Urbanized areas – Défi Clé O3T, observation de la terre et territoires en transition

Group objectives

Establish and expand an interdisciplinary platform that fosters territorial, collective, and concrete responses to the urgent challenges highlighted by IPCC scientists.

Proposals

Building on and reinforcing what already exists
- Local structuring of the interdisciplinary research network on cities and urban territories : structuring an interdisciplinary network and ecosystem on the global theme of observing urban territories in transition.
- AST – Action scientifique transverse “Urbanized aeras” financed by the OMP – Observatoire Midi-Pyrénées: support cross-disciplinary scientific activities and extend them to our various laboratories and stakeholders (professionals, institutions, associations, etc.).
Approach at different scales (metropolises, medium-sized towns, small towns, peri-urban areas… compared with cities in the North and South, etc.).
And with different dimensions: the transition is itself multi-dimensional (ecological, social, demographic, energy, political, etc.).

Actions – Laboratory visits

To encourage members of the group to get to know each other and to organize a network around the theme of urban environment observation, the working group regularly organizes visits to laboratories.

The working group leaders

Nadine Dessay (UMR 228 ESPACE-DEV)
Aurélie Michel (ONERA-DOTA)
Najla Touati (LISST, UT2J)

The action roadmap

Read it here

Contact

If you are interested in the working group’s activities and would like to find out more, please subscribe to our mailing list :

defi-ot-urba@irit.fr

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News

Octobre 24, 2025 : Journée thématique : Données pour l’étude des territoires urbanisés en Occitanie – CESBio de Toulouse
November 21, 2023 : Workshop at l’Eurékafé to draw up the group’s strategy and guidelines for 2024 (work prior to drafting the roadmap for 2024).
October 16, 2023, and april 21, 2024 participation to AST in the OMP (Observatoire Midi-Pyrénées)’s bi-annual transverse scientific action – dedicated to urban environments, led by Jean-Louis Roujean, which aims to foster scientific exchanges and collaborations (during June 2023).
Participation in the 4th TEMU (Télédétection pour l’Étude des Milieux Urbains) workshop organized by the THEIA cluster’s “Urban” CES on February 2 and 3, 2023 in Montpellier.

Funded research (internship)

2025

Otipav Métropole

Observer les tissus pavillonnaires et opérationnaliser une densification juste en contexte métropolitain. L’objectif de ce…

Panorama recherches Climat Urbain

Optimisation et passage à l’échelle d’un outil de segmentation morphologique du tissu urbain. L’objectif général…

Segmentation morphologique

Optimisation et passage à l’échelle d’un outil de segmentation morphologique du tissu urbain. Le Cerema,…

2024

2024 – René Vallecalle’s internship, Toulouse – “Refuge areas in Toulouse. Constitution of a database and cartographic representation” – Collaboration LRA/LMDC/LISST
2024 – Renaud Nédélec’s internship, Toulouse – “Comparison of a Local ClimateZones cartography with the evolution and variation of surface temperature for the study of the Urban Heat Island” – Collaboration CEREMA / CESBio

2023

2023 – Tio Tinle’s internship ‘TAssess the expertise of members of the Urbanized Environments theme and enable acculturation of research activities.’, L3, financed by O3T
2023 – Nils Quinqueton’s internship on the study of the Paléficat district, a territory in agricultural/urban transition, as part of the OPIS project (Observatoire de Paléficat en Images et Sons). This internship was carried out in collaboration between LISST and UMR TETIS. A feedback webinar was organised by O3T.

Funded Research Theses