CREW Staff: G. De Lannoy

Gabriëlle J. M. De Lannoy
Postdoctoral Research Fellow
Center for Research on Environment and Water

4041 Powder Mill Road, Suite 302
Calverton, MD 20705-3106
USA
office: 301/931-7295
fax: 301/595-9790
email gdlannoy@iges.org

Research and Interests

Data assimilation, hydrology, soil moisture, precipitation, snow, groundwater, heat fluxes, spatial and temporal characteristics, remote sensing, modeling, system dynamics and control

Education

2006: PhD in Bio-Engineering Sciences (Ghent University)
2005: Industrial Automation (Institute for Permanent Education, Ghent University)
2003: Academic Teaching Degree (Ghent University)
2001: Bio-engineer in Land and Forest Management - Soil and Water Management (Ghent University)
1996: Secondary school: Greek-Latin (Onze Lieve Vrouw Presentatie - OLVP)

Experience

10/2007-10/2010: FWO Postdoctoral Researcher
07/2006-10/2007: Teaching Assistant (Laboratory for Hydrology and Water Management)
12/2005-06/2006: Research Assistant (Laboratory for Hydrology and Water Management)
Stereo project SR/00/01: Modelling crop growth based on hydrology and assimilation of remotely sensed data
12/2001-12/2005: PhD-student Research Grant BOF 011D2901 - Special Research Fund (BOF) Ghent University (Laboratory for Hydrology and Water Management)
Assimilation of soil moisture into a spatially distributed hydrologic model
08/2000-02/2002: Research Assistant (Laboratory for Hydrology and Water Management & Laboratory for Forest Management)
VLINA-project: Modeling of the impact of vegetation (heather, broadleaf and coniferous forest) in infiltration areas on the water quality of catchments.
Project KULeuven-UGent-KMI: Development of an operational spatial rainfall model for Flanders.

Publications

Reviewed international journal papers:

De Lannoy, G.J.M., Reichle, R.H., Houser, P.R., Arsenault, K.R., Verhoest, N.E.C. and Pauwels, V.R.N. (2009), Satellite-Scale Snow Water Equivalent Assimilation into a High-Resolution Land Surface Model, Journal of Hydrometeorology, submitted.
Pauwels, V.R.N., De Lannoy, G.J.M. (2009). Ensemble-based assimilation of discharge into rainfall-runoff models: a comparison of approaches to mapping observational information to state space, Water Resources Research, 45(8), W08428, doi:10.1029/2008WR007590.
De Lannoy, G.J.M., Houser, P.R., Verhoest, N.E.C., Pauwels, V.R.N. (2009). Adaptive soil moisture profile filtering for horizontal information propagation in the independent column-based CLM2.0, Journal of Hydrometeorology, 10(3), 766-779.
Quets, J.J., De Lannoy, G.J.M., Pauwels, V.R.N. (2009). SWAT parameter optimization in the time and frequency domain for precipitation-discharge processes in the Vergara catchment. Hydrological Processes, conditionally accepted.
De Lannoy, G.J.M., Reichle R.H., Houser P.R., Pauwels V.R.N., Verhoest N.E.C. (2007). Correction to `Correcting for forecast bias in soil moisture assimilation with the Ensemble Kalman Filter', Water Resources Research, 43(10), W10799, doi:10.1029/2007WR006542.
De Lannoy, G.J.M., Houser, P.R., Verhoest, N.E.C., Pauwels, V.R.N., Gish, T. (2007). Upscaling of point soil moisture observations to field averages at the OPE3 site. Journal of Hydrology, 343(1-2), 1-11, doi:10.1016/j.jhydrol.2007.06.004.
De Lannoy, G.J.M., Reichle, R.H., Houser, P.R., Pauwels, V.R.N., Verhoest, N.E.C. (2007). Correcting for forecast bias in soil moisture assimilation with the ensemble Kalman filter. Water Resources Research, 43, W09410, doi:10.1029/2006WR00544.
Pauwels, V.R.N., Verhoest, N.E.C., De Lannoy, G.J.M., Defourny, P., Guissard, V., Lucau, C. (2006). Optimization of a coupled hydrology/crop growth model through the assimilation of observed soil moisture and LAI values using an Ensemble Kalman Filter. Water Resources Research, 43(4), W04421, doi:10.1029/2006WR004942.
De Lannoy, G.J.M., Houser, P.R., Pauwels, V.R.N., Verhoest, N.E.C. (2006). State and bias estimation for soil moisture profiles by an ensemble Kalman filter: effect of assimilation depth and frequency. Water Resources Research, 43(6), W06401, doi:10.1029/2006WR005100.
De Lannoy, G.J.M., Houser, P.R., Pauwels, V.R.N., Verhoest, N.E.C. (2006). Assessment of model uncertainty for soil moisture through ensemble verification. Journal of Geophysical Research, 111, D10101, doi:10.1029/2005JD006367.
De Lannoy, G.J.M., Verhoest, N.E.C., Houser, P.R., Gish, T., Van Meirvenne, M. (2006). Spatial and temporal characteristics of soil moisture in an intensively monitored agricultural field (OPE3). Journal of Hydrology, 331(3-4), 719-730, doi:10.1016/j.jhydrol.2006.06.016.
Pauwels, V.R.N. and De Lannoy, G.J.M. (2006). Improvement of modeled soil wetness conditions and turbulent fluxes through the assimilation of observed discharge. Journal of Hydrometeorology, 7 (3), 458-477.
De Lannoy, G.J.M., Verhoest, N.E.C., De Troch, F.P. (2005) Characteristics of rainstorms over a temperate region derived from multiple time series of weather radar images. Journal of Hydrology, 307 (1-4), 126-144.

Reviewed national journal papers:

De Lannoy, G. (2002). Nowhere has it rained in the same way as it rains in Uccle (Zoals het regent in Ukkel, regent het nergens). Journal of the Royal Flemish Society for Engineering, 6-7, p.58-64. (in Dutch)
Pauwels, V., De Lannoy, G., Verhoest, N. (2006). Combined use of hydrological models and remote sensing for water management, Water, 25, September-October. (in Dutch)
De Lannoy, G.J.M., Pauwels, V.R.N., Verhoest, N.E.C. (2007). Hydrological modeling, forecast errors and data assimilation, Water. (in Dutch)
De Lannoy, G.J.M., Pauwels, V.R.N., Verhoest, N.E.C. (2008). The image of the Earth (Het beeld van de Aarde). Journal of the Royal Flemish Society for Engineering, 11-12, p.22-27. (in Dutch)

Books:

Houser, P., De Lannoy, G.J.M., Walker, J. (2008). Land Surface Data Assimilation, in: Data Assimilation: Making sense of observations (eds. William Lahoz (NILU, Norway), Boris Khatattov (Fusionnumerics, USA) and Richard Menard (MSC, Canada)), Springer, in press.

Conference papers/presentations:

De Lannoy, G., Van Hoydonck, G., Cabus, P., De Schrijver, A., Verhoest, N., Lust, N., De Troch, F. (2001). Deposition and leaching of nutrients under forest and heather in the catchment of the Zwarte Beek. Proceedings of 'Comparison of ecosystem functioning and biogeochemical cycles in temperate forests in Southern Chile and Flanders' (eds. A. De Schrijver, V. Kint, N. Lust), 17-19 September 2001, Academia Press, Ghent, Belgium, 49-57.
Van Hoydonck, G., De Lannoy, G., De Schrijver A., Verhoest N., Lust N., De Troch, F. (2001). Modeling of the impact of vegetation (heather, broadleaf and coniferous forest) in infiltration areas on the water quality of catchments. Proceedings of the Workshop on Forest Conversion (eds. A. De Schrijver, V. Kint, G. Geudens, N. Lust) , Ghent, Belgium, 29 November 2001, 39-48. (in Dutch)
De Jongh, I.L.M., De Lannoy, G.J.M., Verhoest, N.E.C., De Troch, F.P. (2002). Retrieval of the statistical properties of cell cluster positions in rainstorms from radar images. General Assembly of EGS, Nice, France, 22-26 April, 2002.
De Lannoy, G., De Jongh, I., Verhoest, N., De Troch, F. (2002). Parameterization of the movement of rainstorms on radar images. General Assembly of EGS, Nice, France, 22-26 April, 2002.
Verhoest, N., Vernieuwe, H., De Lannoy, G., De Baets, B., De Troch, F., Oyarzun, C. (2002). Comparison of empirical models for predicting the precipitation-discharge behavior of a small temperate rainforest watershed. International Workshop 'Biogeochemical cycles in Temperate Forest Ecosystems', Valdivia, Chile, 11-13 November.
De Jongh, I.L.M., De Lannoy, G.J.M., Verhoest, N.E.C., De Troch, F.P. (2002). Rainstorm characteristics derived from weather radar images. Proceedings of European Conference on Radar Meteorology (ERAD), Delft, Nederland, 18-22 November, 222-226.
O'Neill, P., Joseph, A., De Lannoy, G., Lang, R., Utku, C., Kim, E., Houser, P., Gish, T., Daughtry, C. (2003). Active/passive microwave remote sensing for moisture retrieval through a growing season. Proceedings of ISEMA, p. 342-349
De Lannoy, G.J.M., Houser, P.R., O'Neill, P.E., Gish, T., Verhoest, N.E.C., De Troch, F.P. (2003). Validation of the Community Land Model (CLM2) with field data from the OPE3 field site. EGS-AGU-EGU conference Nice, April 2003
O'Neill, P., Joseph, A., De Lannoy, G., Lang, R., Utku, C., Kim, E., Houser, P., Gish, T. (2003). Soil moisture Retrieval Through Changing Corn Using Actve/Passive Microwave Remote Sensing. Proceedings of IGARSS. Conference in Toulouse (France) in July 2003.
De Lannoy, G.J.M, De Jongh, I.L.M., Verhoest, N.E.C., De Troch, F.P. (2003). Rainstorm characteristics in temperate areas derived from multiple time series of weather radar images. Weather Radar Information and Distributed Hydrological Modelling (Proceedings of symposium HS03 held during IUGG2003 at Sapporo, July 2003), IAHS Publ. no. 282, p.59-65
De Lannoy, G.J.M., Verhoest, N.E.C., De Troch, F.P. (2004). Calibration and state estimation with soil moisture data in a distributed hydrological model. Communications in Agricultural and Applied Biological Sciences, Ghent University, 69/2, p.85-87 (also in poster on the Ph.D. Symposium).
Pauwels, V.R.N. and De Lannoy, G.J.M. (2005) Improvement of modeled soil wetness conditions and turbulent fluxes through the assimilation of observed discharge. EGU Conference Vienna (Austria), 24-29 April, poster presentation.
De Lannoy, G.J.M, Verhoest , N. E. C., Pauwels, V. R. N., Houser, P.R. (2005). Assimilation of small scale soil moisture in a land surface model. 59760L-1-9, SPIE, September, Proceedings of SPIE, Volume 5976, 20-22 September, Eds. M. Owe and G. D'Urso, 59760L-1-9. Remote Sensing for Agriculture, Ecosystems and Hydrology VII, Bruges (Belgium).
Pauwels, V.R.N., Verhoest, N.E.C., De Lannoy G.J.M., Hoeben, R. and De Troch, F.P. (2005). Use of in-situ and remotely sensed observations for the optimization of hydrologic model results, Presented at the Contact Forum Geodesy and Geophysics for the Third Millennium in Belgium, Royal Flemish Academy of Belgium for Sciences and Arts, Brussels, Belgium, 13 October.
De Lannoy, G.J.M., Pauwels, V.R.N., Verhoest, N.E.C., Houser, P.R. (2006). State and bias estimation for soil moisture profiles by an ensemble Kalman filter. EGU Conference Vienna (Austria), 3-7 April, poster presentation.
Pauwels, V.R.N., N.E.C. Verhoest, De Lannoy, G.J.M. (2006). Optimization of a coupled hydrology/crop growth model through the assimilation of observed soil moisture and LAI values using an Ensemble Kalman Filter. EGU Conference Vienna (Austria), 3-7 April.
Pauwels, V.R.N., De Lannoy, G.J.M., Verhoest, N.E.C (2006). Combined use of hydrologic models and remote sensing for water management purposes, Conference on Water System Knowledge, Thematic day 'Surface water quantity', Leuven (Belgium), 12 October, oral presentation. (in Dutch)
De Lannoy, G.J.M., Reichle, R.H., Houser, P.R., Pauwels, V.R.N., Verhoest, N.E.C. (2006). Ensemble Kalman filtering of soil moisture observations with model bias correction. Eos. Trans. AGU, 87(42), Fall Meet. Suppl., Abstract H23E-1554, AGU Conference San Francisco (CA), 18-22 December, poster presentation.
De Lannoy, G.J.M., Houser, P.R., Verhoest, N.E.C., Pauwels, V.R.N. (2007). Assimilation of soil moisture observations in the OPE3 field with horizontal information propagation in the Community Land Model. European Geosciences Union (EGU) General Assembly, Vienna (Austria), 15-20 April, oral presentation.
De Lannoy, G.J.M., Pauwels, V.R.N., Verhoest, N.E.C (2006). Correction of systematic model errors for soil moisture estimation using an Ensemble Kalman Filter, Conference on Water System Knowledge, Thematic day 'Models for integral water management in Flanders', Brussels (Belgium), 3 May, oral presentation.
De Lannoy, G.J.M., Pauwels, V.R.N., Houser, P.R., Gish, T., Verhoest, N.E.C., (2007). Representativeness of point soil moisture observations, upscaling and assimilation. Quantification and Reduction of Predictive Uncertainty for Sustainable Water Resources Management. (Proceedings of Symposium HS2004 at IUGG2007), Perugia (Italy), 9-13 July, IAHS Publ. no 313, p.249-257.
De Lannoy, G.J.M., Reichle, R.H., Houser, P.R., Pauwels, V.R.N., Verhoest, N.E.C. (2007). Dealing with systematic errors in land surface modeling, soil moisture observations and assimilation. Eos. Trans. AGU, AGU Conference San Francisco (CA), 10-14 December, oral presentation (invited).
De Lannoy, G.J.M., Houser, P.R., Pauwels, V.R.N., Verhoest, N.E.C., (2008). Addressing soil moisture model error using adaptive ensemble Kalman filtering. CAHMDA Proceedings, Melbourne, Australia, 9-11 January, CD-ROM.
Verhoest, N.E.C., Lievens, H., Matgen, P., Montanari, M., Vernieuwe, H., De Lannoy, G.J.M., De Baets, B., Hoffmann, L. (2008). Soil moisture retrieval from ALOS PALSAR in the Alzette (Luxembourg) and Zwalm (Belgium) catchments. International Workshop on Microwave Remote Sensing for Land Hydrology Research and Applications, Oxnard, USA, 20-22 October, poster presentation.
Houser, P., De Lannoy, G., Arsenault, K. (2008). Developing a practical snow data assimilation method. Climate Prediction Program for the Americas (CPPA)-PI meeting, 29 September-1 October, poster presentation.
De Lannoy, G.J.M., Houser, P.R. , Verhoest, N.E.C., Pauwels, V.R.N. (2008). Adaptive soil moisture profile filtering for horizontal information propagation in the independent column-based CLM2.0. Eos. Trans. AGU, AGU Conference San Francisco (CA), 15-19 December, poster presentation.
Arsenault, K.A., De Lannoy, G.J.M., Houser, P.R. (2008). Assimilating MODIS Snow Cover Fraction into CLM to Improve Snow Water Equivalent Estimates for Complex Terrain Areas. Eos. Trans. AGU, AGU Conference San Francisco (CA), 15-19 December, oral presentation.
De Lannoy, G., Houser, P., Verhoest, N., Pauwels, V. (2008). Fine-Scale Snow Analyses Improvement Through Coarse-Scale AMSR-E SWE Assimilation. Eos. Trans. AGU, AGU Conference San Francisco (CA), 15-19 December, oral presentation.
Pauwels, V.R.N., De Lannoy, G.J.M. (2008). Ensemble-based assimilation of discharge rates into rainfall-runoff models: an evaluation of the Kalman filter and approximative methods. Eos. Trans. AGU, AGU Conference San Francisco (CA), 15-19 December, poster presentation.
Luo, Y., Houser, P.R., Anantharaj, V., Fan, X., De Lannoy, G.J.M., Dabbiru, L., Turlapaty, A. C., Aanstoos, J. (2008). Potential L-Band Aquarius Radiometer and Scatterometer Soil Moisture Products from an Observing System Simulation Experiment. Eos. Trans. AGU, AGU Conference San Francisco (CA), 15-19 December, poster presentation.
Luo, Y., De Lannoy, G.J.M., Houser, P.R., Zhan,X. (2009). Bias Reduction to Satellite Retrieved Soil Moisture in Land Data Assimilation. AMS 23rd Conference on Hydrology.
Plaza, D., De Lannoy, G.J.M., Pauwels, V.R.N. (2009). The Kalman filter applied to Hydrologic Systems. 28th Benelux meeting on Systems and Control, Spa (Belgium), 16-18 March, poster presentation.
Pauwels, V.R.N, De Lannoy, G.J.M., Komma, J., Bloeschl, G. (2009). Ensemble-based assimilation of discharge into rainfall-runoff models: a comparison of approaches to mapping observational information to state space. European Geosciences Union (EGU) General Assembly, Vienna (Austria), 19-24 April, poster presentation.
De Lannoy, G., Houser, P., Verhoest, N., Pauwels, V. (2008). Fine-Scale Snow Analyses Improvement Through Coarse-Scale AMSR-E SWE Assimilation or Fine-Scale MODIS SCF Assimilation. European Geosciences Union (EGU) General Assembly, Vienna (Austria), 19-24 April, oral presentation.

Special awards

2007 : WMO Research Award for Young Scientists (World Meteorological Organization)
2002 : Title of Golden Engineer of Flanders/Belgium 2001. Award for the best thesis in Engineering (bio-engineering, civil engineering), KVIV (Royal Flemish Society for Engineering)
The article (in Dutch) in 'Het Ingenieursblad' of June, 2002.
1996 : Award for the highest qualified student in secondary school in Greek-Latin with special awards for Latin, French, German, mathematics, physics, geography, religions and esthetics (OLVP)
1995 : Nomination for the Flemish Latin Contest (Cicero)

Last Updated: 21 August 2009