescue Secretariat (ON, Canada). 348 250 $. (2018-2021).
• Subvention. Développement d’indicateurs spatialisés de qualité d’habitats hivernaux nordiques à l’aide d’observations satellites et de modélisation du couvert nival : contexte pour le caribou barren-ground et Peary. Fonds de recherche du Québec (Québec, Canada). 190 738 $. (2017-2020).
• Subvention. Amélioration des Prévisions de l’Impact de l'évolution du Climat Nordique sur la cryosphère terrestre (APIC-Nord). Fonds de recherche du Québec (Québec, Canada). 25 000 $. (2017-2019).
• Contrat. Coupling SNOWPACK and SWAT in the bay of Quinte to improve runoff simulations. Environment and Climate Change Canada (Ottawa, Canada). 23 500 $. (2017-2018).
• Subvention. Development of a multi-scale cryosphere monitoring network for the Kitikmeot region and Northwest territories using in-situ measurements, modeling and remote sensing. Polar Knowledge Canada (Ottawa, Canada). 525 453 $. (2017-2021).
• Subvention. Quantifying alpine snow depth variability using airborne LiDAR. Natural Sciences and Engineering Research Council of Canada (Ottawa, Canada). 24 657 $. (2017).
• Contrat. Measuring SWE using UAV photogrammetry. Natural Resources Canada (Ottawa, Canada). 22 000 $. (2016-2017).
• Contrat. Developing a density snow index to assess habitat quality of ungulates. Environment and Climate Change Canada (Ottawa, Canada). 21 500 $. (2016-2017).
• Contrat. Simulating and measuring SWE at the watershed scale in the Bay of Quinte area. Environment and Climate Change Canada (Ottawa, Canada). 23 500 $. (2016).
• Contrat. Developing a geosatabase of the Bay of Quinte area. Environment and Climate Change Canada (Ottawa, Canada). 18 000 $. (2015-2016).
• Subvention. Monitoring of winter extreme events in the Arctic. CFI (Ottawa, Canada). 372 432 $. (2014-2018).
• Contrat. Quantifying snow density for caribou foraging conditions. Environment and Climate Change Canada (Ottawa, Canada). 21 500 $. (2014-2016).
• Contrat. Developing a snow simulation platform to assess foraging conditions for caribou. Environment and Climate Change Canada (Ottawa, Canada). 23 500 $. (2014-2015).
• Contrat. Identifying rain-on-snow events from space using passive microwaves. Environment and Climate Change Canada (Ottawa, Canada). 22 500 $. (2014-2016).
• Subvention. Monitoring weather extreme events in the arctic using modeling and remote sensing. Natural Sciences and Engineering Research Council of Canada (Ottawa, Canada). 258 000 $. (2013-2019).
• Subvention. Measuring extreme events in the Canadian arctic. Natural Sciences and Engineering Research Council of Canada (Ottawa, Canada). 26 514 $. (2013-2015).
• Subvention. Avalanche prediction improvement: measurements and modeling. National Search and Rescue Secretariat (ON, Canada). 182 807 $. (2013-2016).
• Subvention. Validation du modèle MRCC par télédétection micro-ondes passives. Ouranos (QC, Canada). 158 700 $. (2012-2014).

Publications

Articles

• Francis Meloche, Grégoire Bobillier, Louis Guillet, Francis Gauthier, Alexandre Langlois, Johan Gaume. (2025). Modeling Crack Arrest in Snow Slab Avalanches—Toward Estimating Avalanche Release Sizes. Journal of Geophysical Research: Earth Surface. DOI
• Alex Gélinas, Bilal Filali, Alexandre Langlois, Richard Kelly, Alex Mavrovic, François Demontoux, Alexandre Roy. (2025). New Wideband Large Aperture Open-Ended Coaxial Microwave Probe for Soil Dielectric Characterization. IEEE Transactions on Geoscience and Remote Sensing. DOI
• Francis Meloche, Benjamin Imbach, Jean-Benoit Madore, Benjamin Reuter, Alexandre Langlois, Francis Gauthier. (2025). The Rainy Continental snow and avalanche climate: International comparison with 40 years of snow cover modeled in the Chic-Chocs, northeastern Appalachian Mountains. Journal of Glaciology. DOI
• Francis Meloche, Francis Gauthier, Alexandre Langlois. (2024). Snow mechanical property variability at the slope scale – implication for snow mechanical modelling. The Cryosphere. DOI
• Vincent Sasseville, Alexandre Langlois, Ludovic Brucker, Cheryl Ann Johnson. (2024). Patterns and Trend Analysis of Rain-on-Snow Events using Passive Microwave Satellite Data over the Canadian Arctic Archipelago Since 1987. Journal of Hydrometeorology. DOI
• Julien Meloche, Alain Royer, Alexandre Roy, Alexandre Langlois, Ghislain Picard. (2024). Improvement of Polar Snow Microwave Brightness Temperature Simulations for Dense Wind Slab and Large Grain. IEEE Transactions on Geoscience and Remote Sensing. DOI
• Francis Meloche, Louis Guillet, Francis Gauthier, Alexandre Langlois, Johan Gaume. (2024). Influence of slab depth spatial variability on skier-triggering probability and avalanche size. Annals of Glaciology. DOI
• Daniel Kramer, Alexandre Langlois, Alain Royer, Jean-Benoît Madore, Joshua King, Donald McLennan, Érika Boisvert-Vigneault. (2023). Assessment of Arctic snow stratigraphy and water equivalent using a portable Frequency Modulated Continuous Wave RADAR. Cold Regions Science and Technology. DOI
• J-B. Madore, C. Fierz, A. Langlois. (2022). Investigation into percolation and liquid water content in a multi-layered snow model for wet snow instabilities in Glacier National Park, Canada. Frontiers in Earth Science. DOI
• Coralie Gautier, Alexandre Langlois, Vincent Sasseville, Erin Neave, Cheryl Ann Johnson. (2022). Remote sensing, snow modelling, survey data and Indigenous Knowledge show how snow and sea-ice conditions affect Peary caribou (Rangifer tarandus pearyi) distribution and inter-island and island–mainland movements. Polar Research. DOI
• Joëlle Voglimacci-Stephanopoli, Anna Wendleder, Hugues Lantuit, Alexandre Langlois, Samuel Stettner, Andreas Schmitt, Jean-Pierre Dedieu, Achim Roth, Alain Royer. (2022). Potential of X-band polarimetric synthetic aperture radar co-polar phase difference for arctic snow depth estimation. The Cryosphere. DOI
• Jacob Laliberté, A. Langlois, a Royer, J-B Madore, F Gauthier. (2022). Retrieving dry snow stratigraphy using a versatile low-cost frequency modulated continuous wave (FMCW) K-band radar. Physical Geography. DOI
• Chloé Martineau, Alexandre Langlois, Isabelle Gouttevin, Erin Neave, Cheryl A. Johnson. (2022). Improving Peary Caribou Presence Predictions in MaxEnt Using Spatialized Snow Simulations. ARCTIC. DOI
• Julien Meloche, Alexandre Langlois, Nick Rutter, Donald McLennan, Alain Royer, Paul Billecocq, Serguei Ponomarenko. (2022). High‐resolution snow depth prediction using Random Forest algorithm with topographic parameters: A case study in the Greiner watershed, Nunavut. Hydrological Processes. DOI
• Julien Meloche, Alexandre Langlois, Nick Rutter, Alain Royer, Josh King, Branden Walker, Philip Marsh, Evan J. Wilcox. (2022). Characterizing tundra snow sub-pixel variability to improve brightness temperature estimation in satellite SWE retrievals. The Cryosphere. DOI
• Alain Royer, Alexandre Roy, Sylvain Jutras, Alexandre Langlois. (2021). Review article: Performance assessment of radiation-based field sensors for monitoring the water equivalent of snow cover (SWE). The Cryosphere. DOI
• J. Meloche, A. Royer, A. Langlois, N. Rutter, V. Sasseville. (2021). Improvement of microwave emissivity parameterization of frozen Arctic soils using roughness measurements derived from photogrammetry. International Journal of Digital Earth. DOI
• Alain Royer, Florent Domine, Alexandre Roy, Alexandre Langlois, Nicolas Marchand, Gautier Davesne. (2021). New northern snowpack classification linked to vegetation cover on a latitudinal mega-transect across northeastern Canada. Écoscience. DOI
• Alain Royer, Ghislain Picard, Céline Vargel, Alexandre Langlois, Isabelle Gouttevin, Marie Dumont. (2021). Improved Simulation of Arctic Circumpolar Land Area Snow Properties and Soil Temperatures. Frontiers in Earth Science. DOI
• Simon Levasseur, Kristina Brown, Alexandre Langlois, Donald McLennan. (2021). Measurement of Snow Physical Properties and Stable Isotope Variations in the Canadian Sub-Arctic and Arctic Snowpack. Atmosphere-Ocean. DOI
• Nataniel M. Holtzman, Leander D. L. Anderegg, Simon Kraatz, Alex Mavrovic, Oliver Sonnentag, Christoforos Pappas, Michael H. Cosh, Alexandre Langlois, Tarendra Lakhankar, Derek Tesser, Nicholas Steiner, Andreas Colliander, Alexandre Roy, Alexandra G. Konings. (2021). L-band vegetation optical depth as an indicator of plant water potential in a temperate deciduous forest stand. Biogeosciences. DOI
• Theodore Letcher, Carrie Vuyovich, Alexandre Langlois, Alexandre Roy. (2021). Understanding Uncertainty of Snow Radiative Transfer Modeling Within a Mixed Deciduous and Evergreen Forest. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing. DOI
• Patrick Pomerleau, Alain Royer, Alexandre Langlois, Patrick Cliche, Bruno Courtemanche, Jean-Benoît Madore, Ghislain Picard, Éric Lefebvre. (2020). Low Cost and Compact FMCW 24 GHz Radar Applications for Snowpack and Ice Thickness Measurements. Sensors. DOI
• Céline Vargel, Alain Royer, Olivier St-Jean-Rondeau, Ghislain Picard, Alexandre Roy, Vincent Sasseville, Alexandre Langlois. (2020). Arctic and subarctic snow microstructure analysis for microwave brightness temperature simulations. Remote Sensing of Environment. DOI
• Alex Mavrovic, Jean-Benoit Madore, Alexandre Langlois, Alain Royer, Alexandre Roy. (2020). Snow liquid water content measurement using an open-ended coaxial probe (OECP). Cold Regions Science and Technology. DOI
• Alexandre Roy, Peter Toose, Alex Mavrovic, Christoforos Pappas, Alain Royer, Chris Derksen, Aaron Berg, Tracy Rowlandson, Mariam El-Amine, Alan Barr, Andrew Black, Alexandre Langlois, Oliver Sonnentag. (2020). L-Band response to freeze/thaw in a boreal forest stand from ground- and tower-based radiometer observations. Remote Sensing of Environment. DOI
• Alexandre Langlois, Alain Royer, Benoit Montpetit, Alexandre Roy, Martin Durocher. (2020). Presenting Snow Grain Size and Shape Distributions in Northern Canada Using a New Photographic Device Allowing 2D and 3D Representation of Snow Grains. Frontiers in Earth Science. DOI
• Samarth Kaluskar, E. Agnes Blukacz‐Richards, Cheryl Ann Johnson, Yuhong He, Alexandre Langlois, Dong‐Kyun Kim, George Arhonditsis. (2019). Development of a model ensemble to predict Peary caribou populations in the Canadian Arctic Archipelago. Ecosphere. DOI
• Michael Prince, Alexandre Roy, Alain Royer, Alexandre Langlois. (2019). Timing and spatial variability of fall soil freezing in boreal forest and its effect on SMAP L-band radiometer measurements. Remote Sensing of Environment. DOI
• Florent Domine, Ghislain Picard, Samuel Morin, Mathieu Barrere, Jean‐Benoît Madore, Alexandre Langlois. (2019). Major Issues in Simulating Some Arctic Snowpack Properties Using Current Detailed Snow Physics Models: Consequences for the Thermal Regime and Water Budget of Permafrost. Journal of Advances in Modeling Earth Systems. DOI
• Daniel Kaamer, Julien Meloche, Alexandre Langlois, Donald McLennan, Colin Gauthier-Barette. (2019). Designing a DIY-UAV for arctic research purposes and proving its capabilities by retrieving snow depth via structure-from-motion.
• Nicolas Marchand, Alain Royer, Gerhard Krinner, Alexandre Roy, Alexandre Langlois, Céline Vargel. (2018). Snow-Covered Soil Temperature Retrieval in Canadian Arctic Permafrost Areas, Using a Land Surface Scheme Informed with Satellite Remote Sensing Data. Remote Sensing. DOI
• Jean-Benoit Madore, Alexandre Langlois, Kevin Côté. (2018). Evaluation of the SNOWPACK model’s metamorphism and microstructure in Canada: a case study. Physical Geography. DOI
• Caroline Dolant, A. Langlois, L. Brucker, A. Royer, A. Roy, B. Montpetit. (2018). Meteorological inventory of rain-on-snow events in the Canadian Arctic Archipelago and satellite detection assessment using passive microwave data. Physical Geography. DOI
• Joshua King, Chris Derksen, Peter Toose, Alexandre Langlois, Chris Larsen, Juha Lemmetyinen, Phil Marsh, Benoit Montpetit, Alexandre Roy, Nick Rutter, Matthew Sturm. (2018). The influence of snow microstructure on dual-frequency radar measurements in a tundra environment. Remote Sensing of Environment. DOI
• C. Dolant, B. Montpetit, A. Langlois, L. Brucker, O. Zolina, C. A. Johnson, A. Royer, P. Smith. (2018). Assessment of the Barren Ground Caribou Die‐off During Winter 2015–2016 Using Passive Microwave Observations. Geophysical Research Letters. DOI
• B. Montpetit, A. Royer, A. Roy, A. Langlois. (2018). In-situ passive microwave emission model parameterization of sub-arctic frozen organic soils. Remote Sensing of Environment. DOI
• Haobo Lyu, Kaighin A. McColl, Xinlu Li, Chris Derksen, Aaron Berg, T. Andrew Black, Eugenie Euskirchen, Michael Loranty, Jouni Pulliainen, Kimmo Rautiainen, Tracy Rowlandson, Alexandre Roy, Alain Royer, Alexandre Langlois, Jilmarie Stephens, Hui Lu, Dara Entekhabi. (2018). Validation of the SMAP freeze/thaw product using categorical triple collocation. Remote Sensing of Environment. DOI
• Chris Derksen, Xiaolan Xu, R. Scott Dunbar, Andreas Colliander, Youngwook Kim, John S. Kimball, T. Andrew Black, Eugenie Euskirchen, Alexandre Langlois, Michael M. Loranty, Philip Marsh, Kimmo Rautiainen, Alexandre Roy, Alain Royer, Jilmarie Stephens. (2017). Retrieving landscape freeze/thaw state from Soil Moisture Active Passive (SMAP) radar and radiometer measurements. Remote Sensing of Environment. DOI
• Fanny Larue, Alain Royer, Danielle De Sève, Alexandre Langlois, Alexandre Roy, Ludovic Brucker. (2017). Validation of GlobSnow-2 snow water equivalent over Eastern Canada. Remote Sensing of Environment. DOI
• Bruno-Charles Busseau, Alain Royer, Alexandre Roy, Alexandre Langlois, Florent Domine. (2017). Analysis of snow-vegetation interactions in the low Arctic-Subarctic transition zone (northeastern Canada). Physical Geography. DOI
• F. Ouellet, A. Langlois, E. A. Blukacz-Richards, C. A. Johnson, A. Royer, E. Neave, N. C. Larter. (2017). Spatialization of the SNOWPACK snow model for the Canadian Arctic to assess Peary caribou winter grazing conditions. Physical Geography. DOI
• Kevin Côté, Jean-Benoît Madore, Alexandre Langlois. (2017). Uncertainties in the SNOWPACK multilayer snow model for a Canadian avalanche context: sensitivity to climatic forcing data. Physical Geography. DOI
• Alain Royer, Alexandre Roy, Benoit Montpetit, Olivier Saint-Jean-Rondeau, Ghislain Picard, Ludovic Brucker, Alexandre Langlois. (2017). Comparison of commonly-used microwave radiative transfer models for snow remote sensing. Remote Sensing of Environment. DOI
• A. Langlois, C.-A. Johnson, B. Montpetit, A. Royer, E.A. Blukacz-Richards, E. Neave, C. Dolant, A. Roy, G. Arhonditsis, D.-K. Kim, S. Kaluskar, L. Brucker. (2017). Detection of rain-on-snow (ROS) events and ice layer formation using passive microwave radiometry: A context for Peary caribou habitat in the Canadian Arctic. Remote Sensing of Environment. DOI
• C. PAPASODORO, A. ROYER, A. LANGLOIS, E. BERTHIER. (2016). Potential of RADARSAT-2 stereo radargrammetry for the generation of glacier DEMs. Journal of Glaciology. DOI
• Alexandre Roy, Alain Royer, Olivier St-Jean-Rondeau, Benoit Montpetit, Ghislain Picard, Alex Mavrovic, Nicolas Marchand, Alexandre Langlois. (2016). Microwave snow emission modeling uncertainties in boreal and subarctic environments. The Cryosphere. DOI
• Alexandre Roy, Alain Royer, Chris Derksen, Ludovic Brucker, Alexandre Langlois, Arnaud Mialon, Yann H. Kerr. (2015). Evaluation of Spaceborne L-Band Radiometer Measurements for Terrestrial Freeze/Thaw Retrievals in Canada. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing. DOI
• C. Papasodoro, E. Berthier, A. Royer, C. Zdanowicz, A. Langlois. (2015). Area, elevation and mass changes of the two southernmost ice caps of the Canadian Arctic Archipelago between 1952 and 2014. The Cryosphere. DOI
• Florent Dupont, Ghislain Picard, Alain Royer, Michel Fily, Alexandre Roy, Alexandre Langlois, Nicolas Champollion. (2014). Modeling the Microwave Emission of Bubbly Ice: Applications to Blue Ice and Superimposed Ice in the Antarctic and Arctic. IEEE Transactions on Geoscience and Remote Sensing. DOI
• A. Langlois, J. Bergeron, R. Brown, A. Royer, R. Harvey, A. Roy, L. Wang, N. Thériault. (2014). Evaluation of CLASS 2.7 and 3.5 Simulations of Snow Properties from the Canadian Regional Climate Model (CRCM4) over Québec, Canada*. Journal of Hydrometeorology. DOI
• Libo Wang, Murray MacKay, Ross Brown, Paul Bartlett, Richard Harvey, Alexandre Langlois. (2014). Application of Satellite Data for Evaluating the Cold Climate Performance of the Canadian Regional Climate Model over Québec, Canada. Journal of Hydrometeorology. DOI
• Nick Rutter, Mel Sandells, Chris Derksen, Peter Toose, Alain Royer, Benoit Montpetit, Alex Langlois, Juha Lemmetyinen, Jouni Pulliainen. (2014). Snow stratigraphic heterogeneity within ground‐based passive microwave radiometer footprints: Implications for emission modeling. Journal of Geophysical Research: Earth Surface. DOI
• Benoit Montpetit, Alain Royer, Alexandre Roy, Alexandre Langlois, Chris Derksen. (2013). Snow Microwave Emission Modeling of Ice Lenses Within a Snowpack Using the Microwave Emission Model for Layered Snowpacks. IEEE Transactions on Geoscience and Remote Sensing. DOI
• A. Roy, A. Royer, B. Montpetit, P. A. Bartlett, A. Langlois. (2013). Snow specific surface area simulation using the one-layer snow model in the Canadian LAnd Surface Scheme (CLASS). The Cryosphere. DOI
• A. Langlois, A. Royer, C. Derksen, B. Montpetit, F. Dupont, K. Goïta. (2012). Coupling the snow thermodynamic model SNOWPACK with the microwave emission model of layered snowpacks for subarctic and arctic snow water equivalent retrievals. Water Resources Research. DOI
• C. Derksen, S. L. Smith, M. Sharp, L. Brown, S. Howell, L. Copland, D. R. Mueller, Y. Gauthier, C. G. Fletcher, A. Tivy, M. Bernier, J. Bourgeois, R. Brown, C. R. Burn, C. Duguay, P. Kushner, A. Langlois, A. G. Lewkowicz, A. Royer, A. Walker. (2012). Variability and change in the Canadian cryosphere. Climatic Change. DOI
• Alexandre Roy, Alain Royer, Jean-Pierre Wigneron, Alexandre Langlois, Jean Bergeron, Patrick Cliche. (2012). A simple parameterization for a boreal forest radiative transfer model at microwave frequencies. Remote Sensing of Environment. DOI
• Florent Dupont, Alain Royer, Alexandre Langlois, Alicia Gressent, Ghislain Picard, Michel Fily, Patrick Cliche, Miroslav Chum. (2012). Monitoring the melt season length of the Barnes Ice Cap over the 1979–2010 period using active and passive microwave remote sensing data. Hydrological Processes. DOI
• C. Derksen, P. Toose, J. Lemmetyinen, J. Pulliainen, A. Langlois, N. Rutter, M.C. Fuller. (2012). Evaluation of passive microwave brightness temperature simulations and snow water equivalent retrievals through a winter season. Remote Sensing of Environment. DOI
• B. Montpetit, A. Royer, A. Langlois, P. Cliche, A. Roy, N. Champollion, G. Picard, F. Domine, R. Obbard. (2012). New shortwave infrared albedo measurements for snow specific surface area retrieval. Journal of Glaciology. DOI
• Alexandre Langlois, Alain Royer, Florent Dupont, Alexandre Roy, Kalifa Goita, G. Picard. (2011). Improved Corrections of Forest Effects on Passive Microwave Satellite Remote Sensing of Snow Over Boreal and Subarctic Regions. IEEE Transactions on Geoscience and Remote Sensing. DOI
• L. Brucker, A. Royer, G. Picard, A. Langlois, M. Fily. (2011). Hourly simulations of the microwave brightness temperature of seasonal snow in Quebec, Canada, using a coupled snow evolution–emission model. Remote Sensing of Environment. DOI
• Randall K. Scharien, Torsten Geldsetzer, David G. Barber, John J. Yackel, A. Langlois. (2010). Physical, dielectric, and C band microwave scattering properties of first‐year sea ice during advanced melt. Journal of Geophysical Research: Oceans. DOI
• A. Langlois, A. Royer, B. Montpetit, G. Picard, L. Brucker, L. Arnaud, P. Harvey-Collard, M. Fily, K. Goïta. (2010). On the relationship between snow grain morphology and in-situ near infrared calibrated reflectance photographs. Cold Regions Science and Technology. DOI
• A. Langlois, A. Royer, K. Goïta. (2010). Analysis of simulated and spaceborne passive microwave brightness temperatures using in situ measurements of snow and vegetation properties. Canadian Journal of Remote Sensing. DOI
• A. Langlois, J. Kohn, A. Royer, P. Cliche, L. Brucker, G. Picard, M. Fily, C. Derksen, J. M. Willemet. (2009). Simulation of Snow Water Equivalent (SWE) Using Thermodynamic Snow Models in Québec, Canada. Journal of Hydrometeorology. DOI
• Torsten Geldsetzer, Alexandre Langlois, John Yackel. (2009). Dielectric properties of brine-wetted snow on first-year sea ice. Cold Regions Science and Technology. DOI
• D. Isleifson, A. Langlois, D.G. Barber, L. Shafai. (2009). C-Band Scatterometer Measurements of Multiyear Sea Ice Before Fall Freeze-Up in the Canadian Arctic. IEEE Transactions on Geoscience and Remote Sensing. DOI
• R.J. Galley, M. Trachtenberg, A. Langlois, D.G. Barber, L. Shafai. (2009). Observations of geophysical and dielectric properties and ground penetrating radar signatures for discrimination of snow, sea ice and freshwater ice thickness. Cold Regions Science and Technology. DOI
• A. Langlois, R. Scharien, T. Geldsetzer, J. Iacozza, D.G. Barber, J. Yackel. (2008). Estimation of snow water equivalent over first-year sea ice using AMSR-E and surface observations. Remote Sensing of Environment. DOI
• A. Langlois, D. G. Barber. (2008). Advances in seasonal snow water equivalent (SWE) retrieval using <i>in situ</i> passive microwave measurements over first‐year sea ice. International Journal of Remote Sensing. DOI
• A. Langlois, T. Fisico, D. G. Barber, T. N. Papakyriakou. (2008). Response of snow thermophysical processes to the passage of a polar low‐pressure system and its impact on in situ passive microwave radiometry: A case study. Journal of Geophysical Research: Oceans. DOI
• Alexandre Langlois, David G. Barber. (2007). Passive microwave remote sensing of seasonal snow-covered sea ice. Progress in Physical Geography: Earth and Environment. DOI
• Byong Jun Hwang, Alexandre Langlois, David G. Barber, Timothy N. Papakyriakou. (2007). On detection of the thermophysical state of landfast first-year sea ice using in-situ microwave emission during spring melt. Remote Sensing of Environment. DOI
• Alexandre Langlois, C. J. Mundy, David G. Barber. (2007). On the winter evolution of snow thermophysical properties over land‐fast first‐year sea ice. Hydrological Processes. DOI
• A. Langlois, D.G. Barber, B.J. Hwang. (2007). Development of a winter snow water equivalent algorithm using in situ passive microwave radiometry over snow-covered first-year sea ice. Remote Sensing of Environment. DOI
• Alexandre Langlois, Alain Royer, Erwan Fillol, Anne Frigon, René Laprise. (2004). Evaluation of the snow cover variation in the Canadian Regional Climate Model over eastern Canada using passive microwave satellite data.

Autres contributions

Cours enseignés à l'UdeS

• GAE550 - Milieux polaires. (2025-2026). (3CR).
• GAE720 - Géomatique et géorisques. (2025-2026). (3CR).
• GAE724 - Essai en géomatique appliquée. (2025-2026). (6CR).
• GAE725 - Santé et sécurité en recherche sur le terrain. (2024-2026). (2CR).
• TEL701 - Physique de la télédétection. (2023-2026). (3CR).
• TEL725 - Télédétection. (2023-2026). (3CR).
• TEL901 - Séminaire de recherche I : physique de la télédétection et acquisition des images. (2023-2026). (3CR).
• TEL912 - Activités de recherche II : collecte et analyse des données. (2024, 2026). (15CR).
• TEL910 - Examen général. (2025). (6CR).
• TEL911 - Activités de recherche I : projet de thèse. (2025). (15CR).
• TEL913 - Activités de recherche III : rapport d'étape. (2025). (15CR).
• GAE705 - Géomatique pour la gestion des ressources naturelles. (2024). (3CR).
• GAT724 - Stage en milieu professionnel. (2024). (6CR).
• GAT804 - Mémoire. (2023-2024). (15CR).
• GAT805 - Présentation des résultats de recherche. (2023-2024). (9CR).
• ENV330 - Principes de géomatique et travaux pratiques. (2023). (3CR).
• GAT731 - Séminaire de travaux ou de lectures dirigés. (2023). (3CR).
• GMQ250 - Principes de télédétection. (2023). (4CR).
• GMQ714 - Télédétection. (2023). (4CR).
• TEL914 - Dépôt et soutenance de thèse. (2023). (30CR).

Présentations

• Alexandre Langlois. (2024). Advancing Snow Water Equivalent (SWE) Estimation: Sensitivity Testing of Dual Ku-Band Radar System. Eastern Snow Conference.
• Voglimacci-Stephanopoli, J.* Langlois, A., Lantuit, H., Sasseville, V.*, Wendleder, A., Stettner, S. (2020). Caractérisation de l'état du couvert nival arctique à haute résolution au moyen de TerraSAR-X (bande X): étude du cas Qikitaruk-Herschel (Yukon). Annual meeting: Centre d'études nordiques,. Canada.
• Sasseville, V.*, Gautier, C.*, Langlois, A., Théau, J. Johnson, C-A. (2020). Implementation of a habitat quality index for the Peary caribou using snow geophysical properties retrived from satellite remote sensing and modeling. Annual meeting: Centre d'études nordiques, Montreal. Canada.
• Blanchette, A.*, Madore, J.B.*, Langlois, A. Billecocq, P.*. (2020). Sensibilité du modèle SNOWPACK à la paramétrisation de la phase de précipitation dans un contexte de stabilité du couvert nival. Annual meeting: Centre d'études nordiques, Montreal. Canada.
• Gautier, C.*, Langlois, A., Johnson, C.-A., Sasseville, V.*, Neave, E. (2020). Study of habitat quality along Peary caribou's migratory routes, using a thermodynamic snow model and indigenous knowledge (IK). Annual meeting: Centre d'études nordiques, Montreal. Canada.
• Mavrovic, A.*, Roy, A., Lemmetyinen, J., Langlois, A. Sonnentag, O. (2020). Suivi des flux de carbone hivernaux en régions arctiques par télédétection. Annual meeting: Centre d'études nordiques, Montreal. Canada.
• Langlois, A., Johnson, C.-A., Dolant, C.*, Martineau, C.*, Brucker, L. Royer, A. (2019). An Overview of Monitoring Winter Extreme Events using Remote Sensing and Modeling in the Arctic: an Ecological Perspective for Ungulates Habitat Characterization. American Geophysical Union, San Francisco. États-Unis.
• D. Kramer*, J. Meloche, J.*, Langlois, A., Royer, A., Cliche, P., McLennan, D. (2019). Describing Arctic snow and ice with a small Ka-band radar. Eastern Snow Conference, Lake Morey. Canada.
• Meloche, J.*, Kramer, D.*, Langlois, A., Royer, A. (2019). High resolution snow depth mapping with Unmanned Aerial Vehicle (UAV) using Structure-from-Motion (SfM) and kinematic dGPS: Comparison of two methods for arctic application. Eastern Snow Conference, Lake Morey. États-Unis.
• Holtzman, N., Anderegg, L.D., Kraatz, S., Mavrovic, A.*, Roy, A., Sonnentag, O., Pappas, C., Cosh, M.H., Steiner, N., Langlois, A., Lakhankar, T., Colliander, A., Konings, A.G. (2019). Microwave Radiometry for Remote Sensing of Plant Water Status Dynamics: Stand-Scale Evaluation in a Temperate Deciduous Forest. American Geophysical Union, San Francisco. États-Unis.
• Couture, G.*, Langlois, A., Howell, S., Montpetit, B. (2019). Spatiotemporal polynya formation trends in the Canadian Arctic Archipelago using sea ice charts from 1968 onwards. Eastern Snow Conference, Lake Morey. États-Unis.
• C. Vuyovich A. Langlois A. Roy T. Letcher J. Jacobs J. Parno S. Kraatz Z. Courville E. Cho. (2018). 2018 Hubbard Brook Field Experiment: Snow observations in a north-eastern U.S. forested region. Eastern Snow Conference, Washington. États-Unis.
• A. Langlois, C. Dolant*, B. Montpetit, L. Brucker, A. Roy, A. Royer. (2018). Changing Arctic Snow Cover: Rain-on-Snow and Ice Layer Detection. International Symposium on Cryosphere and Biosphere, Kyoto. Japon.
• D. Kramer* J. Meloche* A. Langlois D. McLennan. (2018). Developing a low-cost DIY unmanned-aerial-vehicle (UAV) for arctic snow and ice monitoring. ArcticNet, Ottawa. Canada.
• G. Couture* A. Langlois S. Howell B. Montpetit. (2018). Development of a polynya climatology in the Canadian Arctic Archipelago using RADARSAT imagery from 1997 to 2018. ArcticNet, Ottawa. Canada.
• J. Voglimacci* A. Langlois H. Lantuit. (2018). Development of a snow depth mapping approach using radar satellite data and multisource in-situ data. ArcticNet, Ottawa. Canada.
• J. Meloche* D. Kramer* A. Langlois. (2018). High resolution mapping of snow depth using UAS and kinematic dGPS in the Canadian Arctic. ArcticNet, Ottawa. Canada.
• V. Sasseville* A. Langlois J. Théau A. Royer. (2018). Implementation of a habitat quality index for the Peary caribou using snow geophysical properties retrieved from satellite remote sensing and modeling. ArcticNet, Ottawa. Canada.
• A. Royer F. Larue C. Vargel A. Roy A. Langlois V. Vionnet G. Picard E. Cosme. (2018). Improved subarctic and arctic SWE retrieval using passive microwave over Canada. POLAR 2018, Davos. Suisse.
• S. Levasseur* A. Langlois K. Brown. (2018). Modeling snowmelt runoff and analysis of its impact on geochemical elements transport in the Arctic. ArcticNet, Ottawa. Canada.
• D. Kramer * A. Langlois A. Royer D. McLennan. (2018). Retrieving ice parameters with a UAV-mounted RADAR. POLAR 2018, Davos. Suisse.
• A. Roy A. Langlois C. Dolant* L. Brucker A. Royer. (2018). SnowEx 2017 In-situ passive microwave measurements: analysis of wet snow microwave emission. International Geoscience and Remote Sensing Symposium, Valencia. Espagne.
• C. Gautier* A. Langlois C.-A. Johnson C. Martineau*. (2018). Study of habitat quality and migratory patterns of Peary caribou (Rangifer tarandus pearyi) using a thermodynamic model of snow and traditional knowledge. ArcticNet, Ottawa. Canada.
• L. Brucker A. Langlois and co-authors. (2017). A first overview of SnowEx ground-based remote sensing activities. IEEE International Geoscience and Remote Sensing Symposium, Fort Worth. États-Unis.
• C. Martineau* A. Langlois C.-A. Johnson E. Neave F. Ouellet*. (2017). Adaptation and validation of the SNOWPACK model to Arctic conditions. Eastern Snow Conference, Ottawa. Canada.
• A. Langlois. (2017). Changements climatiques en Arctique: un regard sur les conditions nivales dans un contexte d'habitat du caribou de Peary. Ouranos seminar series, Montreal. Canada.
• C. Dolant* A. Langlois L. Brucker A. Royer A. Roy B. Montpetit. (2017). Detection and evolution of rain-on-snow events in the Canadian Arctic Archipelago using passive microwave radiometry. Eastern Snow Conference, Ottawa. Canada.
• J.B. Madore* A. Langlois S. van Wierts S. Borghini. (2017). Identification of snow accumulation zones and cornices using LiDAR Unmanned Aerial Vehicles (UAVs) in an avalanche forecasting context: A case study. Eastern Snow Conference, Ottawa. Canada.
• A. Langlois, A. Roy, C. Derksen, J. Lundquist, P. Marsch, R. Kelly, J. Pomeroy, A. Royer, S. Bélair, C. Garnaud, M. Carrera, L. Brucker. (2017). Overview of SnowEx 2017 in-situ passive microwave measurements : a context for SWE assimilation. SnowEx scientific meeting, Longmont. États-Unis.
• A. Langlois. (2017). Snow Depth retrieval via Unmanned Aerial Vehicles (UAV). Eastern Snow Conference, Ottawa. Canada.
• A. Langlois. (2017). Winter extreme events in the arctic: a focus on snow conditions and Peary caribou. Seminar, Vancouver. Canada.
• A. Langlois. (2016). 2nd European Snow Science Winter School. Eastern Snow Conference, Columbus. États-Unis.
• A. Roy P. Toose C. Derksen A. Royer A. Mavrovic A. Berg L. Arnold M. Williamson J. Lemmetyienen A. Langlois E. Teltock O. Sonnentag. (2016). Analysis of L-band brightness temperatures response to freeze/thaw in two prairie environments from surface-based radiometer measurements. IEEE International Geoscience and Remote Sensing Symposium, Beijing. Chine.
• A. Royer N. Marchand C. Ottlé G. Krinner A. Roy A. Langlois. (2016). Continuous ground surface temperature measurements over the Arctic: a key parameter for the monitoring of permafrost evolution. European Space Agency Earth Observation and Cryosphere Science, Prague. République tchèque.
• A. Langlois, C.-A. Johnson, B. Montpetit, A. Royer, A. Richards, E. Neave, C. Dolant*, A. Roy, G. Arhonditsis, D.K. Kim, S. Kaluskar, L. Brucker. (2016). Detection of rain-on-snow (ROS) events and ice layer formation using passive microwave radiometry: A context for Peary caribou habitat in the Canadian Arctic. Eastern Snow Conference, Colombus. États-Unis.
• C. Dolant* A. Langlois L. Brucker B. Montpetit A. Royer. (2016). Detection of rain-on-snow events in the Canadian Arctic archipelago between 1980-2014 using passive microwave radiometry. Eastern Snow Conference, Colombus. États-Unis.
• J.B. Madore * A. Langlois. (2016). Evaluation of SNOWPACK metamorphism and microstructure in a Canadian context: A case study for snow stability assessment. International Snow Science Worksop, Breckenridge. États-Unis.
• A. Langlois. (2016). Le couvert nival arctique en changement : une odyssée de la modélisation à la télédétection. Colloque Annuel du Centre d'Études Nordiques, Trois-Rivières. Canada.
• O. St-Jean Rondeau * A. Royer A. Roy A. Langois J.B. Madore*. (2016). Parameterization of snow microstructure for passive microwave radiometry. Eastern Snow Conference, Colombus. États-Unis.
• F. Larue A. Royer D. De Sève A. Langlois A. Roy O. St-Jean Rondeau*. (2016). Simulations of a Canadian snowpack brightness temperatures using SURFEX-Crocus. European Geosciences Union Spring meeting, Vienna. Autriche.
• A. Langlois, A. Royer, B. Montpetit, A. Roy. (2016). Snow grain size and shape distributions in northern Canada. American Geophysical Union, San Francisco. États-Unis.
• A. Langlois. (2016). Update on snow research in Sherbrooke. Snow workshop, Toronto. Canada.

Activités professionnelles

• UArctic. Rovaniemi, Lapland, Finlande. (2025-).
• The Cryosphere. Associate editor. (2020-).
• International Association of Cryospheric Sciences. Innsbruck, Autriche. (2018-2019).
• Poste d'invité. Université Paul-Valéry Montpellier III. Département de Géographie - Aménagement. Invited professor. Montpellier, Occitanie, France. (2013).
• Centre d'applications et de recherches en télédétection (CARTEL). Sherbrooke, QC, Canada. (2012-).