Alain RoyerAlain Royer - CARTEL research member

Full Professor

Contact information

Faculty webpage

 

Doctoral project available

Masters project available

 

Postdoctoral Researchers and Graduate Students


Current research highlights


Other activities


Publications


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    2013

  • Picard, G., Brucker, L., Roy, A., Dupont, F., Fily, M., Royer, A., and Harlow, C.: Simulation of the microwave emission of multi-layered snowpacks using the Dense Media Radiative transfer theory: the DMRT-ML model, Geosci. Model Dev., 6, 1061-1078, doi:10.5194/gmd-6-1061-2013, 2013.
  • Roy, A., Royer, A., Montpetit, B., Bartlett, P.A., and Langlois, A. (2013) Snow specific surface area simulation using the one-layer snow model in the Canadian LAnd Surface Scheme (CLASS). The Cryosphere, 7, 961-975, doi:10.5194/tc-7-961-2013

  • 2012

  • Derksen, C., Smith, S. L., Sharp, M., Brown, L., Howell, S., Copland, L., Muelle, D. R., Gauthier, Y., Fletcher, C., Tivy, A., Bernier, M., Bourgeois, J., Brown, R., Burn, C. R., Duguay, C., Kushner, P., Langlois, A., Lewkowicz, A. G., Royer, A. and Walker, A. 2012. Varianility and change in the canadian cryosphere, Climatic Change, DOI: 10.1007/s10584-012-0470-0.
  • 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. Hydrol. Process.. doi: 10.1002/hyp.9382 pdf
  • Dupont, F., Picard, G., Royer, A., Fily, M., Langlois, A., Roy, A., and Champollion, N. 2012. 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, Submitted, TGRS_2012-01104.
  • Kohn, J. and A. Royer, (2012) Microwave brightness temperature as an indicator of near-surface air temperature over snow in Canadian northern regions. International Journal of Remote Sensing, 33:4, 1126-1138. http://dx.doi.org/10.1080/01431161.2010.550643. Kohn and Roy 2012
  • Langlois, A., A. Royer, C. Derksen, B. Montpetit, F. Dupont, and K. Goïta (2012), Coupling the snow thermodynamic model SNOWPACK with the microwave emission model of layered snowpacks for subarctic and arctic snow water equivalent retrievals, Water Resour. Res., 48, W12524, doi:10.1029/2012WR012133. Kohn and Roy 2012
  • Montpetit B., Royer, A., Roy, A., Langlois, A. and Derksen, C. 2012. Snow microwave emission modeling of ice lenses within the snowpack using the Microwave Emission Model for Layered Snowpacks (MEMLS), Hydrological Processes, Submitted March 2012.
  • Montpetit B., Royer A., Langlois A., Cliche P., Roy A., Champollion N., Picard G., Domine F., Obbard R. 2012. New short wave infrared albedo measurements for snow specific surface area retrieval, Journal of Glaciology, vol. 58, no. 211, doi: 10.3189/2012JoG11j248. Mora2012
  • Roy, A., Picard, G., Royer, A., Montpetit, B., Dupont, F., Langlois, A., and Derksen, C. 2012. Snow brightness temperature simulations driven by measurements of the specific surface area of snow grains, IEEE Transactions on Geoscience and Remote Sensing, Accepted, TGRS-2012-00591.
  • Roy, A., Royer, A., Montpetit, B, Bartlett, P.A, Langlois, A., 2012. Snow specific surface area simulation using the one-layer snow model in the Canadian LAnd Surface Scheme (CLASS), The Cryosphere, TC-2012-189.
  • Roy, A., Royer, A., Wigneron, J.-P., Langlois, A., Bergeron, J., Cliche, P. 2012. A simple parameterization for a boreal forest radiative transfer model at microwave frequencies. Remote Sensing of Environment, 124, doi: 10.1016/j.rse.2012.05.020.
  • Rutter, N., Sandells, M., Derksen, C., Royer, A., Lemmetyinen, J., Toose, P., Montpetit, B., Langlois, A., and Pulliainen, J. 2012. Snow stratigraphic heterogeneity within ground-based passive microwave radiometer footprints: implications for emission modelling, Journal of Geophysical Research, submitted, September 27th 2012.

  • 2011

  • Brucker, L., Royer, A., Picard, G., Langlois, A. and Fily, M. 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, pp. 1966-1977. doi:10.1016/j.rse.2011.03.019 pdf
  • 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, Vol. 49(10 PART 2), art. no. 5771614, pp. 3824-3837. pdf
  • Toure, A.M., Goïta, K., Royer, A., Kim, E.J., Durand, M., Margulis, S.A., Lu, H. (2011) A case study of using a multilayered thermodynamical snow model for radiance assimilation. IEEE Transactions on Geoscience and Remote Sensing, Vol.49 (8), art. no. 5756663, pp. 2828-2837. pdf

  • 2010

  • Kohn J. and A. Royer (2010), AMSR-E data inversion for soil temperature estimation under snow cover, Remote Sens. Environ., 114(12), 2951–2961. pdf
  • 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. pdf
  • Langlois, A., Royer, A., Montpetit, B., Picard, G., Brucker, L., Arnaud L., Harvey-Collard, P., Fily, M. and Goïta, K. (2010) On the relationship between snow grain morphology and in-situ near infrared calibrated reflectance photographs. Cold Regions Science and Technology, 61, pp. 34-42. doi:10.1016/j.coldregions.2010.01.004 pdf
  • Roy, A., Royer, A., and Turcotte, R. (2010) Analyse de l'identification de la fonte de neige printanière avec QuickSCAT dans le sud du Québec, Canada, Journal canadien de télédétection, 36(2), pp. 89-98. pdf
  • Roy, A., Royer, A., and Turcotte, R. (2010) Improvement of springtime streamflow simulations in a boreal environment by incorporating snow-covered area derived from remote sensing data, Journal of Hydrology, Vol.390, pp.35-44. pdf
  • 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. Journal of Geophysical Research, 115, D08110, DOI:10.1029/2009JD012760. pdf
  • Royer, A., K. Goïta, J. Kohn, and D. DeSève (2010). Monitoring dry, wet, and no- snow conditions from microwave satellite observations. IEEE Geos. Remote Sens. Letters, Vol. 7, No. 4, pp. 670-674. DOI: 10.1109/LGRS.2010.2045733 pdf
  • Turcotte, R., Fortier Filion, T.-C., Lacombe, P., Fortin, V., Roy, A. and Royer, A. (2010) Simulation hydrologique des derniers jours de la crue de printemps: le problème de la neige manquante, Hydrological Sciences Journal, 55(6), 872-882.
    doi: 10.1080/02626667.2010.503933 pdf
  • Vachon, F., Goïta, K., De Sève, D., and 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, Vol. 48, Issue 1, pp. 59-71, DOI: 10.1109/TGRS.2009.2026892. pdf

  • 2009

  • Langlois, A., Brucker, L., Kohn, J., Royer, A., Derksen, C., Cliche, P., Picard, G., Willemet, J.M., and Fily, M. (2009). Simulation of Snow Water Equivalent (SWE) using Thermodynamic Snow Models in Québec, Canada. Journal of Hydrometeorology, 10(6), 1447-1462 DOI: 10.1175/2009JHM1154.1 pdf
  • 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 vol. 47(36), p. 6723-6733, doi :10.1364/AO.47.006723. pdf

  • 2008

  • 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, vol. 7, p. 373-391. pdf
  • Royer A., F. Becker et P. Gagnon (2008), Trente-cinq ans d'observation de la Terre : de la photographie à l'électromagnétométrie, Télédétection, vol.7, p. 65-88. pdf
  • Royer, A., M. Fily, G. Picard (2008). Évolution des températures de surface des régions polaires et subarctiques par télédétection satellite. Lettre PIGB-PMRC France, no 21, Changement global.

  • 2007

  • Bokoye, A.I., A. Royer, P. Cliche, N. O'Neill, Calibration of Sun Radiometer-Based Atmospheric Water Vapor Retrievals Using GPS Meteorology, Atmo. Ocean. Tech., 24, No 6, 964-979, 2007. DOI: 10.1175/JTECH2011.1 pdf
  • Mialon, A., Royer, A., Fily, M., Picard, G. (2007). Daily microwave-derived surface temperature over Canada/Alaska. Journal of Applied Meteorology and Climatology, Vol. 46, No. 5, 591–604. DOI: 10.1175/JAM2485.1 pdf
  • Pardé, M., K. Goïta, A. Royer (2007). Inversion of a passive microwave snow emission model for water equivalent estimation using airborne and satellite data. Remote Sensing of Cryosphere Special Issue of Remote Sensing of Environment, Vol. 111 (2007), p. 346-356. pdf

  • 2005

  • Mialon, A., Royer, A., Fily, M. (2005). "Wetland Seasonal Dynamics and Interannual Variability over Northern High Latitudes, derived from Microwave Satellite Data". Journal of Geophysical Research - Atmospheres, vol. 110, D17102, doi:10.1029/2004JD005697pdf
  • Pardé, M., K. Goïta, A. Royer, F. Vachon (2005). "Boreal Forest Transmissivity in the Microwave Domain Using Ground-Based Measurements". IEEE Geosciences and Remote Sensing Letters. 10.1109/LGRS.2004.842469. pdf
  • Royer, A., F. Nerry and F. Chagnon (2005). "Thermal Indetermination: The Problem of Separation of Emissivity and Temperature". Physics in Canada/La Physique au Canada, septembre/octobre 2005, vol. 61, no 5, p. 291-296. pdf

  • 2004

  • Bertrand, C., A. Royer (2004). "Aerosol optical depth spatio-temporal characterization over the Canadian BOREAS domain". International Journal of Remote Sensing, August 2004, vol. 25, no 15, p. 2903-2917. pdf
  • Langlois, A., A. Royer, E. Fillol, A. Frigon and R. Laprise (2004). Evaluation of the snow cover variation in the Canadian Regional Climate Model over eastern Canada using passive microwave satellite data. Hydrological Processes, no 18, p. 1127-1138. DOI: 10.1002/hyp.5514 pdf
  • O'Neill, N. T., K. B. Strawbridge, S. Thulasiraman, J. Zhang, A. Royer, and J. Freemantle (2004). Optical coherency of sunphotometry, sky radiometry and lidar measurements during the early phase of Pacific 2001. Atmospheric Environment, vol. 38, p. 5887-5894. pdf
  • Payan, V. et A. Royer (2004). « Analysis of Temperature Emissivity Separation (TES) algorithm applicability and sensitivity ». International Journal of Remote Sensing, January 2004, vol. 25, no 1, p. 15-37. pdf
  • Payan, V. et A. Royer (2004). "Spectral emissivity of northern land cover types derived with MODIS and ASTER sensors in MWIR and LWIR". Research Note, Canadian Journal of Remote Sensing, vol. 30(2), p. 150-156. pdf
  • Roy, V., K. Goïta, A. Royer, A.E. Walker, B.E. Goodison (2004). "Snow Water Equivalent Retrieval in a Canadian Boreal Environment From Microwave Measurements Using the HUT Snow Emission Model". IEEE Transactions on Geoscience and Remote Sensing. Sept. 2004, vol. 42, no 9, p. 1850-1859. pdf
  • Vachon F., A. Royer, M. Aubé, B. Toubbé, N. T O'Neill and P. M. Teillet (2004). "Remote Sensing of Aerosols over North American Land Surfaces from POLDER and MODIS Measurements". Atmospheric Environment , vol. 38, p. 3501-3515. pdf

  • 2003

  • Bokoye, A.I., A. Royer, N.T. O'Neill, P. Cliche, L.J.B. McArthur, P.M. Teillet, G. Fedosejevs, J.-M. Thériault (2003). "Multisensor analysis of integrated atmospheric water vapour over Canada and Arctic". Journal of Geophysical Research, vol. 108, no 15, p. 21/1-21/16. doi:10.1029/2002JD002721 pdf
  • Fily, M., A. Royer, K. Goïta and C. Prigent (2003). "A simple retrieval method for land surface temperature and fraction of water surface determination from satellite microwave brightness temperatures in sub-arctic areas". Remote Sensing of Environment, vol. 85, p. 328 -338. doi:10.1016/S0034-4257(03)00011-7 pdf

  • 2002

  • Bokoye, A.I., A. Royer, N.T. O'Neill and L.J.B.McArthur (2002). "A North American Arctic Aerosol Climatology using Ground-Based Sunphotometry". Arctic, sept. 2002, vol. 55, no 3, p. 215-228. pdf
  • Haboudane, D., F. Bonn, S. Sommer, W. Mehl et A. Royer (2002). "Land degradation and erosion risk mapping by fusion of spectrally-based information and digital geomorphometric attributes". International Journal of Remote Sensing, sept. 2002, vol. 23, no 18, p. 3795-3820.
  • Nadeau, C., A. Neville, K. Staenz, N.T. O'Neill and A. Royer (2002). "Atmospheric effects on the classification of surface minerals in an arid region using Short-Wave Infrared (SWIR) hyperspectral imagery and a spectral unmixing technique". Canadian Journal of Remote Sensing, déc. 2002, vol. 28, no 6, p. 738-749.
  • O'Neill, N. T. , T.F. Eck, B.N. Holben, A. Smirnov, A. Royer et Z. Li, (2002). "Optical properties of Boreal Forest Fire Smoke Derived from Sun photometry", Journal of Geophysical Research, juin 2002, vol. 107, No D 11, p. 6.1-6.19. 10.1029/2001JD000877 pdf Correction
  • Royer, A., F. Nerry et F. Bonn (2002). « Proposition d'une nouvelle terminologie : l'infrarouge médian ». Télédétection, mai 2002, vol. 2, no 3, p. 177-182.
  • Thulasiraman, S., N.T. O'Neill, A. Royer, B.N. Holben, D. Westphal, L. J. B. McArthur, (2002),. "Sunphotometric observations of the 2001 Asian dust storm over Canada and the U.S.", Geophysical Research Letters, avril 2002, vol. 29, no 8, p. 1255-1258.

  • 2001

  • Bokoye, A. I., A. Royer, N. T. O'Neill, P. Cliche, G. Fedosejevs, P.M. Teillet and B. McArthur (2001). "Characterization of atmospheric aerosols accross Canada from a ground-based sunphotometer network : AEROCAN". Atmosphere-Ocean (accepté en avril 2001).
  • Haboudane, D., F. Bonn, S. Sommer, W. Mehl et A. Royer (2001). "Land degradation and erosion risk mapping by fusion of spectrally-based information and digital geomorphometric attributes". International Journal of Remote Sensing (accepté le 01-07-2000).
  • Haboudane, D., F. Bonn, S. Sommer, W. Mehl et A. Royer (2001). "Land degradation and erosion risk mapping by fusion of spectrally-based information and digital geomorphometric attributes". International Journal of Remote Sensing (accepté le 01-07-2000).
  • O'Neill, N.T., T.F. Eck, B.N. Holben, A. Smirnov, O. Dubovik and A. Royer (2001). Bimodal size distribution influences on the variation of Angstrom derivatives in spectral and optical depth space. Journal of Geophysical Research, Vol. 106, No. D9, p. 9787-9806. pdf
  • Royer, A., F. Nerry et F. Bonn (2001). « Proposition d'une nouvelle terminologie : infrarouge médian ». Télédétection. (accepté début 2001).

  • 2000

  • Fedosejevs, G.; O'Neill, N. T.; Royer, A.; Teillet, P. M.; Bokoye A. I. and McArthur, B. (2000). "Aerosol Optical Depth for Atmospheric Correction of AVHRR Composite Data". Canadian Journal of Remote Sensing vol. 26 no 4, p. 273-284.
  • Vallée, G., A. Royer, P. Cliche and F. Nerry (2000). "Potential of Thermal Infrared Multispectral Emissivity Measurements for Monitoring soil Moisture content by Remote Sensing". International Journal of Remote Sensing (accepté début 2001).

  • 1999

  • Romanov, P., N.T. O'Neill, A. Royer et B. McArthur (1999). "Simultaneous retrieval of aerosol refractive index and particle size distribution from ground based measurements of direct and scattered solar radiation". Applied Optics, vol. 38, No 36, pp. 7305-7320.
  • Zagolski, F., N.T. O'Neill, A. Royer and J. Miller (1999). "Validation of a DDV-based aerosol depth retrieval algorithm using multialtitude spectral imagery". Journal of Geophysical Research-Atmospheres, 104 (D22), pp. 27959-27971..

  • 1998

  • Bergeron, M., N.T. O'Neill, A. Royer et P.M. Teillet (1998). "Development of a spectral Error Model for Surface Bidirectional Reflectance Factor (BRF) Retrieval". Canadian Journal of Remote Sensing, vol 24, no 2, p. 128-132, juin 1998.
  • Molineaux, B., A. Royer and N.T. O'Neill (1998). "Retrieval of Pinatubo aerosol optical depth and surface bidirectional reflectance from six years of AVHRR Global Vegetation Index data over boreal forests". Journal of Geophysical Research, vol. 103, no. D2, p. 1847-1856.
  • Traoré , P.C.S., A. Royer and K. Goïta (1998). "Land surface temperature time series derived from weekly AVHRR GVI composite datasets : potential and constraints for northern latitudes". Canadian Journal of Remote Sensing, vol. 23, no. 4, p. 390-400.

  • 1997

  • Goïta, K., A. Royer and N. Bussières (1997). "Characterization of land surface thermal structure from NOAA-AVHRR data over a northern ecosystem". Remote Sensing of Environment, vol. 60, p. 282-298.
  • Goïta, K. and A. Royer (1997). "Surface temperature and emissivity separability over land surface from combined TIR and SWIR AVHRR data" IEEE Transactions on Geoscience and Remote Sensing, vol. 35, no 3, p. 718-733.
  • O'Neill, N.T., F. Zagolski, M. Bergeron, A. Royer, J.R. Miller and J. Freemantle (1997) Atmospheric correction validation of CASI images acquired over the BOREAS southern study area. Journal canadien de télédétection, vol. 23, no 2, p. 143-162. article figs tables&captions
  • O'Neill, N.T., A. Royer, Q.F. Xu and P.M. Teillet (1997). "Retrieval of atmospheric optical parameters from airborne flux measurements: application to the atmospheric correction of imagery". Applied Optics, vol. 36, no. 3, p. 662-674.
  • Royer, A., K. Goïta, C. Ansseau, A. Faizoun et G. Saint (1997). "Analysis of Boreal Forest Dynamics Using the Global Vegetation Index". Remote Sensing Reviews, vol. 15, p. 265-282.
  • Soufflet, V., D. Tanré, A. Royer and N.T. O'Neill (1997). "Remote sensing of aerosols over boreal forest and lake water from AVHRR data". Remote Sensing of Environment, vol. 60, p. 22-34.

  • 1996

  • Smirnov, A., N.T. O'Neill, A. Royer, A. Tarussov and B. McArthur (1996). "Aerosol optical depth over Canada and the link with synoptic air mass types". Journal of Geophysical Research, vol. 101, no D14, p. 19299-19318.

  • 1995

  • Smirnov, A., Y.V. Villevalde, N.T. O'Neill, A. Royer and A. Tarussov (1995). "Aerosol optical depth over the oceans: analysis in terms of synoptic air mass types". Journal of Geophysical Research, vol. 100, no. D8, p. 16639-16650.
  • Viau, A., A. Royer, C. Ansseau et J. Boivin (1995). « Analyse régionale de simulations climatiques au Québec du modèle de circulation générale du Centre climatique canadien ». Atmosphère-Océan, vol. 33, no 3, p. 389-406.

  • 1994

  • Deblonde, G., M. Penner and A. Royer (1994). "Measuring leaf area index with the LI-COR LAI-2000 in pine stands". Ecology, vol. 75, no. 5, p. 1507-1511. pdf
  • Goïta, K., R. Gonzales-Rubio, G.B. Bénié, A. Royer et F. Michaud (1994). « Une revue de littérature des réseaux neuromimétiques et des systèmes à base de connaissances dans l'analyse et l'interprétation d'images en télédétection ». Revue canadienne de génie électrique et informatique, vol. 19, no 2, p. 53-61.
  • Lanciault, P., A. Royer et C. Ansseau (1994). « Relations entre la réflectance spectrale satellitaire et les paramètres forestiers de la forêt boréale québécoise ». Journal canadien de télédétection, vol. 20, no 2, p. 116-122.
  • Smirnov, A., A. Royer, N.T. O'Neill and A. Tarussov (1994). "A study of the link between synoptic air mass type and atmospheric optical parameters". Journal of Geophysical Research, vol. 99, no D10, p. 20967-20982.

 

Books

2006

  • Bonn, F., Rochon, G., et Royer, A. (2006). « Précis de télédétection », vol. 1, 2e édition, PUQ-AUF, 500 pages.

1996

  • Achard, F., C. Ansseau, J. Beaubien, F. Bonn, P. Defourny, A. Jaton, A. Royer et K. Thomson (1996). La télédétection des forêts, in Bonn, F. (réd.) Précis de télédétection : volume 2 - Applications thématiques, Presses de l'Université du Québec/AUPELF, Ste-Foy et Montréal, pp. 225-265.
  • Seguin, B, A. Royer, G.-H. Lemieux et F. Bonn (1996). La télédétection appliquée à l'étude de l'atmosphère et du climat, in Bonn, F. (réd.) Précis de télédétection : volume 2 - Applications thématiques, Presses de l'Université du Québec/AUPELF, Ste-Foy et Montréal, pp. 139-158.

1994

  • Bonn, F. et A. Royer (1994). SIG et environnement: l'apport des données spatiales, Université d'été internationale ìEspace et Environnementî, CNES, Brest (France), coll. Enseignement et espace, Dépaduès-Éditions, pp. 239-266.
  • Royer, A., C. Ansseau, A. Viau, A. Thériault, F. Bonn, N.T. O'Neill, H.B. Granberg, B. Singh, P. Schuepp, J. Beaubien et J. Cihlar (1994). Impact des changements de l'environnement global sur la forêt boréale au Québec, in Bonn, F.J. (éd.), Télédétection de l'environnement dans l'espace francophone, Presses de l'Université du Québec et ACCT, pp. 305-330.