Valérie DEMAREZ



Maître de Conférence à l'Université Paul Sabatier - Toulouse - Section CNU: 67

Adresse : Centre d’Etudes Spatiales de la Biosphère UMR 5126
(UPS, CNRS, CNES, IRD)
18 avenue Edouard Belin 31401 Toulouse Cedex 4

tel : [33] (0)5 61 55 85 36
Fax : [33] (0)5 61 55 85 00

valerie.demarez@cesbio.cnes.fr

  • Thèmes de recherche développés depuis 2005
  • Spatialisation des modèles agrométéo via les données de télédétection HRST (FORMOSAT, SPOT6..)
  • Suivi des besoins en eau des cultures
  • Modélisation du Transfert radiatif
  • Expérimentation

Publications


Accepted

S. Ferrant, S. Gascoin, A. Veloso, J. Salmon-Monviola, M. Claverie, V. Rivalland, G. Dedieu, V. Demarez, E. Ceschia, J.-L. Probst, P. Durand, and V. Bustillo (accepted)

"Agro-hydrology and multi temporal high resolution remote sensing: toward an explicit spatial processes calibration", Hydrol. Earth Syst. Sci. Discuss., 11, 7689-7732, doi:10.5194/hessd-11-7689-2014

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Estimation of LAI,fAPAR and fCover of Sahel rangelands (Gourma,Mali) E. Mougin, V. Demarez, M. Diawara, P. Hiernaux, N. Soumaguel, A. Berg Agricultural and Forest Meteorology 198–199 (2014) 155–167

Claverie M, Vermote E, Weiss M, Baret F, Hagolle O, Demarez V. Validation of coarse spatial resolution LAI and FAPAR time series over cropland in southwest France. Remote Sensing of Environment. 2013;139 216-230.

Dejoux J.-F., Dedieu G., Hagolle O., Ducrot D., Menaut J.-C., Ceschia E., Baup F., Demarez V., Marais-Sicre C., Kadiri M., Gascoin S., 2012. Kalideos OSR MiPy : un observatoire pour la recherche et la démonstration des applications de la télédétection a la gestion des territoires. Revue Française de Photogrammétrie et de Télédetection n° 197, p. 17-30.

Claverie, M.; Demarez V.; Duchemin, B.; Hagolle, O.; Ducrot, D.; Marais-Sicre, C.; Dejoux, J.F.; Huc, M.; Keravec, P.; Béziat, P.; Fieuzal, R.; Ceschia, E.; Dedieu, G., Crop biomass estimation using high spatial and temporal resolution remote sensing data, Remote Sensing of Environment, Volume 124, September 2012, Pages 844-857. (IF 2010: 3.95; IF 5-years: 4.6)

Seguis L. , N. Boulain , B. Cappelaere , J.M. Cohard , G. Favreau , S. Galle , A. Guyot , P. Hiernaux , E. Mougin , C. Peugeot , D. Ramier , J. Seghieri , F. Timouk , V. Demarez , J. Demarty , L. Descroix , M. Descloitres , M. Grippa , F. Guichard , B. Kamagate , L. Kergoat , T. Lebel , V. Le Dantec , M. Le Lay , S. Massuel , V. Trichon. Contrasted land-surface processes along the West African rainfall gradient , Atmospheric Science Letters 12, 1 (2011) 31-37 (IF 2010: 1.43)

Gouasmi M. Mordelet P., Demarez V., Gastellu-Et, Le Dantec V., Dedieu G., Menaut J.C., Calvet J.C et Lamaze Thierry, 2009, Photosynthesis of a temperate fallow C3 herbaceous ecosystem: measurements and model simulations at the leaf and canopy levels, Photosynthetica, Photosynthetica (2009) 1-10. (IF 2010: 1.16; IF 5-years: 1.2)

Gastellu-Etchegorry J.P., Auda Y., Martin E., Brut A., Demarez V., Grau E., Rubio J., Benech N., Suere C., Solignac P.A., Groussous A., Belot A., Henry P., Bernat V., Precheur G , 2009, DART : modèle physique 3D d'images de télédétection et du bilan radiatif et de paysages urbains et naturels, Télédétection (ISSN : 1028-7736), Vol8-3, p159-167. (En cours d'indexation)

Timouk F., Kergoat L., Mougin E., Lloyd C.R., Ceschia E., Cohard J.M., De Rosnay P., Hiernaux P., Demarez V., Taylor C.M., Response of surface energy balance to water regime and vegetation development in a Sahelian landscape, Journal of Hydrology (2009) 1-43 (IF 2010: 2.51; IF 5-years: 3.11)

Mougin E., Hiernaux P., Kergoat L., Grippa M., De Rosnay P., Timouk F., Le Dantec V., Demarez V., Lavenu F., Arjounin M. et al, The AMMA-CATCH Gourma observatory site in Mali : relating climatic variations to changes in vegetation, surface hydrology, fluxes and natural resources, Journal of Hydrology (2009) (IF 2010: 2.51; IF 5-years: 3.11)

Duthoit, S., Demarez V., J. P.Gastellu-Etchegorry, E. Martin, J.L. Roujean, 2008, Assessing the effects of the clumping phenomenon on BRDF of a maize crop based on 3D numerical scenes using DART model ,Agricultural and Forest Meteorology,Volume 148, Issues 8-9, Pages 1341-1352. (IF 2010: 3.22; IF 5-years: 4.02)

Demarez V.,Duthoit S., Baret F., Weiss M., Dedieu G., 2008, Estimation of leaf area and clumping indexes of crops with hemispherical photographs, Agricultural and Forest Meteorology, Volume 148, Issue 4, Pages 644-655. (IF 2010: 3.22; IF 5-years: 4.02)

Demarez V., Gastellu-Etchegorry J.P., Mordelet P., Tosca C., MartyG., Guillevic P.,2000, Modeling of the radiation regime and photosynthesis of a finite canopy using the DART model. Influence of canopy architecture assumptions and border effects, J Agronomy , 20:259-270. (IF 2010: 1.79; IF 5-years: 2.08)

Demarez V., Gastellu-Etchegorry J.P., 2000, A modeling approach for studying forest chlorophyll content, Remote Sens. Environ.,71:226-238. (IF 2010: 3.95; IF 5-years: 4.6)

Demarez V., Gastellu-Etchegorry J.P., Mougin E., Dufrêne E., MartyG., 1999, Seasonal variation of leaf chlorophyll content of a temperate forest -Inversion of the PROSPECT model-, Int. Journal.of Rem. Sens.; vol 20, no5, p. 879-894. (IF 2010: 1.18; IF 5-years: 1.55)

Gastellu-Etchegorry J.P., Guillevic P., Zagolski F., Demarez V.,Trichon V., Deering D., Leroy M., 1998, Modeling BRF and Radiation Regime of Tropical and Boreal Forests -PART I : BRF-, Remote Sens.Environ, 68:281-316. (IF 2010: 3.95; IF 5-years: 4.6)

Gastellu-Etchegorry J.P., Demarez V., Pinel V. and Zagolski F., 1996, Modeling radiative transfer in heterogeneous 3-D vegetation canopies, Remote Sens. Environ., 58:131-156. (IF 2010: 3.95; IF 5-years: 4.6)

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