KARBOU Fatima

Fatima Karbou | DR2 Développement Durable | fatima.karbou@meteo.fr

Fatima Karbou

DR2 Développement Durable

Télécharger CV

fatima.karbou@meteo.fr

Résumé

Mes recherches incluent la télédétection spatiale des surfaces terrestres. J'ai travaillé sur la compréhension de la physique de la mesure dans les micro-ondes et sur l'estimation de l'émissivité des surfaces continentales et de glaces de mer à ces fréquences micro-ondes comme pre-requis pour l'assimilation des observations des imageurs/profileurs passifs micro-ondes dans les modèles globaux de prévision numérique du temps. Depuis 2011, et suite à une mobilité géographique avec changement de thématique (Toulouse vers Grenoble), je suis chercheur au Centre d'Etudes de la Neige. Mes thématiques actuelles de recherche comprennent le suivi de l'enneigement en montagne et la caractérisation d'indicateurs sur l'activité avalancheuse par l'exploitation d'images satellitaires SAR. Je travaille également sur une meilleure caractérisation de certaines grandeurs atmosphériques en montagne.

Expérience

2016-présent

DR2 - CNRM/CEN

Saint Martin d'Hères

2011-2015

CR1 - CNRM/CEN

Saint Martin d'Hères

2007-2010

CR2 - CNRM/GMAP

Toulouse

2005-2007

Post-doc CNES

CNRM/GMAP, Toulouse

2001-2004

Thèse de Doctorat

CETP, Vélizy

2000-2001

Ingénieur chercheur

ACRI-SA, Sophia-Antipolis

Diplômes

Juin 2010

Habilitation à Diriger des Recherches, Univ. P.S. Toulouse III

Apport de l'assimilation des observations micro-ondes au-dessus des surfaces continentales

Octobre 2004

Thèse de Doctorat, Univ. Versailles St Quentin en Yvelines

Inversion des mesures radiométriques haute-fréquence au-dessus des surfaces continentales

Encadrement de thèses

  • 2022-2025: Clémence Turbé

    Variabilité saisonnière et inter-annuelle de l'enneigement en montagne par imagerie SAR de Sentinel-1

    Direction: : F. Karbou, A. Rabatel

  • 2021-2024: Matthieu Gallet

    Modèles de neurones convolutifs pour la caractérisation et l’analyse des dynamiques de la cryosphère

    Direction: : E. Trouvé , A. Atto , F. Karbou

  • 2020-2023: Louis Le Toumelin

    Descente d’échelle du vent par méthodes d’apprentissage profond: implications pour la nivologie et ses Enjeux, Financement bourse ministérielle

    Direction: I. Gouttevin, F. Karbou

  • 2019-2022: Anna Karas

    Télédétection spatiale des dépôts d'avalanches pour le suivi des zones à risque naturel avalancheux

    Direction: F. Karbou, N. Eckert

  • 2016-2019: Tony Le Bastard

    Utilisation des données radar volumiques et d'un modèle de PNT à haute résolution pour une meilleure estimation quantitative des précipitations en plaine et sur les massifs montagneux

    Direction: F. Karbou, N. Gaussiat, O. Caumont

  • 2015-2018, Gaelle Veyssière

    Apport des mesures SAR de Sentinel-1 pour l’étude des propriétés du manteau neigeux

    Direction: F. Karbou, S. Morin

  • 2014-2017, Laura Hermozo

    Apport des mesures micro-onde passives pour l’exploitation des données altimétriques au-dessus de surfaces complexes

    Direction: L. Eymard, F. Karbou, B. Picard

  • 2014-2017: Louis Quéno

    Vers une nouvelle chaîne de modélisation, météorologique et nivologique, en montagne AROME SURFEX / Crocus

    Direction: I. Etchevers, V. Vionnet, F. Karbou

  • 2012-2015: Camille Birman

    Vers une analyse des précipitations dans AROME

    Direction: F. Karbou, J-F. Mahfouf

  • 2008-2011: Stéphanie Guedj

    Assimilation des observations satellites au-dessus des surfaces continentales

    Direction: F. Karbou, F. Rabier

Publications

Articles soumis ou en révisions

  1. Gallet, M., A. Atto, F. Karbou, E. Trouvé (2023), Wet Snow Detection from Satellite SAR Images by Machine Learning with Physical Snowpack Model Labelling, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Soumis.
  2. Karas, A., F. Karbou, N. Eckert (2023), Regional-scale assessment of avalanche activity from Remote Sensing SAR-based avalanche debris: insights from the French Alps, Cold Regions Science and Technology, revised.

Articles publiés ou acceptés

  1. Guiot, A.; Karbou, F.; James, G.; Durand, P. Insights into Segmentation Methods Applied to Remote Sensing SAR Images for Wet Snow Detection. Geosciences 2023, 13, 193. https://doi.org/10.3390/geosciences13070193 .
  2. Le Toumelin, L., I. Gouttevin, N. Helbig, C. Galiez, M. Roux, and F. Karbou (2023), Emulating the Adaptation of Wind Fields to Complex Terrain with Deep Learning. Artif. Intell. Earth Syst., 2, e220034, https://doi.org/10.1175/AIES-D-22-0034.1.
  3. Karbou, F., G. James, M. Fructus, F. Marti (2022), On the Evaluation of the SAR-Based Copernicus Snow Products in the French Alps. Geosciences 2022, 12, 420. https://doi.org/10.3390/geosciences12110420
  4. Kaushik, S., B. Cerino, E. Trouvé, F. Karbou, Y. Yan, L. Ravanel, F. Magnin (2022),Analysis of the temporal evolution of ice aprons in the Mont-Blanc massif using X and C-band SAR images, Frontiers in remote Sensing, 3, 2022, 10.3389/frsen.2022.930021
  5. Karas, A., F. Karbou, S. Giffard-Roisin, P. Durand and N. Eckert (2022), "Automatic Color Detection-Based Method Applied to Sentinel-1 SAR Images for Snow Avalanche Debris Monitoring," in IEEE Transactions on Geoscience and Remote Sensing, vol. 60, pp. 1-17, 2022, Art no. 5219117, doi: 10.1109/TGRS.2021.3131853.
  6. Karbou, F., G. James, Ph. Durand, A. M. Atto (2021), Thresholds and distances to better detect wet snow over mountains with Sentinel-1 SAR image time series, ISTE-WILEY Science- Change Detection and Image Time-Series Analysis, Volume 1: unsupervised methods, Chap. 5, https://doi.org/10.1002/9781119882268.ch5.
  7. Atto, A. M., F. Karbou, S. Giffard-Roisin, L. Bombrun (2021), Unsupervised Functional Information Clustering in Extreme Environments from Filter Banks and Relative Entropy, STE-WILEY Science- Change Detection and Image Time-Series Analysis, Volume 1: unsupervised methods, Chap. 4, https://doi.org/10.1002/9781119882268.ch4
  8. Karbou, F.; Veyssière, G.; Coleou, C.; Dufour, A.; Gouttevin, I.; Durand, P.; Gascoin, S.; Grizonnet, M. Monitoring Wet Snow Over an Alpine Region Using Sentinel-1 Observations. Remote Sens. 2021, 13, 381. https://doi.org/10.3390/rs13030381
  9. Quéno, L., F. Karbou, V. Vionnet, I. Dombrowski-Etchevers (2020), Satellite products of incoming solar and infrared radiations used for snowpack modelling in mountainous terrain, Hydrol. Earth Syst. Sci., in press.
  10. Le Bastard, T., O. Caumont, N. Gaussiat, and F. Karbou (2019), Combined use of volume radar observations and high-resolution numerical weather predictions to estimate precipitation at the ground: methodology and proof of concept, Atmos. Meas. Tech. Discuss., https://doi.org/10.5194/amt-2019-166, 2019, in press.
  11. Veyssière, G., F. Karbou, S. Morin, M. Lafaysse, V. Vionnet (2019), Evaluation of Sub-Kilometric Numerical Simulations of C-Band Radar Backscatter over the French Alps against Sentinel-1 Observations, Remote Sensing, vol. 1, no. 1, 2019.
  12. Hermozo, L., L. Eymard, F. Karbou, B. Picard, and M. Pardé (2019), A 1D-Var Approach to Retrieve Clear-Sky Wet Tropospheric Correction from Current and Future Altimetry Missions. J. Atmos. Oceanic Technol., 36, 473–489, https://doi.org/10.1175/JTECH-D-17-0133.1
  13. Gaillardet, et al. (\textbf{2018}), OZCAR : The French Network of Critical Zone Observatories. Vadose Zone Journal, 17, 180067, doi 10.2136.
  14. Birman, C., F. Karbou, J. Mahfouf, M. Lafaysse, Y. Durand, G. Giraud, L. Mérindol, and L. Hermozo (2017), Precipitation Analysis over the French Alps Using a Variational Approach and Study of Potential Added Value of Ground-Based Radar Observations. J. Hydrometeor., 18, 1425–1451, doi: 10.1175/JHM-D-16-0144.1.
  15. Hermozo, L., L. Eymard and F. Karbou (2017), "Modeling Sea Ice Surface Emissivity at Microwave Frequencies: Impact of the Surface Assumptions and Potential Use for Sea Ice Extent and Type Classification," in IEEE Transactions on Geoscience and Remote Sensing, vol. 55, no. 2, pp. 943-961, Feb. 2017. doi: 10.1109/TGRS.2016.2616920.
  16. Vionnet V., F. Naaim-Bouvet, Y. Deliot, H. Bellot , F. Karbou, M. Naaim, G. Guyomarc’h, Y. Durand ( 2017), Col du Lac Blanc : un site observatoire pour l’observation et la modélisation de la neige en haute montagne, La Météorologie, 2017, 99, p. 35-44
  17. Rabatel, A.,E. Berthier, Y. Arnaud,J-P. Dedieu,M. Dumont, S. Gascoin, M. Gay, K. Guerreiro, F. Karbou, A. Kouraev, G. Picard, F. Rémy, P. Sirguey, E. Trouvé, E. Zakharova (2017), Télédétection satellitaire des surfaces enneigées et englacées, La Météorologie, DOI : 10.4267/2042/62170.
  18. Wang, D., C. Prigent, L. Kilic, S. Fox, C. Harlow, C. Jimenez, F. Aires, C. Grassotti, and F. Karbou, 2017, Surface emissivity at microwaves to millimeter waves over polar regions: Parameterization and evaluation with aircraft experiments, J. Atmos. Ocean. Techno., 34, 5, 1039-1059.
  19. Quéno, L., Vionnet, V., Dombrowski-Etchevers, I., Lafaysse, M., Dumont, M., and Karbou, F., 2016, Snowpack modelling in the Pyrenees driven by kilometric-resolution meteorological forecasts, The Cryosphere, 10, 1571-1589, https://doi.org/10.5194/tc-10-1571-2016.
  20. Birman, C., F. Karbou, and J-F. Mahfouf (2015), Daily Rainfall Detection and Estimation over Land Using Microwave Surface Emissivities. J. Appl. Meteor. Climatol., 54, 880–895.
  21. Karbou, F. (2015), Techniques for modelling land, snow and sea ice emission and scattering, Proceedings of ECMWF annual seminar: Use of Satellite observations in Numerical Weather Prediction, available from https://www.ecmwf.int/en/elibrary/
  22. Karbou, F., F. Rabier, C. Prigent (2014), The assimilation of observations from the Advanced Microwave Sounding Unit over sea ice in the French global Numerical Weather Prediction system. Monthly Weather Review, Vol. 142, No. 1., pp 125-140.
  23. Beucher, F., J.-P. Lafore, F. Karbou, R. Roca (2014), High-resolution prediction of a major convective period over West Africa. Q.J.R. Meteorol. Soc., 140: 1409–1425. doi: 10.1002/qj.2225
  24. Lavaysse C., Eymard L., Flamant C., Karbou F., Mimouni M., Saci A (2013), Monitoring the West African heat low at seasonal and intra seasonal time scales using AMSU-A sounder, Atmospheric Science Letters, 14, 4, 263-271
  25. Cohn, S. A, T. Hock, P. Cocquerez, J. Wang, F. Rabier, D. Parsons, P. Harr, C. Wu, P. Drobinski, F.Karbou, S. Venel, A. Vargas, N. Fourrié, N. Saint-Ramond, V. Guidard, A. Doerenbecher, H. Hsu, P.Lin, M. Chou, J-L. Redelsperger, C. Martin, J. Fox, N. Potts, K. Young, and H. Cole (2013),Driftsondes : Providing In-Situ, Long-Duration, Dropsonde Observations over Remote Regions. Bull. Amer. Meteor. Soc., in press.
  26. Drobinski, P., F. Karbou, P. Bauer, P. Cocquerez, C. Lavaysse, T. Hock, D. Parsons, F. Rabier, J-L.Redelsperger, S. Vénel (2013) Driftsonde observations to evaluate numerical weather prediction of the late 2006 African monsoon, J. Appl. Meteor. Climatol., 52, 974–995.
  27. Brun, E., V. Vionnet, A. Boone, B. Decharme, Y. Peings, R. Valette, F. Karbou, S. Morin (2013), Simulation of Northern Eurasian Local Snow Depth, Mass, and Density Using a Detailed Snowpack Model and Meteorological Reanalyses. J. Hydrometeor, 14, 203-219.
  28. Eymard L., C. Baron, G. Caniaux, C. Flamant, L. Kergoat, F. Karbou, J.A Ndione, T. Pellarin, N. Martiny, J. Ramahoretra, E. Vintrou, R. Roca (2012), L’observation spatiale dans le programme AMMA, La Météorologie, sous presse.
  29. Ferraro, R., C. Peters-Lidard, C. Hernandez, F. Turk, F. Aires, C. Prigent, X. Lin, S. Boukabara, F. Furuzawa, K. Gopalan, K. Harrison, F. Karbou, L. Li, C. Liu, H. Masunaga, L. Moy, S. Ringerud, G. Skofronick-Jackson, Y. Tian, N.-Y Wang (2012), An evaluation of microwave land surface emissivities over the continental United States to benefit GPM-era precipitation algorithms, IEEE-TGRS, sous presse.
  30. Guedj, S., F. Karbou, F. Rabier (2012), Land surface temperature estimation to improve the assimilation of SEVIRI radiances over land, J. Geophysical Research,VOL.116, D14107, 18 PP., doi:10.1029/2011JD015776.
  31. Karbou, F., F. Beucher, O. Bock, J-P. Lafore, Z. Mumba, J-B. Ngamini, M. Nuret, F. Rabier, J-L. Redelsperger (2012), Les leçons de l'expérience AMMA en matière de Prévision Numérique du Temps, La Météorologie, 8ième série, octobre 2012, pp 49-54.
  32. Fink, A. H., Agustí-Panareda, A., Parker, D. J., Lafore, J.-P., Ngamini, J.-B., Afiesimama, E., Beljaars, A., Bock, O., Christoph, M., Didé, F., Faccani, C., Fourrié, N., Karbou, F., Polcher, J., Mumba, Z., Nuret, M., Pohle, S., Rabier, F., Tompkins, A. M. and Wilson, G. (2011), Operational meteorology in West Africa : observational networks, weather analysis and forecasting. Atmospheric Science Letters, 12 : 135–141. doi : 10.1002/asl.324
  33. Gérard, E., F. Karbou, F. Rabier (2011), Potential use of Surface Sensitive Microwave Observations over Land in Numerical Weather Prediction, IEEE Trans. on Geoscience and Remote sensing, Volume : 49 Issue 4, 1251 - 1262, doi:10.1109/TGRS.2010.2075936
  34. Calvet, J-C, J-P. Wigneron, J. Walker, F. Karbou, A. Chanzy (2011), Sensitivity of passive microwave observations to soil moisture and vegetation water content : from L-band to W-band, IEEE Trans. on Geoscience and Remote sensing, Volume : 49 Issue 4, 1190 - 1199.doi:10.1109/ TGRS.2010.2050488
  35. Eymard, L., F. Karbou, S. Janicot, N. Chouaib, F. Pinsard (2010), On the use of Advanced Microwave Sounding Unit-A and -B measurements for studying the monsoon variability over West Africa, J. Geophysical Research, Vol. 115, D20115, doi:10.1029/2009JD012935.
  36. Bouchard, A., F. Rabier, V. Guidard, F. Karbou (2010), Enhancement of satellite data assimilation over Antarctica, Monthly Weather Review, Vol. 138, No. 6., 2149–2173, doi : 10.1175/2009MWR3071.1.
  37. Guedj, S., F. Karbou, F. Rabier, A. Bouchard (2010), Microwave land emissivity over Antarctica : Impact of the surface approximation, IEEE Trans. on Geoscience and Remote sensing, Vol. 48, Issue 4, 1976-1985, 10.1109/ TGRS.2009.2036254
  38. Karbou, F., E. Gérard, F. Rabier (2010), Global 4D-Var assimilation and forecast experiments using AMSU observations over land. Part-I : Impact of various land surface emissivity parameterizations, Weather and Forecasting, 25, 5–19, doi : 10.1175/2009WAF2222243.1
  39. Karbou, F., F. Rabier, J-P. Lafore, J-L. Redelsperger, O. Bock (2010), Global 4D-Var assimilation and forecast experiments using AMSU observations over land. Part II : Impact of assimilating surface sensitive channels on the African Monsoon during AMMA, Weather and Forecasting, 25,20–36, doi : 10.1175/2009WAF2222244.1
  40. Rabier, F., A. Bouchard, E. Brun, A. Doerenbecher, S. Guedj, V. Guidard, F. Karbou, V.H. Peuch, L. El amraoui, D. Puech, C. Genthon, G. Picard, M. Town, A. Hertzog, F. Vial, P. Cocquerez, S.A. Cohn, T. Hock, J. Fox, H. Cole, D. Parsons, J. Powers, K. Romberg, J. Vanandel, T. Deshler, J. Mercer, J.S. Haase, L. Avallone, L. Kalnajs, C.R. Mechoso, A. Tangborn, A. Pellegrini, Y. Frenot, J.N. Thépaut, A. NcNally, G. Balsamo and P. Steinle (2010), The CONCORDIASI project in Antarctica. Bull. Amer. Meteor. Soc.,91, 69-86.
  41. Rabier, F., A. Bouchard, E. Brun, A. Doerenbecher, S. Guedj, V. Guidard, F. Karbou, V.H. Peuch, L. El amraoui, D. Puech, C. Genthon, G. Picard, M. Town, A. Hertzog, F. Vial, P. Cocquerez, S.A. Cohn, T. Hock, J. Fox, H. Cole, D. Parsons, J. Powers, K. Romberg, J. Vanandel, T. Deshler, J. Mercer, J.S. Haase, L. Avallone, L. Kalnajs, C.R. Mechoso, A. Tangborn, A. Pellegrini, Y. Frenot, J.N. Thépaut, A. NcNally, G. Balsamo and P. Steinle (2010), Le projet CONCORDIASI en Antarctique. La Météorologie, N°69, pp. 42-55, DOI : 10.4267/2042/32912
  42. Faccani, C., F. Rabier, N. Fourrié, A. Agusti-Panareda, F. Karbou, P. Moll, J-P. Lafore, M. Nuret, F. Hdidou, O. Bock (2009), The impact of the AMMA radiosonde data on the French global assimilation and forecast system, Weather and Forecasting, Vol. 24, Iss. 5, pp. 1268–1286, doi : 10.1175 / 2009WAF2222237.1
  43. 9. Karbou, F. (2008), Treatment of surface emissivity in satellite data assimilation, Proceeding of the ECMWF seminar on Recent Developments in the Use of Satellite Observations in Numerical Weather Prediction available from https://www.ecmwf.int/en/elibrary/
  44. Karbou, F., E. Gérard, and F. Rabier (2006), Microwave land emissivity and skin temperature for AMSU-A and -B assimilation over land, Q. J. R. Meteorol. Soc., vol. 132, No. 620, Part A, pp. 2333-2355(23), doi : 10.1256/qj.05.216
  45. Eymard, L., and F. Karbou (2006), On the Use of Microwave Radiometry for atmosphere humidity monitoring : Recent Results and Open Issues, IEEE MicroRad, pp. 265-269, doi:10.1109/MICRAD.2006.1677101
  46. Prigent, C., F. Chevallier, F. Karbou, P. Bauer, and G. Kelly (2005), AMSU-A surface emissivities for numerical weather prediction assimilation schemes, Journal of Applied Meteorology, 44, 416-426, doi : 10.1175/JAM2218.1
  47. Eymard, L., E. Obligis, N. Tran, F. Karbou, A. Pilon, and M. Dedieu (2005), Long term stability of ERS2 and TOPEX microwave radiometer in-flight calibration, IEEE Trans. on Geoscience and Remote Sensing, 43, 5, 1144-1158, doi:10.1109/TGRS.2005.846129
  48. Karbou, F. (2005), Two microwave land emissivity parameterizations suitable for AMSU observations. IEEE Trans. on Geoscience and Remote Sensing, 43, 8, 1788-1795, doi:10.1109 /TGRS.2005.851168
  49. Karbou, F., and C. Prigent (2005), Calculation of microwave land surface emissivities from satellite observations : validity of the specular approximation over snow-free surfaces ? IEEE Trans. Geosci. Remote Sensing Letters, 2, 3, 311-314, doi:10.1109 /LGRS.2005.847932
  50. Karbou, F., F. Aires, C. Prigent and L. Eymard (2005), Potential of Advanced Microwave sounding Unit-A (AMSU-A) and AMSU-B measurements for temperature and humidity sounding over land. J. Geophysical Research, 110, D07109,doi:10.1029/2004JD005318
  51. Karbou, F., C. Prigent, L. Eymard and J. Pardo (2005), Microwave land emissivity calculations using AMSU-A and AMSU-B measurements. IEEE Trans. on Geoscience and Remote Sensing, 43, 5, 948-959,10.1109/ TGRS.2004.837503

Fatima KARBOU — fatima.karbou@meteo.fr — CNRM/CEN, 1441 Rue de la Piscine, Domaine Universitaire, 38400, Saint Martin d'Hères, France