Contact Godelieve Deblonde:

Phone & Address



Member of the American Geophysical Union


Ph.D. Atmospheric Physics, University of Toronto, 1990

M.Sc. Meteorology, Massachusetts Institute of Technology, 1986

B.Sc. (Hons.) Meteorology, McGill University, 1980


Godelieve Deblonde

Research Manager - Data Assimilation and Satellite Meteorology Research Section

CURRENT S&T / RESEARCH - Using atmospheric observations to improve numerical weather and environmental prediction through data assimilation

  • Data assimilation of passive microwave imager radiances in rainy situations. Currently at the Meteorological Service of Canada (MSC), passive microwave radiances are only assimilated in clear-skies
  • Data assimilation of GPS radio-occultation observation, particularly in view of the COSMIC mission (constellation of six satellites launched in April 2006) and its expected impact on temperature forecasts in the upper troposphere and lower stratosphere regions
  • Data assimilation of Zenith Tropospheric Delay observations from ground-based GPS meteorological networks in relation to improvements of moisture and precipitation forecasts over land
  • Data Assimilation of satellite observations containing information on soil moisture for use in the Canadian Land Data Assimilation system (CaLDAS)


Member of the Canadian Space Agency (CSA) Space and Atmospheric Environment Advisory Committee SAEAC (since 2004), meeting twice yearly

EC Atmospheric Science & Technology Manager for the Polar Communications and Weather satellite project

Member of the surface emissivity subgroup of the International A/TOVS Working Group –ITWG. ITWG is a sub-group of the Radiation Commission of the International Association of Meteorology and Atmospheric Sciences (IAMAS)

Under the EUMETSAT/Canada cooperation agreement, point of contact (PoC) for research and product. CSA GRIP (Government Related Initiatives Program) project manager and PoC for MRD


Isaacs, R.G. and G. Deblonde, 1987: Millimeter wave moisture sounding: The effects of clouds, Radio Science, 22, 367-377.

Isaacs, R.G., V.Q. Jin, R.D. Worsham, G. Deblonde and V.J. Falcone, Jr., 1989: The RADTRAN microwave surface emission Models, IEEE Trans. on Geosci. Remote Sensing, 27, 433-440.

Deblonde, G. and W.R. Peltier, 1990: A paleoclimate model of the mid-pleistocene climate transition, Annals of Glaciology, 14, 47-50.

Deblonde, G. and W.R. Peltier, 1990: A model of late Pleistocene ice sheet growth with realistic geography and simplified cryodynamics and geodynamics, Climate Dynamics, 5, 103-100.

Deblonde, G. and W.R. Peltier, 1991: A one dimensional model of the continental ice volume fluctuations through the Pleistocene: Implications for the Origin of the Mid-Pleistocene Climate Transition, J. Climate, 4, 318-­344.

Deblonde, G. and W.R. Peltier, 1991: Simulations of continental ice sheet growth over the last glacial interglacial cycle: Experiments with a one level seasonal energy balance model including realistic geography, J. Geophys. Res., 96, 9189-9215.

Deblonde, G. W.R. Peltier and W.T. Hyde, 1992: Simulations of continental ice sheet growth over the last glacial interglacial cycle: Experiments with a one level seasonal energy balance model including seasonal ice albedo feedback, Palaeogeogr., Palaeoclimatol., Palaeoecol. (Global and Planetary Change Section), 98, 37-55.

Deblonde, G. and W.R. Peltier, 1993: Late Pleistocene ice age scenarios based on observational evidence, J. Climate, 6, 709-727.

Deblonde, G. and J. Cilhar, 1993: A multiyear analysis of the relationship between surface environmental variables and NDVI over the Canadian Landmass, Remote Sensing Reviews, 7, 151-177.

Deblonde, G., M. Penner and A. Royer, 1994: Measuring Leaf area indices with the LI-COR LAI-2000 in pine stands, Ecology, 75, 1507-1511.

Deblonde, G., L. Garand, P. Gauthier and C. Grassotti, 1995: Assimilation of SSM/I and GOES humidity retrievals with a one-dimensional variational analysis scheme, J. Applied Meteorology, 34, 1536-1550.

Penner, M. and G. Deblonde, 1996: The relationship between leaf area and basal area growth in jack pine and red pine trees. Forestry Chronicle, 72, 170-175.

Deblonde, G. and N. Wagneur, 1997: Evaluation of global numerical weather prediction analyses and forecasts using DMSP special sensor microwave imager retrievals. 1. Satellite retrieval algorithm intercomparison study, J. Geophys. Res., 102, 1833-1850.

Deblonde, G., W. Yu, L. Garand and A. Dastoor, 1997: Evaluation of global numerical weather prediction analyses and forecasts using DMSP special sensor microwave imager retrievals, 2. Analyses / forecasts intercomparison with SSM/I retrievals, J. Geophys. Res., 102, 1851-1866.

Deblonde, G., 1999: Variational assimilation of SSM/I total precipitable water retrievals in the CMC analysis system, Monthly Weather Review, 127, 1458-1476.

Deblonde, G., 2001: Variational retrievals using SSM/I and SSM/T -2 brightness temperatures in clear and cloudy situations, J. Atmospheric and Oceanic Tech., 18, 559-576.

L.Garand, D.S. Turner, M. Larocque, J. Bates, S. Boukabara, P. Brunei, F. Chevallier, G. Deblonde, R. Engelen, M. Hollingshead, D. Jackson, G. Jedlovec, J. Joiner, T. Kleespies, D.S. McKague, L. Mcmillin, J.-L. Moncet, J.R. Pardo, P.J. Rayer, E. Salathe, R. Saunders, N.A. Scott, P. Van Deist, and H. Woolf, 2001, Radiance and Jacobian intercomparison of radiative transfer models applied to HIRS and AMSU channels, J. Geophys. Res., 106 D20, 24017-24031.

Ellison, W.J., S.J. English, K. Lambkaouchi, A. Balana, E. Obligis, G. Deblonde, T.J. Hewison, P. Bauer, G. Kelly and L. Eymard, 2003: A comparison of new permittivity data for sea water with AMSU, SSM/I and airborne radiometers. J. Geophys. Res.,108, ACL-1-1- ACL-1-14

Deblonde, G. and S.J. English, 2003: 1D-Var retrievals from SSMIS simulated observations. J. Applied Meteorology, 42, 1406-1420.

Deblonde, G., S. Macpherson, Y. Mireault, and P. Héroux, 2005: Evaluation of GPS precipitable water over Canada and the IGS Network, J. Applied Meteorology, 44, 153-166.

Balsamo, G., J.-F. Mahfouf, S. Bélair and G. Deblonde, 2006: A global root-zone soil moisture analysis using simulated L-band brightness temperature in preparation for the Hydros satellite mission. Journal of Hydrometeorology, 7 (5), 1126-1146.

Deblonde, G., J.-F. Mahfouf, B. Bilodeau, and D. Anselmo, 2006: One-dimensional variational assimilation of SSM/I observations in rainy atmospheres at MSC, Monthly Weather Review, 135, 152-172.

Yingxin Gu, S. Bélair, J.-F. Mahfouf, and G. Deblonde, 2006: A simple data assimilation technique for vegetation leaf area index using MODIS data. Remote Sensing of Environment, 104, 283-296.

Burlaud, C., G. Deblonde, and J.-F. Mahfouf, 2007: Simulations of satellite passive microwave observations in rainy atmospheres at the Meteorological Service of Canada. IEEE Trans. on Geoscience and Remote Sensing. 45, 2276-2286.

Balsamo, G., J.-F. Mahfouf, S. Bélair and G. Deblonde, 2007: A land data assimilation system for soil moisture and temperature: An information content study. Journal of Hydrometeorology. 8, 1225-1242.

Aparicio, J., and G. Deblonde, 2008: Impact of the assimilation of CHAMP refractivity profiles on Environment Canada global forecasts. Monthly Weather Review, 136, 257-275.

Macpherson, S.R., G. Deblonde, J.M. Aparicio, and B. Casati, 2008: Impact of ground-based GPS observations on the Canadian regional analysis and forecast system. Monthly Weather Review, 136, 2727-2746.

Aparicio, J. M., G. Deblonde, L. Garand, and S. Laroche, 2009: Signature of the atmospheric compressibility factor in COSMIC, CHAMP, and GRACE radio occultation data, J. Geophys. Res., 114, D16114, doi:10.1029/2008JD011156.

Expertise Categories associated with this S&T Expert:

          Data assimilation
Weather & Meteorology
     Atmospheric Modelling
          Numeric modelling
          Radiative transfer
          Remote sensing
          Radiative transfer
          Remote sensing
          GPS radio-occultation
Date modified: