Royer, Alain

Professeur associé, Faculté des lettres et sciences humaines
FLSH Géomatique appliquée

Coordonnées

Courriel


819-821-8000, poste 62286


Site Web

Diplômes

(1981) Doctorat (Doctorat). Université de Grenoble I - Joseph Fourier.

(1977) Maîtrise avec mémoire (Maîtrise - Maîtrise). Université de Grenoble I - Joseph Fourier.

(1975) Baccalauréat (Baccalauréat). Université de Grenoble I - Joseph Fourier.

Titres de compétence

(2015) Professeur associé. Université du Québec à Montréal.

Professeur titulaire. Université de Sherbrooke.

Expérience académique

(2017-2018) Professeur invité. Université Grenoble-Alpes.

Présentation

Sujets de recherche

Caractérisation des surfaces, Changements climatiques, impacts, Télémétrie (télédétection, radar), Glace et neige, Risques naturels.

Disciplines de recherche

Climatologie et météorologie.

Mots-clés

Environnement nordique, Physique de la mesure en télédétection, changement climatique, Nivologie et hydrologie de surface, climatologie, Processus de surface, télédétection multispectrale VIS-IRT-Micro-onde, transfert radiatif.

Intérêts de recherche

Physique de la mesure en télédétection appliquée à la géophysique de l'environnement: développement de nouveaux indicateurs des changements de l'environnement global à l'échelle du Canada. Étude de l'impact des changements climatiques dans les régions nordiques.

Langues parlées et écrites

Anglais, Français

Financement

Subvention. (En cours d’évaluation). Co-demandeur. 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. 1650000 $ (2020-2026).

Subvention. (En cours d’évaluation). Co-demandeur. 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). 300000 $ (2020-2023).

Subvention. (En cours d’évaluation). Co-chercheur. Multidisciplinary Observatory for Arctic Climate Change and Extreme Events Monitoring in the Kitikmeot region. Polar Knowledge Canada. Research Funding. 814893 $ (2020-2023).

Subvention. (Obtenu). Co-demandeur. Centre d'Applications et de Recherches en Télédétection (CARTEL). Université de Sherbrooke. Centres d'Excellences. 90000 $ (2019-2021).

Subvention. (Obtenu). Co-chercheur. 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. 333250 $ (2018-2021).

Subvention. (Obtenu). Co-chercheur. 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. 25000 $ (2017-2020).

Subvention. (Obtenu). Co-chercheur. 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). Équipe. 190738 $ (2017-2020).

Subvention. (Terminé). Co-chercheur. Centre d'applications et de recherches en télédétection. Université de Sherbrooke. Centre d'excellence. 90000 $ (2017-2019).

Subvention. (Terminé). Co-chercheur. Development of a multi-scale cryosphere monitoring network for the Kitikmeot region and Northwest territories using modeling and remote sensing. Savoir polaire Canada (POLAIRE). Polar Knowledge Canada. 249953 $ (2017-2019).

Subvention. (Terminé). Chercheur principal. Development of an autonomous radar for remotely measuring snow and ice thickness over lakes. Conseil de Recherches en Sciences Naturelles et Génie du Canada (CRSNG). RDC. 42000 $ (2016-2017).

Contrat. (Terminé). Chercheur principal. Collaboration projet PAGE21 pergélisol. Laboratoire de glaciologie et géophysique de l'environnement. ANR France. 5500 $ (2015-2016).

Publications

Articles de revue

  • 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).
  • 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, (#486981), (Article accepté).
  • 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).
  • Vargel V.*, A. Royer, O. St-Jean-Rondeau*, G. Picard, A. Roy, V. Sasseville* and A. Langlois. (2019). Arctic and Subarctic snow microstructure analysis for microwave brightness temperature simulations. Remote Sensing of Environment, RSE-S-19-01661, (Article soumis).
  • D. Kramer, J. Meloche*, A. Langlois, D. McLennan, B. Chapdelaine, C. Gauthier-Barrette, A. Royer 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. Polar Knowledge: Aqhaliat 2019, (Article soumis).
  • 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).
  • 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

  • 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 accepté).
  • 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).
  • 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. (2009-2020). France. Projets de collaborations France-Québec.
  • Membre du comité. (2014). Chine. Délégation Québécoise pour la recherche en environnement et changement climatique - Relations Québec-Chine (FQRNT).

Présentations

  • A. Royer. (2018). L'observation satellite peut-elle améliorer les modèles d'évolution du couvert nival?. Conférence invitée à l'Institut des Géosciences de l’Environnement, Bâtiment Glaciologie, Grenoble, France, 26 septembre 2018. Grenoble, France.
  • 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.
  • A. Royer. (2013). The research programme at CARTEL, Université de Sherbrooke. Applications to cryospheric studies. Séminaire invitée. Beijing, Chine.
  • (2012). Alerte en Arctique: le réchauffement s’accélère!. Conférence invitée au CEGEP de Sherbrooke. Sherbrooke, Canada.