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Thierry Ranchin

Thierry Ranchin

Research Director

Center · OIE

Discipline(s)
Applied Mathematics, Electrical Engineering, Electronics, Electromagnetics, Photonics and Systems, Energy, Thermal Sciences, Ocean, Atmosphere, Signal, Image, Automatic Control, Robotics and Industrial Engineering, Solid Earth
Topic(s)
Adaptation, Renewable Energy, Scenario-Modelling, Sustainable Development

Keywords

Awards & distinctions

  • 2018 Appointed by France as a member of the Program Board of the Group on Earth Observation (GEO) for the 2018–2020 term.The GEO Program Board is responsible for developing and implementing GEO activities. The O.I.E. center coordinates activities related to the use of Earth observation for renewable energy.
  • 2017 Knight of the Order of Academic Palms

Team

OIE

Biography

Thierry Ranchin is a researcher specializing in Earth observation, renewable energy, and the analysis of environmental and societal impacts. His work focuses on developing methods and tools for analyzing satellite data and integrating them into operational applications, particularly for assessing energy resources (solar, wind, and marine) and modeling environmental impacts. He has contributed to the development of methodological frameworks for life cycle assessment (LCA) and social life cycle assessment (S-LCA), with an emphasis on integrating participatory approaches and involving stakeholders. His research also includes work on the fusion of multi-source data, improving the spatial resolution of satellite imagery (the ARSIS concept), and the development of collaborative platforms for the co-design of services based on Earth observation data. His contributions are part of major European projects, such as e-shape and Copernicus, aimed at enhancing the interoperability and use of geospatial data to address societal and climate challenges.

Publication(s)

  • 2026
    Detailed and simplified parameterized LCA models for early-stage energy projects: A microalgae-based biogas case DOI : 10.1016/j.cesys.2025.100384
  • 2025
    Hierarchization of social impact subcategories: towards a systematic approach for enhanced stakeholders’ representativeness DOI : 10.1007/s11367-023-02275-6
  • 2024
    Towards Platform-Based Co-Design: Reconciling Contextualization and the Design of Genericity Through Retrofit DOI : 10.1109/IGARSS53475.2024.10642528
  • 2021
    LOOKING FOR REPRODUCIBILITY FOR EARTH OBSERVATION APPLICATIONS AT THE ABSTRACT LEVEL DOI : 10.1109/IGARSS47720.2021.9554220
  • 2021
    E-SHAPE - EUROGEO SHOWCASES: APPLICATION POWERED BY EUROPE CONTRIBUTION TO EUROGEO AND TO THE DEVELOPMENT OF THE EO INDUSTRY DOI : 10.1109/IGARSS47720.2021.9553426
  • 2020
    ASSESSMENT of six different methods for the estimation of surface ultra-violet FLUXES at one location in Uruguay DOI : 10.18086/swc.2019.42.13
  • 2020
    Which variables are essential for renewable energies? DOI : 10.1080/17538947.2019.1679267
  • 2019
    Advancing climate services for the European renewable energy sector through capacity building and user engagement DOI : 10.1016/j.cliser.2019.100139
  • 2018
    Extraction of bathymetric features using multiple SAR images produced by Sentinel-1 DOI : 10.1117/12.2325096
  • 2017
    Using ERA-Interim reanalysis for creating datasets of energy-relevant climate variables DOI : 10.5194/essd-9-471-2017
  • 2015
    Interoperable Exchange of Surface Solar Irradiance Observations: A Challenge DOI : 10.1016/j.egypro.2015.07.867
  • 2015
    Including the temporal change in PM2.5 concentration in the assessment of human health impact: Illustration with renewable energy scenarios to 2050 DOI : 10.1016/j.eiar.2014.09.003
  • 2014
    The HelioClim-1 database of daily solar radiation at earth surface: An example of the benefits of GEOSS data-CORE DOI : 10.1109/JSTARS.2013.2283791
  • 2012
    Benefit of GEOSS interoperability in assessment of environmental impacts illustrated by the case of photovoltaic systems DOI : 10.1109/JSTARS.2012.2196024
  • 2010
    Data fusion in remote sensing of urban and suburban areas DOI : 10.1007/978-1-4020-4385-7_11
  • 2009
    A new method for estimating solar energy resource
  • 2009
    Satellite data for high resolution offshore wind resource mapping: A data fusion approach
  • 2009
    Sitting of a solar power plant: Development of Web service based on GEOSS data and guidance
  • 2008
    Synthesis of multispectral images to high spatial resolution: A critical review of fusion methods based on remote sensing physics DOI : 10.1109/TGRS.2007.912448
  • 2008
    Foreword DOI : 10.1109/JSTARS.2008.2005379
  • 2008
    Adding virtual measuring stations to a network for urban air pollution mapping DOI : 10.1016/j.envint.2007.12.004
  • 2007
    Road networks derived from high spatial resolution satellite remote sensing data
  • 2006
    Remote sensing and image fusion methods: A comparison
  • 2006
    OSIrIS: a physically based simulation tool to improve training in thermal infrared remote sensing over urban areas at high spatial resolution DOI : 10.1016/j.rse.2006.03.017
  • 2006
    Short-term forecasting of offshore wind farm production - Developments of the anemos project
  • 2006
    A case based reasoning data fusion scheme: Application to offshore wind energy resource mapping DOI : 10.1109/ICIF.2006.301638
  • 2006
    Offshore wind resource assessment using satellite data: Uncertainties estimation
  • 2005
    Mapping offshore wind resources: Synergetic potential of SAR and scatterometer data DOI : 10.1109/JOE.2005.857504
  • 2005
    Fusion of spot P and XS images by different methods in the landscape changes of dam area, Yangtze Three Gorges Project Region, China
  • 2005
    Digital processing and information extraction of the SPOT, ERS-SAR, Radarsat and Landsat TM images for geological hazard in the Yangtze Three Gorges Project Region, China
  • 2004
    Quantitatively assessing roads extracted from high-resolution imagery DOI : 10.14358/PERS.70.12.1449
  • 2003
    Increasing the spatial resolution of gridded data by fusion with other data sets DOI : 10.1109/ICIF.2003.177444
  • 2003
    Detection and extraction of road networks from high resolution satellite images
  • 2003
    Digital processing and information extraction of multi-type and multi-temporal remote sensing images for geological hazard in the Yangtze Three Gorges Project Region, China
  • 2003
    The ARSIS concept in image fusion: An answer to users needs DOI : 10.1109/ICIF.2003.177442
  • 2003
    Extraction of urban features in Strasbourg, France: Comparison of two fusion algorithms for Quickbird MS and pan data DOI : 10.1109/DFUA.2003.1219988
  • 2003
    Different implementations of the ARSIS concept to fulfill users needs DOI : 10.1109/DFUA.2003.1220008
  • 2003
    Image fusion - The ARSIS concept and some successful implementation schemes DOI : 10.1016/S0924-2716(03)00013-3
  • 2003
    Quantitative evaluation of methods of street extraction: Choice of a reference of comparison; [Evaluation quantitative de methodes d'extraction de rues: Choix d'unereference de comparaison]
  • 2003
    Evaluating the offshore wind potential. A combined approach using remote sensing and statistical methods
  • 2003
    Urban street mapping using Quickbird and Ikonos images
  • 2002
    Evaluating offshore wind energy resource by spaceborne radar sensors: The use of advanced signal processing techniques DOI : 10.1117/12.452751
  • 2002
    Liu 'Smoothing filter-based intensity modulation: A spectral preserve image fusion technique for improving spatial details' DOI : 10.1080/01431160110088772
  • 2002
    Combined extraction of high spatial resolution wind speed and wind direction from SAR images: A new approach using wavelet transform DOI : 10.5589/m02-038
  • 2001
    Assessment of offshore wind power potential by space-borne radar: Towards a multi-source approach; [Evaluation du potentiel eolien offshore par radars spatio-portes: Vers une approche multisource]
  • 2001
    Applications of the orthophotomaps and fusion of Landsat TM, SPOT and SAR images in the studies of the events to stop up water body and ecological environment in the Yangtze Three Gorges Project Region (China) DOI : 10.1117/12.417007
  • 2001
    An automatic method for vine detection in airborne imagery using wavelet transform and multiresolution analysis
  • 2000
    Mapping of urban areas: A multiresolution modeling approach for semi-automatic extraction of streets
  • 2000
    Fusion of high spatial and spectral resolution images: The ARSIS concept and its implementation
  • 1999
    Wavelets for modeling in remote sensing
  • 1998
    Extraction of urban network from high spatial resolution imagery using the multiresolution analysis and the wavelet transform DOI : 10.1117/12.328128
  • 1998
    Using iterated rational filter banks within the arsis concept for producing 10m landsat multispectral images DOI : 10.1080/014311698214758
  • 1998
    Benefit of the future SPOT-5 and of data fusion to urban roads mapping DOI : 10.1080/014311698215324
  • 1997
    Apport de SPOT 5 à la cartographie urbaine
  • 1997
    Data fusion of remotely sensed images using the wavelet transform: The ARSIS solution DOI : 10.1117/12.279691
  • 1997
    ERS SAR imagery for urban climate studies
  • 1997
    Fusion of satellite images of different spatial resolutions: Assessing the quality of resulting images
  • 1995
    Fusion of images and raster-maps of different spatial resolutions by encrustation: An improved approach DOI : 10.1016/0198-9715(95)00014-Y
  • 1993
    Efficient data fusion using wavelet transform: The case of SPOT satellite images DOI : 10.1117/12.162061
  • 1993
    The wavelet transform for the analysis of remotely sensed images DOI : 10.1080/01431169308904362
  • 1993
    Applications of wavelet transform in remote sensing processing
  • 1993
    Speckle removal in SAR images using the wavelet transform
  • 1993
    Speckle reduction in synthetic aperture radar imagery using wavelets DOI : 10.1117/12.162085

Projects

  • 2019-2023 e-shape: EuroGEO Showcases Applications powered by Europe Lead Investigator Passer d’une approche centrée sur les données à une approche centrée sur l’utilisateur e-shape est une initiative unique qui rassemble des décennies d’investissements publics dans l’observation de la Terre et les capacités du cloud en services pour les décideurs, les citoyens, l’industrie et les chercheurs. Il permet à l’Europe de se positionner comme une force mondiale dans l’observation de la Terre en tirant parti de Copernicus, en utilisant les capacités européennes existantes et en améliorant l’adoption par les utilisateurs des données issues des ressources GEO. EuroGEO, en tant que contribution de l’Europe au Global Earth Observation System of Systems (GEOSS), vise à rassembler les ressources d’observation de la Terre en Europe. 37 applications pilotes dans 7 domaines thématiques abordent les défis sociétaux, favorisent l’entrepreneuriat et soutiennent le développement durable, en alignement avec les trois principales priorités du GEO (ODD, Accord de Paris et Cadre de Sendaï).
  • 2023-2025 EuroGEOSec Lead Investigator EuroGEO est la partie européenne du Groupe sur les observations de la Terre (GEO), un réseau mondial. L’initiative se concentrera sur les actions stratégiques suivantes : Engager le dialogue avec un large éventail d’utilisateurs en Europe pour identifier leurs besoins en services ou produits basés sur l’OT, en s’appuyant sur la vaste gamme de ressources européennes en OT et en abordant également les interconnexions entre divers groupes et domaines politiques. La démonstration, l’incubation, l’augmentation, la réduction ou la réplication des services et produits existants d’OT à travers l’Europe (et au-delà), également en rationalisant les instruments d’innovation disponibles aux niveaux européen, national ou sous-national et en promouvant activement les synergies ; Connecter les communautés européennes de recherche en OT, les fournisseurs de services, y compris le secteur privé, et les utilisateurs afin de permettre l’apprentissage mutuel et la diffusion des bonnes pratiques et des modèles d’affaires réussis à travers l’Europe ; En outre, la conception d’un écosystème numérique européen qui soutient l’accès et l’interopérabilité des données d’OT et offre des avantages aux entreprises, aux citoyens et aux scientifiques/chercheurs, et promeut la vision de GEO en Europe pour réaliser un avenir où les décisions et les actions sont éclairées par des preuves ; Soutenir la consolidation des structures nationales de gestion GEO à travers l’Europe.

PhD supervision

  • 2025 Life cycle assessment of the current and prospective French electricity mix: how to inform decisions despite methodological uncertainties? SCHLESINGER-MARTINAT Joanna
  • 2024 Dynamic and Prospective Evaluation of the Life Cycle of the French Electricity Mix: Capturing Temporal and Spatial Variability in Energy Systems NEVES STEINBACH Juliana
  • 2022 From cradle to grave – A comprehensive framework to account for uncertainty in life cycle assessment of emerging photovoltaic technologies WANG Lu
  • 2021 Environmental life cycle assessment of time-dependent dynamic microalgae-based energy production systems RAJAONISON Andriamahefasoa
  • 2020 Integration of Social Life Cycle Assessment as a tool for evaluation and decision-making support in the design phase of offshore wind farm projects in France LEHMANN Jeremie
  • 2015 Bathymetry estimation by Earth Observation for marine renewable energies CLOAREC Marc