Langlois, Alexandre

Professeur, Faculté des lettres et sciences humaines
FLSH Géomatique appliquée

Coordonnées

Courriel


819-821-8000, poste 65690

Diplômes

(2011) Post-doctorate (Postdoc fellow). Université de Sherbrooke.

(2008) Development of a snow water equivalent algorithm over first-year sea ice using passive microwave radiometry. Doctorate (Doctor of Philosophy). The University of Manitoba.

(2003) Étude de la variation spatio-temporelle du couvert nival par télédétection micro-ondes passives et validation du modèle régional du climat du Canada (MRCC). Master's Thesis (Master of Science - Masters). Université de Sherbrooke.

(2001) Bachelor's (Bachelor of Science). Université de Sherbrooke.

Titres de compétence

(2014) Niveau 1 Opération d'avalanche - Professionnel. Canadian Avalanche Association.

(2013) Cours de sécurité en avalanche - CSA1. Canadian Avalanche Association.

Expérience académique

(2017) Professor. Université de Sherbrooke.

(2016) Lecturer. European Snow Science Winter School.

(2018) Lecturer. CUAHSI Swno winter school.

(2015) Lecturer. European Snow Science Winter School.

Présentation

Sujets de recherche

Geomatics, Hydrological Cycle and Reservoirs, Ice and Snow, Natural Risk Control, Natural Risks.

Disciplines de recherche

Earth Science, Water and Environment.

Mots-clés

Arctic, Avalanches, Climatology, Modeling, Passive microwaves, Radar, Remote Sensing, Sea Ice, Snow, Unmanned aerial vehecles (UAV).

Intérêts de recherche

My research interests focus on winter extreme events such as rain-on-snow, heat waves and extreme precipitations. I also focus on the development of remote sensing methods to quantifiy surface changes of snow, sea ice and glacier mass balance.

Langues parlées et écrites

Anglais, Français

Prix et distinctions

  • Bronze Medal from the Canadian Remote sensing Society 2017 / Médaille de bronze de la Société canadienne de télédétection 2017. Canadian Remote Sensing Society. (Prize / Award).

Financement

Grant. (Under Review). Principal Applicant. Multidisciplinary Observatory for Arctic Climate Change and Extreme Events Monitoring in the Kitikmeot region. Polar Knowledge Canada. 449880 $ (2020-2023).

Grant. (Under Review). Principal Applicant. Operational snow simulations in alpine terrain in a context of climate change. National Geographic Society. Extreme Environments: Alpine Climate Change. 78200 $ (2020-2021).

Grant. (Awarded). Principal Applicant. Modelling future changes in snow characteristics in the Canadian Arctic to identify priority areas for Peary, Dolphin and Union caribou and Barren ground caribou. Environment Canada. Grant and Contribution. 120000 $ (2018-2021).

Grant. (Awarded). Principal Investigator. Operational snow simulations for avalanche forecasting in Canada: implementation of the SNOWPACK model into the Avalanche Forecasting System. Santé publique Canada. SAR New Initiatives Fund. 333250 $ (2018-2021).

Grant. (Awarded). Principal Applicant. Amélioration des Prévisions de l’Impact de l'évolution du Climat Nordique sur la cryosphère terrestre (APIC-Nord). Conseil franco-québécois de coopération universitaire (CFQCU). Conseil franco-québécois de coopération universitaire (CFQCU). 25000 $ (2017-2020).

Grant. (Awarded). Principal Applicant. 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. Polar Knowledge Canada. 439053 $ (2017-2020).

Grant. (Awarded). Principal Applicant. 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 - Nature et technologies (FRQNT). Projet équipe. 190738 $ (2017-2020).

Contract. (Completed). Principal Applicant. Geographic Information System programming and data management to support the Lake Winnipeg Basin initiative. Environment and Climate Change Canada. Research contract. 23500 $ (2017-2018).

Grant. (Completed). Co-applicant. Development of an autonomous radar for remotely measuring snow and ice thickness over lakes and rivers. Natural Sciences and Engineering Research Council of Canada (NSERC). Collaborative Research and Development Grants. 63300 $ (2016-2017).

Grant. (Completed). Principal Applicant. Identification of snow accumulation zones and cornices using LiDAR Unmanned Aerial Vehicles (UAVs) in an avalanche forecasting context. Natural Sciences and Engineering Research Council of Canada (NSERC). Engage. 24567 $ (2017).

Contract. (Completed). Principal Applicant. Downscaling SNOWPACK model outputs to 1km resolution in support of Peary caribou habitat modeling. Environment Canada. Research contract. 21500 $ (2016-2017).

Grant. (Completed). Principal Applicant. Développement d’une plateforme numérique pour l’utilisation d’un modèle de simulation numérique du couvert nival dans un contexte académique. Université de Sherbrooke. Fonds d'innovation pédagogique. 8000 $ (2016-2017).

Contract. (Completed). Principal Applicant. Evaluation of a snow model with snow depth based on UAV Acquisitions in Support of Flood Plain Characterization. Natural Resources Canada. Research contract. 22000 $ (2016-2017).

Contract. (Completed). Co-applicant. Investigation of potential factors contributing to Barren Ground Caribou die-off on Prince Charles Island using remotely sensed indices of snow condition. Environment Canada. Research contract. 8780 $ (2017).

Contract. (Completed). Principal Applicant. High resolution snow water equivalent and runoff modeling over the Bay of Quinte watershed, Lake Ontario, Canada. Canadian Centre for Inland Waters. Research contract. 23500 $ (2016).

Grant. (Completed). Co-applicant. 32 ans de base de données de zonation du pergélisol dérivée d'un indice satellitaire. Centre d'études nordiques. Gradient nordique. 6800 $ (2016).

Publications

Articles de revue

  • Vargel., C.*, Royer, A., St-Jean rondeau, O.*, Picard, G., Roy, A., Sasseville, V.* and Langlois, A. (2019). Arctic and Subarcticsnow microstructure analysis for microwave brightness temperature simulations. Remote Sensing of Environment, (Submitted).
  • D. Kramer*, J. Meloche*, A. Langlois, D. McLennan, C. Gauthier-Barrette*, A. Royer, P. Cliche. (2019). Designing a DIY-UAV forarctic research purposes and proving its capabilities by retrieving snow depthvia structure-from-motion. Polar Knowledge: Aqhaliat, (Submitted).
  • S. Kaluskar*, A. B.-Richards, C.A. Johnson, Y. He, A. Langlois, D.K. Kim, G. Arhonditsis. (2019). Development of a model ensemble to predict Pearycaribou populations in the Canadian Arctic Archipelago. Ecoshere, (Accepted).
  • A. Roy P. Toose A. Mavrovic C. Pappas A. Royer C. Derksen A. Berg T. Rowlandson M. El-Amine W. Helgason A. Barr A. Black A. Langlois O. Sonnentag. (2019). L-Band response tofreeze/thaw in a boreal forest stand from ground and tower-based radiometerobservations. Remote Sensing of Environment, (Submitted).
  • Langlois, A., Royer, A., Montpetit, B., Roy, A. and Durocher, M.*. (2019). Snow grain size andshape distributions in northern Canada. Frontiers in Earth Science, (Submitted).
  • Mavrovic, A., Madore, J.-B., Langlois, A., Royer, A. and Roy, A. (2019). Snow liquid watercontent measurement using an open-ended coaxial probe (OECP). Cold Regions Science and Technology, (Submitted).
  • F. Meloche* F. Gauthier A. Langlois. (2019). Spatial variability of snowpack properties: comparisonbetween coastal and valley avalanche-prone slopes in northern Gaspésie, Canada. Physical Geography, (Submitted).
  • Meloche, F.*, Gauthier, F., Langlois, A. and Boucher, D. (2019). The Northeastern Appalachian Rainy Continental snow climate: A snow climate for the GaspéPeninsula, Québec, Canada. Cold Regions Science and Technology, (Submitted).
  • M. Prince*, A. Roy, A. Royer, A. 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, 231, (Published).
  • Caroline Dolant* Benoit Montpetit Alexandre Langlois Ludovic Brucker Olga Zolina Cheryl-Ann Johnson Alain Royer Paul Smith. (2018). Assessment of the barren-ground caribou die-off during winter 2015-2016 using passive microwave observations. Geophysical Research Letters, 45, (Published).
  • Madore, J.-B., Langlois, A. Côté, K. (2018). Evaluation of the SNOWPACKmodel's metamorphism and microstructure in a Canadian context: A case study. Physical Geography, (Published).
  • Montpetit, B., Royer, A., Roy, A. and Langois, A. (2018). In-situ passive microwave emission model parameterization of sub-arctic frozen organic soils. Remote Sensing of Environment, 205, 112-118. (Published).
  • F. Domine, G. Picard, S. Morin, M. Barrere, J.-B. Madore*, A. Langlois. (2018). 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, 11, (Published).
  • Lyu, H., McColl, K.A., Li, X., deriksen, C., Berg, A., Black, T.A., Euskirchen, E., Loranty, M., Pulliainen, J., Rautiainen, K., Rowlandson, T., Roy, A., Royer, A., Langlois, A., Stephens, J., Liu, H., Entekhabi, D. (2018). SMAP freeze/thaw product using categorical triple collocation. Remote sensing of Environment, 205, 329-337. (Published).
  • N. Marchand, A. Royer, G. Krinner, A. Roy, A. Langlois. (2018). Snow-covered ground-temperature retrieval in Canadian arctic permafrost areas using a landsurface scheme informed with satellite remote sensing data. Remote sensing, 10(11), 1703-1721. (Published).
  • Joshua King Chris Derksen Peter Toose Alex Langlois Chris Larsen J. Lemmetyinen Phil Marsh Benoit Montpetit Alex Roy Nick Rutter Matthew Sturm. (2018). The influence of snow microstructure on dual-frequency radar measurements in a tundra environment. Remote sensing of environment, 215, 242-254. (Published).
  • Busseau, B.-C.*, Royer, A., Langlois, A., Barrère, M. And Domine, F. (2017). Analysis of the Interactions between Snow and Vegetation over low Arctic – Subarctic transition (North Eastern Canada). Physical Geography, 38, 159-175. (Published).
  • Royer A., A. Roy, B. Montpetit, O. Saint-Jean-Rondeau*, G. Picard, L. Brucker, and A. Langlois. (2017). Comparison of commonly-used microwave radiative transfer models for snow remote sensing. Remote Sensing of Environment, 190, 247-259. (Published).
  • Langlois, A., Johnson, C.-A., Montpetit, B., Royer, A., Blukacz-Richards, E.A., Neave, E., Dolant, C.*, Roy, A., Arhonditsis, G., Kim, D.-K.F, Kaluskar, S., and Brucker, L. (2017). Detection of rain-on-snow (ROS) events and ice layer formation using passive microwave radiometry: A context for the Peary caribou habitat in the Canadian arctic. Remote Sensing of Environment, 189, 84-95. (Published).
  • Dolant, C.*, Langlois, A., Brucker, L., Royer, A., Roy, A., Montpetit, B. (2017). Meteorological inventory of Rain-On-Snow events and detection assessment in the Canadian Arctic Archipelagousing microwave radiometry. Physical Geography, (Published).
  • Chris Derksen, Xiaolan Xu, R. Scott Dunbar, Andreas Colliander, Youngwook Kim, John Kimball, Andrew Black, Eugenie Euskirchen, Alexandre Langlois, Mike Loranty, Philip Marsh, Kimmo Rautiainen, Alexandre Roy and Alain Royer. (2017). Retrieving landscape freeze/thaw state from Soil Moisture Active Passive (SMAP) radar and radiometermeasurements. Remote Sensing of Environment, 194, 48-62. (Published).
  • Côté, K.*, Madore, J.-B.*, and Langlois, A. (2017). Uncertainties in the SNOWPACK multilayer snow model for a Canadian avalanche context: sensitivity to climatic forcing data. Physical Geography, 38(2), 124-142. (Published).
  • Larue, F., Royer, A., De Sève, D., Langlois, A., Roy, A. and Brucker, L. (2017). Validation of GlobSnow-2 snow water equivalent over Eastern Canada. Remote Sensing of Environment, 194, 264-277. (Published).
  • Dolant, C.*, Langlois, A., Montpetit, B., Brucker, L., Roy, A., and Royer, A. (2016). Empirical development of a rain-on-snow detection algorithm using passive microwave radiometry. Hydrological Processes, 13 pages. (Published).
  • Papasodoro, C.*, Royer, A., Langlois, A. and Berthier, E. (2016). Potential of RADARSAT-2 stereo radargrammetry for the generation of glacier digital elevation models. Journal of Glaciology, 11 pages. (Published).
  • Ouellet, F.*, Langlois, A., Johnson, C.-A., Richards, A. and Royer, A. (2016). Spatialization of the SNOWPACK Snow Model in the Canadian Arctic for Peary Caribou Winter Grazingconditions Assessment. Physical Geography, 17 pages. (Published).
  • Papasodoro, C.*, Berthier, E., Royer, A., Zdanowic z, C. And Langlois, A. (2015). Area, elevation and mass changes of the two southernmost ice caps of the Canadian Arctic Archipelagobetween 1952 and 2014. The Cryosphere, 9, 1535-1550. (Published).
  • Roy A. Royer A., Derksen, C., Brucker, L., Langlois, A., Mialond, A., and Kerr, Y. (2015). Evaluation of Spaceborne L-band Radiometer Measurements for Terrestrial Freeze/Thaw Retrievals in Canada. IEEE selected topics in applied earth observations and remote sensing, 8(9), (Published).
  • Roy, A., Royer, A., St-Jean-Rondeau, O.*, Montpetit, B., Picard, G., Marchand, N., and Langlois, A. (2015). Microwave snow emission modeling uncertainties in boreal and subarctic environments. The Cryosphere, 10, 623-638. (Published).
  • Langlois, A., Bergeron, J., Brown, R., Royer, A., Harvey, R., Roy, A., Wang, L. and Thériault, N.*. (2014). Evaluation of CLASS 2.7 and 3.5 simulations of snow cover from the Canadian Regional Climate Model (CRCM4) over Québec, Canada. Journal of Hydrometeorology, 15, 1325-1343. (Published).
  • Dupont, F., Picard, G., Royer, A., Fily, M., Langlois, A., Roy, A., and Champollion, N. (2014). Modeling the microwave emission of bubbly ice; Applications to blue ice and superimposed ice in the Antarctic and Arctic. IEEE Transactions on Geosciences and Remote Sensing, 52(10), 6639-6651. (Published).
  • Rutter,N., Sandells, M., Derksen, C., Toose, P., Royer, A., Montpetit, B., Langlois, A., Lemmetyinen, J., and Pulliainen, J. (2014). Snow stratigraphic heterogeneity within ground-based passive microwave radiometer footprints: implications for emission modeling. Journal of Geophysical Research, 119(3), 550-565. (Published).
  • Wang, L., MacKay, M., Brown, R., Harvey, R., and Langlois, A. (2013). Application of satellite data for evaluating the cold climate performance of the Canadian Regional Climate model over Québec, Canada. Journal of Hydrometeorology, 15(2), 614-630. (Published).
  • Roy, A., Picard, G., Royer, A., Montpetit, B., Dupont, F., Langlois, A., and Derksen, C. (2013). Snow brightness temperature simulations driven by measurements of the specific surface area of snow grains. IEEE Transactions on Geoscience and Remote Sensing, 51(9), 4692-4704. (Published).
  • Montpetit B., Royer, A., Roy, A., Langlois, A. and Derksen, C. (2013). Snow microwave emission modeling of ice lenses within the snowpack using the Microwave Emission Model for Layered Snowpacks (MEMLS). IEEE Transactions on Geosciences and Remote Sensing, 51(9), 4705-4717. (Published).
  • Roy, A., 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, 7, 961-975. (Published).

Livres

  • Alexandre Langlois. (2015). Applications of the PR series radiometers for cryospheric and soil moisture research (RDXPUB02V1). United States : Radiometrics Corporation. (Published).

Articles de magazine

  • Langlois, A. and Royer, A. (2009). Variability and Change in the Canadian Cryosphere. Makivik Magazine. 86, 4-5.
  • Langlois A., Thomson, B., Oakes J., Imrie D. and Barber D.G. (2007). Community Based Monitoring (CBM), Sea Ice Climate Variability and Change: An Update. ArcticNet Newsletter.

Articles de conférence

  • Alexandre Roy; Peter Toose; Chris Derksen; Alain Royer; Alex Mavrovic; Aaron Berg; Lauren Arnold; Matthew Willamson; Tracy Rowlandson; Juha Lemmetyinen; Alexandre Langlois; Erica Tetlock; Oliver Sonnentag. (2016). Analysis of L-Band brightness temperatures response to freeze/thaw in two prairie environments from surface-based radiometer measurements. 2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), (Published).
  • Jean-Benoit Madore*, Alexandre Langlois and Kevin Cote*. (2016). Evaluation of SNOWPACK Metamorphism and Microstructure in a Canadian Context: a Case Study for Snow Stability Assessment. International Snow Science Workshop proceedings, 959-964. (Published).
  • Alexandre Roy; Alain Royer; Chris Derksen; Alexandre Langlois; Oliver Sonnentag. (2016). Monitoring boreal and arctic freeze/thaw with the first year of SMAP brightness temperatures. 2016 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad, 82-84. (Published).
  • B-C. BUSSEAU*, A. ROYER, A. LANGLOIS. (2015). Analysis of the Interactions Between Snow and Shrub Ecosystem of the Taiga in Nunavik. Eastern Snow Conference Proceedings, 211-215. (Published).
  • KEVIN CÔTÉ* JEAN-BENOIT MADORE* AND ALEXANDRE LANGLOIS. (2015). Assessing accuracy of simulated and spatialized snow profiles from SNOWPACK and Alpine3D driven by in-situ and predicted meteorological data for avalanche forecasting in Canada. Eastern Snow Conference Proceedings, 145-151. (Published).
  • J.B. MADORE*, K. COTÉ* AND A. LANGLOIS. (2015). Improvement of snow grain simulations from the multi-layered thermodynamic snow model SNOWPACK: implications to avalanche risk assessment. Eastern Snow Conference Proceedings, 152-158. (Published).
  • Alexandre Roy; Alain Royer; Benoit Montpetit; Alexandre Langlois. (2015). Microwave snow emission modeling of boreal forest environments. 2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 754-757. (Published).
  • FANNY LARUE, ALAIN ROYER, DANIELLE DE SÈVE, LUCIE LOZAC'H*, ALEXANDRE LANGLOIS, ALEXANDRE ROY AND CHRIS DERKSEN. (2015). Preliminary validation analysis of the GlobSnow2 database over Eastern Canada. Eastern Snow Conference Proceedings, 129-131. (Published).
  • OUELLET, F.*, LANGLOIS, A., JOHNSON, C.-A. AND RICHARDS, A. (2015). Spatialization of the SNOWPACK Snow Model in the Canadian Arctic for Peary Caribou Winter Grazing conditions Assessment. Eastern Snow Conference Proceedings, 34-38. (Published).
  • Côté K., Madore*, J-B* and Langlois, A. (2014). Evaluating the Potential of Using Snowpack and Alpine3D Simulations in Three Canadian Mountain Climates. International Snow Science Workshop proceedings, 420-424. (Published).
  • Jean-Benoit Madore*, Kevin Coté* and Alexandre Langlois. (2014). Improvement of Snow Grain Simulations by the Multi-Layered Thermodynamic Snow Model SNOWPACK: Implications to Avalanche Risk Assessment. International Snow Science Workshop proceedings, 570-574. (Published).
  • Langlois, A., and Royer, A. (2013). Improving Snow Properties Retrievals Thermodynamic Snow Models and Satellite Remote Sensing. International Snow Science Workshop proceedings, 994-996. (Published).

Autres contributions

Cours enseignés

  • Changements climatiques des régions polaires: outils et enjeux. (2015-03-03 à 2015-04-30).
  • Géomatique de la gestion intégrée des eaux. GAE707. Niveau : Graduate. (3CR).
  • Géomatique et géodéveloppement durable. GAE703. (3CR).
  • Géomatique et géorisques. GAE720. (3CR).
  • La neige. GEO652. (3CR).
  • Principes de géomatique et travaux pratique. ENV330. Niveau : Undergraduate. (3CR).
  • Télédétection avancée. GMQ603. Niveau : Undergraduate. (2CR).
  • Télédétection optique et radar. GMQ708. Niveau : Graduate. (3CR).

Gestion d'évènements

  • Chair local organization. (2018). Réunion annuelle du Centre d'études nordiques. (Workshop).
  • Co-chair. (2016). NASA snow remote sensing workshop. (Workshop).
  • Chair - organisation locale. (2015). Eastern Snow Conference. (Conference).
  • Chair. (2015). NASA snow remote sensing school. (Course).
  • Président. (2014). Eastern Snow Conference. (Conference).

Activités de collaboration internationale

  • Co-investigator. (2019-2022). United Kingdom. Participating in a major UK-Canada collaboration call from the UK government on arctic scientific activities.
  • Co-investigator. (2019-2021). Sweden. Collaboration between U. of Sherbrooke and U. of Uppsala on studying black carbon impacts from forest fires on snow.
  • Principal investigator. (2017-2021). United States. Principal investigator on a NASA ROSES project. Project entitled:Integration of NASA SnowEx Measurements with a LandSurface Data Assimilation System.
  • Principal investigator. (2015-2020). France. Collaboration France-Québec funded project on passive microwave radiometry in polar regions.
  • Co-investigator. (2013-2019). Switzerland. International snow grain size measurements group, workshop meetings every second year since 2014.
  • Co-investigator. (2014-2017). United States. Satellite rain-on-snow event detection: a new Earth Observation Satellite product. Project submitted and funded through NASA. L. Brucker is principal investigator of this effort.

Présentations

  • D. Kramer*, J. Meloche, J.*, Langlois, A., Royer, A., Cliche, P. and McLennan, D. (2019). Describing Arctic snow and ice with a small Ka-band radar. Eastern Snow Conference. Lake Morey, United States.
  • Meloche, J.*, Kramer, D.*, Langlois, A. and 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, United States.
  • Couture, G.*, Langlois, A., Howell, S. and Montpetit, B. (2019). Spatiotemporal polynya formation trends in the Canadian Arctic Archipelago using sea ice charts from 1968 onwards. Eastern Snow Conference. Lake Morey, United States.
  • 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, United States.
  • 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, Japan.
  • 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, Switzerland.
  • 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, Switzerland.
  • 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, Spain.
  • 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.
  • 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.
  • 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, United States.
  • 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, United States.
  • 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, United States.
  • 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, China.
  • 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, Czech Republic.
  • 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, United States.
  • 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, United States.
  • 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, United States.
  • 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, United States.
  • 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, Austria.
  • A. Langlois, A. Royer, B. Montpetit, A. Roy. (2016). Snow grain size and shape distributions in northern Canada. American Geophysical Union. San Francisco, United States.
  • A. Langlois. (2016). Update on snow research in Sherbrooke. Snow workshop. Toronto, Canada.
  • B.C. Busseau* A. Royer A. Langlois. (2015). Analysis of the Interactions Between Snow and Shrub Ecosystem of the Taiga in Nunavik. Eastern Snow Conference. Sherbrooke, Canada.
  • K. Côté * J.-B. Madore* A. Langlois. (2015). Assessing accuracy of simulated and spatialized snow profiles from SNOWPACK and Alpine3D driven by insitu and predicted meteorological data for avalanche forecasting in Canada. Eastern Snow Conference. Sherbrooke, Canada.
  • A. Langlois, A. Royer, A. Roy, O. St-jean Rondeau, B. Montpetit, F. Larue, C. Dolant. (2015). Avancées dans l’étude de la télédétection micro-onde du couvert nival. Congrès de l'Association québécoise de télédétection. Québec, Canada.
  • A. Langlois, C. Dolant*, F. Ouellet*, L. Brucker, A. Richards, C.-A. Johnson, A. Royer. (2015). Changing arctic snow cover : rain-on-snow detection and caribou grazing conditions in Canada. IEEE Geoscience and Remote Sensing Society meeting. Milan, Italy.
  • J.-B. Madore K. Côté A. Langlois. (2015). Improvement of snow grain simulations from the multi-layered thermodynamic snow model SNOWPACK: implications to avalanche risk assessment. Eastern Snow Conference. Sherbrooke, Canada.
  • A. Langlois, K. Coté*, J.-B. Madore*. (2015). Improving snow stability prediction through improved microstructure simulations. Canadian Avalanche Association annual meeting. Penticton, Canada.
  • A. Langlois. (2015). La vérité sur les changements climatiques dans le Nord: enjeux environnementaux, sociaux, économiques et géopolitiques. Conférences de l'UTA. Sherbrooke, Canada.
  • A. Roy A. Royer B. Montpetit A. Langlois. (2015). Microwave snow emission modeling of boreal forest environments. IEEE Geoscience and Remote Sensing Society. Milan, Italy.
  • F. Larue* A. Royer D. de Sève L. Lozac'h* A. Langlois A. Roy C. Derksen. (2015). Preliminary validation analysis of the GlobSnow2 database over Eastern Canada. Eastern Snow Conference. Sherbrooke, Canada.
  • A. Langlois, B. Montpetit, C. Dolant*, L. Brucker, F. Ouellet, C.-A. Johnson, A. Richards, A. Roy, A. Royer. (2015). Rain-on-snow and ice layer formation detection using passive microwave radiometry: An arctic perspective. American Geophysical Union. San Francisco, United States.
  • A. Roy P. Toose C. Derksen A. Royer A. Berg L. Arnold M. Williamson T. Rowlandson A. Langlois B. Teltock. (2015). Response of L-band brightness temperatures to prairie soil and snow properties from surface-based radiometer measurements. IEEE Geoscience and Remote Sensing Society. Milan, Italy.
  • C. Papasodoro* A. Royer A. Langlois E. Berthier. (2015). SAR RADARSAT-2 and optical Pléiades stereo imagery for monitoring the melt of Baffin Island ice caps (Nunavut, Canada). Eastern Snow Conference. Sherbrooke, Canada.
  • A. Langlois. (2015). Satellite detection of rain-on-snow events and ice layers using passive microwave radiometry: a habitat perspective. Landscape Science and Technology Workshop. Ottawa, Canada.
  • F. Ouellet* A. Langlois C.-A. Johnson A. Richards. (2015). Spatialization of the SNOWPACK Snow Model in the Canadian Arctic for Peary Caribou Winter Grazing conditions assessment. Eastern Snow Conference. Sherbrooke, Canada.
  • A. Langlois. (2015). Spatialization of the SNOWPACK model in the Canadian Arctic for Peary caribou winter grazing conditions assessment. Landscape Science and Technology Workshop. Ottawa, Canada.
  • F. Ouellet* A. Langlois C.-A. Johnson A. Richards. (2015). Spatialization of the SNOWPACK snow model in the Canadian Arctic for Peary caribou winter grazing conditions assessment. Canadian Meteorological and Oceanographic Society. Whistler, Canada.
  • A. Langlois. (2015). Winter extreme events in the arctic: a focus on snow conditions and Peary caribou. Séminaire du Laboratoire de Glaciologie et Géophysique de l'environnement (LGGE), Université Joseph-Fourier, Grenoble. Grenoble, France.
  • A. Langlois. (2015). Étudier la neige à l’échelle globale: pourquoi et comment?. Conférence CEN. Rimouski, Canada.
  • A. Royer B. Montpetit A. Langlois. (2014). A Short-Wave Infrared Camera (SWIR cam) to retrieve the snow grain SSA and the snowpack stratigraphy. Intercomparison of Snow Grain Size Measurements Workshop. Davos, Switzerland.
  • A. Royer S. Rodrigue* A. Langlois. (2014). Analysis of the joint snow and ecosystem evolutions in Nunavik tundra and taiga areas (Québec Canada) over the last 35 years using satellite data. Arctic Change 2014. Quebec, Canada.
  • A. Royer A. Roy B. Montpetit A. Langlois. (2014). Coupling the Canadian Land Surface Scheme to a microwave model to simulate the snow microwave brightness temperature under boreal forest. Workshop on Microstructure in Snow Microwave Radiative Transfer MICROSNOW. Reading, United Kingdom.
  • C. Dolant A. Langlois V. Todorovic B. Montpetit A. Roy A. Royer. (2014). Detection of a rain-on-snow event (ROS) using an empirical algorithm using passive microwave radiometry. Eastern Snow Conference. Boone, United States.
  • K. Côté* J.-B. Madore* A. Langlois. (2014). Evaluating the potential of using SNOWPACK and alpine-3D in three Canadian mountain climates. International Snow Science Worksop. Banff, Canada.
  • J.-B. Madore* K. Côté* A. Langlois. (2014). Improvement of snow grain simulations from the multi-layered thermodynamic snow model SNOWPACK : implications to avalanche risk assessment. International Snow Science Worksop. Banff, Canada.
  • C. Pachon* A. Langlois A. Royer R. Brown R. Harvey. (2014). Improvement of the parameterization of the precipitation phase in the CRCM4 from the Canadian Land Surface Scheme (CLASS 2.7 and 3.5) in Northern Québec. Eastern Snow Conference. Boone, United States.
  • N. Thériault* A. Royer A. Langlois R. Harvey R. Brown. (2014). Improving snow albedo simulations in arctic and subarctic regions with the Canadian LAnd Surface Scheme (CLASS). Eastern Snow Conference. Boone, United States.
  • A. Langlois. (2014). NASA Snow Working Group - Remote Sensing (NASA SWGR). Eastern Snow Conference. Boone, United States.
  • L. Brucker A. Royer G. Picard A. Langlois M. Fily. (2014). Simulation of Seasonal Snow Microwave TB Using Coupled Multi-Layered Snow Evolution and Microwave Emission Models. Workshop on Microstructure in Snow Microwave Radiative Transfer MICROSNOW. Reading, United Kingdom.
  • A. Langlois. (2014). The truth about Arctic climate change: what is at stake?. Séminaire collège Champlain. Lennoxville, Canada.
  • A. Langlois. (2014). Winter extreme events in the Arctic: a focus on rain-on-snow events and Peary Caribou. University of Ottawa seminar. Ottawa, Canada.
  • A. Royer A. Langlois P. Cliche N. Marchand* B. Montpetit N. Thériault* A. Roy* E. Lefebvre, B. Lesaffre, G. Picard M. Fily. (2013). Amélioration de la modélisation de l’émission micro-onde de la neige par un suivi saisonnier des propriétés radiométriques et in-situ de la neige à la Baie James, Québec. Association Québécoise de Télédétection. Rimouski, Canada.
  • A. Royer R. Leconte A. Langlois M. Trudel* K. Goita. (2013). Amélioration du suivi de l’équivalent en eau du couvert nival dans un contexte hydrologique par télédétection. RHQ2013. Quebec, Canada.
  • A. Langlois. (2013). Applications thématiques de la géomatique au Québec: Cas de l’Université de Sherbrooke. Séminaires UM3. Montpellier, France.
  • A. Langlois. (2013). Arctique en changement : suivi de la fonte par télédétection micro-ondes et multi-spectrale. UM3-UPV GRED. Montpellier, France.
  • A. Langlois. (2013). Changements climatiques et géomatique. IAMM. Montpellier, France.
  • A. Langlois, C. Pachon*, B. Montpetit, A. Royer, A. Roy. (2013). Detection of a rain-on-snow event using passive microwaves: A case study. Eastern Snow Conference. Waterloo, Canada.
  • A. Langlois, A. Royer. (2013). Improving snow properties retrievals in thermodynamic snow models for satellite remote sensing. International Snow Science Workshop. Grenoble, France.
  • A. Langlois. (2013). La vérité sur les changements climatiques dans le Nord: enjeux environnementaux, sociaux, économiques et géopolitiques. Conférence dans le cadre du ‘Forum sur l’eau. Sherbrooke, Canada.
  • A. Langlois. (2013). La vérité sur les changements climatiques dans le Nord: enjeux environnementaux, sociaux, économiques et géopolitiques. Midi MAD du CUFE de l'Université de Sherbrooke. Sherbrooke, Canada.
  • A. Langlois, A. Royer, B. Montpetit*. (2013). Seasonal measurements of snow physical and radiometric properties during rain-on-snow events (ROS) over Eastern Canada. IEEE Geoscience and Remote Sensing Society meeting. Melbourne, Australia.

Les informations disponibles dans la base de données Expertus sont tirées du CV commun canadien.