Y. Oh, K. Sarabandi, and F. T. Ulaby, An empirical model and an inversion technique for radar scattering from bare soil surfaces, IEEE Transactions on Geoscience and Remote Sensing, vol.30, issue.2, pp.370-382, 1992.
DOI : 10.1109/36.134086

Y. Oh, K. Sarabandi, and F. T. Ulaby, An inversion algorithm for retrieving soil moisture and surface roughness from polarimetric radar observation, Proceedings of IGARSS '94, 1994 IEEE International Geoscience and Remote Sensing Symposium, pp.1582-1584, 1994.
DOI : 10.1109/IGARSS.1994.399504

Y. Oh, K. Sarabandi, and F. T. Ulaby, Semi-empirical model of the ensemble-averaged differential Mueller matrix for microwave backscattering from bare soil surfaces, IEEE Transactions on Geoscience and Remote Sensing, vol.40, issue.6, pp.1348-1355, 2002.
DOI : 10.1109/TGRS.2002.800232

Y. Oh, Quantitative Retrieval of Soil Moisture Content and Surface Roughness From Multipolarized Radar Observations of Bare Soil Surfaces, IEEE Transactions on Geoscience and Remote Sensing, vol.42, issue.3, pp.596-601, 2004.
DOI : 10.1109/TGRS.2003.821065

P. Dubois, J. Van-zyl, and T. Engman, Measuring soil moisture with imaging radars, IEEE Transactions on Geoscience and Remote Sensing, vol.33, issue.4, pp.915-926, 1995.
DOI : 10.1109/36.406677

A. K. Fung, Z. Li, and K. S. Chen, Backscattering from a randomly rough dielectric surface, IEEE Transactions on Geoscience and Remote Sensing, vol.30, issue.2, pp.356-369, 1992.
DOI : 10.1109/36.134085

F. Mattia, T. Le-toan, J. C. Souyris, G. De-carolis, N. Floury et al., The effect of surface roughness on multifrequency polarimetric SAR data, IEEE Transactions on Geoscience and Remote Sensing, vol.35, issue.4, pp.954-966, 1997.
DOI : 10.1109/36.602537

]. N. Normand10, J. A. Baghdadi, M. Chaaya, N. Zribi, I. Baghdadi et al., Evaluation of Radar Backscatter Models IEM, OH and Dubois Using Experimental Observations Semiempirical calibration of the Integral equation Model for SAR data in C-band and cross polarization using radar images and field measurements Semi-empirical calibration of the IEM backscattering model using radar images and moisture and roughness field measurements Calibration of the Integral Equation Model for SAR data in C-band and HH and VV polarizationsCondition for precise measurement of soil surface roughness, Remote Sensing of Environment International Journal of Remote Sensing IEEE Geoscience and Remote Sensing Letters International Journal of Remote Sensing International Journal of Remote Sensing IEEE Transactions on Geoscience and Remote Sensing, vol.591112, issue.36 2, pp.256-266, 1994.

M. Zribi and M. Dechambre, A new empirical model to retrieve soil moisture and roughness from C-band radar data, Remote Sensing of Environment, vol.84, issue.1, pp.42-52, 2002.
DOI : 10.1016/S0034-4257(02)00069-X

H. S. Srivastava, P. Patel, M. L. Manchanda, and S. Adiga, Use of multiincidence angle RADARSAT-1 SAR data to incorporate the effect of surface roughness in soil moisture estimation, IEEE Transactions on Geoscience and Remote Sensing, vol.41, issue.7, pp.1638-1640, 2003.
DOI : 10.1109/TGRS.2003.813356

N. Baghdadi, N. Holah, and M. Zribi, Soil moisture estimation using multi???incidence and multi???polarization ASAR data, International Journal of Remote Sensing, vol.16, issue.10, pp.1907-1920, 2006.
DOI : 10.1016/S0034-4257(02)00069-X
URL : https://hal.archives-ouvertes.fr/hal-00151150

A. K. Fung, Microwave Scattering and Emission Models and their Applications, p.573, 1994.

H. Holah, N. Baghdadi, M. Zribi, A. Bruand, and C. King, Potential of ASAR/ENVISAT for the characterization of soil surface parameters over bare agricultural fields, Remote Sensing of Environment, vol.96, issue.1, pp.78-86, 2005.
DOI : 10.1016/j.rse.2005.01.008
URL : https://hal.archives-ouvertes.fr/hal-00077118

F. T. Ulaby, P. P. Batlivala, and M. C. Dobson, Microwave Backscatter Dependence on Surface Roughness, Soil Moisture, and Soil Texture: Part I-Bare Soil, IEEE Transactions on Geoscience Electronics, vol.16, issue.4, pp.16-286, 1978.
DOI : 10.1109/TGE.1978.294586

N. Baghdadi, M. Zribi, C. Loumagne, P. Ansart, and T. P. Anguela, Analysis of TerraSAR-X data and their sensitivity to soil surface parameters over bare agricultural fields, Remote Sensing of Environment, vol.112, issue.12, pp.4370-4379, 2008.
DOI : 10.1016/j.rse.2008.08.004
URL : https://hal.archives-ouvertes.fr/hal-00335373

M. Aubert, N. Baghdadi, M. Zribi, A. Douaoui, C. Loumagne et al., Analysis of TerraSAR-X data sensitivity to bare soil moisture, roughness, composition and soil crust, Remote Sensing of Environment, vol.115, issue.8, pp.1801-1810, 2011.
DOI : 10.1016/j.rse.2011.02.021
URL : https://hal.archives-ouvertes.fr/hal-00602355

T. Fritz and M. Eineder, TerraSAR-X Ground Segment Basic Product Specification Document (18.03.2009), Doc.: TX-GS-DD-3302 Issue, 1.6, 108 pages, https://tandemx-science.dlr.de/pdfs/TX- GS-DD-3302_Basic-Products-Specification- Document_V1, 2009.

N. Baghdadi, O. Cerdan, M. Zribi, V. Auzet, F. Darboux et al., Operational performance of current synthetic aperture radar sensors in mapping soil surface characteristics in agricultural environments: application to hydrological and erosion modelling, Hydrological Processes, pp.9-20, 2008.
DOI : 10.1002/hyp.6609
URL : https://hal.archives-ouvertes.fr/hal-00149444

S. , L. Hégarat-mascle, M. Zribi, F. Alem, A. Weisse et al., Soil moisture estimation from ERS/SAR data: toward an operational methodology, IEEE Transactions on Geoscience and Remote Sensing, issue.12, pp.2647-2658, 2002.

A. Quesney, S. Le-hegarat-mascle, O. Taconet, D. Vidal-madjar, J. P. Wingneron et al., Estimation of Watershed Soil Moisture Index from ERS/SAR Data, Remote Sensing of Environment, vol.72, issue.3, pp.290-303, 2000.
DOI : 10.1016/S0034-4257(99)00102-9

F. T. Ulaby, R. K. Moore, and A. K. Fung, Microwave Remote Sensing, Active and Passive, From Theory to Applications, 1098.

N. Baghdadi, C. King, A. Bourguignon, and A. Remond, Potential of ERS and Radarsat data for surface roughness monitoring over bare agricultural fields: Application to catchments in Northern France, International Journal of Remote Sensing, vol.3, issue.17, pp.3427-3442, 2002.
DOI : 10.1016/0167-1987(87)90047-X

N. Baghdadi, N. Holah, P. Dubois, L. Prévot, S. Hosford et al., Discrimination potential of X-band polarimetric SAR data, International Journal of Remote Sensing, vol.25, issue.22, pp.4933-4942, 2004.
DOI : 10.1080/01431160412231269652
URL : https://hal.archives-ouvertes.fr/hal-00145569

F. Herbert, Dune Robert Laffont, coll. Pocket science-fiction, 1965.

J. P. Walker, Estimating soil moisture profile dynamics from near-surface soil moisture measurements and standard meteorological data, 1999.

Q. Wu and M. Wang, A framework for risk assessment on soil erosion by water using an integrated and systematic approach, Journal of Hydrology, vol.337, issue.1-2, pp.11-21, 2007.
DOI : 10.1016/j.jhydrol.2007.01.022

A. Auerswald, F. J. Klik, M. J. Kwaad, and . Roxo, Sheet and rill erosion rates in Europe, In Soil Erosion in Europe, vol.38, pp.501-513, 2006.

J. Martinuzzi, M. Font, and M. Berger, Soil moisture retrieval from space: the Soil Moisture and Ocean Salinity (SMOS) mission, IEEE Transactions on Geoscience and Remote Sensing, issue.8, pp.391729-1735, 2001.

W. Wagner, G. Lemoine, and H. Rott, A Method for Estimating Soil Moisture from ERS Scatterometer and Soil Data, Remote Sensing of Environment, vol.70, issue.2, pp.191-207, 1999.
DOI : 10.1016/S0034-4257(99)00036-X

H. Scipal, J. Bonekamp, C. Figa, and . Anderson, Initial soil moisture retrievals from the METOP-A Advanced Scatterometer (ASCAT), Geophysical Research Letters, vol.34, issue.20, p.20401, 2007.

X. Zhang, J. Zhao, Q. Sun, ;. Wang, Y. Guo et al., Soil Moisture Retrieval From AMSR-E Data in Xinjiang (China): Models and Validation, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, vol.4, issue.1, pp.117-127, 2011.
DOI : 10.1109/JSTARS.2010.2076336

M. Darboux and . Hajj, Operational performance of current synthetic aperture radar sensors in mapping soil surface characteristics in agricultural environments: application to hydrological and erosion modelling, Hydrological Processes, pp.9-20, 2008.
URL : https://hal.archives-ouvertes.fr/hal-00149444

C. Weisse and . Loumagne, Soil moisture estimation from ERS/SAR data: toward an operational methodology, IEEE Transactions on Geoscience and Remote Sensing, vol.40, issue.12, pp.2647-2658, 2002.

. Davidson, Dense Temporal Series of C-and L-band SAR Data for Soil Moisture Retrieval Over Agricultural Crops, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, vol.4, issue.2, pp.2011-439

A. Merzouki, H. Mcnairn, and A. Pacheco, Mapping Soil Moisture Using RADARSAT-2 Data and Local Autocorrelation Statistics, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, vol.4, issue.1, pp.128-137, 2011.
DOI : 10.1109/JSTARS.2011.2116769

B. Barrett, E. Dwyer, and P. Whelan, Soil Moisture Retrieval from Active Spaceborne Microwave Observations: An Evaluation of Current Techniques, Remote Sensing, vol.1, issue.3, pp.210-242, 2009.
DOI : 10.3390/rs1030210

M. C. Dobson, F. T. Ulaby, L. E. Pierce, F. T. Ulaby, F. Kouyate et al., Land-cover classification and estimation of terrain attributes using synthetic aperture radarTextural Infornation in SAR Images, Remote Sensing of Environment IEEE Transactions on Geoscience and Remote Sensing, vol.51, issue.12, pp.199-214, 1986.

A. K. Fung, Microwave Scattering and Emission Models and their Applications, Artech House, vol.573, 1994.

N. Baghdadi, M. Aubert, O. Cerdan, L. Franchistéguy, C. Viel et al., Operational Mapping of Soil Moisture Using Synthetic Aperture Radar Data: Application to the Touch Basin (France), Sensors, vol.7, issue.10, pp.72458-2483, 2007.
DOI : 10.3390/s7102458

Y. Oh, K. Sarabandi, and F. Y. Ulaby, An empirical model and an inversion technique for radar scattering from bare soil surfaces, IEEE Transactions on Geoscience and Remote Sensing, vol.30, issue.2, pp.370-381, 1992.
DOI : 10.1109/36.134086

M. Zribi, A. Chahbi, M. Shabou, Z. Lili-chabaane, B. Duchemin et al., Soil surface moisture estimation over a semi-arid region using ENVISAT ASAR radar data for soil evaporation evaluation, Hydrology and Earth System Sciences, vol.15, issue.1, pp.345-358, 2011.
DOI : 10.5194/hess-15-345-2011
URL : https://hal.archives-ouvertes.fr/ird-00610514

F. Loumagne, M. Baup, S. Hajj, and . Garrigues, Analysis of TerraSAR-X data sensitivity to bare soil moisture, roughness, composition and soil crust, Remote Sensing of Environment, vol.115, pp.1801-1810, 2011.
URL : https://hal.archives-ouvertes.fr/hal-00602355

R. Prakash, D. Singh, and N. P. Pathak, Microwave specular scattering response of soil texture at X-band, Advances in Space Research, vol.44, issue.7, pp.801-814, 2009.
DOI : 10.1016/j.asr.2009.05.016

. Adiga, Use of multiincidence angle RADARSAT-1 SAR data to incorporate the effect of surface roughness in soil moisture estimation, IEEE Transactions on Geoscience and Remote Sensing, vol.41, issue.7, pp.1638-1640, 2003.

N. Baghdadi, M. Aubert, and M. Zribi, Use of TerraSAR-X Data to Retrieve Soil Moisture Over Bare Soil Agricultural Fields, IEEE Geoscience and Remote Sensing Letters, vol.9, issue.3, pp.1-5, 2011.
DOI : 10.1109/LGRS.2011.2173155
URL : https://hal.archives-ouvertes.fr/hal-00704953

. Sannier, Estimating Surface Soil Moisture from TerraSAR-X Data over Two Small Catchments in the Sahelian Part of Western Niger, Remote Sensing, vol.3, pp.1266-1283, 2011.

P. C. Dubois, J. Van-zyl, and T. Engman, Measuring soil moisture with imaging radars, IEEE Transactions on Geoscience and Remote Sensing, vol.33, issue.4, pp.915-926, 1995.
DOI : 10.1109/36.406677

F. T. Ulaby, P. C. Dubois, and J. Van-zyl, Radar mapping of surface soil moisture, Journal of Hydrology, vol.184, issue.1-2, pp.57-84, 1996.
DOI : 10.1016/0022-1694(95)02968-0

R. Prakash, D. Singh, N. P. Pathak, N. Baghdadi, R. Cresson et al., Multitemporal Observations of Sugarcane by TerraSAR-X ImagesPotential of TerraSAR-X data in early and rapid agricultural crops mapping. TerraSAR- XForest monitoring with TerraSAR-X: first resultsEvaluation of textural and multipolarization radar features for crop classificationTexture statistics for classification of land use with multitemporal JERS-1 SAR single-look imageryAn investigation of the selection of texture features for crop discrimination using SAR imageryField-based landcover classification using TerraSAR-X texture analysisAn evaluation of per-parcel land cover mapping using maximum likelihood class probabilitiesTerraSAR-X Ground Segment Basic Product Specification Document, Applied Earth Observations and Remote Sensing, pp.1-11, 1990.

D. Wessling and G. , Issue 1.6, p. 108 Available online: https://tandemxscience.dlr.de/pdfs/TX-GS-DD-3302_Basic-Products- Specification-Document_V1, 2009.

T. Le-toan, P. Smacchia, J. C. Souyris, A. Beaudoin, M. Merdas et al., On the retrieval of soil moisture from ERS-1 SAR data, Proceedings Second ERS-1 Symposium. Space at the Servive of our Environment, pp.11-14, 1993.

M. Zribi, N. Baghdadi, N. Holah, and O. Fafin, New methodology for soil surface moisture estimation and its application to ENVISAT-ASAR multi-incidence data inversion, Remote Sensing of Environment, vol.96, issue.3-4, pp.3-4485, 2005.
DOI : 10.1016/j.rse.2005.04.005
URL : https://hal.archives-ouvertes.fr/hal-00151499

A. Weimann, M. V. Schonermark, A. Schumann, P. Jorn, and R. Gunther, Soil moisture estimation with ERS-1 SAR data in the East-German loess soil area, International Journal of Remote Sensing, vol.19, issue.2, pp.237-243, 1998.
DOI : 10.1080/014311698216224

J. Sokol, H. Ncnairn, and T. J. Pultz, Case studies demonstrating the hydrological applications of C-band multipolarized and polarimetric SAR, Canadian Journal of Remote Sensing, vol.4, issue.7, pp.470-483, 2004.
DOI : 10.5589/m03-073

A. Beaudoin, Q. H. Gwy, and T. L. Toan, SAR observations and modeling of the C-band backscatter variability due to multiscale geometry and soil moisture, IEEE Transactions on Geoscience and Remote Sensing, vol.28, issue.5, pp.886-894, 1990.
DOI : 10.1109/36.58978

B. A. Bouman, Crop parameter estimation from ground-based x-band (3-cm wave) radar backscattering data, Remote Sensing of Environment, vol.37, issue.3, pp.193-205, 1991.
DOI : 10.1016/0034-4257(91)90081-G

A. Burgess-allen and . Sowter, Modeling microwave interactions with crops and comparison with ERS-2 SAR observations, IEEE Transactions on Geoscience and Remote Sensing, vol.38, issue.2, pp.658-670, 2000.

J. R. Irons and G. W. Petersen, Texture transforms of remote sensing data, Remote Sensing of Environment, vol.11, pp.359-370, 1981.
DOI : 10.1016/0034-4257(81)90033-X

R. M. Haralick, K. Shanmugam, and I. H. Dinstein, Textural Features for Image Classification, IEEE Transactions on Systems, Man, and Cybernetics, vol.3, issue.6, pp.610-621, 1973.
DOI : 10.1109/TSMC.1973.4309314

A. Bhattacharyya, On a measure of divergence between two statistical populations defined by their probability distributions, Bulletin of the Calcutta Mathematical Society, vol.35, pp.99-109, 1943.

S. Nussbaum, I. Niemeyer, and M. J. Canty, SEATH?a new tool for automated feature extraction in the context of object-based image analysis, Proc 1st International Conference on Object-based Image Analysis ISPRS, 2006.

C. G. Schotten, W. W. Van-rooy, and L. L. Janssen, Assessment of the capabilities of multi-temporal ERS-1 SAR data to discriminate between agricultural crops, International Journal of Remote Sensing, vol.1, issue.14, pp.142619-2637, 1995.
DOI : 10.1080/01431169208904221

J. S. Lee, M. Grunes, E. Pottier, and L. Ferro, Segmentation of polarimetric SAR images, IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217), pp.9-13414, 2001.
DOI : 10.1109/IGARSS.2001.976175
URL : https://hal.archives-ouvertes.fr/hal-01466142

M. Dabboor, V. Karathanassi, and A. Braun, A multi-level segmentation methodology for dual-polarized SAR data, International Journal of Applied Earth Observation and Geoinformation, vol.13, issue.3, pp.376-385, 2011.
DOI : 10.1016/j.jag.2011.01.006

. Ainsworth, A wavelet multiresolution technique for polarimetric texture analysis and segmentation of SAR images, Geoscience and Remote Sensing Symposium IGARSS '04. Proceedings. 2004 IEEE International, 2004.

J. Radoux, P. Defourny, and P. Bogaert, Comparison of pixel-and object-based sampling strategies for thematic accuracy assessment, 2008.

U. Wegmüller, The effect of freezing and thawing on the microwave signatures of bare soil, Remote Sensing of Environment, vol.33, issue.2, pp.123-135, 1990.
DOI : 10.1016/0034-4257(90)90038-N

E. J. Rignot and J. J. Van-zyl, Change detection techniques for ERS-1 SAR data, IEEE Transactions on Geoscience and Remote Sensing, vol.31, issue.4, pp.896-906, 1993.
DOI : 10.1109/36.239913

J. D. Villasensor, D. R. Fatland, and L. D. Hinzman, Change detection on Alaska's North Slope using repeat-pass ERS-1 SAR images, IEEE Transactions on Geoscience and Remote Sensing, vol.31, issue.1, pp.227-236, 1993.
DOI : 10.1109/36.210462

J. Way, R. Zimmermann, E. Rignot, K. Mcdonald, and R. Oren, Winter and spring thaw as observed with imaging radar at BOREAS, Journal of Geophysical Research: Atmospheres, vol.33, issue.D24, pp.29673-29702, 1997.
DOI : 10.1029/96JD03878

C. Albergel, Assimilation de données de télédétection dans le modèle ISBA-A-gs pour une analyse conjointe de la biomasse et de l, 2010.

S. Allain, L. Ferro-famil, and E. Pottier, A polarimetric classification from Polsar data using SERD/DERD parameters, Proc. EUSAR, 2006.
URL : https://hal.archives-ouvertes.fr/hal-00101294

E. Altese, O. Bolognani, and M. Mancini, Retrieving Soil Moisture Over Bare Soil from ERS 1 Synthetic Aperture Radar Data: Sensitivity Analysis Based on a Theoretical Surface Scattering Model and Field Data, Water Resources Research, vol.32, issue.3, pp.653-661, 1996.
DOI : 10.1029/95WR03638

J. Álvarez-mozos, N. E. Verhoest, A. Larrañaga, J. Casalí, and M. González-audícana, Influence of Surface Roughness Spatial Variability and Temporal Dynamics on the Retrieval of Soil Moisture from SAR Observations, Sensors, vol.9, issue.1, pp.463-489, 2009.
DOI : 10.3390/s90100463

J. Álvarez-mozos, M. González-audícana, and J. Casalí, Evaluation of empirical and semi-empirical backscattering models for surface soil moisture estimation, Canadian Journal of Remote Sensing, vol.32, issue.3, pp.176-188, 2007.
DOI : 10.5589/m07-024

R. Armand, Étude des états de surface du sol et de leur dynamique pour différentes pratiques de travail du sol : mise au point d'un indicateur de ruissellement, 2009.

S. Assouline, Rainfall-Induced Soil Surface Sealing: A Critical Review of Observations, Conceptual Models, and Solutions, Vadose Zone Journal, vol.3, issue.2, pp.570-591, 2004.
DOI : 10.2113/3.2.570

J. Asseline, A. Mtimet, R. Pontanier, and J. Clery, Une méthode de caractérisation, en zone aride et semi aride, des états de surfaces élémentaires (1m²) soumis à des averses contrôlées, Gouttes et Splash, vol.4, issue.1, pp.13-18, 1987.

E. P. Attema and F. T. Ulaby, Vegetation modeled as a water cloud, Radio Science, vol.23, issue.5, pp.357-364, 1978.
DOI : 10.1029/RS013i002p00357

D. Aubert, C. Loumagne, A. Weisse, and S. Le-hegarat-mascle, Assimilation of earth Observation data into hydrological models: the sequential method, Remote sensing and Hydrology Symposium, 5 th International Workshop on Application of remote Sensing in Hydrology, 2001.

A. V. Auzet, M. J. Kirkby, and P. Van-dijk, Surface characterisation for soil erosion forecasting, CATENA, vol.62, issue.2-3, pp.2-3, 2005.
DOI : 10.1016/j.catena.2005.05.009

A. V. Auzet, Ruissellement, érosion et conditions de surface des sols à l'échelle de versants et petits bassins versants, 2000.

A. V. Auzet, J. Boiffin, and B. Ludwig, Concentrated flow erosion in cultivated catchments: Influence of soil surface state, Earth Surface Processes and Landforms, pp.759-767, 1995.
DOI : 10.1002/esp.3290200807

A. V. Auzet, J. Boiffin, F. Papy, J. Maucorps, and J. F. Ouvry, An approach to the assessment of erosion forms and erosion risk on agricultural land in the northern Paris Basin, France, Soil Erosion on agricultural land, pp.383-400, 1990.

H. Bach and W. Mauser, Methods and examples for remote sensing data assimilation in land surface process modeling, IEEE Transactions on Geoscience and Remote Sensing, vol.41, issue.7, pp.16239-1637, 2003.
DOI : 10.1109/TGRS.2003.813270

N. Baghdadi, P. Camus, N. Beaugendre, O. M. Issa, M. Zribi et al., Estimating Surface Soil Moisture from TerraSAR-X Data over Two Small Catchments in the Sahelian Part of Western Niger, Remote Sensing, vol.3, issue.6, pp.1266-1283, 2011.
DOI : 10.3390/rs3061266

N. Baghdadi, R. Cresson, P. Todoroff, and S. Moinet, Multitemporal Observations of Sugarcane by TerraSAR-X Images, Sensors, vol.10, issue.10, pp.8899-8919, 2010.
DOI : 10.3390/s101008899
URL : https://hal.archives-ouvertes.fr/hal-00546385

N. Baghdadi, N. Holah, P. Dubois-fernandez, L. Prévot, S. Hosford et al., Discrimination potential of X-band polarimetric SAR data, International Journal of Remote Sensing, vol.25, issue.22, pp.4933-4943, 2004.
DOI : 10.1080/01431160412231269652
URL : https://hal.archives-ouvertes.fr/hal-00145569

N. Baghdadi, L. Bonnifait, C. King, and A. Bourguignon, Utilisation des images SAR pour la calibration empirique du modèle IEM dans un contexte de sols nus en zones agricoles, pp.1-16, 2003.

N. Baghdadi, S. Gaultier, and C. King, Retrieving surface roughness and soil moisture from synthetic aperture radar (SAR) data using neural networks, Canadian Journal of Remote Sensing, vol.59, issue.2, pp.701-711, 2002.
DOI : 10.5589/m02-066

F. Baup, E. Mougin, P. De-rosnay, P. Hiernaux, F. Frappart et al., Mapping surface soil moisture over the Gourma mesoscale site (Mali) by using ENVISAT ASAR data, Hydrology and Earth System Sciences, pp.603-616, 2011.
URL : https://hal.archives-ouvertes.fr/hal-00648629

A. Beaudoin, Q. H. Gwy, and T. Le-toan, SAR observations and modeling of the C-band backscatter variability due to multiscale geometry and soil moisture, IEEE Transactions on Geoscience and Remote Sensing, vol.28, issue.5, pp.886-894, 1990.
DOI : 10.1109/36.58978

P. Beckmann and A. Spizzichino, The scattering of electromagnetic waves from rough surface, 1963.

G. Blöschl and M. Sivapalan, Scale issues in hydrological modelling: A review, Hydrological Processes, vol.21, issue.85, pp.251-290, 1995.
DOI : 10.1002/hyp.3360090305

J. Boiffin, F. Papy, and M. Eimberck, Influence des syst??mes de culture sur les risques d'??rosion par ruissellement concentr??. I. ??? Analyse des conditions de d??clenchement de l'??rosion, Agronomie, vol.8, issue.8, pp.663-673, 1988.
DOI : 10.1051/agro:19880801

J. Boiffin, La dégradation structurale des couches superficielles du sol sous l?action des pluies, Thèse de doctorat, Sciences agronomiques, 1984.

G. Boulet, Modélisation, spatialisation et assimilation des données de la télédétection pour la gestion de l'eau des milieux semi arides, 2011.

J. Breidenbach, S. M. Ortiz, and M. Reich, Forest monitoring with TerraSAR-X: first results, European Journal of Forest Research, vol.68, issue.5, pp.813-823, 2010.
DOI : 10.1007/s10342-009-0318-y

L. Bruckler, H. Wittono, and P. Stengel, Near surface soil moisture estimation from microwave measurements, Remote Sensing of Environment, vol.26, issue.2, pp.101-121, 1988.
DOI : 10.1016/0034-4257(88)90091-0

C. Brun, R. Bernard, and D. Vidal-madjar, Mapping saturated areas with a helicopter-borne C band scatterometer, Water Resources Research, vol.26, issue.2, pp.945-955, 1990.
DOI : 10.1029/WR026i005p00945

M. Callens, N. E. Verhoest, and M. W. Davidson, Parameterization of tillage-induced single-scale soil roughness from 4-m profiles, IEEE Transactions on Geoscience and Remote Sensing, vol.44, issue.4, pp.878-888, 2006.
DOI : 10.1109/TGRS.2005.860488

A. Casenave and C. Valentin, A runoff capability classification system based on surface features criteria in semi-arid areas of West Africa, Journal of Hydrology, vol.130, issue.1-4, pp.231-249, 1992.
DOI : 10.1016/0022-1694(92)90112-9

A. Casenave and C. Valentin, Les états de surface de la zone sahélienne: influence sur l'infiltration, 1990.

A. Ceballos, K. Scipal, W. Wagner, and J. Martinez-fernandez, Validation of ERS scatterometer-derived soil moisture data in the central part of the Duero Basin, Spain, Hydrological Processes, vol.38, issue.189, pp.1549-1566, 2005.
DOI : 10.1002/hyp.5585

O. Cerdan, J. Poesen, G. Govers, N. Saby, L. Bissonnais et al., Sheet and rill erosion rates in Europe, Soil Erosion in Europe, pp.501-513, 2006.

A. Chanzy, C. King, L. Prévot, A. Remond, J. P. Wigneron et al., Comparaison of ERS and multi-angle RADARSAT measurements on bare soils: First results, Second International Workshop on Retrieval of Bio-& Geophysical parameters from SAR Data for Land Applications, pp.471-477, 1998.

A. Chanzy, Basic soil surface characteristics derived from active microwave remote sensing, Remote Sensing Reviews, vol.15, issue.3-4, pp.303-319, 1993.
DOI : 10.1080/01431168508948449

S. R. Cloude and E. Pottier, An entropy based classification scheme for land applications of polarimetric SAR, IEEE Transactions on Geoscience and Remote Sensing, vol.35, issue.1, pp.68-78, 1997.
DOI : 10.1109/36.551935

S. R. Cloude and E. Pottier, A review of target decomposition theorems in radar polarimetry, IEEE Transactions on Geoscience and Remote Sensing, vol.34, issue.2, pp.498-518, 1996.
DOI : 10.1109/36.485127

J. Coulombe-simoneau, S. Hardy, N. Baghdadi, C. King, F. Bonn et al., RADARSAT based monitoring of soil roughness over an agricultural area affected by excessive runoff, International Symposium on Remote Sensing and Hydrology, 2000.

P. Crosson, Will erosion threaten agricultural productivity? Environment, pp.4-12, 1997.

W. T. Crow, W. Wagner, and V. Naeimi, The Impact of Radar Incidence Angle on Soil-Moisture-Retrieval Skill, IEEE Geoscience and Remote Sensing Letters, vol.7, issue.3, 2010.
DOI : 10.1109/LGRS.2010.2040134

W. T. Crow and D. Ryu, A new data assimilation approach for improving runoff prediction using remotely-sensed soil moisture retrievals, Hydrology and Earth System Sciences, vol.13, issue.1, pp.1-16, 2009.
DOI : 10.5194/hess-13-1-2009

M. W. Davidson, T. Le-toan, F. Mattia, G. Satalino, T. Manninen et al., On the characterization of agricultural soil roughness for radar remote sensing studies, IEEE Transactions on Geoscience and Remote Sensing, vol.38, issue.2, pp.630-640, 2000.
DOI : 10.1109/36.841993

M. C. Dobson and F. T. Ulaby, Active Microwave Soil Moisture Research, IEEE Transactions on Geoscience and Remote Sensing, vol.24, issue.1, pp.23-36, 1986.
DOI : 10.1109/TGRS.1986.289585

M. C. Dobson and F. T. Ulaby, Microwave Backscatter Dependence on Surface Roughness, Soil Moisture, And Soil Texture: Part III-Soil Tension, IEEE Transactions on Geoscience and Remote Sensing, vol.19, issue.1, pp.51-61, 1981.
DOI : 10.1109/TGRS.1981.350328

P. C. Dubois, J. Van-zyl, and T. Engman, Measuring soil moisture with imaging radars, IEEE Transactions on Geoscience and Remote Sensing, vol.33, issue.4, pp.915-926, 1995.
DOI : 10.1109/36.406677

M. Galarneau, R. Leconte, F. Brissette, T. Pultz, and J. Rousselle, Utilization of Radarsat in integrated catchment management. Remote sensing and hydrology, Procedings of a Symposium held at Santa Fe IAHS, 2000.

I. Gherboudj, R. Magagi, A. A. Berg, and B. Toth, Soil moisture retrieval over agricultural fields from multi-polarized and multi-angular RADARSAT-2 SAR data, Remote Sensing of Environment, vol.115, issue.1, pp.33-43, 2011.
DOI : 10.1016/j.rse.2010.07.011

G. Govers, I. Takken, and K. Helming, Soil roughness and overland flow, Agronomie, vol.20, issue.2, pp.131-146, 2000.
DOI : 10.1051/agro:2000114
URL : https://hal.archives-ouvertes.fr/hal-00885998

I. Hajnsek, T. Jagdhuber, H. Schön, and K. P. Papathanassiou, Potential of Estimating Soil Moisture Under Vegetation Cover by Means of PolSAR, IEEE Transactions on Geoscience and Remote Sensing, vol.47, issue.2, pp.442-454, 2009.
DOI : 10.1109/TGRS.2008.2009642

I. Hajnsek, E. Pottier, and S. R. Cloude, Inversion of surface parameters from polarimetric SAR, IEEE Transactions on Geoscience and Remote Sensing, issue.4, pp.41-727, 2003.
URL : https://hal.archives-ouvertes.fr/hal-00913005

N. Holah, N. Baghdadi, M. Zribi, A. Bruand, and C. King, Potential of ASAR/ENVISAT for the characterization of soil surface parameters over bare agricultural fields, Remote Sensing of Environment, vol.96, issue.1, pp.78-86, 2005.
DOI : 10.1016/j.rse.2005.01.008
URL : https://hal.archives-ouvertes.fr/hal-00077118

M. Hallikaïnen, F. Ulaby, F. Dobson, M. El-rayes, and L. Wu, Microwave Dielectric Behavior of Wet Soil-Part 1: Empirical Models and Experimental Observations, IEEE Transactions on Geoscience and Remote Sensing, vol.23, issue.1, pp.25-34, 1985.
DOI : 10.1109/TGRS.1985.289497

P. R. Houser, W. J. Shuttleworth, J. S. Famiglietti, H. V. Gupta, K. H. Syed et al., Integration of soil moisture remote sensing and hydrologic modeling using data assimilation, Water Resources Research, vol.104, issue.5, pp.3405-3420, 1998.
DOI : 10.1029/1998WR900001

A. Joseph, R. Velde-van-der, P. E. O-'neill, R. H. Lang, and T. Gish, Soil Moisture Retrieval During a Corn Growth Cycle Using L-Band (1.6 GHz) Radar Observations, IEEE Transactions on Geoscience and Remote Sensing, vol.46, issue.8, pp.2365-2374, 2009.
DOI : 10.1109/TGRS.2008.917214

Y. H. Kerr, P. Waldteufel, P. Richaume, J. P. Wigneron, P. Ferrazzoli et al., The SMOS Soil Moisture Retrieval Algorithm, IEEE Transactions on Geoscience and Remote Sensing, vol.50, issue.5, 2012.
DOI : 10.1109/TGRS.2012.2184548
URL : https://hal.archives-ouvertes.fr/hal-00677899

Y. H. Kerr, Soil moisture from space: Where are we?, Hydrogeology Journal, vol.73, issue.3, pp.117-120, 2007.
DOI : 10.1007/s10040-006-0095-3
URL : https://hal.archives-ouvertes.fr/hal-00294107

D. King and L. Bissonnais, Rôle des sols et des pratiques culturelles dans l'infiltration et l'écoulement des eaux Exemple du ruissellement et de l'érosion sur les plateaux limoneux du nord de l'Europe, C. R. Acad. FR, vol.78, issue.6, pp.91-105, 1992.

R. Lal, Soil Erosion Impact on Agronomic Productivity and Environment Quality, Critical Reviews in Plant Sciences, vol.17, issue.4, pp.319-464, 1998.
DOI : 10.1016/S0735-2689(98)00363-3

L. Bissonnais, Y. Cerdan, O. Fox, D. Gascuel-odoux, C. Martin et al., L'érosion des sols, 2005.

L. Bissonnais, Y. Thorette, J. Bardet, C. Daroussin, and J. , L'érosion hydrique des sols en France, 2002.

L. Bissonnais, Y. Montier, C. Jamagne, M. Daroussin, J. King et al., Mapping erosion risk for cultivated soil in France, CATENA, vol.46, issue.2-3, pp.207-220, 2001.
DOI : 10.1016/S0341-8162(01)00167-9

L. Bissonnais, Y. Et-singer, and M. J. , Crusting, Runoff, and Erosion Response to Soil Water Content and Successive Rainfalls, Soil Science Society of America Journal, vol.56, issue.6, pp.1898-1903, 1992.
DOI : 10.2136/sssaj1992.03615995005600060042x

L. Bissonnais and Y. , Experimental study and modelling of soil surface crusting processes Soil Erosion?Experiments and models, Catena, Supplement, vol.17, pp.13-28, 1990.

R. Leconte and F. Brissette, Mapping near-surface soil moisture with RADARSAT-1 synthetic aperture radar data, Water Resources Research, vol.80, issue.1, 2004.
DOI : 10.1029/2003WR002312

J. S. Lee, T. L. Ainsworth, J. P. Kelly, and C. Lopez-martinez, Evaluation and Bias Removal of Multilook Effect on Entropy/Alpha/Anisotropy in Polarimetric SAR Decomposition, IEEE Transactions on Geoscience and Remote Sensing, vol.46, issue.10, pp.3039-3052, 2008.
DOI : 10.1109/TGRS.2008.922033

L. Hegarat-mascle, S. Zribi, M. Alem, F. Weisse, A. Loumagne et al., Soil moisture estimation from ERS/SAR data: toward an operational methodology, IEEE Transactions on Geoscience and Remote Sensing, vol.40, issue.12, pp.2647-2658, 2002.
DOI : 10.1109/TGRS.2002.806994

L. Morvan, A. Zribi, M. Baghdadi, N. Chanzy, and A. , Soil Moisture Profile Effect on Radar Signal Measurement, Sensors, vol.8, issue.1, pp.256-270, 2008.
DOI : 10.3390/s8010256
URL : https://hal.archives-ouvertes.fr/hal-00320981

. Agriculture, Valoriser les synergies. Expertise scientifique collective, synthèse du rapport

L. Toan, T. Smacchia, P. Souyris, J. C. Beaudoin, A. Merdas et al., On the retrieval of soil moisture from ERS-1 SAR data, Proceedings Second ERS-1 Symposium. Space at the Servive of our Environment, pp.11-14, 1994.

L. Toan, T. Laur, H. Mougin, E. Lopes, and A. , Multitemporal and dual-polarization observations of agricultural vegetation covers by X-band SAR images, IEEE Transactions on Geoscience and Remote Sensing, vol.27, issue.6, pp.709-718, 1989.
DOI : 10.1109/TGRS.1989.1398243

L. Toan and T. , Active microwave signatures of soils and crops: Significant results of three years of experiments, Proc. IEEE International Geoscience and Remote Sensing Symposium, pp.1-4, 1982.

X. Y. Li, J. D. Gong, Q. Z. Gao, and X. H. Wei, Rainfall interception loss by pebble mulch in the semiarid region of China, Journal of Hydrology, vol.228, p.165, 1934.

B. Lomborg, The Skeptical Environmentalist: Measuring the Real State of the World, 2001.
DOI : 10.1017/CBO9781139626378

C. Lopez-martinez and E. Pottier, Study of the speckle noise effects over the eigen decomposition of polarimetric SAR data, Proc. POLinSAR, pp.17-21, 2005.
URL : https://hal.archives-ouvertes.fr/hal-00776173

S. Mascle and . F. Alem, Integration of remote sensing data into hydrological models for reservoir management, Hydrological Sclences-Journal-des Sciences Hydrologiques, vol.46, issue.1, 2001.

A. Mahmoud, S. Elbialy, B. Pradhan, and M. Buchroithner, Field-based landcover classification using TerraSAR-X texture analysis, Advances in Space Research, vol.48, issue.5, pp.799-805, 2011.
DOI : 10.1016/j.asr.2011.04.005

D. Mallants, D. Jacques, M. Vanclooster, J. Diels, and J. Feyen, A stochastic approach to simulate water flow in a macroporous soil, Geoderma, vol.70, issue.2-4, pp.299-324, 1996.
DOI : 10.1016/0016-7061(95)00084-4

P. Martin, Reducing flood risk from sediment-laden agricultural runoff using intercrop management techniques in northern France, Soil and Tillage Research, vol.52, issue.3-4, pp.233-245, 1999.
DOI : 10.1016/S0167-1987(99)00084-7

P. Matgen, R. Hostache, G. Schumann, L. Pfister, L. Hoffmann et al., Towards an automated SAR-based flood monitoring system: Lessons learned from two case studies, Physics and Chemistry of the Earth, Parts A/B/C, vol.36, issue.7-8, pp.7-8, 2011.
DOI : 10.1016/j.pce.2010.12.009

P. Matgen, G. Schumann, F. Pappenberger, and L. Pfister, Sequential assimilation of remotely sensed water stages in flood inundation models. Remote Sensing for Environmental Monitoring and Change Detection, Proceedings of Symposium HS3007 at IUGG2007, p.316, 2007.

F. Mattia, G. Satalino, V. R. Pauwels, and . A. Loew, Soil moisture retrieval through a merging of multi-temporal L-band SAR data and hydrologic modelling, Hydrology and Earth System Sciences, vol.13, issue.3, pp.343-356, 2009.
DOI : 10.5194/hess-13-343-2009

F. Mattia, G. Satalino, L. Dente, and G. Pasquariello, Using a priori information to improve soil moisture retrieval from ENVISAT ASAR AP data in semiarid regions, IEEE Transactions on Geoscience and Remote Sensing, vol.44, issue.4, pp.900-912, 2006.
DOI : 10.1109/TGRS.2005.863483

J. Minet, E. Laloy, S. Lambot, and . M. Vanclooster, Effect of high-resolution spatial soil moisture variability on simulated runoff response using a distributed hydrologic model, Hydrology and Earth System Sciences, vol.15, issue.4, pp.1323-1338, 2011.
DOI : 10.5194/hess-15-1323-2011

M. Montanari, R. Hostache, P. Matgen, G. Schumann, L. Pfister et al., Calibration and sequential updating of a coupled hydrologic-hydraulic model using remote sensing derived water stages, Hydrological and Earth System Sciences, pp.367-380, 2009.

M. S. Moran, J. M. Watts, C. D. Peters-lidard, and S. A. Mcelroy, Estimating soil moisture at the watershed scale with satellite-based radar and land surface models, Canadian Journal of Remote Sensing, vol.204, issue.2, pp.805-826, 2004.
DOI : 10.5589/m04-043

M. A. Nearing, F. F. Pruski, and M. R. Neal, Expected climate change impacts on soil erosion rates: a review, Journal Soil and Water Cons, vol.59, pp.43-50, 2004.

M. Nolan and D. R. Fatland, Penetration depth as a DInSAR observable and proxy for soil moisture, IEEE Transactions on Geoscience and Remote Sensing, vol.41, issue.3, pp.532-537, 2003.
DOI : 10.1109/TGRS.2003.809931

S. Nussbaum, I. Niemeyer, and M. J. Canty, SEATH?A new tool for automated feature extraction in the context of objectbased image analysis, Proc. st International Conference on Object-based Image Analysis, pp.4-5, 2006.

O. Ogilvy, Theory Of Wave Scattering from Random Rough Surfaces, Adam Hilder. ANNEXES Oh Quantitative retrieval of soil moisture content and surface roughness from multipolarized radar observations of bare soil surfaces, IEEE Transactions on Geoscience and Remote Sensing, vol.42, issue.3, pp.596-601, 1991.

Y. Oh and Y. Kay, Condition for precise measurement of soil surface roughness, IEEE Transactions on Geoscience and Remote Sensing, vol.36, issue.2, pp.691-695, 1998.

A. Oldak, T. Jackson, P. Starks, and R. Elliott, Mapping near-surface soil moisture on regional scale using ERS-2 SAR data, International Journal of Remote Sensing, vol.22, issue.22, pp.4579-4598, 2003.
DOI : 10.1016/0034-4257(84)90010-5

L. Oudin, A. Weisse, C. Loumagne, L. Hegarat-mascle, and S. , Assimilation of soil moisture into hydrological models for flood forecasting: a variational approach, Canadian Journal of Remote Sensing, vol.214, issue.4, pp.679-686, 2003.
DOI : 10.5589/m03-038

F. Papy and J. Boiffin, Influence des syst??mes de culture sur les risques d'??rosion par ruissellement concentr??. II. Evaluation des possibilit??s de ma??trise du ph??nom??ne dans les exploitations agricoles, Agronomie, vol.8, issue.9, pp.745-756, 1988.
DOI : 10.1051/agro:19880901

P. Anguela, T. Zribi, M. Baghdadi, N. Loumagne, and C. , Analysis of Local Variation of Soil Surface Parameters With TerraSAR-X Radar Data Over Bare Agricultural Fields, IEEE Transactions on Geoscience and Remote Sensing, vol.48, issue.2, pp.874-881, 2010.
DOI : 10.1109/TGRS.2009.2028019
URL : https://hal.archives-ouvertes.fr/hal-00518085

C. Pathe, W. Wagner, D. Sabel, M. Doubkova, and J. B. Basara, Using ENVISAT ASAR Global Mode Data for Surface Soil Moisture Retrieval Over Oklahoma, USA, IEEE Transactions on Geoscience and Remote Sensing, vol.47, issue.2, pp.468-480, 2009.
DOI : 10.1109/TGRS.2008.2004711

V. R. Pauwels, A. Balenzano, G. Satalino, H. Skriver, E. C. Niko et al., Optimization of Soil Hydraulic Model Parameters Using Synthetic Aperture Radar Data: An Integrated Multidisciplinary Approach, IEEE Transactions on Geoscience and Remote Sensing, vol.47, issue.2, 2009.
DOI : 10.1109/TGRS.2008.2007849

T. Pellarin, J. C. Calvet, and W. Wagner, Evaluation of ERS scatterometer soil moisture products over a half-degree region in southwestern France, Geophysical Research Letters, vol.19, issue.D19, 2006.
DOI : 10.1029/2006GL027231
URL : https://hal.archives-ouvertes.fr/hal-00259755

J. Pellenq, G. Boulet, A. Chaponniere, and Y. Kerr, Soil moisture assimilation in a coupled water/energy scheme in a semiarid region. Hydrology of Mediterranean and semiarid regions: papers selected for the international conference on Hydrology of the Mediterranean and Semi-Arid Regions, 2003.

D. Pimentel, C. Harvey, P. Resosudarmo, K. Sinclair, D. Kurz et al., Environmental and Economic Costs of Soil Erosion and Conservation Benefits, Science, vol.267, issue.5201, pp.1117-1123, 1995.
DOI : 10.1126/science.267.5201.1117

R. Prasad, Retrieval of crop variables with field-based X-band microwave remote sensing of ladyfinger, Advances in Space Research, vol.43, issue.9, pp.1356-1363, 2009.
DOI : 10.1016/j.asr.2008.12.017

A. Quesney, C. François, C. Ottle, L. Hegarat, S. Loumagne et al., Sequential assimilation of SAR/ERS data in alumped rainfall-runoff model with an extended Kalman filter. Remote Sensing and Hydrology, Proceedings of a symposium held at Santa Fe, 2000.

A. Quesney, L. Hegarat-mascle, S. Taconet, O. Vidal-madjar, D. Wingneron et al., Estimation of watershed soil moisture index from ERS/SAR data. Remote sensing of environment, pp.290-303, 2000.

A. Quesney, Assimilation de mesures d'humidité de surface dans un modèle hydrologique conceptuel global : Apport de la télédétection radar ERS/SAR, Thèse de Doctorat, 1999.

J. Shi, J. Wang, A. Y. Hsu, P. E. O-'neill, and E. T. Engman, Estimation of bare surface soil moisture and surface roughness parameter using L band SAR image data, IEEE Transactions on Geoscience and Remote Sensing, vol.35, issue.5, pp.1254-1266, 1997.

H. S. Srivastava, P. Patel, and R. R. Navalgund, Incorporating soil texture in soil moisture estimation from extended low???1 beam mode RADARSAT???1 SAR data, International Journal of Remote Sensing, vol.2, issue.12, 2006.
DOI : 10.1029/RS015i005p00977

J. Stolp and A. R. Janse, X-band radar backscattering for detecting spatial distribution of soil slaking, ITC Journal, vol.1, pp.82-87, 1986.

G. Strasser, K. Schneider, and W. Mauser, The use of ERS SAR data derived soil moisture distributions for SVAT-model validation. Geoscience and Remote Sensing Symposium, IGARSS '99, Proceedings. IEEE 1999 International, pp.1921-1923, 1999.

D. Tessier, Les sols de France sont-ils fatigués ou appauvris, pp.126-127, 2009.

D. P. Thoma, M. S. Moran, R. Bryant, M. M. Rahman, C. D. Collins et al., Appropriate scale of soil moisture retrieval from high resolution radar imagery for bare and minimally vegetated soils, Remote Sensing of Environment, vol.112, issue.2, pp.403-414, 2008.
DOI : 10.1016/j.rse.2007.06.021

F. T. Ulaby, R. K. Moore, and A. K. Fung, Microwave Remote Sensing, Active and Passive, From Theory to Applications, 1986.

F. T. Ulaby, R. K. Moore, and A. K. Fung, Microwave remote sensing active and passive Radar remote sensing and surface scattering and emission theory, 1982.

P. Van-dijk, M. Van-der-zijp, and F. J. Kwaad, SOIL ERODIBILITY PARAMETERS UNDER VARIOUS CROPPING SYSTEMS OF MAIZE, Hydrological Processes, vol.2, issue.8, pp.1061-1067, 1996.
DOI : 10.1002/(SICI)1099-1085(199608)10:8<1061::AID-HYP411>3.0.CO;2-V

A. J. Van-rompaey, P. Bazzoffi, R. J. Jones, L. Montanarella, and G. Govers, Validation of Soil Erosion Risk Assessments in Italy, European Soil Bureau Research Report, vol.12, 2003.

M. Vauclin, L'humidité des sols en hydrologie: intérêt et limites de la télédétection. Hydrological Applications of Remote Sensing and Remote Data Transmission, Proceedings of the Hamburg Symposium, 1983.

N. E. Verhoest, H. Lievens, W. Wagner, J. Alvarez-mozos, M. S. Moran et al., On the Soil Roughness Parameterization Problem in Soil Moisture Retrieval of Bare Surfaces from Synthetic Aperture Radar, Sensors, vol.8, issue.7, pp.4213-4248, 2008.
DOI : 10.3390/s8074213

H. Vernieuwe, B. De-baets, J. Minet, V. R. Pauwels, S. Lambot et al., Integrating coarse-scale uncertain soil moisture data into a fine-scale hydrological modelling scenario, Hydrological Earth System Sciences, vol.8, pp.6031-6067, 2011.

H. Vernieuwe, N. E. Verhoest, H. Lievens, and B. De-baets, Possibilistic Soil Roughness Identification for Uncertainty Reduction on SAR-Retrieved Soil Moisture, IEEE Transactions on Geoscience and Remote Sensing, vol.49, issue.2, pp.628-638, 2011.
DOI : 10.1109/TGRS.2010.2058577

W. W. Verstraeten, F. Veroustraete, C. J. Van-der-sande, I. Grootaers, and J. Feyen, Soil moisture retrieval using thermal inertia, determined with visible and thermal spaceborne data, validated for European forests, Remote Sensing of Environment, vol.101, issue.3, pp.299-314, 2006.
DOI : 10.1016/j.rse.2005.12.016

A. Vrielin, Satellite remote sensing for water erosion assessment: A review, CATENA, vol.65, issue.1, pp.2-18, 2005.
DOI : 10.1016/j.catena.2005.10.005

W. Wagner, C. Pathe, M. Doubkova, D. Sabel, A. Bartsch et al., Temporal Stability of Soil Moisture and Radar Backscatter Observed by the Advanced Synthetic Aperture Radar (ASAR), Sensors, vol.8, issue.12, pp.1174-1197, 2008.
DOI : 10.3390/s80201174

W. Wagner, G. Blöschl, P. Pampaloni, and J. Calvet, Operational readiness of microwave remote sensing of soil moisture for hydrologic applications, Nordic Hydrology, vol.38, issue.1, pp.1-20, 2007.
DOI : 10.2166/nh.2007.029

W. Wagner and C. Pathe, Has SAR failed in soil moisture retrieval, Proceedings ENVISAT & ERS Symposium, pp.6-10, 2005.

W. Wagner and K. Scipal, Large-scale soil moisture mapping in western Africa using the ERS scatterometer, IEEE Transactions on Geoscience and Remote Sensing, vol.38, issue.4, pp.1777-1780, 2000.
DOI : 10.1109/36.851761

W. Wagner, J. Noll, M. Borgeaud, and H. Rott, Monitoring soil moisture over the Canadian Prairies with the ERS scatterometer, IEEE Transactions on Geoscience and Remote Sensing, vol.37, issue.1, pp.206-216, 1999.
DOI : 10.1109/36.739155

J. P. Walker and P. R. Houser, Requirements of a global near-surface soil moisture satellite mission: accuracy, repeat time, and spatial resolution, Advances in Water Resources, vol.27, issue.8, pp.785-801, 2004.
DOI : 10.1016/j.advwatres.2004.05.006

J. P. Walker, G. R. Willgoose, and J. D. Kalma, One-Dimensional Soil Moisture Profile Retrieval by Assimilation of Near-Surface Measurements: A Simplified Soil Moisture Model and Field Application, Journal of Hydrometeorology, vol.2, issue.4, pp.356-373, 2001.
DOI : 10.1175/1525-7541(2001)002<0356:ODSMPR>2.0.CO;2

J. P. Walker and P. R. Houser, A methodology for initializing soil moisture in a global climate model: Assimilation of near-surface soil moisture observations, Journal of Geophysical Research: Atmospheres, vol.24, issue.6, pp.11761-11774, 2001.
DOI : 10.1029/2001JD900149

L. Wang and J. J. Qu, Satellite remote sensing applications for surface soil moisture monitoring: A review, Frontiers of Earth Science in China, vol.24, issue.D3, pp.237-247, 2009.
DOI : 10.1007/s11707-009-0023-7

J. R. Wang, A. Hsu, J. C. Shi, P. E. O-'neill, and E. T. Engman, A comparison of soil moisture retrieval models using SIR-C measurements over the little Washita River watershed, Remote Sensing of Environment, vol.59, issue.2, pp.308-320, 1997.
DOI : 10.1016/S0034-4257(96)00145-9

U. Wegmüller, The effect of freezing and thawing on the microwave signatures of bare soil, Remote Sensing of Environment, vol.33, issue.2, pp.123-135, 1990.
DOI : 10.1016/0034-4257(90)90038-N

A. Weisse, L. Oudin, and C. Loumagne, Assimilation of soil moisture into hydrological models for flood forecasting: comparison of a conceptual rainfall-runoff model and a model with an explicit counterpart for soil moisture. Revue des Sciences de l, Eau, Rev. Sci. Eau, vol.162, pp.173-197, 2003.

A. W. Western, R. B. Grayson, and G. Blöschl, Scaling of Soil Moisture: A Hydrologic Perspective, Annual Review of Earth and Planetary Sciences, vol.30, issue.1, pp.149-180, 2002.
DOI : 10.1146/annurev.earth.30.091201.140434

E. F. Wood, D. P. Lettenmaier, and V. G. Zartarian, A land-surface hydrology parameterization with subgrid variability for general circulation models, Journal of Geophysical Research, vol.103, issue.8, pp.2717-2728, 1992.
DOI : 10.1029/91JD01786

T. D. Wu and K. S. Chen, «A reappraisal of the validity of the IEM model for backscattering from rough surfaces», IEEE Transaction. on Geoscience. and Remote Sensing, vol.42, pp.743-753, 2004.

E. T. Zobeck and . C. Onstad, Tillage and rainfall effects on random roughness: A review, Soil and Tillage Research, vol.9, issue.1, pp.1-20, 1987.
DOI : 10.1016/0167-1987(87)90047-X

M. Zribi, F. Kotti, Z. Lili-chabaane, N. Baghdadi, B. Issa et al., Soil Texture Estimation Over a Semiarid Area Using TerraSAR-X Radar Data. Geoscience and Remote Sensing Letters, pp.353-357, 2012.
URL : https://hal.archives-ouvertes.fr/ird-00679652

M. Zribi, S. Saux-picart, C. André, L. Descroix, O. Ottlé et al., Soil moisture mapping based on ARSAR/ENVISAT radar data over a sahelian site, International Journal of remote Sensing, vol.28, issue.16, 2006.
URL : https://hal.archives-ouvertes.fr/hal-00149492

M. Zribi, N. Baghdadi, N. Holah, and O. Fafin, New methodology for soil surface moisture estimation and its application to ENVISAT-ASAR multi-incidence data inversion, Remote Sensing of Environment, vol.96, issue.3-4, pp.485-496, 2005.
DOI : 10.1016/j.rse.2005.04.005
URL : https://hal.archives-ouvertes.fr/hal-00151499

M. Zribi, Développement de nouvelles méthodes de modélisation de la rugosité pour la rétrodiffusion hyperfréquence de la surface du sol, 1998.

M. Zribi, O. Taconet, S. Mascle, D. Vidal-madjar, C. Emblanch et al., Backscattering behaviour and numerical simulation comparison over bare soils using SIRC/XSAR and ERASME 1994 database over Orgeval, pp.256-266, 1997.
DOI : 10.1016/s0034-4257(96)00158-7

H. Zwenzner and S. Voigt, Improved estimation of flood parameters by combining space based SAR data with very high resolution digital elevation data, Hydrol. Earth Syst, 2009.