
Défi Clé O3T
Earth Observation and Territories in Transition
An interdisciplinary expertise
The « Défi Clé O3T », for “Earth Observation and Territories in Transition”, is a program initiated and financed by the Occitanie region and supported by the Communauté d’universités et établissements de Toulouse. O3T aims to build and develop interdisciplinary research to link Earth observation data at all scales with the needs and expectations of local stakeholders, in a global context of transitions (environmental, social, ecological, etc.).
Earth Observation challenges in Occitanie region
Earth observation data are powerful resources for understanding how our planet functions, and for implementing strategies to mitigate and adapt to global change. They provide a global, regional or even local spatio-temporal vision, and concern many different activities, from agriculture to pollution monitoring, land use planning, meteorology, resources, etc. This global approach, essential for understanding the general context, must be accompanied by specific efforts on a regional scale to better understand not only environmental conditions, but also the associated human and social uses and issues.
Défi Clé’s ambitions
- Feder interdisciplinary groups of scientists working on E
- Earth observation for territories in transition
- Create a catalyst for the development of research addressing the challenges of territories in transition
- Lift scientific barriers to bridge the gap between observations at all scales and local players
- Unite local players in the field (research, local authorities, training, industry)
Key figures
2023
Start of the Défi Clé O3T
for 4-5 years
43
Laboratories and research centers
2M €
Budget
To finance :
Interdisciplinary scientific projects
and/or inter-sites in Occitanie (half scholarships for theses, master’s internships, post-docs)
Scientific animation
(Workshop, meetings, laboratory visits, etc.) to encourage the creation of scientific networks.
Contact
If you are interested in Défi Clé O3T activities and would like to find out more, please subscribe to our mailing list : defi-ot@irit.fr
Mailing list subscription procedure :
- Send a message to : sympa@irit.fr
- In the subject line, write : subscribe defi-ot
- Leave message body empty (unread)
- To unsubscribe, do the same with unsubcribe

The Défi Clé O3T is led by the Communauté d’universités et établissements de Toulouse, which brings together 15 higher education and research establishments, supported by the 7 national research organizations based in Toulouse.
The Communauté d’universités et établissements de Toulouse is responsible for the collective higher education and research strategy, and for territorial coordination. Its teams are active in all areas of university life: training (bachelor’s, master’s and doctoral degrees), student life, student health, research, development and corporate relations, dissemination of scientific and technical culture, international relations, environmental and social transition, real estate, campus management and operations, documentary cooperation and digital technology.
Find out more « les Défis Clés » supported by the Communauté d’universités et établissements de Toulouse

The Défi Clé O3T is supported by the Occitanie Pyrénées – Méditerranée Region as part of its “Défis Clés Occitanie” program to the tune of €2M.
To find out more