Alain Royer

Prix et distinctions

• Prix Ferdinand-Bonn de L'Association Québécoise de Télédétection en reconnaissance du caractère exceptionnel de ses réalisations et de sa carrière (2021). Association Québécoise de Télédétection. (Prix).
• Professeur Émérite. Université de Sherbrooke. (Distinction).

Financement

• Subvention. (Obtenu). Collaborateur. Centre d'Étude Nordique. Regroupement startégique. 500 000 $. (2022-2028)
• Subvention. (Obtenu). Cochercheur. Multidisciplinary Observatory for Arctic Climate Change and Extreme Events Monitoring (MOACC). Fondation Canadienne pour l'Innovation (FCI). 4 200 000 $. (2022-2027)
• Subvention. (Obtenu). Collaborateur. Peary caribou, muskoxen and their predators: the value of Indigenous Knowledge in informing species recovery. 1 205 758 $. (2021-2026)
• Subvention. (Obtenu). Cocandidat. De l'observation de la Terre à distance aux services d'information décisionnelle (DOTS). Conseil de Recherches en Sciences Naturelles et Génie du Canada (CRSNG). FONCER/CREATE. 1 650 000 $. (2020-2026)
• Subvention. (Obtenu). Cocandidat. Centre d'Applications et de Recherches en Télédétection (CARTEL). Université de Sherbrooke. 90 000 $. (2023-2025)
• Subvention. (Obtenu). Chercheur principal. Géophysique spatiale de l'environnement nordique et changemement climatique. Conseil de Recherches en Sciences Naturelles et Génie du Canada (CRSNG). Découverte. 150 000 $. (2020-2025)
• Subvention. (Obtenu). Cochercheur. 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 - Nature et technologies (FRQNT). Équipe. 150 000 $. (2021-2024)
• Subvention. (Obtenu). Cochercheur. Improved Snowfall estimation in support of avalanche hazard. Sécurité Publique et Protection Civile du Canada (SPPCC). Search and Rescue New Initiatives Fund program. 431 000 $. (2021-2024)
• Subvention. (Obtenu). Collaborateur. Vers une meilleure quantification du changement climatique des régions nordiques canadiennes avec le développement du suivi de variables d’états de surface clés basé sur la télédétection micro-onde. Samuel-de-Champlain. 60 000 $. (2022-2024)
• Subvention. (Terminé). Cocandidat. Centre d'Applications et de Recherches en Télédétection (CARTEL). Université de Sherbrooke. Centres d'Excellences. 90 000 $. (2020-2023)
• Subvention. (Obtenu). Cocandidat. Development of microwave multi-sensor Freeze/thaw products over Canada based on dense soil temperature networks. Agence Spatiale Canadienne (ASC). FAST (Flights and Fieldwork for the Advancement of Science and Technology). 300 000 $. (2020-2023)
• Subvention. (Terminé). Cochercheur. Centre d'études Nordiques. Fonds de recherche du Québec - Nature et technologies (FRQNT). Regroupement stratégique Centre de recherche. 408 000 $. (2015-2022)
• Subvention. (Terminé). Cochercheur. 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). FRQNT - CFQCU. 25 000 $. (2017-2021)
• Subvention. (Terminé). Cochercheur. Operational snow simulations for avalanche forecasting in Canada: implementation of the SNOWPACK model into the Avalanche Forecasting System. Agence de santé publique du Canada (ASPC). SAR New Initiatives Fund. 333 250 $. (2018-2021)
• Subvention. (Terminé). Chercheur principal. Station de suivi des changements de l'état de la neige Arctique. Conseil de Recherches en Sciences Naturelles et Génie du Canada (CRSNG). RTI. 54 700 $. (2020-2021)

Publications

Articles de revue

• Ortet* J. , A. Mialon, Y. Kerr, A. Royer, A. Berg, J. Boike, E. Humphreys, F. Gibon, P. Richaume, S. Bircher, A. Gorrab and A. Roy. (2024). Evaluation of soil moisture retrieval in Arctic and sub-Arctic environment using passive microwave satellite data. International Journal of Digital Earth 17(1) DOI. (Article publié).
• Meloche J., A. Royer, A. Roy, A. Langlois and G. Picard. (2024). Improvement of Polar Snow Microwave Brightness Temperature Simulations for Dense Wind Slab and Large Grain. IEEE Trans. on Geoscience and Remote Sensing, Art no. 2005410 62 DOI. (Article publié).
• Royer A. (2024). Le changement climatique accroît les défis liés à la gestion de la neige et de la ressource en eau dans les stations de ski. Le Climatoscope_Climactualité, U. De Sherbrooke (Article publié).
• Sandells, M., Rutter, N., Wivell, K., Essery, R., Fox, S., Harlow, C., Picard, G., Roy, A., Royer, A., and Toose, P. (2024). Simulation of Arctic snow microwave emission in surface-sensitive atmosphere channels. The Cryosphere 18 3971–3990. DOI. (Article publié).
• Saulnier-Talbot É. et 36 auteurs (incluant A. Royer). (2024). State shifts and divergent sensitivities to climate warming across northern ecosystems. Earth and Environment DOI. (Article soumis).
• Kramer*, D., Langlois, A., Royer, A., Madore*, J.-B., King, J., McLennan, D. and É. Boisvert-Vigneault. (2023). Assessment of Arctic snow stratigraphy and water equivalent using a portable Frequency Modulated Continuous Wave RADAR. Cold Regions Science and Technology 205 103683. DOI. (Article publié).
• Meloche* J., Langlois, A., Rutter, N., Royer, A., King, J., and Walker, B. (2022). Characterizing Tundra snow sub-pixel variability to improve brightness temperature estimation in satellite SWE retrievals. The Cryosphere 16 87-101. DOI. (Article publié).
• Royer A. et N. Marchand. (2022). Enjeux nordiques : La preuve par satellite. Le Climatoscope 4 96-100. DOI. (Article publié).
• Meloche*, J., Langlois, A., Rutter, N., McLennan, D., Royer, A., Billecocq*, P. and S. 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. (Article publié).
• Voglimacci-Stephanopoli* J., Wendleder, A., Lantuit, H., Langlois, A., Stettner, S., Schmitt, A., Dedieu, J.-P., Roth, A., and Royer, A. (2022). Potential of X-band polarimetric synthetic aperture radar co-polar phase difference for arctic snow depth estimation. The Cryosphere 16 2163–2181. DOI. (Article publié).
• Picard, G., Löwe, H., Domine, F., Arnaud, L., Larue, F., Favier, V., Le Meur, E., Lefebvre, E., Savarino, J., and A. Royer. (2022). The microwave snow grain size: A new concept to predict satellite observations over snow-covered regions. AGU Advances 3, e2021AV000630 DOI. (Article publié).
• Royer A., Picard G., Vargel C., Langlois A., Gouttevin I. and M. Dumont. (2021). Improved simulations of Arctic snow properties and soil temperature climatology over the period 1979–2018 in circumpolar taiga and Arctic areas. Frontiers in Earth Science, Cryospheric Sciences section (9), 685140. DOI. (Article publié).
• Royer A., F. Dominé, A. Roy, A. Langlois, N. Marchand and G. Davesne. (2021). New northern snowpack classification linked to vegetation cover on a latitudinal mega-transect across Northeastern Canada. Écoscience DOI. (Article publié).
• Laliberté J., Langlois A., Royer A., Madore J.-B. and F. Gauthier. (2021). Retrieving dry snow stratigraphy using a versatile low-cost frequency modulated continuous wave (FMCW) K-band radar. Physical Geography DOI. (Article publié).
• Royer A., A. Roy, S. Jutras and A. Langlois. (2021). Review article: Performance assessment of radiation-based field sensors for monitoring the water equivalent of snow cover (SWE). The Cryosphere 15 5079-5098. DOI. (Article publié).
• Mavrovic A., R. Pardo Lara, A. Berg, F. Demontoux, A. Royer and A. Roy. (2021). Soil dielectric characterization at L-band microwave frequencies during freeze-thaw transitions. Hydrol. Earth Syst. Sci. 25, 1117–1131 (Article publié).
• Royer A., F. Domine, A. Roy and A. Langlois. (2021). Two Decades of Snow Studies over a 4000 Km Transect, From 47°N To 83°N In Eastern Canada. IASC T-MOSAIC (Int. Arctic Science Committee - Terrestrial Multidisciplinary distributed Observatories for the Study of Arctic Connections) Newsletter (9), 18-21. (Article publié).
• Vargel V.*, A. Royer, O. St-Jean-Rondeau*, G. Picard, A. Roy, V. Sasseville* and A. Langlois. (2020). Arctic and Subarctic snow microstructure analysis for microwave brightness temperature simulations. Remote Sensing of Environment 242 (111754), (Article publié).
• Royer A. (2020). Crises économiques, CO2 et Climat : gare à l’effet pendule. Le Climatoscope 2 21-26. (Article publié).
• Meloche J. , A. Royer , A. Langlois , N. Rutter et V. Sasseville. (2020). Improvement of microwave emissivity parameterization of frozen Arctic soils using roughness measurements derived from photogrammetry. International Journal of Digital Earth, 13, DOI: 10.1080/17538947.2020.1836049 (Article publié).
• Roy A., P. Toose, A. Mavrovic*, C. Pappas, A. Royer, C. Derksen, A. Berg, T. Rowlandson, M. El-Amine*, A. Barr, A. Black, A. Langlois and O. Sonnentag. (2020). L-Band response to freeze/thaw in a boreal forest stand from ground- and tower-based radiometer observations. Remote Sensing of Environment 237 (111542), (Article publié).
• Royer A. (2020). Le chaînon manquant. Bulletin de l’Association québécoise de télédétection 34(1), 12-13 (Article publié).
• Pomerleau P., A. Royer, A. Langlois, P. Cliche, B. Courtemanche, J.-B. Madore, G. Picard and E. Lefebvre. (2020). Low cost and compact FMCW 24 GHz radar applications for snowpack and ice thickness measurements. Sensors 20(14) 3909. (Article publié).
• Langlois, A., Royer, A., Montpetit, B., Roy, A. and M. Durocher. (2020). Snow grain size and shape distributions in northern Canada. Frontiers in Earth Science 7 347. (Article publié).
• Mavrovic A.*, J.-B. Madore, A. Langlois, A. Royer, A. Roy. (2020). Snow liquid water content measurement using an open-ended coaxial probe (OECP). Cold Regions Science and Technology 171, 102958 (Article publié).
• Royer A. (2019). Alerte dans les hautes latitudes nord : l’Arctique réagit au réchauffement climatique. Le Climatoscope, Université de Sherbrooke 1 25-28. (Article publié).
• Kramer D., Meloche, J., Langlois, A., McLennan, D., Gauthier-Barrette, C., Royer, A. and P. Cliche. (2019). Designing a Do-It-Yourself (DIY) Unmanned aerial Vehicle (UAV) for Arctic research purposes and proving its capabilities by retrieving snow depth via structure-from-motion. Aqhaliat 2019, Polar Knowledge Canada (43-62), DOI. (Article publié).
• Rutter, N., Sandells, M. J., Derksen, C., King, J., Toose, P., Wake, L., Watts, T., Essery, R., Roy, A., Royer, A., Marsh, P., Larsen, C. and M. Sturm. (2019). Effect of snow microstructure variability on Ku-band radar snow water equivalent retrievals. The Cryosphere 13 3045-3059. (Article publié).
• Pomerleau P.*, A. Royer, P. Cliche*, C. Courtemanche and A. Langlois. (2019). Measuring lake ice thickness and snow water equivalent using a Frequency-Modulated Continuous-Wave Radar. Cold Regions Science and Technology (Article soumis).
• Prince M.*, A. Roy, A. Royer and 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 111230. (Article publié).
• Dolant C., B. Montpetit, A. Langlois, L. Brucker, O. Zolina, C.A. Johnson, A. Royer and P. Smith. (2018). Assessment of the Barren Ground Caribou die-off during winter 2015-2016 using passive microwave observations. Geophysical Research Letter https://doi.org/10.1029/2017GL076752. 45 (Article publié).
• Larue F.*, A. Royer, D. DeSève, A. Roy and E. Cosme. (2018). Assimilation of passive microwave AMSR-2 satellite observations in a snowpack evolution model over North-Eastern Canada. Hydrol. Earth Syst. Sci. 22 5711-5734. DOI. (Article publié).
• Montpetit B.*, A. Royer, A. Roy and A. Langlois. (2018). In-situ passive microwave parameterization of sub-arctic frozen organic soils. Remote Sensing of Environment 205 112-118. (Article publié).
• Prince M.*, A. Roy, L. Brucker, A. Royer, Y. Kim and T. Zhao. (2018). Intercomparison of Aquarius L-band and Ka-band Surface Freeze/Thaw Products. Earth Syst. Sci. Data 10 2055–2067. (Article publié).
• Royer A. (2018). La qualité de la neige évolue-t-elle avec le climat?. Bulletin de l’Association québécoise de télédétection 32(1), 12-13 (Article publié).
• Larue F.*, A. Royer, D. De Sève, A. Roy, G. Picard and V. Vionnet. (2018). Simulation and assimilation of passive microwave data using a snowpack model coupled to a calibrated radiative transfer model over North- Eastern Canada. Water Resources Research 54 4823-4848. (Article publié).
• Marchand N.*, Royer, A., Krinner, G., Roy, A., Langlois, A. and C. 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 10 (11), 1703. DOI. (Article publié).
• Lyu H, K. A. McColl, X. Li, C. Derksen, A. Berg, T. A. Black, E. Euskirchen, M. Loranty, J. Pulliainen, K. Rautiainen, ?T. Rowlandson, A. Roy, A. Royer, A. Langlois, J. Stephens, Hui Lu and D. Entekhabi. (2018). Validation of the SMAP freeze/thaw product using categorical triple collocation. Remote Sensing of Environment 205 329-337. (Article publié).
• Mavrovic A.*, A. Roy, A. Royer, B. Filali, F. Boone, C. Pappas and O. Sonnentag. (2018). Vegetation dielectric characterization in L-band using an open-ended coaxial probe. Geosci. Instrum. Method. Data Syst., 7 195-208. DOI. (Article publié).
• Busseau B.C.*, A. Royer, A. Langlois and F. Domine. (2017). Analysis of snow-vegetation interactions in the Low Arctic – Subarctic transition zone (north-eastern Canada). Physical Geography DOI: 10.1080/02723646.2017.1283477 (Article publié).
• 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. (Article publié).
• Langlois, A., Johnson, C.-A., Montpetit, B., Royer, A., Blukacz-Richards, E.A., Neave, E., Dolant, C., Roy, A.*, Arhonditsis, G., Kim, D.-K., Kaluskar, S., and 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 189 84-95. (Article publié).
• Dolant C., A. Langlois, L. Brucker, A. Royer, A. Roy* and B. Montpetit. (2017). Meteorological inventory of Rain-On-Snow events in the Canadian Arctic Archipelago and satellite detection assessment using passive microwave data. Physical Geography DOI: 10.1080/02723646.2017.1400339 DOI. (Article publié).
• Wigneron J.P., T.J. Jackson, P. O’Neill, G.J. De Lannoy, P. de Rosnay, J.P. Walker, P. Ferrazzoli, V. Mironov, S. Bircher, J.P. Grant, M. Kurum, M. Schwank, J. Munoz-Sabater, N. Das, A. Royer, A. Al-Yaari, A. Al Bitar, R. Fernandez-Moran, H. Lawrence, A. Mialon, M. Parrens, P. Richaume, S. Delwart and Y. Kerr. (2017). Modelling the passive microwave signature from land surfaces: A review of recent results and application to the L-Band SMOS & SMAP soil moisture retrieval algorithms. Remote Sensing of Enviro. Invited Review Paper 192 238–262. (Article publié).
• Toose P., A. Roy*, F. Solheim, C. Derksen, T. Watts, A. Royer and A. Walker. (2017). Radio-frequency interference mitigating hyperspectral L-band radiometer. Geosci. Instrum. Method. Data Syst. 6 39–51. (Article publié).
• Roy A.*, P. Toose, M. Williamson, T. Rowlandson, C. Derksen, A. Royer, A. Berg, J. Lemmetyinen and L. Arnold. (2017). Response of L-Band brightness temperatures to freeze/thaw and snow dynamics in a prairie environment from ground-based radiometer measurements. Rem. Sens. of Enviro. 191 67-80. (Article publié).
• Derksen C., X. Xu, R.S. Dunbar, A. Colliander, Y. Kim, J. Kimball, A. Black, E. Euskirchen, A. Langlois, M. Loranty, P. Marsh, K. Rautiainen, A. Roy*, A. Royer and J. Stephens. (2017). Retrieving landscape freeze/thaw state from SoilMoisture Active Passive (SMAP) radar and radiometer measurements. Remote Sensing of Environment 194 48-62. (Article publié).
• Roy A.*, Toose, P., Derksen, C., Rowlandson, T., Berg, A., Lemmetyinen, J., Royer, A., Tetlock, E., Helgason, W. and O. Sonnentag. (2017). Spatial Variability of L-BandBrightness Temperature during Freeze/Thaw Events over a Prairie Environment. Remote Sensing 9 894. (Article publié).
• Ouellet F., 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 38 (2), (Article publié).
• Blanchard Y.*, A. Royer, N. O'Neill, D. Turner and E. Eloranta. (2017). Thin ice clouds in the Arctic: Cloud opticaldepth and particle size retrieved from ground-based thermal infraredradiometry. Atmos. Meas. Tech. 10 2129-2147. (Article publié).
• Larue F.*, A. Royer, D. De Sève, A. Langlois, A. Roy* and L. Brucker. (2017). Validation of GlobSnow-2 snow water equivalentover Eastern Canada. Remote Sensing of Environment 194 264-277. (Article publié).
• Dolant C., A. Langlois, B. Montpetit, L. Brucker, A. Roy* and A. Royer. (2016). Development of a rain-on-snow detection algorithm using passive microwave radiometry. Hydrol. Process 30 (18), 3184–3196. (Article publié).
• Roy A.*, A. Royer, O. St-Jean-Rondeau*, B. Montpetit*, G. Picard, A. Mavrovic*, N. Marchand* and A. Langlois. (2016). Microwave snow emission modelling uncertainties in boreal and subarctic environments. The Cryosphere 10 623-638. (Article publié).
• Papasodoro C.*, A. Royer, A. Langlois and E. Berthier. (2016). Potential of RADARSAT-2 stereo radargrammetryfor the generation of glacier digital elevation models. J. of Glaciology 62 (233), (Article publié).
• Papasodoro C.*, E. Berthier, A. Royer, C. Zdanowicz and A. Langlois. (2015). Area, elevation and mass changes of the two southernmost icecaps of the Canadian Arctic Archipelago between 1952 and 2014. The Cryosphere 9 1535-1550. (Article publié).
• Courtemanche B.*, B. Montpetit, A. Royer and A. Roy*. (2015). Creation of a lambertian microwave surface for retrieving the downwelling contribution in ground-based radiometric measurements. IEEE Geoscience and Remote Sensing Letters 12 (3), 462-466. (Article publié).
• Roy A.*, A. Royer, C. Derksen, L. Brucker, A. Langlois, A. Mialon, and Y. 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: 10.1109/JSTARS. (2476358), (Article publié).
• Montpetit B.*, A. Royer, J.-P. Wigneron, A. Chanzy and A. Mialon. (2015). Evaluation of multi-frequency bare soil reflectivity models. Remote Sensing of Environment 162 186 - 195. (Article publié).
• André C.*, C. Ottlé, A. Royer and F. Maignan. (2015). Land Surface Temperature Retrieval over circumpolar Arctic using SSM/I-SSMIS and MODIS Data. Remote Sensing of Environment 162 1-10. (Article publié).
• Langlois A., Bergeron, J.*, Brown, R., Royer, A., Harvey, R., Roy, A.*, Wang, L. and 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. J. of Hydrometeorology On line (Article publié).
• Picard G., A. Royer, L. Arnaud and M. Fily. (2014). Influence of meter-scale wind-formed features on the variability of the microwave brightness temperature around Dome C in Antarctica. The Cryosphere 8 (Article publié).
• Dupont F.*, G. Picard, A. Royer, M. Fily, A. Roy*, A. Langlois and N. 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 52 (10), 6639-6651. (Article publié).
• Roy A.*, Royer, A. and R.J. Hall. (2014). Relationship between forest microwave transmissivity and structural parameters for the Canadian boreal forest. IEEE Geoscience and Remote Sensing Letters 11 (10), 1802-1806. (Article publié).
• Bergeron J.*, A. Royer and R. Turcotte. (2014). Snow cover estimation using blended MODIS and AMSR-E data for improved watershed-scale spring streamflow simulation in Quebec, Canada. Hydrological Processes On line (Article publié).
• Rutter, N., M. Sandells, C. Derksen, P. Toose, A. Royer*, B. Montpetit*, A. Langlois, J. Lemmetyinen, and J. Pulliainen. (2014). Snow stratigraphic heterogeneity within ground-based passive microwave radiometer footprints: Implications for emission modeling. J. Geophys. Res. Earth Surf. 119 (3), 550–565. (Article publié).
• Chokmani K., M. Bernier and A. Royer. (2013). A Merging Algorithm for Regional Snow Mapping over Eastern Canada from AVHRR and SSM/I Data. Remote Sensing 5 (11), 5463-5487. (Article publié).
• Roy, A., Picard, G., Royer, A., Montpetit, B., Dupont, F., Langlois, A., C. Derksen and N. Champolion. (2013). Brightness temperature simulations of the Canadian seasonal snowpack driven by measurements of snow specific surface area. IEEE Transactions on Geosciences and Remote Sensing 51 (9), 4692-4704. (Article publié).
• Picard G., Brucker, L., Roy, A.*, Dupont, F.*, Fily, M., Royer, A. and C. Harlow. (2013). Simulation of the microwave emission of multi-layered snowpacks using the Dense Media Radiative transfer theory: the DMRT-ML model. Geoscientific Model Development 6 1061-1078. (Article publié).
• Montpetit B.*, Royer, A., Roy, A., Langlois, A. and C. 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 51 (9), 4705- 4717. (Article publié).
• Roy A.*, A. Royer, B. Montpetit*, P.A. Bartlett and 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. (Article publié).
• Roy, A., Royer, A., Wigneron, J.-P., A. Langlois, J. Bergeron and P. Cliche. (2012). A simple parameterization for a boreal forest radiative transfer model at microwave frequencies. Remote Sensing of Environment 124 371–383. (Article publié).
• Langlois, A., Royer, A., Derksen, C., Montpetit, B., Dupont, F. and Goita, K. (2012). Coupling of the snow thermodynamic model SNOWPACK with the Microwave Emission Model for Layered Snowpacks (MEMLS) for subarctic and arctic Snow Water Equivalent retrievals. Water Resources Research 48 (W12524), 1-14. (Article publié).
• Kohn J. and A. Royer. (2012). Microwave brightness temperature as an indicator of near-surface air temperature over snow in Canadian northern regions. Int. J. of Remote Sensing 33 (4), 1126-1138. (Article publié).
• Dupont, F., Royer, A., Langlois, A., Gressent, A., Picard, G., Fily, M., Cliche, P. and Chum, M. (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 26 (17), 2643–2652. (Article publié).
• Montpetit B., Royer A., Langlois A., Cliche P., Roy A., Champollion N., Picard G., Domine F. and Obbard R. (2012). New short wave infrared albedo measurements for snow specific surface area retrieval. Journal of Glaciology 58 (211), 941-952. (Article publié).
• Derksen C. + 19 co-authors, including A. Royer. (2012). Variability and Change in the Canadian Cryosphere. Climate Change 115 (1), 59-88. (Article publié).
• Touré A., K. Goïta, A. Royer, E. Kim, M. Durand, S.A. Margulis and Huizhong Lu. (2011). A Case Study of Using a Multi-Layered Thermo-Dynamical Snow Model for Radiance Assimilation. IEEE Transactions on Geoscience and Remote Sensing 49 (8), 2828-2837. (Article publié).
• Roy A., A. Royer et R. Turcotte. (2011). Analyse de l’identification de la fonte de neige printanière avec QuickSCAT dans le Sud du Québec, Canada. J. Can de Télédétection 36 (2), 89–98. (Article publié).
• Brucker L., 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 115 1966-1977. (Article publié).
• Langlois, A., Royer, A., Dupont, F., Roy, A., Goïta, K. and Picard, G. (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 49 (10), 3824-3837. (Article publié).
• Kohn J. and A. Royer. (2010). AMSR-E data Inversion for soil temperature estimation under snow cover. Rem. Sens. of Enviro. 114 2951–2961. (Article publié).
• Langlois, A., Royer A. and Goïta, K. (2010). Analysis of simulated and spaceborne passive microwave brightness temperatures using in-situ measurements of snow and vegetation properties. Can. J. Remote Sensing 36 S135–S148. (Article publié).
• Roy A., A. Royer and R. Turcotte. (2010). Improvement of spring floods simulations with the use of remote sensing snow cover area data in Québec. J. of Hydrology 390 35-44. (Article publié).
• Vachon, F., Goïta, K., De Sève, D., Royer, A. (2010). Inversion of a snow emission model calibrated with in situ data for snow water equivalent monitoring. IEEE Transactions on Geoscience and Remote Sensing 48 (1), 59-71. (Article publié).
• Royer A., K. Goïta, J. Kohn, D. DeSève. (2010). Monitoring Dry, Wet and No- Snow Conditions from Microwave Satellite Observations. IEEE Geos. Remote Sens. Letters 7 (4), 670-674. (Article publié).
• Langlois, A., Royer, A., Montpetit, B., Picard, G., Brucker, L., Arnaud, L., Goïta, K. and Fily, M. (2010). On the relationship between measured and modeled snow grain morphology using infrared reflectance. Cold Regions Science and Technology 61 34–42. (Article publié).
• Turcotte, R., Fortier Filion, T.-C., Lacombe, P., Fortin, V., Roy, A. & Royer, A. (2010). Simulation hydrologique des derniers jours de la crue de printemps: le problème de la neige manquante. Hydrological Sciences J. 55 (6), 872-882. (Article publié).
• Royer A. and S. Poirier. (2010). Surface temperature spatial and temporal variations in Northern America from homogenized satellite SSMR-SSM/I microwave measurements and reanalysis for 1979-2008. J. of Geophysical Research 115 (D08110), (Article publié).
• Toure A. M., Goïta K. Royer A., Mätzler C. and M. Schneebeli. (2009). Near-infrared digital photography to estimate snow correlation length for microwave emission modeling. Applied Optics 48 (1), 1-11. (Article publié).
• Langlois, A., Brucker, L., Kohn, J., Royer, A., Derksen, C., Cliche, P., Picard, G., Fily, M. and Willemet, J.M. (2009). Simulation of Snow Water Equivalent (SWE) using Thermodynamic Snow Models in Québec, Canada. J. of Hydrometeorology 10 (6), 1447. (Article publié).
• Haboudane, D., F. Bonn et A. Royer. (2008). Evaluation and predictability of terrain susceptibility to hillslope erosion at the regional scale using dem-derived indices and remotely sensed information. Télédétection 7 373-391. (Article publié).
• Royer A., F. Becker et P. Gagnon. (2008). Trente-cinq ans d’observation de la Terre : de la photographie à l’électromagnétométrie,. Télédétection 7 65-88. (Article publié).
• Royer, A., M. Fily, G. Picard. (2008). Évolution des températures de surface des régions polaires et subarctiques par télédétection satellite. Lettre PIGB-PMRC France 21 (Article publié).

Rapports

• DeLaFontaine J., A. Royer, F. Châteauneuf and J. Hackett. (2009). Platform for the Observation of the Earth and for in-orbit Technology Experiments POETE. Final Technical Report for the Canadian Space Agency, Canada, Contract No. #9F028-07-0111/006/MT. Agence spatiale Canadienne. 80 p.
• Blanchet J.-P., A. Royer, F. Chateauneuf and N. O’Neill. (2009). Thin Ice Cloud in Far-Infrared Experiment (TICFIRE), Final Research Report Contract 9F028-07-011/A for new Mission/Payload Concepts, Canadian Space Agency. Agence spatiale Canadienne. 100 p.

Articles de conférence

• Vionnet V., N. R. Leroux, V. Fortin, G. Woolley, G. Mazzotti, M. Gaillard, A. Royer, M. Abrahamowicz, N. Rutter, C. Derksen and S. Belair. (2024). Enhancing snowpack simulations in land surface models in support of spaceborne snow missions. Canadian Geophysical Union Annual Meeting (CGU) - CLASSIC workshop 2024, Carleton University, Ottawa, O.N., 26-30 May 2024.
• Vionnet V., V. Fortin, F. Domine, A. Royer, G. Mazzotti, G. Woolley, M. Abrahamowicz, M. Lafaysse, N. Rutter, L. Wake, C. Derksen and S. Belair. (2023). Impact of vegetation and climate on simulated snowpack properties along a 4000-km latitudinal transect across eastern Canada. IUGG General Assembly, July 2023, Vienna, Austria. (Oral). (Article accepté).
• Picard G., H. Löwe, M. Sandells, F. Larue, F. Domine, L. Arnaud, V. Favier, E. Le Meur, J. Savarino, P. Thibault, J. Aublanc, S. Shukla, A. Royer et N. Floury. (2022). Advances in the Snow Microwave Radiative Model to prepare the CRISTAL, CIMR and ROSE-L missions. 2022 Leaving Planet Symposium, 23-27 May 2022, Bonn, Germany.
• Trunz* C., A. Royer, P. Ménard et A. Langlois. (2022). Résultats préliminaires d’une station prototype de mesure en continu de l’équivalent en eau de la neige à Cambridge Bay (Nunavut) avec des récepteurs GPS. 22e Colloque du Centre d’étude Nordique, Québec.
• Meloche* J., A. Royer, A. Langlois, N. Rutter and V. Sasseville*. (2020). Improvement of microwave emissivity parameterization of frozen Arctic soils using roughness measurements derived from automated computer vision photogrammetry. American Geophysical Union (AGU), Fall Meeting 2020, San Francisco, CA, 1-17 Dec. 2020. (Article accepté).
• Vargel C.*, A. Royer, G. Picard, I. Gouttevin and M. Dumont. (2019). Arctic snow modelling with a new parameterization of Crocus to improve vertical snow density stratification and soil temperature simulations. 76th Eastern Snow Conference 2019, Fairlee, Vermont, USA June 4-6, 2019 (Oral). (Article publié).
• Mavrovic A.*, J.-B. Madore, A. Langlois, A. Royer, A. Roy. (2019). Development of an open-ended coaxial probe (OECP) for snow liquid water content measurement. 76th Eastern Snow Conference, Fairlee, Vermont, USA June 4-6, 2019 (Oral). (Article publié).
• Royer A., C. Vargel*, G. Picard, A. Langlois and V. Sasseville*. (2019). Improved microwave radiometry modelling of tundra arctic snow. ESA Living Planet Symposium 2019. (Article publié).
• Vargel C.*, A. Royer, G. Picard, I. Gouttevin and M. Dumont. (2019). Pan-Arctic snow modelling with a new parametrization of Crocus to improve snow climatology above 45°N latitude. American Geophysical Union, Fall Meeting 2019, San Francisco, CA, 9-13 Dec. 2019. (Article publié).
• Royer A., F. Larue*, C. Vargel*, A. Roy*, A. Langlois, V. Vionnet, G. Picard and E. Cosme. (2018). Improved subarctic and Arctic SWE Retrieval using Passive Microwave over Canada. Proceedings, (Article publié).
• Maurais, J., Dauphinais, E., Larivière-Loiselle, C., Beaumont, E., Morin, E., Royer, A., Bouchard, N.-A., Ayotte, P. and J. Bourret. (2018). Prevention And Mitigation Of Fugitive Dust Emission From Bauxite Residues: aggravating environmental effects, forecasting and risk assessment. Proc. of the Alumina Quality Workshop (AQW 2018), Gladstone Queensland, Australia, 9 pp. (Article publié).
• Laliberté, J., Langlois, A, Royer, A., Madore, J.-B. and Gauthier, F. (2018). Retrieving snow stratigraphic information using a frequency modulated continuous wave (FMCW) Ka-band radar. Proceedings International Snow Science Workshop, 647-651. (Article publié).
• Roy A.*, A. Langlois, C. Dolant, L. Brucker and A. Royer. (2018). Snowex 2017 In-Situ Passive Microwave Measurements: Analysis of wet Snow Microwave Emission. Proc. of IEEE Int. Geoscience and Remote Sensing Symp. (IGARSS 2018), 6273-6275. (Article publié).
• Roy A.*, P. Toose, A. Mavrovic, C. Pappas, A. Berg, T. Rowlandson, C. Derksen, A. Royer, M. El-Amine*, W. Helgason, A. Barr and O. Sonnentag. (2018). Use of L-Band Ground-Based Radiometers for Freeze/Thaw Retrieval in A Boreal Forest Site. Proc of the Int. Geoscience and Remote Sensing Symp. 2018 (IGARSS 2018), 9042-9044. (Article publié).
• Poncin M.*, A. Royer, S. Belair and A. Langlois. (2017). Assimilation des observations spatiales micro-ondes passives dans le schéma de surface du modèle météorologique canadien pour l’amélioration de la prévision des analyses de champs de neige. Earth Observation (EO) Summit 2017: 38th Canadian Symposium on Remote Sensing (CSRS), 17th Congress of the Association Québécoise de Télédétection (AQT) and 11th Advanced SAR (ASAR) Workshop. (Article publié).
• Royer A., F. Larue*, A. Roy*, D. De Sève, V. Vionnet, G. Picard and E. Cosme. (2017). Snow water equivalent monitoring retrieved by assimilating passive microwave observations in a coupled snowpack evolution and microwave emission models over North-Eastern Canada. American Geophysical Union, Fall Meeting 2017. #C53A-1013. (Article publié).
• Larue F.*, A. Royer, D. De Sève, A. Roy*, G. Picard, V. Vionnet. (2017). Snow water equivalent monitoring using coupled snowpack evolution and microwave emission models over North-Eastern Canada. CGU & CSAFM Joint Annual Meeting. (Article publié).
• Mavrovic A.*, A. Roy*, A. Royer, O. Sonnentag, C. Pappas, B. Filali and F. Boone. (2017). Vegetation dielectric characterization using an open-ended coaxial probe (OECP). American Geophysical Union, Fall Meeting 2017. B23E-2129. (Article publié).
• Marchand N.*, A. Royer, C. Ottlé, G. Krinner, A. Roy* and A. Langlois. (2016). Continuous ground surface temperature measurements over the Arctic : a key parameter for the monitoring of permafrost evolution. ESA Earth Observation and Cryosphere Science. (Article publié).
• Roy A.*, A. Royer, C. Derksen, A. Langlois and O. Sonnentag. (2016). Monitoring Boreal and Arctic Freeze/Thaw with the First Year of SMAP Brightness Temperatures. Proceeding, 82-84. (Article publié).
• Royer A., R. Lanoix*, A. Roy*, C. Ottlé, F. Maignan, G. Krinner and M. Fily. (2016). Permafrost mapping derived from remotely-sensed ground surface temperature over Arctic during summer periods. 50th CMOS Congress & joint CGU Annual Meeting. (Article publié).
• Roy A.*, A. Royer, B. Montpetit* and A. Langlois. (2015). Microwave snow emission modeling of boreal forest. Proceedings, (Article publié).
• Roy A.*, P. Toose, C. Derksen, A. Royer, A. Berg, L. Arnold, M. Willamson, T. Rowlandson, A. Langlois and E. Tetlock. (2015). Response of L-Band brightness temperatures to Prairie soil and snow properties from surface-basedradiometer measurements. IEEE International Geoscience and Remote Sensing Symposium 2015 (IGARSS 2015) (Oral). (Article publié).
• Hamel J.F., A. St-Amour, J. de Lafontaine, T. J. Lynham, J. M. Johnston, J. Cain, M. Lihou, D. Dufour, A. Royer, M. Flannigan, G. Bonin, S. Gravel and D. Davignon. (2015). The Innovative Microsatellite-Based Canadian Wildland Fire Monitoring System. Proceedings, IAC-15.B1.2.4. (Article publié).
• Royer A., P. Cliche*, N. Marchand*, A. Roy*, Y. Blanchard*, N. O’Neill and D. Crozel. (2014). An Automatic Sky Spectral Thermal Infrared Radiometer (ASSTIR) system. 4th International Symposium on Recent Advances in Quantitative Remote Sensing: RAQRS'IV. (Article publié).
• Roy A.*, A. Royer, B. Montpetit*, A. Langlois, L. Brucker, C. Derksen, A. Mialon and Y. Kerr. (2014). Analysis of SMOS and Aquarius L-band observations of soil freezing and thawing processes over Arctic regions. 13th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad 2014). (Article publié).
• Roy A.*, A. Royer, B. Montpetit* and A. Langlois. (2014). Microwave brightness temperature analysis of snow under boreal forest over North Eastern-Canada. Oral, (Article publié).
• Papasodoro C.*, A. Royer and A. Langlois. (2014). Monitoring Baffin Island glaciers melt using RADARSAT-2 Stereo Radargrammetry. Oral, (Article publié).
• Marchand N.*, A. Royer, G. Krinner and A. Roy*. (2014). Monitoring of the permafrost surface active layer in Quebec and in the Arctic using remote sensing. Geophysical Research Abstracts, v. 16, (Article publié).
• Royer A., A. Roy*, A. Langlois, P Toose, C. Derksen and G. Picard. (2014). Retrieval of mean snow grain optical radius from surface-based microwave radiometry. Oral, (Article publié).
• Roy A.*, A. Royer, B. Montpetit* and A. Langlois. (2014). Simulation of snow under boreal forest microwave brightness temperature. IGARSS and 35th Canadian Symp. on Rem. Sensing. (Article publié).
• André C.*, C. Ottlé, F. Maignan, A. Royer and M. Fily. (2014). Summer land surface temperature mapping over Arctic from passive microwave microwave sensors. IGARSS and 35th Canadian Symp. on Rem. Sensing. (Article publié).
• Royer A., A. Langlois, P. Cliche*, N. Marchand*, B. Montpetit*, N. Thériault*, A. Roy*, É. Lefebvre, B. Lesaffre, G. Picard and 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. Oral, (Article publié).
• Dupont F.*, G. Picard, A. Royer, M. Fily, S. Morin and M. Lafaysse. (2013). Climate sensitivity of the Barnes Ice Cap investigated by snow modeling and remote sensing data. Oral, (Article publié).
• Royer A., A. Roy*, B. Montpetit*, F. Dupont*, L. Brucker, G. Picard and M. Fily. (2013). From optical snow grain radius to microwave grain size parameterization: Simulations and validation analysis. Oral, (Article publié).
• Picard G., L. Arnaud, Q. Libois, N. Champollion, C. Carmagnola, S. Morin, B. Montpetit* and A. Royer. (2013). Innovative methods for high-resolution and quantitative snowpack stratigraphy. Oral, (Article publié).
• Royer A., G. Picard, L. Arnaud and M. Fily. (2013). Monitoring snow dunes at Dome C in Antarctica using in-situ and satellite microwave brightness temperatures. Oral, (Article publié).
• Rodrigue S.*, A. Royer and R. Fernandes. (2013). Over 30 years of remotely-sensed snow cover duration in relation to the vegetation cover over tundra, taiga and forested areas in Nunavik. Oral, (Article publié).
• Langlois, A., Royer, A. and C. Derksen. (2012). Coupling of the snow thermodynamic model SNOWPACK with the Microwave Emission Model for Layered Snowpacks for Snow Water Equivalent (SWE) retrievals. Oral, (Article publié).
• Royer, A., A. Langlois, A. Roy, G. Picard and B. Montpetit. (2012). Improvements in snow monitoring using a coupled snow evolution – microwave emission model. Oral, (Article publié).
• Royer, A, Langlois, A., Derksen, C., Roy, A. , Montpetit, B., Bergeron, J., Picard, G., Brucker, L., Goïta, K. (2012). Improvements in snow monitoring using microwave space-based observations. International Polar Year 2012 Conference. (Article publié).
• Dupont F., G. Picard, A. Royer, M. Fily, A. Roy, N. Champollion. (2012). Modelling the winter microwave emission of the Barnes Ice Cap. MicroRad 2012: 12th Specialist Meeting on Microwave Radiometry and Rem. Sens. of the Enviro. (Article publié).
• Roy, A., Royer, A., Montpetit, B. and A. Langlois. (2012). Models parameterization for SWE retrievals from passive microwave over Canadian boreal forest. Oral, (Article publié).
• Blanchet JP, A. Royer, F. Châteauneuf, T. Ayash, Y. Blanchard, Y. Bouzid, P. Gauthier, N. O'Neill, O. Pancrati and L. Garand. (2012). Space Observations of Thin Ice Clouds and Water Vapour in Cold Polar Conditions. Oral, (Article publié).
• Soliman A., Duguay C., Hachem S. and A. Royer. (2011). ESA's Data User Element (DUE) Permafrost Project: Developing uncertainty indices of operational LST products for the modeling community. American Geophysical Union Fall meeting. (Article publié).
• Bergeron J. M., A. Royer et R. Turcotte. (2011). Estimation de la couverture nivale à partir d’une combinaison des données MODIS et AMSR-E dans un contexte de prévision des crues printanières au Québec. Oral, (Article publié).
• Montpetit B., A. Royer, A. Langlois, A. Roy and P. Cliche. (2011). In-situ Near-infrared reflectance measurements for Snow grain size determination. Oral, (Article publié).
• Royer A., J. Kohn, S. Poirier and M. Fily. (2010). Near-surface air temperature and land-surface temperature retrievals in winter and summer from passive microwave brightness temperature over Northern latitudes. Oral, (Article publié).
• Brucker L., A. Royer, G. Picard, A. Langlois and M. Fily. (2010). Simulation of time evolution of microwave snow TB using coupled snow evolution-emission models. Oral, (Article publié).
• Royer A., Langlois, A. and Goïta, K. (2009). AMSR-E passive microwave brightness temperatures for snow properties retrieval compared with in-situ measurements across a boreal forest to taiga transect in Québec. Oral, (Article publié).
• Proulx, C., Châteauneuf, F., Wang, M., Royer, A., Hamel, J.-F. and J. de Lafontaine, J. (2009). An uncooled mid wave and thermal infrared payload for fire monitoring. Proc. of SPIE Vol. 7474, 74741Q, (Article publié).
• Blanchard Y., A. Royer, N. T. O’Neill and J.-P. Blanchet. (2009). Retrieving cloud optical depth and ice particle size using thermal and far infrared radiometry in an Arctic environement. Proc. IGARSS 09, (Article publié).

Autres contributions

Gestion d'évènements

• Responsable. (2012-2017) Responsable des programmes de 2e et 3e cycle. (Cours).
• Responsable. (2015) Colloque FRQNT sur l'assimilation des températures de brillance micro-onde pour le suivi de l'équivalent en eau de la neige. (Atelier).
• Organisateur. (2015) Eastern Snow Conference. (Conférence).
• Organisateur. (2013) 15e Congrès de l'Association Québécoise de Télédétection. (Conférence).
• Président. (2011-2013) Association Québécoise de Télédétection. (Association).

Activités de collaboration internationale

• Co-responsable. France. Projets de collaborations France-Québec.

Présentations

• A. Royer. (2018). La neige racontée du ciel: Impacts du réchauffement climatique. Conférence invitée au Muséum de Grenoble, Grenoble. Grenoble, France
• A. Royer. (2018). L’Eau et la Glace. International Clean Tech. Week, Festival des technologies vertes, Parc de l'Impérial, Annecy, 21 juin 2018. France
• A. Royer. (2018). Télédétection micro-onde de la cryosphère au Canada. Conférence invitée au Centre d’Études Spatiales de la Biosphère, Toulouse, France. Toulouse, France
• A. Royer. (2018). Télédétection micro-onde de la cryosphère au Canada. Conférence invité au Centre d’Études Spatiales de la Biosphère. Toulouse, France
• A. Royer. (2017). L'observation satellite peut-elle améliorer les modèles d'évolution du couvert nival?. Conférence invité à l'Institut des Géosciences de l’Environnement. Grenoble, France
• A. Royer. (2013). La neige racontée du ciel: Évolution du couvert nival des régions nordiques par satellite : applications climatiques et hydrologiques. Conférence invitée. Trois-Rivières, Canada
• A. Royer. (2013). Pouvons-nous manquer d'eau au Québec? Le défi de la gestion de l'eau dans un monde en changement. Conférence Musée Sciences et Nature de Sherbrooke. Sherbrooke, Canada
• (2012). Alerte en Arctique: le réchauffement s’accélère!. Conférence invitée au CEGEP de Sherbrooke. Sherbrooke, Canada