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Valérie Demarez

Directrice de CESBIO depuis janvier 2024
56
Documents

Presentation

Professeure à l'université Toulouse III - Ma thématique de recherche est centrée sur la gestion de la ressource en eau à l'échelle des territoires, en utilisant des approches de modélisation et de télédétection. Disciplines enseignées: Ecologie, Télédétection, Gestion de ressources en eau, Cartographie, SIG.

Research domains


Skills

Modélisation, Télédétection

Publications

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Contribution de la télédétection pour caractériser les zones irriguées et les prélèvements d'eau pour l'irrigation

Dominique Courault , Gilles Belaud , Valérie Demarez , Nicolas Baghdadi , Jean-Stéphane Bailly
Sciences Eaux & Territoires, 2024, 45, pp.8143. ⟨10.20870/Revue-SET.2024.45.8143⟩
Journal articles hal-04734820v1
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How to account for irrigation withdrawals in a watershed model

Elisabeth Brochet , Youen Grusson , Sabine Sauvage , Ludovic Lhuissier , Valérie Demarez
Hydrology and Earth System Sciences, 2024, 28 (1), pp.49-64. ⟨10.5194/hess-28-49-2024⟩
Journal articles hal-04607383v1
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STICS crop model and Sentinel-2 images for monitoring rice growth and yield in the Camargue region

Dominique Courault , Laure Hossard , Valérie Demarez , Hélène Dechatre , Kamran Irfan
Agronomy for Sustainable Development, 2021, 41 (4), 17 p. ⟨10.1007/s13593-021-00697-w⟩
Journal articles hal-03280694v1
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An operational framework for mapping irrigated areas at plot scale using Sentinel-1 and Sentinel-2 data

Hassan Bazzi , Nicolas Baghdadi , Ghaith Amin , Ibrahim Fayad , Mehrez Zribi
Remote Sensing, 2021, 13 (13), pp.2584. ⟨10.3390/rs13132584⟩
Journal articles hal-03285138v1
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Le Pôle Thématique National des Surfaces Continentales Theia : produits et services pour l’agriculture.

Nicolas Baghdadi , Jordi Inglada , Marie Weiss , Hassan Bazzi , Valérie Demarez
Innovations Agronomiques, 2021, 83, pp.11-27. ⟨10.15454/0xy8-yc88⟩
Journal articles hal-03542910v1
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Distilling Before Refine: Spatio-Temporal Transfer Learning for Mapping Irrigated Areas Using Sentinel-1 Time Series

Hassan Bazzi , Dino Ienco , Nicolas Baghdadi , Mehrez Zribi , Valérie Demarez
IEEE Geoscience and Remote Sensing Letters, 2020, 17 (11), pp.1909-1913. ⟨10.1109/LGRS.2019.2960625⟩
Journal articles hal-04610578v1
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Detection of irrigated and rainfed crops in temperate areas using Sentinel-1 and Sentinel-2 time series

Yann Pageot , Frédéric Baup , Jordi Inglada , Nicolas Baghdadi , Valérie Demarez
Remote Sensing, 2020, Irrigation Mapping Using Satellite Remote Sensing, 12 (18), pp.3044. ⟨10.3390/rs12183044⟩
Journal articles hal-02952478v1
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Near real-time irrigation detection at plot scale using Sentinel-1 data

Hassan Bazzi , Nicolas Baghdadi , Ibrahim Fayad , Mehrez Zribi , Hatem Belhouchette
Remote Sensing, 2020, 12 (9), pp.1-32. ⟨10.3390/rs12091456⟩
Journal articles hal-02613679v1
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In-Season Mapping of Irrigated Crops Using Landsat 8 and Sentinel-1 Time Series

Valérie Demarez , Florian Helen , Claire Marais-Sicre , Frédéric Baup
Remote Sensing, 2019, 11 (2), pp.118. ⟨10.3390/rs11020118⟩
Journal articles hal-04610477v1
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A leaf area index data set acquired in Sahelian rangelands of Gourma in Mali over the 2005–2017 period

Éric Mougin , Mamadou Oumar Diawara , Nogmana Soumaguel , Ali Amadou Maïga , Valérie Demarez
Earth System Science Data, 2019, 11 (2), pp.675-686. ⟨10.5194/essd-11-675-2019⟩
Journal articles hal-02387341v1
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Mapping irrigated areas using Sentinel-1 Time series in Catalonia, Spain

Hassan Bazzi , Nicolas Baghdadi , Dino Ienco , Mohammad El Hajj , Mehrez Zribi
Remote Sensing, 2019, 11 (15), pp.1836. ⟨10.3390/rs11151836⟩
Journal articles hal-02609618v1

Gestion quantitative de l'eau en territoires irrigués : intérêt et contraintes du numérique aux différentes échelles de décision. Innovations Agronomiques 67, 63-75

D. Leenhardt , V. Demarez , P. Garin , L. Lhuissier , C. Murgue
Innovations Agronomiques, 2018, ⟨10.15454/VCIPQY⟩
Journal articles hal-04610587v1
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Gestion quantitative de l'eau en territoires irrigués: intérêt et contraintes du numérique aux différentes échelles de décision

Delphine Burger-Leenhardt , Valérie Demarez , Patrice Garin , Ludovic Lhuissier , Clément Murgue
Innovations Agronomiques, 2018, 67 (Juillet), pp.63-75. ⟨10.15454/VCIPQY⟩
Journal articles hal-02105009v1
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Modeling water needs and total irrigation depths of maize crop in the south west of France using high spatial and temporal resolution satellite imagery

Marjorie Battude , Ahmad Al Bitar , Aurore Brut , Tiphaine Tallec , Mireille Huc
Agricultural Water Management, 2017, 189, pp.123-136. ⟨10.1016/j.agwat.2017.04.018⟩
Journal articles ird-04351710v1

Combining hectometric and decametric satellite observations to provide near real time decametric FAPAR product

Wenjuan Li , Frederic Baret , Marie Weiss , Samuel Buis , Roselyne Lacaze
Remote Sensing of Environment, 2017, 200, pp.250-262. ⟨10.1016/j.rse.2017.08.018⟩
Journal articles hal-01608228v1
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Early Detection of Summer Crops Using High Spatial Resolution Optical Image Time Series

Claire Marais Sicre , Jordi Inglada , Rémy Fieuzal , Frédéric Baup , Silvia Valero
Remote Sensing, 2016, 8 (7), pp.591. ⟨10.3390/rs8070591⟩
Journal articles hal-04610591v1

Estimating maize biomass and yield over large areas using high spatial and temporal resolution Sentinel-2 like remote sensing data

Marjorie Battude , Al Bitar Ahmad , David Morin , Jérôme Cros , Mireille Huc
Remote Sensing of Environment, 2016, 184, pp.668-681. ⟨10.1016/j.rse.2016.07.030⟩
Journal articles hal-03133315v1
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Extracting soil water holding capacity parameters of a distributed agro-hydrological model from high resolution optical satellite observations series

Sylvain Ferrant , Vincent Bustillo , Enguerrand Burel , Jordy Salmon-Monviola , Martin Claverie
Remote Sensing, 2016, 8 (2), pp.1-22. ⟨10.3390/rs8020154⟩
Journal articles hal-01608524v1
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Land cover and crop type classification along the season based on biophysical variables retrieved from multi-sensor high-resolution time series

Francois Waldner , Marie Julie Lambert , Wenjuan Li , Marie Weiss , Valérie Demarez
Remote Sensing, 2015, 7, pp.10400-10424. ⟨10.3390/rs70810400⟩
Journal articles hal-02638215v1
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A generic algorithm to estimate LAI, FAPAR and FCOVER variables from SPOT4_HRVIR and Landsat sensors: Evaluation of the consistency and comparison with ground measurements

Wenjuan Li , Marie Weiss , Francois Waldner , Pierre Defourny , Valérie Demarez
Remote Sensing, 2015, 7 (11), pp.15494-15516. ⟨10.3390/rs71115494⟩
Journal articles hal-01271242v1
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Agro-hydrology and multi-temporal high-resolution remote sensing: toward an explicit spatial processes calibration

Sylvain Ferrant , Simon Gascoin , Amanda Veloso , Jordy Salmon-Monviola , Martin Claverie
Hydrology and Earth System Sciences, 2014, 18 (12), pp.5219-5237. ⟨10.5194/hess-18-5219-2014⟩
Journal articles hal-01209246v1

Validation of coarse spatial resolution LAI and FAPAR time series over cropland in southwest France

Martin Claverie , Marie Weiss , Frédéric Baret , Olivier Hagolle , Valérie Demarez
Remote Sensing of Environment, 2013, 139, pp.216-230. ⟨10.1016/j.rse.2013.07.027⟩
Journal articles hal-01315422v1
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Kalideos OSR MiPy : un observatoire pour la recherche et la démonstration des applications de la télédétection à la gestion des territoires

Jean-François Dejoux , Gérard Dedieu , Olivier Hagolle , Danielle Ducrot , Jean-Claude Menaut
Revue Française de Photogrammétrie et de Télédétection, 2012, 197, pp.17-30
Journal articles hal-00756240v1
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Maize and sunflower biomass estimation in southwest France using high spatial and temporal resolution remote sensing data

Martin Claverie , Valérie Demarez , Benoît Duchemin , Olivier Hagolle , Danielle Ducrot
Remote Sensing of Environment, 2012, rse-08294, pp.1-14. ⟨10.1016/j.rse.2012.04.005⟩
Journal articles ird-00718813v1
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Contrasted land-surface processes along the West African rainfall gradient - Monsoon Multidisciplinary Analysis (AMMA) : an integrated project for understanding of the West African climate system and its human dimension

L. Seguis , N. Boulain , Bernard Cappelaere , J.M. Cohard , Guillaume Favreau
Atmospheric Science Letters, 2011, 12 (1), pp.31-37. ⟨10.1002/asl.327⟩
Journal articles ird-02153235v2
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Photosynthesis of a temperate fallow C3 herbaceous ecosystem: measurements and model simulations at the leaf and canopy levels

M. Gouasmi , Patrick Mordelet , Valérie Demarez , Jean-Philippe Gastellu-Etchegorry , Valérie Le Dantec
Photosynthetica, 2009, pp.1-10
Journal articles ird-00405976v1
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Response of surface energy balance to water regime and vegetation development in a Sahelian landscape

Franck Timouk , L. Kergoat , Éric Mougin , C. R. Lloyd , Eric Ceschia
Journal of Hydrology, 2009, pp.1-43. ⟨10.1016/j.jhydrol.2009.04.022⟩
Journal articles ird-00392519v1
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The AMMA-CATCH Gourma observatory site in Mali : relating climatic variations to changes in vegetation, surface hydrology, fluxes and natural resources

Éric Mougin , Pierre Hiernaux , L. Kergoat , Manuela Grippa , Patricia de Rosnay
Journal of Hydrology, 2009, 375, pp.HYDROL 16662. ⟨10.1016/j.jhydrol.2009.06.045⟩
Journal articles ird-00402391v1
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CAN-EYE, logiciel de traitement d'images pour l'estimation de l'indice foliaire

Marie Weiss , Frederic Baret , Benoît de Solan , Valérie Demarez
Cahier des Techniques de l'INRA, 2008, N° Spécial: Rayonnements naturels, pp.159-166
Journal articles hal-01496819v1
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DART : modèle physique 3D d'images de télédétection et du bilan radiatif de paysages urbains et naturels

Jean-Philippe Gastellu-Etchegorry , Yves Auda , Emmanuel Martin , Aurore Brut , Valérie Demarez
Teledetection, 2008, 8 (3), pp.159-167
Journal articles ird-00404958v1
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Estimation of leaf area and clumping indexes of crops with hemispherical photographs

Valérie Demarez , Sylvie Duthoit , Frédéric Baret , Marie Weiss , Gérard Dedieu
Agricultural and Forest Meteorology, 2008, 148 (4), pp.644-655. ⟨10.1016/j.agrformet.2007.11.015⟩
Journal articles ird-00421578v1
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Assessing the effects of the clumping phenomenon on BRDF of a maize crop based on 3D numerical scenes using DART model

Sylvie Duthoit , Valérie Demarez , Jean-Philippe Gastellu-Etchegorry , Emmanuel Martin , Jean-Louis Roujean
Agricultural and Forest Meteorology, 2008, 148, pp.1341-1352. ⟨10.1016/j.agrformet.2008.03.011⟩
Journal articles ird-00407258v1
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Modeling of the radiation regime and photosynthesis of a finite canopy using the DART model. Influence of canopy architecture assumptions and border effects

Valérie Demarez , Jean-Philippe Gastellu-Etchegorry , Patrick Mordelet , Claude Tosca , Georges Marty
Agronomie, 2000, 20 (3), pp.259-270. ⟨10.1051/agro:2000125⟩
Journal articles hal-00886020v1
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Modeling Radiative Transfer in Heterogeneous 3-D Vegetation Canopies

Jean-Philippe Gastellu-Etchegorry , Valérie Demarez , V. Pinel , F. Zagolski
Remote Sensing of Environment, 1996, 58, pp.131-156
Journal articles ird-00405222v1

Detection of irrigated and rainfed crop fields in temperate areas using Sentinel-1, Sentinel-2 and rainfall time series

Yann Pageot , Frédéric Baup , Jordi Inglada , Valérie Demarez
the 23rd EGU General Assembly, Apr 2021, Vienne, Austria. ⟨10.5194/egusphere-egu21-5353⟩
Conference papers hal-04610553v1
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Detecting irrigation events using Sentinel-1 data

Hassan Bazzi , Nicolas Baghdadi , Ibrahim Fayad , Mehrez Zribi , Valérie Demarez
IGARSS 2021, Jul 2021, Bruxelles, Belgium. pp.6355-6358, ⟨10.1109/IGARSS47720.2021.9553587⟩
Conference papers hal-03342931v1

Assessment of Agricultural Practices from Sentinel 1 & 2 Images Applied on Rice Fields to Get A Farm Typology in the Camargue Region

Dominique Courault , Laure Hossard , Fabrice Flamain , Emile Ndikumana , Dinh Ho Tong Minh
IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, Jul 2019, Yokohama, France. pp.7152-7155, ⟨10.1109/IGARSS.2019.8898466⟩
Conference papers hal-04610560v1

Comparison of Two Modeling Approaches to Simulate Rice Production in the Camargue Region Using Sentinel 2 Data

D. Courault , V. Demarez , L. Hossard , F. Flamain , E. Ndikumana
IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, Jul 2019, Yokohama, France. pp.7243-7246, ⟨10.1109/IGARSS.2019.8899124⟩
Conference papers hal-04610542v1

The P2S2 Validation Database for Decametric Resolution Crop Products: Green Area Index, Fraction of Intercepted Light, Green Fraction and Chlorophyll Content

M. Weiss , S. Porrez , J.-P. Goffart , V. Planchon , Y. Curnel
IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, Jul 2019, Yokohama, France. pp.4588-4591, ⟨10.1109/IGARSS.2019.8900400⟩
Conference papers hal-04610544v1

Comparison of two modeling approaches to simulate rice production in the Camargue region using Sentinel 2 data

Dominique Courault , Valérie Demarez , Laure Hossard , Fabrice Flamain , Emile Ndikumana
39. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), IEEE Geoscience and Remote Sensing Society (GRSS). USA., Jul 2019, Yokohama, Japan. ⟨10.1109/IGARSS.2019.8899124⟩
Conference papers hal-02788947v1

The P2S2 Validation Database for Decametric Resolution Crop Products: Green Area Index, Fraction of Intercepted Light, Green Fraction and Chlorophyll Content

M. Weiss , S. Porrez , J.-P. Goffart , V. Planchon , Y. Curnel
IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, Jul 2019, Yokohama, France. pp.4588-4591, ⟨10.1109/IGARSS.2019.8900400⟩
Conference papers hal-04610582v1

Assessment of agricultural practices from Sentinel 1 & 2 images applied on rice fields to get a farm typology in the camargue region

Dominique Courault , Laure Hossard , Fabrice Flamain , Emile Ndikumana , Dinh Ho Tong Minh
39. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), IEEE Geoscience and Remote Sensing Society (GRSS). USA., Jul 2019, Yokohama, Japan. ⟨10.1109/IGARSS.2019.8898466⟩
Conference papers hal-02791385v1

The p2s2 validation database for decametric resolution crop products: green area index, fraction of intercepted light, green fraction and chlorophyll content

Marie Weiss , Kamran Irfan , Simon Madec , François Charron , Jean-François Dejoux
IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2019), Jul 2019, Yokohama, Japan. pp.4588-4591, ⟨10.1109/IGARSS.2019.8900400⟩
Conference papers hal-02964155v1

Estimation of yield and water requirements of maize crops combining high spatial and temporal resolution images with a simple crop model, in the perspective of the Sentinel-2 mission

Marjorie Battude , Ahmad Al Bitar , Aurore Brut , Jérôme Cros , Jean-François Dejoux
EGU General Assembly 2016, Apr 2016, Vienne (Austria), Austria
Conference papers hal-04610598v1

Estimation of phonological indicators and irrigated areas of crops with high temporal and spatial resolution images, in the perspectives of the Sentinel 2 mission.

M. Battude , D. Morin , S. Laurence , S Valero , Claire Marais-Sicre
GV2M Global Vegetation Monitoring and Modeling, Feb 2014, Avignon, France
Conference papers hal-01334335v1

Apport de la télédétection pour l’étude des systèmes de culture dans le cadre de la gestion de l’eau.

Dominique Courault , Jean-François Dejoux , Valérie Demarez , Michel Le Page , Albert Olioso
Séminaire organisé par l’UMT eau « Connaitre et modéliser les systèmes de culture d’un territoire dans un but de gestion quantitative de l’eau", Apr 2014, Toulouse, France
Conference papers hal-01336104v1
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Assessment of leaf area index in sunflower crop using non-destructive methods

Philippe Debaeke , Jean-François Dejoux , Valérie Demarez , Olivia Mas , Luc Champolivier
13. ESA Congress, Aug 2014, Debrecen, Hungary
Conference papers hal-02738925v1

Cartography of irrigated crops and estimation of biophysical variables with high temporal and spatial resolution images.

D. Morin , M. Battude , S. Laurence , S Valero , Claire Marais-Sicre
Perspective Sentinel 2 workshop LPVE -Land Product Validation and Evolution, 2014, Frascati, Italy
Conference papers hal-01338015v1

Validation and Temporal Analysis of LAI and FAPAR Products Derived from Medium Resolution Remote Sensing Data.

M. Claverie , E. Vermote , Frédéric Baret , Marie Weiss , Valérie Demarez
3rd MERIS/(A)ATSR,OLCI/SLSTR Preparatory Workshop, Oct 2012, Frascati, Italy
Conference papers hal-01335981v1

Validation and temporal analysis of LAI and FAPAR products derived from medium resolution sensors.

M. Claverie , E. Vermote , Frédéric Baret , Marie Weiss , Olivier Hagolle
AGU Fall Meeting, 2012, San Francisco, United States
Conference papers hal-01321449v1

Overview of research activities at the Gourma meso-scale site (Mali)

Corinne Galy-Lacaux , Dominique Serça , Claire Delon , Éric Mougin , Frédéric Baup
Seconnd General EGU Assembly, Apr 2005, Vienne, Austria
Conference papers hal-00142259v1

Approche multi-échelle du fonctionnement des éco-agrosystèmes d'Afrique de l'Ouest dans le cadre du projet AMMA

Laurent Kergoat , Valérie Le Dantec , Pierre Hiernaux , Patricia de Rosnay , Frédéric Baup
1er Colloque de restitution Scientifique (Programme National Coordonné ANR "ECO"), Dec 2005, Toulouse, France
Conference papers hal-00023356v1

Fonctionnement des surfaces agricoles : apport de la télédétection

Dominique Courault , Valérie Demarez , Martine Guerif , Michel Le Page , Vincent Simonneaux
Observation des surfaces continentales par télédétection I Agriculture et Forêt, ISTE Editions, 456 p., 2016, Collection Système Terre Environnement - Série Télédétection pour l'observation des surfaces continentales, 978-1-78405-158-7
Book sections hal-01603283v1

Contribution of remote sensing for crop and water monitoring

Dominique Courault , Valérie Demarez , Martine Guerif , Michel Le Page , Vincent Simonneaux
Land surface remote sensing in agriculture and forest, Elsevier Ltd, 496 p., 2016, 978-1785481031
Book sections hal-01603663v1
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Fonctionnement hydrique des cultures à l'échelle du territoire

Valérie Demarez
Interfaces continentales, environnement. UT3 : Université Toulouse 3 Paul Sabatier, 2018
Accreditation to supervise research tel-03818000v1