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Sébastien GADAL

Professor of Geography in Spatial Analysis and Geomatics at Aix-Marseille University - CNRS UMR7300 ESPACE.
22
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Affiliations actuelles
  • 198056
  • 87217
  • 303686
  • 300115
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Présentation

**Research Areas** My area of research concerns the analysis of the processes of urbanization and territorial development in the context of globalization, climate changes, and adaption in the post-soviet territories: South-Est Baltic, Siberia, The Arctic, and the Sub-Arctic regions, including the coastal zones. I am working also in Africa (Niger, Chad Lake...), before in India. Geographic Analysis is based on the development and implementation of Earth Observation remote sensing monitoring systems and geo-simulations: multispectral, hyperspectral imagery, artificial intelligence, massive data image processing, multi-temporal geographic knowledge systems, GIS. **Geographic information science** -Remote sensing, image processing, and image analysis -GIS, spatial modelling, and geo-simulation -Knowledge models, geographic ontologies, and artificial intelligence **Urban geography, territorial development, and adaptation of the climate change and globalisation** -Metropolisation -Territorial development and adaption of climate change and globalization -Environmental interactions -Geopolitical issues **Geographic areas** -The Arctic and Circumpolar regions -Post-Soviet countries and Siberia -Baltic and Nordic countries -The Mediterranean area -West Africa **Scientific leadership** -U-Arctic Representative (AMU) (2022-) -Co-Head of the research cluster (UMR 7300 ESPACE) Transformations and Urban Futures (2024- ) -Co-Head of the Spatial analysis research cluster teams (UMR 7300 ESPACE) (2018-2023) -Head of the research team Geographic Image Analysis (UMR 7300 ESPACE) (2018-2023) -A representative of the international affairs (CNRS INSHS) (2019-) -A member of the ESPACE laboratory streaming committee (2018-) -A member of the French-Russian University (Space Observation and Sensors) (2020-2022) -An associate researcher of the LIMEEP-PS (OVSQ, Paris Saclay University) (2023- ) **Academic leadership** -Director of the master’s program of Geography (GAED) (2013-) -Head of the master Geomatics and Spatial Modelling (2020-) -Head of the Double International Master in Geomatic and Environment (2016-2024) -Head of the master COAST (2018-2020) -Member of the Faculty Study Committee (2016-) -Member of the Faculty Pedagogic Committee (2017-) -Executive committees of the Institutes: SoMuM (2019-), ITEM (2020-), OCEAN (2021-) **Science diplomacy, and expertise** -French Ministry of the Foreign Affairs: +Member of the Scientific and Strategic Council of the Foreign Affair (2020/21- ) (TRIAC area) +Arctic Council Representative (PAME, SDWG, A-SDI) (2014-2022) -Member of the Russian Chinese Arctic Science Gov. Cooperation (2015-2022) -Expert of the European Research Executive Agency, European Commission (2021-) **University and research positions** *Present positions* -(2013- ) Full Professor (Professeur des universités, PRCEX1, HDR) of Geography in Geomatic and Spatial Analysis, Aix-Marseille Université, UMR 7300 ESPACE, France -(2023- ) Director of research (tenure track) (0.20), Institute of Mathematic Computer Science, Remote Sensing A.I. Research Team, Vilnius University, Lithuania *Past positions* -(2013-2023) Full Professor (B.K.C.) (Very high specialist) (0.25) of Geography in Geomatic and Arctic Studies, North-Eastern Federal University, Yakutia, RF -(2012-2018) Head of Lab., Streaming Committee member, WCTI Partners, University City Center, Philadelphia, USA -(2008-2012) Technical Advisor, Themis Vision Systems, IDT, John Stennis Space Center, NASA, USA -(2005-2013) Associate Professor of Geography in Geomatic and Planning (tenure), Université de Versailles Saint-Quentin-en-Yvelines, OVSQ, C3ED IRD, CEMOTEV, France -(2003-2004) Assistant Professor of Urbanism in Geomatic and Urban Planning, Université de technologie de Compiègne, Dept. Génie des systèmes Urbains, France -(2002-2003) Assistant Professor of Geography in Geomatic and Cartography, Université Paris 7 Paris Diderot, UMR 7135 SEDET, Pôle image, France -(2002-2009) Lecturer of Applied Mathematics in Statistics, Mathematics, and GIS, Université de Marne-la-Vallée, CFA, AUF, France -(2001-2002) Post-doc researcher (AUF), UMR 8557 CAMS/EHESS, France & Université Hassan 2 Aïn Chock, Morocco -(1997-2001) PhD candidate, EHESS-Université Aix-Marseille 1, UMR 8557 CAMS/EHESS, France (UMR 8557 CAMS/EHESS: 1995-2004) *Some Visiting Professor and Visiting Research Fellow Positions* -(2022) Arctic University of Norway, CNCU Grant, Tromso, Norway -(2021) Institut français de Finlande, LapLand University, SAMPO Grant, Finland -(2020) Institut français de Suède, TOR Grant, Sweden -(2014) Council of Science of Lithuania, Klaipeda University, Grant of Scientific Excellence, Lithuania -(2013) Institut français de Finlande, University of Helsinki, SAMPO Grant, Finland -(2010-2011) Kaunas University of Technology, Kaunas, Lithuania -(2008-2012) Lund University, GIS Centrum, Lund, Sweden -(2008-2020) Klaipeda University, Klaipeda, Lithuania Holder of a bonus for scientific excellence, Ministry of research and high education (2013-2017) (2021-2025)

Domaines de recherche

Modélisation et simulation Géographie Environnement et Société Méthodes et statistiques Traitement des images [eess.IV]

Compétences

Urban Geography and Metropolisation Geography of Development Territorial Adaptation (Climate Change, Globalisation, and Conflicts) Geopolitic Remote Sensing GIS Spatial Analysis Geo-simulation Artificial Intelligence Arctic Nordic countries Russia Asia (Northern Asia and Indonesia) Environmental issues and Societal impacts Science Diplomacy

Publications

walid-ouerghemmi

Spatial modelling of the Arctic metapolis: Yakutsk

Sébastien Gadal , Mounir Oukhattar , Jūratė Kamičaitytė , Moisei Zakharov , W. Ouerghemmi
GIS for Digital Development 2021: Application of GIS and Remote Sensing in Science and Management, North Eastern Federal University, Dec 2021, Yakutsk, Russia
Communication dans un congrès hal-03502208v1
Image document

Critical Analysis of Urban Vegetation Mapping by Satellite Multispectral and Airborne Hyperspectral Imagery

Sébastien Gadal , Walid Ouerghemmi , Romain Barlatier , Gintautas Mozgeris
5th International Conference on Geographical Information Systems Theory, Applications and Management, INSTICC; University of Crete; IEEE GRSS; ACM SIGSPATIAL, May 2019, Heraklion, Greece. pp.97-104, ⟨10.5220/0007721400970104⟩
Communication dans un congrès hal-02120093v1
Image document

Knowledge Models and Image Processing Analysis in Remote Sensing: Examples of Yakutsk (Russia) and Kaunas (Lithuania)

Sébastien Gadal , Walid Ouerghemmi
5th International Conference on Geographical Information Systems Theory, Applications and Management, INSTICC; University of Crete; IEEE GRSS; ACM SIGSPATIAL, May 2019, Heraklion, Greece. pp.282-288, ⟨10.5220/0007752202820288⟩
Communication dans un congrès hal-02120100v1

Recognition of urban vegetation by hyperspectral airborne high-resolution VNIR imager (Kaunas, Lithuania)

Sébastien Gadal , Walid Ouerghemmi , Gintautas Mozgeris , Romain Barlatier
6ème édition : colloque groupe hyperspectral SFTP-GH, IRSTEA, May 2018, Montpellier, France. pp.47
Communication dans un congrès hal-01803803v1

Enjeux de connaissance et circulation des savoirs scientifiques, experts et « citoyens » en Sibérie orientale : le cas de Iakoutsk

Sébastien Gadal , Walid Ouerghemmi , Anne Tricot , Jean-Louis Ballais
Géopoint 2018 « Espaces citoyens. Sciences de l'espace et politique », Université d'Avignon, UMR ESPACE, Jun 2018, Avignon, France
Communication dans un congrès hal-01815698v1
Image document

Urban Vegetation Mapping using Hyperspectral Imagery and Spectral Library

Walid Ouerghemmi , Sébastien Gadal , Gintautas Mozgeris
IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2018, IEEE, Jul 2018, Valencia, Spain. pp.1632-1635
Communication dans un congrès hal-01852849v1

Cartographie de la végétation urbaine par imagerie aéroportée hyperspectrale sur la ville de Kaunas (Lituanie)

Sébastien Gadal , Walid Ouerghemmi
TEMU 2018 : Atelier Télédétection pour l'Etude des Milieux Urbains, Laboratoire Image, Ville, Environnement, UMR 7362 - Laboratoire ICUBE, UMR 7357 - Université de Strasbourg - THEIA - CNES, Mar 2018, Strasbourg, France
Communication dans un congrès hal-01817060v1
Image document

Hyperspectral Imagery for Environmental Urban Planning

Christiane Weber , Rahim Aguejdad , Xavier Briottet , Josselin Aval , Sophie Fabre
IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2018, IEEE, Jul 2018, Valencia, Spain. pp.1628-1631
Communication dans un congrès hal-01852844v1

Multi-Level Morphometric Characterisation of Built-ups in Siberian Sub-Arctic Urban Area: Yakutsk

Sébastien Gadal , Walid Ouerghemmi
GEOBIA 2018: From pixels to ecosystems and global sustainability, Jun 2018, Montpellier, France
Communication dans un congrès hal-01826892v1
Image document

Urban Vegetation Mapping by Airborne Hyperspectral Imagery: Feasability and Limitations

Walid Ouerghemmi , Sébastien Gadal , Gintautas Mozgeris , Donatas Jonikavičius
WHISPER 2018 : 9th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, Sep 2018, Amsterdam, Netherlands. pp.245-249
Communication dans un congrès hal-01884425v1

Urban objects classification by spectral library: feasibility and applications

Walid Ouerghemmi , Sébastien Gadal , Gintautas Mozgeris , Donatas Jonikavičius , Weber Christiane
JURSE 2017, Prashanth Reddy Marpu; Hussein Abdulmuttalib, Mar 2017, Dubai, United Arab Emirates. p23-27, ⟨10.1109/JURSE.2017.7924629⟩
Communication dans un congrès hal-01492072v1

Urban objects recognition feasibilities by airborne hyperspectral and multispectral remote sensing

Sébastien Gadal , Walid Ouerghemmi
Spatial Accuracy 2016, Jul 2016, Montpellier, France. pp.101-108
Communication dans un congrès hal-01352525v1

Identification of urban objects using spectral library combined with airborne hyperspectral imaging

Sébastien Gadal , Walid Ouerghemmi
4ème colloque du Groupe Hyperspectral de la Société Française de Photogrammétrie et Télédétection (SFPT-GH) , Institut polytechnique de Grenoble, May 2016, Grenoble, France
Communication dans un congrès hal-01819313v1

Generation of urban objects spectral database using laboratory hyperspectral imager in Kaunas city (Lithuania)

Walid Ouerghemmi , Sébastien Gadal , Gintautas Mozgeris , Vytautė Juodkienė , Donatas Jonikavičius
4ème colloque du Groupe Hyperspectral de la Société Française de Photogrammétrie et Télédétection (SFPT-GH), Institut polytechnique de Grenoble, May 2016, Grenoble, France
Communication dans un congrès hal-01819945v1

Hyperspectral and color-infrared imaging from ultra-light aircraft: Potential to recognize tree species in urban environments

Gintautas Mozgeris , Sébastien Gadal , Donatas Jonikavičius , Lina Straigyte , Walid Ouerghemmi
8th Workshop in Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, Aug 2016, Los Angeles, United States. pp.542-546
Communication dans un congrès hal-01359643v1

Morpho-spectral objects classification by hyperspectral airborne imagery

Sébastien Gadal , Walid Ouerghemmi
8th Workshop in Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, Aug 2016, Los Angeles, United States. pp.349-353
Communication dans un congrès hal-01359702v1
Image document

A Spectral Database for the Recognition of Urban Objects in Kaunas City: Performance and Morphometric Issues

Sébastien Gadal , Gintautas Mozgeris , Donatas Jonikavicius , Jūratė Kamičaitytė , Walid Ouerghemmi
Sandra Krikstanaviciute. Advanced Construction Architecture: Raw Materials and Circular Economy in the Built Environment, Sep 2020, Kaunas, Lithuania. Kaunas University of Technology, pp.71-72, 2020, ⟨10.5557/e01.2669-1922.2020⟩
Poster de conférence hal-02951336v1

The Potential of Imaging from Ultra-Light Aircraft for Urban Tree Inventories: Case Study in Kaunas, Lithuania

Gintautas Mozgeris , Sébastien Gadal , Donatas Jonikavičius , Lina Straigyte , Walid Ouerghemmi
IUFRO - 125th Anniversary Congress 2017, Sep 2017, Freiburg, Germany. IUFRO, pp.430, 2017, Interconnecting Forest, Science, and People
Poster de conférence hal-01595684v1
Image document

Urban objects classification by spectral library: feasibility and applications

Walid Ouerghemmi , Sébastien Gadal , Gintautas Mozgeris , Donatas Jonikavičius , Christiane Weber
JURSE 2017, Mar 2017, Dubai, United Arab Emirates. , 2017
Poster de conférence hal-01492070v1