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authIdHal_s : julien-brajard

Neuro-Variational Inversion Applied to Ocean Color Remote Sensing

Julien Brajard , Daouda Diouf , Hector-Simon Benavidès Pinjosovsky , Michel Crépon , Richard Santer , et al.
American Meteorological Society Annual Meeting, 2012, La Nouvelle Orléans, United States
Conference papers hal-00750316v1
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Atmospheric correction of SeaWiFS ocean color imagery in the presence of absorbing aerosols off the Indian coast using a neuro-variational method

Julien Brajard , Cyril Moulin , Sylvie Thiria
Geophysical Research Letters, 2008, 35, pp.20604. ⟨10.1029/2008GL035179⟩
Journal articles hal-00752788v1
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Automatic generation of parallel and coherent code using the YAO variational data assimilation framework

Luigi Nardi , Julien Brajard , Sylvie Thiria , Fouad Badran , Pierre Fortin
2016
Preprints, Working Papers, ... hal-00783328v2

Variational data assimilation in NEMO using YAO

Mohamed Berrada , Julien Brajard , Charles Deltel , Michel Crépon , Fouad Badran , et al.
Congrès European Geophysical Union, 2011, Vienne, Austria
Conference papers hal-00750253v1
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Modelling surface currents in the Eastern Levantine Mediterranean using surface drifters and satellite altimetry

Leila Issa , Julien Brajard , Milad Fakhri , Daniel Hayes , Laurent Mortier , et al.
Ocean Modelling, 2016, 104, pp.1-14. ⟨10.1016/j.ocemod.2016.05.006⟩
Journal articles hal-01357669v1
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Spatial Distribution of Aerosol Optical Thickness Retrieved from SeaWiFS Images by a Neural Network Inversion over the West African Coast

Daouda Diouf , Awa Niang , Julien Brajard , Salam Sawadogo , Michel Crépon , et al.
Aerosols-Science and Case Studies, InTech, 2016, 978-953-51-2843-4. ⟨10.5772/65874⟩
Book sections hal-01507520v1

Towards high performance stochastic arithmetic

Pacôme Eberhart , Julien Brajard , Pierre Fortin , Fabienne Jézéquel
16th international symposium on Scientific Computing, Computer Arithmetic and Validated Numerics (SCAN 2014), Sep 2014, Würzburg, Germany. pp.47-48
Conference papers hal-01217244v1
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Modeling Surface Currents in the Eastern Levantine Mediterranean

Leila Issa , Julien Brajard , Milad Fakhri , Laurent Mortier , Pierre-Marie Poulain
EGU General Assembly Conference, Apr 2015, Vienna, Austria. 17, pp.8888
Conference poster hal-01191755v1

Inverse method for the retrieval of ocean vertical profiles using self-organizing maps and hidden Markov models - Application on Ocean Colour Satellite Image Inversion

Anastase Alexandre Charantonis , Julien Brajard , Cyril Moulin , Fouad Badran , Sylvie Thiria
NCTA 2011 : NCTA- International Conference on Neural Computation Theory and Applications, 2011, Paris, France
Conference papers hal-00750300v1

Validation of a neuro-variational inversion of ocean colour images

Julien Brajard , Cédric Jamet , Cyril Moulin , Sylvie Thiria
Advances in Space Research, 2006, 38 (10), pp.2169-2175. ⟨10.1016/j.asr.2006.03.039⟩
Journal articles istex hal-00750296v1

Numerical Validation of Data Assimilation Codes Generated by the YAO Software

Julien Brajard , Pei Li , Fabienne Jézéquel , Hector-Simon Benavidès Pinjosovsky , Sylvie Thiria
SIAM Annual Meeting, Jul 2013, San Diego, California, United States
Conference papers hal-01216453v1

Inversion of sea surface data to retrieve the vertical distribution of phytoplankton using a statistical methodology

Anastase Alexandre Charantonis , Sylvie Thiria , Cyril Moulin , Julien Brajard
Congrès European Geophysical Union, 2011, Vienne, Austria
Conference papers hal-00750248v1
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Estimation of Round-off Errors in OpenMP Codes

Pacôme Eberhart , Julien Brajard , Pierre Fortin , Fabienne Jézéquel
IWOMP 2016 - 12th International Workshop on OpenMP, Riken AICS, Oct 2016, Nara, Japan. pp.3-16, ⟨10.1007/978-3-319-45550-1_1⟩
Conference papers hal-01380131v1
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Variational assimilation of land surface temperature within the ORCHIDEE Land Surface Model Version 1.2.6

Hector-Simon Benavidès Pinjosovsky , Sylvie Thiria , Catherine Ottlé , Julien Brajard , Fouad Badran , et al.
Geoscientific Model Development, 2017, 10 (1), pp.85-104. ⟨10.5194/gmd-10-85-2017⟩
Journal articles hal-01492602v1

Predicting Ocean Dynamics through Machine Learning: Application on Sea-Surface Suspended Particulate Mater

Julien Brajard , Anastase Alexandre Charantonis , Frédéric Jourdin
American Meteorological Society Annual Meeting 2017, American Meteorological Society, Jan 2017, Seattle, United States
Conference papers hal-01477182v1

Multivariate analysis of the Senegalo-Mauritanien area by merging satellite remote sensing ocean color and SST observations

Ousmane Farikou , Salam Sawadogo , Niang Awa , Julien Brajard , Carlos Mejia
Journal of Research in Environmental and Earth Sciences, 2013, ⟨10.19026/RJEES.5.5733⟩
Journal articles hal-02079429v1
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Inferring the seasonal evolution of phytoplankton groups in the Senegalo-Mauritanian upwelling region from satellite ocean-color spectral measurements

Ousmane Farikou , Salam Sawadogo , Awa Niang , Daouda Diouf , Julien Brajard , et al.
Journal of Geophysical Research. Oceans, 2015, 120 (9), pp.6581--6601. ⟨10.1002/2015JC010738⟩
Journal articles istex hal-01507522v1
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High Performance Numerical Validation using Stochastic Arithmetic

Pacôme Eberhart , Julien Brajard , Pierre Fortin , Fabienne Jézéquel
Reliable Computing, 2015, 21, pp.35-52
Journal articles hal-01254446v1
Image document

Determination of phytoplankton groups from ocean color spectral measurements in the Senegalo-Mauritanian upwelling

Ymane Taoufiq , Ousmane Farikou , Séverine Alvain , Julien Brajard , Michel Crépon , et al.
Ocean Optics, The Oceanography Society (TOS), Oct 2014, Portland, Maine, United States
Conference papers hal-01191676v1

Use of a neuro-variational inversion for retrieving oceanic and atmospheric constituents from satellite ocean colour sensor: Application to absorbing aerosols

Julien Brajard , Cédric Jamet , Cyril Moulin , Sylvie Thiria
Neural Networks, 2006, 19, pp.178-185. ⟨10.1016/j.neunet.2006.01.015⟩
Journal articles istex hal-00122477v1

Estimating aerosol parameters above the ocean from MERIS observations using topological maps

Julien Brajard , Awa Niang , Salam Sawadogo , Frank Fell , Richard Santer , et al.
International Journal of Remote Sensing, 2007, 28 (3-4), pp.781--795. ⟨10.1080/01431160600821101⟩
Journal articles hal-01507524v1

Ensemble variational data assimilation with a shallow-water model: preliminary results

Julien Brajard , Jérôme Sirven , Olivier Talagrand
EGU General Assembly, Apr 2016, Vienne, Austria. pp.14836
Conference papers hal-01507519v1

Determination of phytoplankton groups from space: application to senegalo-mauritanean upwelling

Yala Khalil , Julien Brajard , Michel Crépon , Éric Machu , Ndèye Niang
EGU General Assembly, 2016, Vienne, Austria. pp.15098
Conference papers hal-01507521v1

Retrieving aerosol characteristics and sea-surface chlorophyll from satellite ocean color multi-spectral sensors using a neural-variational method

Daouda Diouf , Awa Niang , Julien Brajard , Michel Crépon , Sylvie Thiria
Remote Sensing of Environment, 2013, 130, pp.74 - 86. ⟨10.1016/j.rse.2012.11.002⟩
Journal articles hal-01495282v1

Retrieving aerosol characteristics from satellite ocean color multi-spectral sensors using a neural-variational method

Daouda Diouf , Sylvie Thiria , Awa Niang , Julien Brajard , Michel Crépon
NCTA 2011 : NCTA- International Conference on Neural Computation Theory and Applications, 2011, Paris, France
Conference papers hal-00750307v1

Inversion of satellite ocean colour imagery and geoacoustic characterization of seabed properties: Variational data inversion using a semi-automatic adjoint approach

Fouad Badran , Mohamed Berrada , Julien Brajard , Michel Crépon , Charles Sorror , et al.
Journal of Marine Systems, 2008, 69 (1-2), pp.126--136. ⟨10.1016/j.jmarsys.2007.02.018⟩
Journal articles istex hal-01507523v1
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Silicon cycle in Indian estuaries and its control by biogeochemical and anthropogenic processes

K.R. Mangalaa , Damien Cardinal , Julien Brajard , D.B. Rao , N.S. Sarma , et al.
Continental Shelf Research, 2017, 148, pp.64-88. ⟨10.1016/j.csr.2017.08.011⟩
Journal articles hal-01651900v1

Atmospheric correction and chlorophyll-a restitution in presence of Saharan dusts

Daouda Diouf , Julien Brajard , Awa Niang , Salam Sawadogo , Michel Crépon , et al.
Congrès European Geophysical Union, 2011, Vienne, Austria
Conference papers hal-00750241v1

Atmospheric correction of MERIS data for case-2 waters using a neuro-variational inversion

Julien Brajard , Richard Santer , Michel Crépon , Sylvie Thiria
Remote Sensing of Environment, 2012, 126, pp.51 - 61. ⟨10.1016/j.rse.2012.07.004⟩
Journal articles istex hal-01495015v1